Betty Ward Wilkerson

It is with sadness that The World of Irises announces the death of our longtime blogger, Betty Ward Wilkerson. Betty was a hybridizer and proponent of reblooming irises that grow and bloom in colder climates. Over the years, Betty shared her insights with our readers as she created new hybrids in her taxing climate in Kentucky, using the best of mild climate rebloomers with cold climate parents. She released her introductions through her Bridge in Time garden.

Summer Radiance

Her enthusiasm and expertise will be missed by all. Although in treatment for cancer, Betty had started a new blog when she became too ill to finish it. She stopped in mid-sentence, but we are posting it since it shares her last thoughts on reblooming irises. After working so many years to expand the reblooming gene pool, Betty wanted others to take up the banner of reblooming cold weather rebloomers. The World of Irises extends our sympathy to her family.

All Revved Up

In her unfinished blog, Betty wrote:

“Winter seems to come twice a year these days!  Guess I should be happy since that's twice as many musings and less hot sweaty garden days?  Not really!  I thought it was time I get down to one of my serious problems with irises and the way rebloomers reported.

About Tomorrow

“If I were to build a program by which rebloomers are reported throughout the country it would look something like this. 1:  All rebloomers would be listed according to the areas in which they were developed 2.  They would be reported based on where they have rebloomed.

“For instance, my own 'Cool Character' would be listed to for KY, CA and VA.  These are the areas that have reported so far and it's a relatively new introduction. As other states report, they would be added.

All About Tranquility

“You say this is not realistic?  It would take too much work on the part of the people that produce the catalogs?  I would have to agree.  It depends on too many variable, not the least of which is the interest of the people doing the work.  If a problem isn't important to their interests most people will not get involved.

“This is why the rebloom society has worked so hard to create the Reblooming Checklist and to keep it updated. This work has, primarily, fallen on the hybridizers and the reblooming royalty, the crew to which we owe this wealth of information.  The hybridizers use the information to create the next generations of rebloom.  Simple?  It's really a bit more complicated than you might expect.  There are a lot more ugly ducklings than you might imagine.  Just for fun, let’s look at some of the ugly ones first!  No?  Okay, I'll spare you the agony!

About Tomorrow

“Let's talk about…”

All photos by Betty Wilkerson except the final one by her son Chris.

Really Late Fall: Kentucky Zone 6

by Betty Wilkerson

My garden is a working/hybridizing garden with the goal of breeding some of the newest and best reblooming irises for the cooler zones 5 and 6. The 2016 bloom season has truly been one of the most beautiful iris years in my recent memory.  How lucky could I get? After a late spring and summer full of rebloom, I get early and late blooms!   Fall was in no hurry to leave my Kentucky garden, and I was in no rush to have it leave. There have been a couple of fall seasons when my body was weak, but my love affair with iris has not grown any weaker as the years pass. No hard freeze until November 11.  Thanks, Mother Nature!

'Luminosity' (Byers 1991)

 'Luminosity' is a bright beacon in the fall garden.  As the fall sun grows lower in the sky, more and more stalks appear in the clump.  It doesn't bloom this strong every fall, but when it does blooms there are usually several stalks.  The stalks are perfect this year, showing me it could be a good choice for future breeding.

Gate of Heaven (Zurbrigg 2004)

 'Gate of Heaven' was reported in an earlier version, but it did continue to bloom all the way to the freezing frost.  There were eight or ten fall stalks.  I've moved a clump of this and another of 'Immortality' near the new rebloom perennial bed and, therefore, easy to use in the spring, as that is when I do my breeding.  

2612-03Re (Wilkerson seedling)

2611-03re (Wilkerson seedling)

 Several of my reblooming seedlings performed well this fall.  2612-03Re will be a good one if the stalks can grow taller in the future.  It grew three stalks.  2611-03Re is one of my favorites from the 2611 cross as it has a brownish cast which pales after opening.  It has perfect branching, a great bud count and it's tall.

'Cool Character' (Wilkerson 2013)

 'Cool Character' was beautiful this fall.  The standards are a very pale lavender when first open and pales to pure white.  Falls are white with a band of purple.  Multiple tall, robust stalks with a great bud count.  I was a great contrast with 'Star Gate' which blooms beside it.

