Return to the Canna Forum | Post a Follow-Up

 o
Zone-pushing--no winter protection in Zone 6?

Posted by dublinbay z6 KS (My Page) on
Sun, Jun 12, 11 at 11:43

I know the "correct" answer to my following question, but I'm not looking for the "correct" answer. I'd like to hear from those of you who have tried the "incorrect" method.

How successful have those of you in Zone 6 (midwest specifically) been at leaving your canna in the ground all winter and seeing them bloom/multiply the next growing season?

Some years ago a local woman told me she had planted canna on the south side of her house 10-15 years earlier, had never lifted them for the winter, and they not only had survived every year, but had thrived to the extent that she was always giving away the extra canna every year.

I didn't have the south side of my house available, so I planted a few canna next to the west side of the garage. For about 5 years I had some canna blooming there even though I never lifted them in the winter. (Leaves from the neighboring oak trees would fall on that bed.) I wouldn't say my canna thrived there, but there were always at least several canna that would bloom.

Then I wanted to redesign the west side of the garage, which meant I was left holding 5-6 rhizomes (is that what they are called?). Despairing of finding a place to put them, I dumped them in the ground by the wire fence back by the alley. My neighbor's oak tree always sheds a ton of leaves back there--a real pain to rake up every spring, but evidently enough protection for the canna because they grew back for several years with no other winter protection or care. However, last year I tried a lawn service (I'd always done my own lawn care before) and had them blow away about half the leaves back there along the fence so that there wouldn't be such a big raking job this spring. That worked out fine, but none of the canna grew back at all.

What do you think--was it just luck that the canna kept coming back by my fence for several years, or was that extra pile of oak leaves just enough winter protection to keep them alive for those years?

Have you managed to keep canna alive and producing without digging them up and storing them each winter? I'd be curious about what kind of luck you had if you did.

Kate


Follow-Up Postings:

 o
RE: Zone-pushing--no winter protection in Zone 6?

Some cultivars do come back, but I wouldn't count on it.


 o
RE: Zone-pushing--no winter protection in Zone 6?

I have learned the hard way that it is not worth taking the chance. I lost all of my cannas and had to start over due to harsh winters. Heavy mulching was not enough. I had 2 years where I was OK, then I lost all.


 o
RE: Zone-pushing--no winter protection in Zone 6?

I kept Cannas alive in a cold part of England by the following method. After the first frost dump a ton of horse manure on top of them. The heat from the fermenting compost keeps them alive even through a heavy frost. Doesn't look so good, however. My wife forbade it a second year! - Ian.


 o
RE: Zone-pushing--no winter protection in Zone 6?

tried it a few times and even mulched them and they always turn to mush. I have better luck with basjoo bananas.


 o
RE: Zone-pushing--no winter protection in Zone 6?

I have potted cannas that weren't in enough sun to bloom (except one) then Irene hit and shredded them. I know I won't be getting any flowers this year. Can't I just dig them out of the pots now and store them? Please help-never did this before.


 o
RE: Zone-pushing--no winter protection in Zone 6?

I know someone in zone 6 that had a canna planted literally right next to the house foundation that comes back every year. It does grow a little strange since the sprout has to grow away from the foundation to get taller....but nevertheless....blooms every year.


 o
RE: Zone-pushing--no winter protection in Zone 6?

I know of three places that I have seen them survive in my area and that was because they were close to the dryer vent each place. I tried planted them by the foundation but didn't work for me but it did for my calla lilies.


 o
RE: Zone-pushing--no winter protection in Zone 6?

A few years I've left some canna tubers in the ground over the winter in zone 6 (typically varieties I wasn't very interested in saving). I think I got a good number to resprout and grow just one time (the bed was in an open location).

It doesn't surprise me that people have success in a southern exposure up against the house or similar protected location in zone 6 (I've done well with Amorphophallus konjac and Nandina in such a spot). It'd also help to have exceptional drainage, and a covering of mulch would be a good idea too.

I wouldn't depend on even this setting in the case of rare/expensive varieties though.


 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!


Return to the Canna Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.


Learn more about in-text links on this page here