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Dec 18, 2016 12:48 PM CST
|Part of gardening fun is growing plants that would not grow in your region without help. Still that does not mean you can grow anything anywhere but sometimes you can be surprised. I was at least very surprised to find Opuntia growing outside in Copenhagen botanical garden, unprotected on the sunny side of a sandy hill. Here were I live (the Netherlands) they would not last a single winter. Not so much for the frost but they drown. The continuous wet winter weather around freezing point can kill many plants including many alpine plants let alone cactaceae. So people who do grow Opuntia here outside have a roof over them from September onward. But no such construction in Danmark. The slightly better climate conditions compensate for the even northerner location. O.k., they may not grow out there to price winning show pieces but they do survive and even flower.
(my excuses for some pictures, I had sometimes to photograph the plants growing below me, walking above them, which is not easy for good photographs)
Opuntia humifusa: this one was labelled O. h. var. robustior, but that name seems not to exist
Another plant with a non-existing name:
Opuntia macrorhyza var. riograndensis:
Perhaps an O. macrorhyza or O. pottsii??
This one was labelled Opuntia cymochila, which is now O. macrorhyza:
Opuntia phaeacantha var. camanchica
And finally Opuntia pottsii:
There were some Cyclopuntia too,
Dec 18, 2016 1:42 PM CST
Very cool, you'd be surprised though at the range that some of these Opuntias grow in - some occur in nature in Alberta - gets very cold, but usually very dry.
And others grow well east of the Rocky Mountains.
Most of the Opuntia you show pictures of occur in places where it can get really cold and also wet (but as you say probably only rarely wet as long as things stay waterlogged in the Netherlands), but are all characterized by extremely well draining soil (or just very little soil that can retain water for a long time).
Mar 31, 2017 1:21 PM CST
|That's so cool! I've realized Opuntias can survive outside where I am too. At least the 2 that I've found so far.
O. monacantha, variegated. Purchased @ a store. As far as plants go, it's so purple. I just love it!
Need a newer pic of the other one - will add soon.
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