'Lunar Whitewash' (Innerst 2004) 

 'Lunar Whitewash' has been one of the great reblooming promises of the modern ages.  I've used it several times in breeding and will probably do so again before I'm finished.  The branching is not always poor, as expected, but it's not always good, either.  It bloomed this fall even though it had only been moved to this spot in the spring.

Below are three pink or pinkish irises that bloomed this fall.  Unfortunately, they probably used up most of their energy, and they may not bloom in the spring.  If I'd known the cold weather would be so long in raising it's frosty highlight, I'd have made some crosses early in the fall!  Such is not my practice.  Sherri's pretty chicken was at large in the one picture.  

'Cameo Blush' (Weiler 1998)

'Priscilla of Corinth' (Miller 1994)

'October Splendor' (Sides 1997)

'Cool Character,' (2013) Start Gate' (2005) & 'Echo Location' (2007) (Wilkerson)

The three in the last picture are all Wilkerson introductions.  They are some of my best creations.  I look forward to posting more reblooming seedlings as the 2017 year is near!  My 2016 seedlings will be sprouting between late February and late April, but most likely they will begin in mid March.

For winter research I recommend going into the Blog archives here, and going to The Reblooming Iris website @ www.rebloomingiris.com.  All of the iris groups on Facebook have a search feature that will help in iris research.  I also recommend looking at the websites of people who sell reblooming irises like http://www.walking-p-bar.com/ & www.schreinersgardens.com, not to buy, but to research what is available.

Reblooming Iris Breeding in Zone 6 Kentucky-Cross # 2527

In this post we're dealing with dominant (selfs) and recessive (plicatas) traits and the resulting seedlings. There are many dominant traits and many recessive traits, but this will only deal with selfs and plicatas.  Lots of fun and a few surprises.

'All Revved Up' is one of my plicata rebloomers. It is a child of 'Radiant Bliss' and contains some genetic material for color from the west coast, mainly 'Gigolo.'  It has bloomed in all months from May through October.  'Lunar Whitewash' is a white reblooming iris introduced by Sterling Innerst. It is a good cycle rebloomer. Both are rebloomers and both have good form.  'All Revved Up' has good branching and bud count, but is a little short, while 'Lunar Whitewash' has great form, but really lousy branching.  The goal was a really good meeting of the genes and interesting colors.  

'All Revved Up' with 'Lunar Whitewash' behind. 

Pod Parent 'All Revved Up' (Wilkerson 2007)

Pollen Parent 'Lunar Whitewash' (Innerst 2000)

If you cross two plicatas you will get mostly, and usually all, plicata seedlings. With a decreasing number of plicata genes within the solid or self, you will get a varying number of plicata seedlings, but most will be selfs, bicolors and variegatas. If there are no plicata genes in the self, as appears to be the case with 'Lunar Whitewash,' there will be no plicatas, but there will be haft lines.  

2527-01 (Wilkerson Seedling)  

2527-02 (Wilkerson seedling)

The seedlings have varied with most being the same or near the combination of 2527-02. This is my favorite of the purples since it produces a large number of stalks and blooms.  The white one, 2527-01, is a bit taller with really consistent spring stalks, and probably my favorite of all the results.  Although any color is possible with this combination, the yellow, 2527-06yellow, came as the biggest surprise to me.   Lack of rebloom was the most shocking, but they were in a bad bed.  

2527-06yellow (Wilkerson seedling)  

In earlier years, plicatas provided a large part of the base for rebloom.  It should be no surprise when haft lines show up with plicatas x self crosses.  It's been explained to me that this is not a "plicata effect," as I'd thought, but simply that the lines are not considered a default in the plicatas so they were not bred out of them, therefore, they show up in the children.   

It's not uncommon for my gardening to overreach my ability to keep all of the beds clean of weeds, since I prefer breeding to weed pulling.  These pictures are taken to document flowers for my breeding program, and I never thought they would be viewed by the public.  Please forgive the weeds.

