Views: 2544, Replies: 5 » Jump to the end
Sep 26, 2012 3:39 PM CST
|I've started to lift some of the A. konjac.They aren't going dormant yet but I'll lift several a few weeks early to play it safe. Here are a few photos of an interesting one.|
New growth point directly under petiole caused it to split.
Early season rot? Heeled over and firm to the touch.
Sep 26, 2012 6:59 PM CST
I think the rot is probably last years tuber. Someone will correct me if I'm wrong, but I think the plant consumes the old tuber and a new one develops underneath.
Konjac can take frost so i always let mine die down naturally. I even had a few offsets that were left in the ground last fall come up this spring (in south central WI) --we had a VERY mild winter though.
Sep 26, 2012 7:22 PM CST
Thanks for the input. I've read several different accounts of how big the tuber needs to be before an inflorescence might form. My largest tuber so far is ~4.5" wide. What has your experience been?
Next year I'll plant some of the larger tubers deeper and see if they'll overwinter outdoors. I'm thinking 8 to 10" deep. Last year was very mild here too with only one sub-zero night and one other down to zero. This without snow cover. I actually had three Z. albomaculata I missed survive!
Sep 26, 2012 8:49 PM CST
I would guess somewhere in the 6" range would be blooming size -- probably another year.
If you leave them out I think the key would be cold but dry --cold and wet would rot for sure.
Sep 26, 2012 9:10 PM CST
|Thanks Mike. Last fall we were cold and wet. I lifted after 1st frost and several of the tubers had some rot. Maybe in a raised bed with amendments to enhance drainage they'll consistently overwinter.|
May 8, 2013 7:24 PM CST
|I took one of my A. konjac tubers, looking lonely sitting on a shelf and placed it in with the remains of some potting mix in my mixing tub. The mix was pretty dry and I covered the tuber. After 7-10 days I took a look at the tuber today.|
Lots of new roots