Quote:
Originally Posted by sandy0225
I'm testing one this year. I planted it a foot deeper below grade. I'm also testing a sikkimensis, and a bordelon all planted that way. The basjoos I planted that way one is three summers old and the rest (13)are two summers old. They do good planted that way. No mulch.
|
I've seen where fruiting bananas were planted in a trench and then later backfilled. This was to keep the corm deep and had nothing to do with cold survival, but it shows that it isn't detrimental and should also help with cold hardiness. I've also thought about doing this with my Colocasia 'Burgundy Stem' which tends to get a large above ground corm as it grows. The tiny runners (if under mulch) will re-sprout in the spring but the corms of the larger plants will rot. I've heard (and experienced with smaller plants) that if you dig them up in mid-summer and re-plant deeper they survive the winter. I've lost all my old, big 'Burgundy Stem' but if they seem to get large this year I'll try to dig and re-plant them deeper. It would probably be advisable to make sure that when they are planted below grade that they are not kept in a wet, boggy situation and that even while deeper that they are in high enough ground to stay well drained in winter.