Reblooming Iris Program in Zone 6: "But That's Too Old!"

by Betty Wilkerson

Over the past thirty years, I've grown most of the irises reported to rebloom, and used many of them in breeding. I've produced and grown many iris seedlings that I thought would rebloom, but most have not.  Over the past ten years, as I've tried to encourage others to breed rebloomers, I've often suggested certain strong rebloomers. Ninety percent of the time or more, I'm answered with, "That's to old." or "That's to plain." Of course, they are right, but if we want rebloom, it seems this is the path we must take in zone 6. Most of the rebloomers, introduced in the past thirty years, either don't ever rebloom in my garden, or miss most years. In order to breed rebloomers you may want to use some of the older and more tailored rebloomers.  

My advice would be to grow a handful of strong rebloomers, and experiment with the crosses.  Grow some known rebloomers that are strong in the type of rebloom you want to produce, even fall rebloom if that makes you happy.  Add a few good color genes if you can, but know that the closer you stay to strong rebloom, the more rebloom you are likely to get in your seedlings. Mainly, be happy with your crosses, otherwise there is no point.
  

'Blatant' (Byer's 1990)

'All Revved Up' (Wilkerson 2007) 

Several years ago, John Van Hook visited my garden on a regular basis, and he often urged me to use 'Blatant' as a reblooming parent. Like everyone else, I didn't want to use it because it was "older & plainer." Eventually, I put pollen from 'All Revved Up' (Wilkerson 2007) onto 'Blatant' (Byer's 1990).  I lined them out, fertilized well, and watered on a regular basis.  The cross is approximately 75% plicata so I got plicatas, selfs, saturated variegatas, one white with yellow standard rims and fall rims, and one white glaciata.  A total of 13 rebloomed, including the glaciata.  

'Cool Character' (Wilkerson 2013)

1907-10Re (sibling to 'Cool Character'

1910-10Re (sibling to 'Cool Character.') 

Another rebloomer that I've been reluctant to tell people to use in breeding is 'Violet Returns' by Earl Hall. It's a half sibling to 'Feed Back.' It's both older looking and more tailored, but it produced one of my best reblooming seedlings, 1625-01Re.  'Star Gate' is the pod parent and my 'Violet Returns' X 'Breakers' child is the pollen parent.  Again, it's plainer and shorter than desired.  

2006-01Re is from ('Chinese New Year' x 'Theme Master') X 1625-01Re.  All this one really needs is a touch more form.  It has great height and branching which I attribute to 'Chinese New Year.'  

2006-01Re seedling

2008-01Re Wilkerson seedling

Another child of 1625-01Re is just above, 2008-01Re.  It's not particularly modern, but did rebloom a lot. Yes, it is hard to get modern form when using these more tailored varieties, but this is where the reblooms seems to reside.  Also, rebloom passes most easily when working with plicatas.  I've had really good luck with 'Earl of Essex,' and 'Over and Over.'  'Earl of Essex' is good for working with fall/cycle rebloomers, while I expect 'Over and Over' to work better when working for summer/whenever rebloomers.  More work with 'Over and Over' is in the future.

I've recommended 'Over and Over,' since it's one of the strongest rebloomers I've grown. Most people say they don't want to use it.  Few say it's because it's too plain, but don't offer other reasons.

'Over and Over' (Innerst 2001)

The picture above is not one of the best pictures, but does show some of it's potential faults. It would probably be best to make the cross both ways, just to satisfy your own curiosity as to which way is best.  If you have better pictures of 'Over and Over,' and you are willing to let me use them in my blogs, please send them to me at bridgeintime@aol.com, with permission to use.  

Keep in mind that my reports are from work in my own garden in south central Kentucky.  I'm on a ridge, above a creek. The garden was a former pasture. Your results may be different than mine.   

What if? Reblooming Iris Breeding in Zone 6:KY

by Betty Wilkerson

My current goal, for breeding better rebloomers in my garden, is to use a handful of good looking seedlings as pod parents.  Two of my introductions, which I plan to use for this purpose, are 'All About Tranquility' and 'About Tomorrow.'  'All About Tranquility' is 'Chinese New Year' X 'Theme Master.'  The color pattern is one of my favorites and the branching is very good. 'About Tomorrow' also has great form and branching. It is from 'Treasured' x 'Renown.'

