Book Review: Dwarf and Median Bearded Irises

by Tom Waters

Dwarf and Median Bearded Irises: Jewels of the Iris World

Kevin C. Vaughn

Schiffer Publishing, 2022

ISBN 978-0-7643-6389-4

144 pages

Books about bearded irises don’t come out nearly often enough, in my opinion. It’s been over a decade since Kelly Norris’s beautiful A Guide to Bearded Irises made its appearance, and it is especially exciting for some of us to see a book devoted to the dwarf and median classes. Whereas the heart of Norris’s book was profiles of favorite individual cultivars in all the different classes, Vaughn focuses on the classes themselves: why we grow them, where they come from, and where they are going.

The book has a simple and clear organization: a chapter for each dwarf and median class, a general chapter on culture, and a chapter on hybridizing. The last is quite innovative in books of this type. Most horticultural titles address readers solely as consumers—purchasers and growers of garden plants. But Vaughn is a lifelong hybridizer, and his enthusiasm for this hobby is infectious. It adds a whole other dimension to how we appreciate our irises, and Vaughn assumes that many of his readers will want to share this with him.

The chapters on each class set forth the distinctive qualities and uses of each, selling the reader on what each has to offer. But Vaughn goes further, giving us a historical overview of the development of each class. This dovetails nicely with the corresponding chapters in The World of Irises* (edited by Bee Warburton and Melba Hamblen, 1978), bringing each class up to present day. The work of important hybridizers who contributed to the development of each class is noted and summarized. This is an important contribution. Those who have been deep in the iris world for decades know this history, which is sort of a shared experience, transmitted by word of mouth and personal correspondence; but this book records that history and makes it accessible to newcomers.

The chapter on culture takes a very welcome, fresh approach to the subject. Instead of repeating the familiar instructions that seem to have originated a hundred years ago with gardeners in the UK and New England, Vaughn takes us on a tour of his own gardening experience in Massachusetts, Mississippi, and Oregon, and relates practices of other gardeners he has known. This opens up the subject, putting forth lots of good ideas without pretending there is a one-size-fits-all recipe.

The hybridizing chapter was of special interest to me. It should be noted that an entire book could be devoted to this subject, so this presentation is necessarily condensed. Vaughn refers readers to the chapter by Kenneth Kidd in The World of Irises*, and indeed I think it is best to use these two resources in tandem. Total newcomers will need to work some to connect the dots as they read Vaughn’s chapter. The effort is one that pays off, though, as Vaughn has a lot to share with us about how a backyard gardener can approach a hybridizing program and what the special challenges are for working in each of the dwarf and median classes.

To sum up, this book makes a fine addition to the library of anyone interested in dwarf and median irises, particularly those of us sufficiently immersed in an iris obsession to appreciate this book’s attention to hybridizing and to history.

*EDITOR'S NOTE: The World of Irises book is now out of print, but used copies can be found online. Wayne Messer and Bob Pries have also transcribed select book chapters for Iris Encyclopedia. AIS is always looking for volunteers who can type existing content into this online library. If you are interested and available for transcription projects like this, please reach out to Bob at bobpries3@gmail.com.

The American Iris Society Announces the 2022 Williamson-White Medal Winner

'BREAKFAST IN BED'

The Williamson-White Medal is restricted to miniature tall bearded (MTB) irises. It is named in honor of E. B. Williamson (1877-1933), his daughter Mary Williamson (1909-1987) and Alice White (1886-1969). Although others had introduced irises that fit into the miniature tall bearded iris class before Williamson, he and his daughter were the first to breed them as cultivars in a distinctive class of irises. They were apparently byproducts of breeding for tall bearded irises. In the early 1950s, Alice White of Hemet, California began a crusade to gain recognition for the assets of these wonderful smaller irises. She organized table iris robins and wrote many articles for the AIS Bulletin and gardening magazines promoting their virtues.

Previous awards winners can be found at https://wiki.irises.org/Main/InfoAwards.

