Crinums in Cooler Zones

Judy Glattstein via pbs pbs@lists.pacificbulbsociety.net
Sun, 05 Jul 2020 10:33:03 PDT
I have pinkĀ  and white Crinum xpowellii that are grown in pots, wintered 
over in a cool greenhouse. Also xAmarcrinum but let's ignore them at the 
moment.

One plastic pot is 13 inches in diameter. In this pot there is one very 
large bulb whose pseudostem and whirligig of leaves is over 3 feet tall. 
There is another not quite so large and several more smaller bulbs, all 
in this same pot. I suspect the soil mass is solid with roots.

I do not want to move everything up to a larger pot. Space in the 
greenhouse is already an issue, plus I do not want to contemplate 
heaving and hauling an even larger pot outdoors in spring / back inside 
in fall.

Nor do I want to divide - I have no need of ever increasing quantities 
of pots of identical crinum. Even the smaller ones are larger than the 
stipulated BX size for donation. I suppose I could replant only the 
larger bulb. Or both of the two larger ones and discard all the smaller 
ones. Attached is a picture of the pink crinum from August 2019. I'm 
sure it is crinum and not the xAmarcrinum because flowers of the latter 
are held somewhat above horizontal while these droop somewhat below 
horizontal.

I have Musa basjoo right next to the house by concrete basement wall. 
They do winter over but it involves cutting them back quite hard, 
covering the stubs with tubs filled with oak leaves, piling more leaves 
on top, and putting plywood roof covers over them. To benefit from any 
warmth seeping though the basement wall and / or the plywood covers the 
crinum would be heavily shaded by the bananas. Image of bananas from 
June 26 2020 attached. The bananas will get significantly larger by 
summer's end.

So if I bite the bullet and plant this large pot of crinum outside - 
when is this accomplished: spring, right now, in the fall? What happens 
to the above ground pseudostem in winter? Plant as one colony or divide 
and plant individually? Not really eager to plant individually . . . 
Anyone want any pink crinum in exchange for postage and a donation to PBS?

Judy in New Jersey where today's midday temperature is again above 90 
degrees Fahrenheit, and it is humid




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