'All About Tranquility' (Wilkerson 2011)

 'All About Tranquility' was growing at the UT West Tennessee Research and Education Center in Jackson, Tennessee in a bed maintained by JAIS.  Photo shared by Sue Ann Barnes former Region 7 RVP.

'About Tomorrow' (Wilkerson 2011)

Below are some of the seedlings I would like to use with the above pod parents.  Some have been used and others will be if things ever fall into place.  Sometimes Mother Nature steps in and stops your best plans.  Buds are frozen back. Pollen isn't fertile.  Seed rot.  Many things can happen to thwart your plans, but most of the crosses have around a 50 % chance of taking.                                                                                         

'1605-02re' (Wilkerson seedling)

I've used fall or cycle rebloomers with some of the summer rebloomers.  1605-02Re is such a fall rebloomer, and these are the irises represented:  0915-01:(((Victoria Falls x Vanity) x Immortality) x Love Lines) X 1025-03 (Feed Back x Champagne Elegance).

2410 (Wilkerson seedlings) 

'2410'contained several tall seedlings with a variety of colors, white, purple, and bitone blue.  1624-01re ('Sweet Addiction) is ('Star Gate' x ('Bridge In Time' x ('Feed Back' x 'Titan's Glory))) X 2019-05 (Lunar Whitewash x Romantic Evening). Both seedlings used in this cross were white.  

1907-10Re (Wilkerson seedling)  

This seedling is the strongest rebloomer from 1907 ('Blatant' x 'All Revved Up').  This cross produced several rebloomers, two summer bloomed.  'Cool Character' was introduced from this cross.  

Rebloom breeding is more difficult than trying to improve a color or pattern.  On the plus side, you are already dealing with strong, healthy plants.  Always a good thing.

What would you use with these in an attempt to create good rebloom in the inner continental areas?  

Some of My Best Rebloom Parents in Zone 6

by Betty Wilkerson

'Earl of Essex' has been used by many people and it has produced many rebloomers, but I'm not sure it has received all the praise it deserves. It is one of my favorite parents due to the fall form, which is round, and its willingness to pass on its rebloom genes.  On the negative side it is a cycle rebloomer, it is short, and it is a plicata.  Those are drawbacks because I work with summer rebloomers, prefer tall seedlings, and dislike the messy hafts that come along when crossing plicatas and selfs.  I've been told that the messy hafts come along with the plicata breeding since they have not been removed from the plicata gene set, and although these genes are not specifically a part of the plicata gene, they ride along with it.  

'Earl of Essex' (Zurbrigg 1979)

Common sense tells me that the shorter plant should be used as the pollen parent with the taller plant being the pod parent, but this is not possible when you don't grow both plants. Sometimes we get pollen from other growers, you see.  A friend donated pollen from 'Hot Streak' (Ghio 1999) and I crossed it to 'Earl of Essex', and 'Radiant Bliss' was the result.  I'm extremely glad I didn't follow common sense!

'Radiant Bliss' (Wilkerson 2004)

Once I moved to Mitchell Weaver Road, and established a short row of 'Radiant Bliss', I looked for a rebloom partner.  'Summer Radiance' stood tall and proud just a few plants over.  Both plants are tall, so it wouldn't matter which was taller, but 'Summer Radiance' rarely sets pods so I used it as pollen parent.

'Summer Radiance' (Wilkerson 1996)

There were several seedlings from the cross that rebloomed, and although some were red, the best one I named 'Summer Honey.'  In 2011 it managed to bloom from spring through fall freeze.  It was a nice, relatively moderate summer, and I did water every ten days or so when there was no rain.  I received a letter with pictures of it reblooming in Oregon in 2014.  It was gorgeous.

'Summer Honey' (Wilkerson 2013) 

Below is a picture of the stalks that were cut down in the fall freeze of 2011. Five stalks growing from one rhizome.

'Summer Honey' stalks (fall)

'Radiant Bliss' was crossed onto 'Innocent Star,' resulting in five rebloomers. 'All Revved Up' is one of these rebloomers.  It passes rebloom on to many of it children.