'BREAKFAST IN BED'
photo by Mike Unser

'Breakfast in Bed' (Charles Bunnell, R. 2013) Seedling #K65B-10. MTB, 22-25 (56-63 cm). Late midseason bloom. Standards yellow (RHS 2B) blended with red-purple (71B), veined red-purple; style arms yellow; falls cream, red-purple blend towards middle end of falls, rims are bright yellow, heavily veined red-purple; beard hairs based yellow-orange, yellow tips. 'Yellow Flirt' X seedling #E24-2: ( 'Consummation' x 'Rosemary's Dream'). Introduced by Aitken's Salmon Creek Garden in 2014.

The World of Irises blog will be posting classification medal winners as soon as the hybridizers are notified. The entire list of winners, including Award of Merit and Honorable Mention, will be published on the AIS website, the AIS Encyclopedia, and later in the AIS Bulletin, IRISES.

 

Ben Hager’s Master Plan to Save the MDB Class

 by Tom Waters

Forty-some years ago, when I was a precocious iris-obsessed teenager, I convinced my mother that our vacation to California to visit my sister and her family should become a tour of iris hybridizers’ gardens. So it happened that I ended up in Ben Hager’s living room, with a huge bouquet of ‘Beverly Sills’ on the coffee table, talking irises while my mom and sister politely enjoyed the ambience and hospitality.

Hager presented a somewhat intimidating figure, with his bald head, precise beard, and dry wit. He was also something of an iconoclast. At an after-dinner speech at the 1980 American Iris Society convention in Tulsa, he basically dismantled the whole premise of the judges’ training program by asserting that judging irises was an utterly subjective undertaking; and we should give up our pretensions of authority and just let people like what they like, which is what we all do anyway.

As a hybridizer, Hager had few equals, in my estimation. He worked with all classes of irises, and won high awards wherever he turned his attention. He created the tetraploid miniature tall bearded (MTB) irises almost single-handedly, by sheer force of will, it seemed. Furthermore, he had a rare combination of creative, inspired vision coupled with solid knowledge, dogged persistence, and patience. I rank him along with Sir Michael Foster and Paul Cook as one of the true ground-breakers in the history of iris development.

Today, I want to talk about one of Hager’s grand projects, an effort to re-create the miniature dwarf bearded (MDB) class, a work that spanned four decades.

In the 1970s, new MDBs were created by hybridizers combining standard dwarf bearded (SDB) with the species Iris pumila in various combinations. There were basically three possibilities: pure pumila breeding, pure SDB breeding, and SDB x pumila crosses.

Hager rejected pure pumila breeding (although he did introduce one, ‘Ceremony’, in 1986) for two reasons. First, being just a single species, it lacked the genetic variety needed to get the innovative colors, patterns, and forms that hybridizers crave. Second, he found its growth habit (mats covered in bloom, like rock-garden plants) to interfere with the appreciation of the form of the individual iris bloom.

Hager also rejected the SDB x pumila route, although it was very popular with other MDB hybridizers of the time. The issue here was poor fertility. Seedlings from this type of cross show only limited fertility, and are almost impossible to cross amongst themselves, making line breeding an impossibility. Hager felt strongly that a class of iris can only be improved and developed if a fertile family can be established, so that breeding can continue for many generations without fertility barriers arising. He introduced no MDBs from this type of breeding.

That left pure SDB breeding as a recipe for creating MDBs. Hager recognized this as the path of greatest promise, but not without reservations. This is the type of breeding with the greatest variety of colors and patterns, and the most adaptable to mild-winter climates. MDB-sized seedlings do arise from SDB x SDB crosses, but they are the exception (most seedlings will be SDBs like their parents). Hager wanted a more focused program than just waiting for these happy accidents. He wanted a line of MDBs that would produce more MDBs, consistently.

