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bkay2000

Deja Vous all over again?

3 years ago

In 2015, we had a warm December and January. Many of my hosta started pipping. Then in February, we had a week of rainy and freezing temperatures. I put all the hosta in my garage which usually doesn't freeze. I later learned that the cold, wet temperatures are the perfect breeding ground for Rhizoctonia root rot. By the end of 2016, I had lost 90% of my hosta. (There is no really effective treatment for Rhizoctonia.)

it's been dry and warm, except for one 2 day freeze at Christmas. I went out today and Liberty is pipping (new last year). Last week, it looked like Squash Casserole was also pipping, but you can usually see the purple pips long before they start growing.

Clearly, winter is not finished with us. I may be "borrowing trouble", as my grandmother would say, but I don't have a plan for a late freeze. I will not do the garage thing again, obviously. (A bunch of cold, wet hosta in an enclosed space is a recipe for trouble.)

I have questions: What happens if you just let them freeze and the pips are up? Would insulating the pips help anything (maybe a foam disk covering the top of the pot)?

Does anyone have suggestions?

bkay

Comments (10)

  • 3 years ago

    up here. in the land of good and plenty.. oh crikey...now i have a craving .. lol ..


    after dormancy.. we tip the pots on their sides.. so water doesnt accumulate in them ..


    we keep them out of all winter sun.. dont want that black pot heating up on sunny days..


    and we leave them on there sides ..... until growth starts.. or within an inch or 2 of growth...


    the pips were there last fall so im not sure what you mean when you say pipping.. are they actively growing or not??


    ken

  • 3 years ago

    I often deal with late freezes on big pips. The fragrant lineage usually recover from frozen pips by sending up new, smaller pips. I think Sagae has done the same. However, many hosta really seem to suffer and sometimes die after alternating freezes and warm spells. It seems to help to water well before freezes and apply a dry, light mulch. For me, that’s a nice pile of oak leaves. For plants that are already heaving, I toss a couple handfuls of soil on top of the crown before applying the leaves.

    bkay2000 thanked undertheoaksgardener7b
  • 3 years ago

    So, move them to the shade?

    bkay

  • 3 years ago
    last modified: 3 years ago

    The coup.e times I over wintered a hosta, I put them on the north side of my house, in shade, tipped them on their sides and threw some leaves on on top. I was surprised that they pipped in spring at the normal time. Of course it was an experiment for me, so they weren’t my prized hostas. ☺️

    Sounds like moving to shade would be the answer, if you are able to.


    debra

    bkay2000 thanked djacob Z6a SE WI
  • 3 years ago

    Are all of your Hostas in containers? How did you determine that it was Rhizoctonia that killed previous Hostas? Where are you, location or zone?

    bkay2000 thanked Tiffany, purpleinopp Z8b Opp, AL
  • 3 years ago
    last modified: 3 years ago

    Thanks, everyone. They are, indeed, pipping. Boy, the weather was crazy last year. Cool spring last year, then hot in May and it never let up until October. It stayed dry all spring and summer, then we had floods in October. We usually have our first killing frost about November 15. It was Christmas. Now, we are 70/75 degree days and we're dry as a bone.

    I usually don't water anything in the winter, but I had to do it today. I moved all the fragrants, Squash Casserole and Liberty to the shade. My house faces north, so I don't have a good place to in the front to hide them. Thanks, Debra.

    Tiffany, I'm in DFW. Depending on who you ask, we are zone 7 or 8. I think 8 is more accurate to our heat, but ever once in a while, we get those really killer freezes. Then, they decide we are zone 7. Yes, I grow entirely in pots. How I knew it was rhizoctonia was that I sent a sample to Texas A&M plant disease and diagnostics. They suggested several fungicides. They didn't work. Finally I called the county agent and he said that I would likely lose most all of them. (He also told me to throw out the ones that were infected and don't try to save them. I didn't listen.) He said a few would not be susceptible. I have four survivors from the 100 or so potted hosta I had. They are So Sweet, Honey Bells, Blue Cadet and Blue Angel. I've added some more and have about 15 now, four of which came from a screwed up order last year and are not likely to flourish as they weren't the plants I ordered and may not do well in pots.

    bk

  • 3 years ago

    I think leaving them in 1 spot all of the time would be the best thing. Not sure why it would be necessary to move pots into a garage if you are not in an arctic zone.


    Your dedication is to be admired. : ) We all have this plant or that plant that we bend over backwards for.

  • 3 years ago

    As I said previously, we had a warm January and most hosta had started to come up when we had a freeze in February that lasted days. I wanted to protect them from freezing. I moved them this week because they live under a Pecan tree, which is deciduous. I moved them to shade in the hope that it would slow down their growth.

    bkay

  • 3 years ago

    2/16/23. Coconut Custard and Teaspoon

    bkay2000 thanked undertheoaksgardener7b