'All Revved Up' (Wilkerson 2006)

'Rebound' (Wilkerson 96) was used on 'Innocent Star' and produced 'Echo Location' and four other rebloomers.  Below is a picture, showing the netting beside the beard, that I understand indicates it is a plicata.  'All Revved Up' and 'Echo Location' share 75% of their genes.

'Echo Location' (Wilkerson 2007)

'Echo Location' (netting is proof of plicata genes)

'Echo Location' was crossed onto 'Again and Again.'  There were three rebloomers, but 2130-01Re is the only seedling I kept from this cross.  It's not as pretty as I thought it was in maiden bloom.  It was a solid purple self in maiden bloom, but this is what it looks like now.

'Again and Again' (Innerst 1999)

2130-01Re (Wilkerson seedling)

I've crossed 'Over and Over' onto this seedling.  Many have been planted and some may bloom this spring.  Stay tuned for an update on the seedlings.

Creating New Irises Can Be Frustrating! Don't Give up!!

by Betty Wilkerson

Twenty four registered irises have 'Immortality' in their lineages. Most of these indicate that 'Immortality' is the pod parent.  This is because its anthers are rarely able to release pollen.  My personal experience is that crosses with 'Immortality' as the pod parent are mainly undesirable.  In other words, these often wind up on the compost heaps. It takes a lot of seedlings to get a good one.  

Dr. Zurbrigg, the hybridizer of 'Immortality', was quite helpful to other hybridizers.  He wrote articles in 'The Recorder' and was good about answering questions.  He and I were on a rebloom robin a few years before his death, and he addressed 'Immortality's' pollen problem.  Most people find that the anthers look dried up and useless and most seasons the pollen is useless. 

Dr. Zurbrigg pointed out that some years the anthers make the pollen but simply do not release it. If you wait until the anther is mature, you can put it on something like a paper plate and press the blade of a kitchen knife on the anther.  As you pull it across, a few grains of pollen will release.  During the time I was using 'Imnmortality,' it happened only twice.  It is well worth the effort, since the children produced from these crosses seem superior to the reverse!  

'Immortality' (L. Zurrbrig 1982) 

'Immortality' makes a beautiful companion plant when planted with colorful blooms.  Like most rebloomers, it needs to be moved every couple of years to rebloom well.  The clump above was planted during the summer of 2004 and the picture was taken the following summer.  

'Bridge in Time' (Wilkerson 1995)

During my third year of making rebloom crosses, I was able to strip some 'Immortality' anthers and obtain good pollen.  Both 'Bridge in Time' and 'Returning Chameleon' were introduced from this process. I made over a dozen crosses using 'Immortality' as the pod parent. 'Corn Harvest' and 'Champagne Elegance' as parents each produced several rebloomers, but all found themselves on the compost pile.

'Bridge In Time' (Wilkerson 1995)

During the spring of 2013, I took two of my granddaughters to what turned out to be the last SOKY show. They enjoyed touring the display garden.  They used my digital camera to took many clump shots in the garden.  This is their picture of 'Bridge in Time.'  It is much taller than 'Immortality' and has had 13 buds.

'Returning Chameleon' (Wilkerson 1995) 

Although I considered it to be less attractive than 'Bridge in Time,' 'Returning Chameleon' turned out to be the most dependable rebloomer.  Even if it's left in the same spot for years, it will rebloom well if fertilized and watered..  The ruffling is less obvious when blooming in the heat of summer, but it does rebloom.

'Returning Chameleon' (Wilkerson 1995)

Fall blooms often open in cooler weather and their features, like ruffles, are more distinct.  'Returning Chameleon' has become a favorite through the years.  One Halloween, I was taking pictures of 'Returning Chameleon' when Jack jumped right in!  He's a stinker, but really good contrast for 'RC. 

In closing, 'Immortality' is thirty two years old and most would say it's too old.to use in breeding. In an area where only a few rebloomers perform, it is still one of the most dependable.  My goal is dependable rebloom in zone 6b. Would I use it again?  Yes. Under the right conditions, and if I could get pollen.  

Feel free to post questions.