He found his answer in his tetraploid MTB work. The tetraploid MTBs were derived from crossing tall bearded (TB) and border bearded (BB) with the species I. aphylla, a many branched iris genetically compatible with TBs, although much smaller. Crossing his tetraploid MTBs with I. pumila, he reasoned, would produce irises of the same chromosome type as the SDBs, but presumably consistently smaller. Furthermore, they would be completely fertile with MDBs from pure SDB breeding, part of the same fertile family. You may read one of Hager's articles on this plan on the DIS website.

'Libation'

'Gizmo'

'Prodigy'

  

Hager introduced the first MDB of this type, ‘Prodigy’, in 1973. Its pod parent is a seedling of TB ‘Evening Storm’ (Lafrenz, 1953) X I. aphylla ‘Thisbe’ (Dykes, 1923). The pollen parent is the I. pumila cultivar ‘Atomic Blue’ (Welch, 1961). It is thus ¼ TB, ¼ aphylla, and ½ pumila.

Next came ‘Libation’ in 1975. It is a child of ‘Prodigy’ crossed with a seedling of MTB ‘Scale Model’ (Hager, 1966) x I. pumila ‘Brownett’ (Roberts, 1957). Since ‘Scale Model’ is half TB and half aphylla, ‘Libation’ has the same ancestry breakdown as ‘Prodigy’: ¼ TB, ¼ aphylla, and ½ pumila. ‘Libation’ won the Caparne-Welch Award in 1979.

The third and final of these initial progenitors of Hager’s MDB line is ‘Gizmo’ (1977), with the same parentage as ‘Libation’.

Hager then set about crossing these (and similar seedlings) with SDBs and MDBs from pure SDB breeding. As such outcrossing progressed, the amount of aphylla ancestry decreased and the amount of TB ancestry increased. The goal was to retain the small size conferred by I. aphylla, but bring in the diverse colors and patterns of the SDBs. Hager now had a line of seedlings specifically designed to consistently yield fertile MDBs in each generation.

In all, this project produced 34 MDB introductions. Hager died in 1999, but Adamgrove garden continued to introduce his MDB seedlings through 2003. Hager also introduced 19 MDBs from pure SDB breeding, and the above-mentioned pumila ‘Ceremony’.

Here is a list of all 34, grouped by the amount of aphylla ancestry present in each.

25% I. aphylla

Prodigy (1973), Libation (1975) Caparne-Welch Award 1979, Gizmo (1977) Caparne-Welch Medal 1987

Between 12% and 24% I. aphylla

Grey Pearls (1979), Bluetween (1980), Macumba (1988)

Between 6% and 11% I. aphylla

Footlights (1980), Bitsy (1991), Cute Tot (1999)

Between 4% and 5% I. aphylla

Pipit (1993), Jiffy (1995), Self Evident (1997)

3% or less I. aphylla

Three Cherries (1971), although not part of this line, is listed here for completeness, since it has aphylla in its ancestry from the appearance of TB ‘Sable’ (Cook, 1938) in its pedigree.

Petty Cash (1980), Hot Foot (1982), Bugsy (1993) Caparne-Welch Medal 2000, Dainty Morsel (1994), Doozey (1994), Fey (1994), Fragment (1995), Hint (1995), Chaste (1997), Ivory Buttons (1997), Nestling (1997), Trifle (1997), Simple Enough (1998), Small Thing (R. 1998), Sweet Tooth (1999), Wee Me (1999), In Touch (R. 1999), Downsized (2001), Dulcet (2001), Pattycake Baker Man (2001), Behold Titania (2003), Fair Moon (2003), Gallant Youth (2003), Into the Woods (2003), Pirate's Apprentice (2003)

'Grey Pearls'
photo: El Hutchison

As far as I can determine, other hybridizers did not take up this project as Hager had envisioned it, although they did of course use a number of his irises in their own crosses. My own work with similar crosses has had mixed results. I cross tetraploid MTBs with pumila each year, but so far have only bloomed one cross to evaluate, MTB ‘Tic Tac Toe’ (Johnson, 2010) X I. pumila ‘Wild Whispers’ (Coleman, 2012). The seedlings were all too large for the MDB class, looking like elongated SDBs or MTBs with deficient bud count. So the MTB x pumila type of cross is by no means guaranteed to give MDBs in the first generation.

