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Old 03-20-2016, 11:30 AM   #12 (permalink)
Pancrazio
 
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Default Re: Dwarf Namwah cold hardiness

Quote:
Originally Posted by Grannycore View Post
I completely agree. I left some out this winter as sort of an experiment - I wrapped and bundled three six-foot trees to see what would happen. Our lowest low was 17, but we got extended periods where it was in the twenties, and the only ones with any p-stem survival was dwarf Orinoco and California gold. The other ones were frozen mush to the ground. So our lows weren't substantially different, but I had a significantly longer amount of time below freezing, and it happened repeatedly over 2.5 months. I definitely (and unfortunately) would not have these results.
I see what you mean. Acute and extended damage are definitively two different things. I think that the key point is to have at least some daily temperature above 32F. I think that ice started forming inside the plant but wasn't capable to do too much damage because during the day it unfreeze.
Also, i'm interested to see the other thing you point out: how well the plant behaves when there are several cold spell over 2-3 months.
This year we got just this cold spell, and it is pretty unusual for me (we get usually several during winter); but i'm happy because this way if in the next years i get some damage from several cold spell in row, i can tell for sure that it isn't the single cold spell doing most damage, but the sequence of cold events.

Quote:
Originally Posted by asacomm View Post
Hello Pancrazio,

An extremely exciting report!! Congratulation too!
I am very much interested in how the plant developes to grow with what
kinds of handicaps or damages.
So I do expect your further report from time to time.

Thanks in advance.
Hey asacomm, I'll do it for sure, I always have read your post on the way you used to overwinter your plants with great interest, it's time to reciprocate.

Quote:
Originally Posted by crazy banana View Post
I have mentioned it before, but one other important point is to start out with the best, healthiest plants possible before going into the cooler winter month with less daylight.
I do agree with that, in fact at the end of July i stop any activity on the plant that could result in a stress, so they have 4 months to completely recover. Worst thing is de-suckering: stopping it during the 4 months of most active growth can result in a seriously overcrowded mat, and to be honest, i still don't have a clear idea on how i should deal with suckers for that plant. I just know that i'm hoping for a crowded mat.

Quote:
Originally Posted by PR-Giants View Post
Great job, Pancrazio

Thanks
Thank you Keith!
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