Author Topic: Viburnum obovatum 'densa' dormancy requirement?  (Read 11880 times)

Halifax

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Viburnum obovatum 'densa' dormancy requirement?
« on: January 31, 2019, 08:40 PM »
Hi Friends,
I have a Walter's viburnum Viburnum obovatum 'densa' in bonsai culture, having inherited it from an elderly nurseryman last year. He passed away shortly after he gave me the tree, telling me only that it was collected in Florida and is native to Zones 7 to 10. Based on that info, I did not put it into winter cold frame storage and I have been keeping it indoors with my tropicals. It seems to be doing fine, but I am concerned that it is being deprived of winter dormancy and that may ultimately hurt it. Help?
Thanks!
Harry


 

Owen Reich

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Re: Viburnum obovatum 'densa' dormancy requirement?
« Reply #1 on: November 23, 2021, 11:09 AM »
Interested to see what you went with for overwinter care.  If I had in CT, I’d kee around 38 Fahrenheit for whole winter in darkness, checking it for drying out about once or twice a week.  In Nashville, I can bring out of cold storage and really water something before putting it back in cold storage.  In your area, I would not do that. 

Viburnums or anything collected in Florida (depending on part of Florida) should be treated based on where they came from.  Zone 7-10 is middle to south Florida.  Around the Orlando - Ocala sort of latitudes, there’s a hard and fast temperate plant line.  Below it, certain plants are a no-go completely, while others can be literally put in a refrigerator for a few months and they are fine.