I do have an interesting MDB seedling from I. aphylla X I. pumila. This type of cross produced MDB ‘Velvet Toy’ (Dunbar, 1972). My seedling is 5-6 inches in height, and has a distinctive flowering habit. It is branched at the base like I. aphylla, with both branches bearing 2 terminal buds each. The four blooms open in succession, at the same height, with no crowding. It would be nice to see if this trait could be carried on to plants with a more refined flower. Crossing it with SDB ‘Eye of the Tiger’ (Black, 2008) gave seedlings that were SDB size or taller, though in a fun variety of color and pattern. I continue to make crosses with it, mostly selecting smaller MDBs to pair with it now.

So far, my work with I.reichenbachii X I. pumila seems the most promising in terms of giving me a consistent MDB line to work with.

Kevin Vaughn has reported good results using Hager’s ‘Self Evident’, and I have recently acquired this myself, as well as a few others from Hager’s line.

How should one assess this ambitious program? On some level, it can surely be deemed a success, as it gave Hager many successful and popular MDB introductions. Without detailed records from his seedling patch, however, it is hard to assess how consistent the line was or how much his selection work over the years contributed to the outcome. Perhaps similar results would have obtained just by applying the same selection effort to pure SDB lines.

'Self Evident'
photo: Jeanette Graham

We also have to note that Hager’s tetraploid MTB project is his most lasting legacy among the bearded irises classes. Tetraploid MTBs are here to stay, having been taken up by successive generations of hybridizers. The MDB project did not fare so well, although that may not be any fault of the plants themselves. Almost all new MDBs today are small selections from pure SDB breeding, not produced from MDB-specific lines as Hager envisioned. This may just be a numerical inevitability. There is so much work being done breeding SDBs that MDBs popping up in SDB seedling patches just can’t help but outnumber MDBs from the few dedicated lines that hybridizers have worked with. The situation is reminiscent of that of the BBs, where some good dedicated lines have been established, but they are still swamped by small selections from TB crosses, just because so many more TB crosses are made each year.

'Bugsy'
photo: El Hutchison

If you are interested in hybridizing MDBs, I encourage you to heed Hager’s wisdom and work toward MDB-specific breeding lines, perhaps using I. aphylla, perhaps carefully selected from SDB work, or perhaps using other species.

If you are not a hybridizer, but enjoy growing MDBs in your garden, please seek out and preserve the Hager MDBs discussed in this post. They are a window onto a fascinating thread of iris history.

 

 

The American Iris Society Announces the 2021 Williamson-White Medal Winners

'MOOSE TRACKS' and 'HOOSIER BELLE'

The Williamson White Medal is restricted to miniature tall bearded (MTB) irises. It is named in honor of E. B. Williamson (1877-1933), his daughter Mary Williamson (1909-1987) and Alice White (1886-1969). Although others had introduced irises that fit into the miniature tall bearded iris class before Williamson, he and his daughter were the first to breed them as cultivars in a distinctive class of irises. They were apparently byproducts of breeding for tall bearded irises. In the early 1950's, Alice White of Hemet, California began a crusade to gain recognition of the assets of these wonderful smaller irises. She organized table iris robins and wrote many articles for the AIS Bulletin and gardening magazines promoting their virtues.

Editor’s Note: Due to the pandemic last year, the American Iris Society Board of Directors suspended garden awards. As a result, and for only this year, two medals will be award in this area. Previous awards winners can be found at https://wiki.irises.org/Main/InfoAwards.

 

 MOOSE TRACKS (Lynda Miller)

'Moose Tracks' (Lynda Miller, R. 2014) Seedling #2010E. MTB, 18"-20" (46-51 cm). Midseason to late bloom. Standards medium gold, veined smoky plum; style arms gold, smoky plum accents; falls black veined over white becoming solid maroon-black at bottom of petal; beards dark gold. Seedling #104A, unknown X 'Rayos Adentro'. Salmon Creek 2015. 

HOOSIER BELLE (Charles Bunnell)

'Hoosier Belle' (Charles Bunnell, R. 2011) Seedling #G30-5. MTB, 20-22 (5136 cm), Midseason bloom. Standards light lilac lavender, sometimes aging to near white; style arms very light lavender; falls dark violet, prominent white hafts extending midway, distinctive white rim; beards white; slight spicy fragrance. Seedling #D21-2: ('Oshel Blue' x 'Lucky Mistake') X unknown.

The World of Irises blog will be posting classification medal winners as soon as the hybridizers are notified. The entire list of winners, including award of merit and honorable mention, will be published in the AIS website, the AIS Encyclopedia, and later in the AIS Bulletin, IRISES.

 

A Trip Down Memory Lane - Part Two

 By Maggie Asplet

Gosh, it seems like only yesterday and I was writing part one.  So, on with the rambles from an old lady.

Part one had us visiting other places and not just spending all our time at Mid-America Iris Gardens.  Mind you, we didn't mind not leaving, but just so many irises to see and you can never look at them too many times.

A beautiful sunset from the paddock down the road from where Thomas & Kirk live.

(Paddock is Kiwi speak for field.)

The learning experiences, the sharing of knowledge, or perhaps I should say listening to the experts knowledge, is just so invaluable, and just shows you how "so little I know".

Something that some might thing rather trivial can be of great value to another person.  Photos do make explaining yourself to someone else so much easier.  During my last trip I took particular notice of the watering system Thomas used and what connections etc.

Watering system at Mid America

My watering system.  The fitting are much the same and I must say having the picture from my trip sure made it easier when trying to explain what I wanted.

For me, the very best part is learning from others.  Others that were always so willing to share their knowledge and experiences.  

First, I will look at the work of Lynda Miller and her work with MTB's.  They are stunning, just such a delicate bearded iris on such elegant stems.  I think it is fair to say that these are perhaps my favourite of the bearded irises.

Lynda discussing irises with Bailey (from Smokin Heights, Australia)

Here we have 3 of Lynda's seedlings

One of Lynda's registered MTB's.

A sight to behold, watching Keith Keppel evaluate his irises, then discussing with him why he makes the choices he does.  So very talented when it comes to hybridising.  Those years of experience tells him just what the outcome "may be" like, whereas I am still in the category of not knowing at all.

His iris patch, although it decreases in size each time I visit is just amazing.  If it were me having to make a choice of which seedling to keep, I think they would all be staying.

Photo on the left is Keith evaluating his seedlings

One the right you have Wendy (NZ) and Melissa (Australia) taking photos in Keith seedling patch.

I feel that to stop speaking about these different people is like not acknowledging them at all and there are still more that have had an impact on my irises and what I am trying to achieve.  I feel like there is a part 3 coming, as I would also like to just talk a little about attending the Regional meetings.

Each trip that I make, I always try and attend the Regional meeting in Oregon as there are many people there that I met in my first ever trip in 2015 when 23 New Zealanders went to Convention.  So many great friends were made.

From these friendships and from one person introducing another, we had the privilege of Patrick and Margaret Spence coming to our convention (Gisborne, New Zealand) in 2018.  Such a great time and then great to catch up with them again in the States.

While Margaret was here, she liked a top I had and wanted to know where I got it.  To cut the long story short, she now has a top the same as mine.  I had packed mine, never told Margaret - Guess what happened at the Regional Meeting.

I'm the one wearing glasses, oh we both are.  I'm the one with the cell phone in my hand.

This now leads me into the attending Regional Meetings and as this will be expanded quite a bit, I think this will be a good place to end.

SO, Part 3 it will be, covering some of the other amazing people and the Regional Meeting.

It is my great hope that 2022 will see the return of us from down under.

Hybridizing with Iris reichenbachii

by Tom Waters

Four years ago, I wrote a blog post here titled “The Untapped Potential of Iris reichenbachii”. At that time, I could comment on the use of I. reichenbachii in median breeding only as a promising theoretical possibility. Now, however, I have some solid results from my own hybridizing work to share.

As mentioned in the earlier post, I. reichenbachii exists in both diploid and tetraploid forms. The diploid forms can be used with diploid MTBs, while the tetraploid forms are compatible with TBs, BBs, and tetraploid MTBs. It was the tetraploid grouping that I was interested in, so my first priority was to acquire tetraploid forms of I. reichenbachii. Alas, none of the plants or seeds available commercially or through seed exchanges have been identified as either diploid or tetraploid, so I had to make this determination myself. Not being equipped to make chromosome counts, this meant making test crosses and patiently waiting for the results.

Happily, it turns out that the tetraploid forms are not uncommon. The first two reichenbachii forms I started crossing with both turned out to be tetraploid. One is a yellow form, a collection from Mt. Vikos in Greece. The second is actually a group of plants of unknown origin I raised from seed obtained from a collector in Czechia. Most of these are violet.

I. reichenbachii ex Mt. Vikos, Greece

Waters T009-02, purple tetraploid I. reichenbachii

Waters T051-01,
I. aphylla X I. reichenbachii ex Mt. Vikos

I have three fertile tetraploid seedlings now. The yellow Mt. Vikos form gave me seedlings with I. aphylla and with the tetraploid median plicata ‘Saucy’ (Craig, 1998, IB). One of the violet forms gave me a seedling with the tetraploid median ‘Night Mood’ (L. Markham, 2003, SPEC-X). All three of the seedlings fall in the SDB height range and have the slender stems of I. reichenbachii. None are any competition for the modern, ruffled, dramatically colored median hybrids being produced these days; rather, their value is in further breeding. Because these plants are so small and dainty, they can be used to add these qualities to tetraploid MTB or BB breeding programs. So the next step is to cross these seedlings with the best modern BBs and tetraploid MTBs. It would be nice to have all the color patterns, form, and substance the modern BBs have to offer, but in a line of plants that was consistently small and delicate. This project is already well underway, as I have hundreds of seeds from using these seedlings over the past two years.

Waters T059-02,
Saucy X I. reichenbachii ex Mt. Vikos

Waters T060-01,
Night Mood X T009-02

A second project using I. reichenbachii is directed toward producing dainty MDBs. Most modern MDBs are produced by accident - they are just seedlings from SDB crosses that fall below the 8-inch height limit. These MDBs can be very lovely in terms of flower form and color pattern, but they can easily grow out of class, and often lack the daintiness and early bloom that one hopes for in a true miniature dwarf.

SDBs are the result of crossing TBs with the dwarf species I. pumila. What if one used I. reichenbachii instead of TBs? The result should plants fully fertile with SDBs and modern MDBs, but much smaller. I have three seedlings so far (more on the way) from crossing the Mt. Vikos reichenbachii with the I. pumila cultivar ‘Royal Wonder’ (Coleman, 2013, MDB). One is purple, the other two are yellow. All our about 5 inches tall, with one or two terminal buds. They bloom earlier, overlapping the pumilas and the first MDBs. They are indeed fertile with SDBs and with MDBs from SDB breeding. Once again, the value of these seedlings is not in competing with the showiest modern hybrids, but in further breeding, where they can be expected to produce a line of consistently dainty and early-blooming MDBs. Again, this project is on its way forward, with many seeds from using these seedlings with modern MDBs and SDBs.

Waters S026-01,
I. reichenbachii ex Mt. Vikos X Royal Wonder

Waters S026-02,
I. reichenbachii ex Mt. Vikos X Royal Wonder

These projects using I. reichenbachii are not for the impatient; they are multi-generation endeavors. Yet, there is something uniquely satisfying in breaking new ground.

On the Road Again: The Vaughn Garden in Salem

By Bryce Williamson

After a too short visit to the Keppel garden—it would be possible to spend days there watching the bloom unfold, it was on the road again this time to head south of Salem to the garden of Kevin Vaughn.

Vaughn T-18-1
A tetraploid MTB voted  best seeding at the 2018 Region 14 Spring meeting.

When Kevin retired from the USDA job, he found 3 acres south of Salem. Just as Lynda Miller had provided a short cut to get to her garden, Kevin had told me a quicker way to get to his garden by skirting the east side of Salem before cutting over to his place on

River Road.

Kevin brings a wealth of scientific knowledge to irises and he as been a frequent and useful contributor to The World of Irises blog. While working for the USDA, he published over 160 scientific papers and recently he wrote Beardless Irises A Plant for Every Garden Situation and is now working on a book about median irises. His Louisiana irises have won awards and in 2019, his ‘Lemon Zest’ was one for the winners of the Mary Swords Deballion Medal for Louisiana irises.

He has been raising Siberians and out of the selections below, several will be introduced when stock allows.

His hybridizing interests in irises ranging from dwarfs through tall bearded and including in addition to the above Siberian seedlings, Louisianas and Spurias, and that interest is match also  by his interest in hybridizing other types of plants too. In his twenties, Kevin was a bright star of hosta breeding and the American Hosta Society have honored Kevin's contributions to the development of the genus Hosta by establishing in 2001 the Kevin Vaughn Award, which is given to the entered sport that is chosen as Best Overall by the AHS Judges.

With a new garden, Kevin has returned to hosta hybridizing something that he could not do during his years stationed in the South for USDA.

From his early teens, he was interested in breeding sempervivums and continues to do so. To find out more about his creations in that area, follow the this link. Daylilies and daffodils have experienced his touch; most recently he has seed from miniature gladiolus. A trip to this garden is always rewarding.

In the last two years, one of the most interested bearded irises in the yard is a Witt seedling—Kevin is growing the last of Jean Witt’s irises and the first of the selections, ‘Just A Dusting’, will be introduced by Aitken’s Salmon Creek in 2020. The most interesting diploid iris in the garden is the reddest beard iris any of us have seen. It will never be introduced since it is too big for the MTB class, but some of us are growing it in the hopes of using tetraploid pollen on it and get—if we are very lucky—a tetraploid from those crosses that should bring new a new source of red pigments into tall bearded irises.

To make sure he does not get stale in retirement, he is also an accomplished musician playing wind instruments, mainly oboe, in Salem Symphonic Winds, Salem Orchestra and Winds of the Willamette wind quintet.  From time to time he also plays for musicals and other groups.

In between checking out plants and great conversation that continued over dinner at Roberts Crossing Restaurant on River Road (why can't we have a high quality, reasonable priced eatery in my neighborhood like this?), Kevin and I made a dash to Larry Lauer's garden nearby garden and that will be the subject of my next 'On the Road Again' post.

Did We Give Up on the Recessive Amoenas too Early?

By Kevin Vaughn

Amoenas and variegatas have long been favorites of iris growers.  The early amoenas and variegatas were all derived from I. variegata and had many problems associated with that species, chiefly very veined hafts, and a pattern of striped falls rather than solid ones.  Breeders were persistent in their work, despite poor germination of crosses involving amoenas. Cultivars like the Dykes Medal winner dark purple amoena ‘Wabash’ and variegatas like ‘Mexico’ and ‘Pretender’ were very popular irises in their day and had covered up most of the problems in this breeding line.  In fact, ‘Wabash’ topped the AIS popularity poll for many years. Crosses of these recessive amoenas to yellow amoenas resulted in the unusual green amoena ‘Frosted Mint’ (one of my childhood favorites) and red amoena ‘Repartee’. (Editor's note: Kevin sent images of seedlings as examples and I do not have numbers for any of these photos, but they give an idea of what he is getting out of these lines.)

A revolution happened in the 50’s when Paul Cook found that I. reichenbachii had a dominant inhibitor of the TB anthocyanins in the standards only, resulting in amoenas, neglectas, and bicolor patterns only dreamed about in the past.  Paul’s ‘Whole Cloth’ won the Dykes Medal and most deservedly so as it was not only a beautiful iris but an important breeders’ iris as well. Almost all breeders made a few crosses with ‘Whole Cloth’ and generally with good results.  Moreover, these dominant amoenas had seed that germinated well and the flowers had none of the veined hafts so typical of the recessive amoenas of the past. People flocked to these amoenas, basically dropping the old recessive amoenas, although Jesse Wills, Catherine and Kenneth Smith and a few other brave souls kept the recessive amoenas going for a while. Catherine Smith’s ‘Bread and Wine’ may be the last of these, in the 1970’s.

In the MTBs, recessive amoenas and variegatas are alive and well!  In fact, if you breed MTBs you can’t help but getting them in spades.  As I looked through my patch of MTB seedlings this past spring, I saw many colors and patterns that I have not seen much or at all in the TBs.  The variety of variegatas is quite staggering, including those with patterning of colors on the falls, stitching on the standards, and several just in STRIPES.  In the opposite direction, my ‘Booyah’ and many of its seedlings had nearly solid falls with minimal haft marks. Amoenas followed the same patterns, with some striped variations in delicate stripes and some all-over versions as well as nearly solid colored falls.  When Rick Tasco, Roger Duncan and Keith Keppel stopped by one day, they were equally impressed in the variety of colors and patterns that were occurring in these recessive amoenas and variegatas.

When these recessive amoenas and variegatas are crossed into the plicatas and then recombined the variety of plicata patterns also increased with lots of strong bitoned and bicolor plicatas plus unusual distributions of the dots and spots.  I inherited a number of Jean Witt’s seedlings and she had explored these variegata-influenced plicatas a good bit. Crosses with them give even further variations. Some of these plicatas have the looks of things that Rick Ernst got out of his ‘Ring Around Rosie’ lines.  These tetraploid lines may have some variegata influence too.

Catherine Smith sent me a plant of ‘Repartee’ when I was a kid. I was impressed with how red the falls of that iris are and especially so when it bloomed in my garden in 1968!  Amazingly it still looks very red to me. ‘Repartee’ is a cross of the purple neglecta ‘Grosvenor’ with a yellow amoena and that overlay of strong purple with an inner yellow layer gives a very red effect.  Admittedly, ‘Repartee’ has some problems. The stalk is awful with buds toed in and the form of the flower is a bit “blobby”, although I have seen worse.

Fortunately yellow amoenas have improved a LOT since 1968 and I crossed several of them onto ‘Repartee’.  The F1 crosses of ‘Repartee’ X yellow amoenas gave almost all red amoenas/ pale variegatas. The stalks on these were much better than ‘Repartee’ and the forms began to approach the yellow amoenas.  Rather than sibbing these seedlings, I crossed them once again to yellow amoenas, hoping to obtain even better form. Those seedlings bloomed in 2018 and the improvements were noticeable. Much better forms and quite red falls were the norm.  Interestingly, several of these seedlings didn’t have solid falls but rather a splashed phenotype. Yellow amoenas have the dominant inhibitor I that suppresses anthocyanin production but the anthocyanins in amoenas are not fully inhibited by this gene.  It is possible that these anthocyanin-free sectors are due to some partial inhibition by I.  None of these is quite a finished product but they are interesting and with quite good color and very vigorous plants.  I’ll see ~50of the best of these red amoenas sib crossed (best form X best color) in the spring. I don’t expect any introductions from this line in the near future, but it’s been fun to see what the recessive amoenas can do.

This makes me wonder out loud whether we were wise in giving up on recessive amoenas too early despite their many problems.  Hopefully there will be a few more brave souls out there to use them in crosses.