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Frost protection? No, seriously, folks...
Here I am in zone 8b, but with most of my roses lacking
canopy cover (it gets in the way of the Florida sun), a light frost can be somewhat intensified by heat radiating off into (ultimately) outer space on cold, clear nights. The first light frosts have already hit, turning the banana trees to dark mush, blighting the cannas and the lemongrass. The roses are still putting out new growth, however, and seem not to have been affected, but sooner or later there'll be a 20-F dawn. Should I invest in frost cloth, or simply let the new growth be frozen the way it was last year? That seems not to have crippled or killed any rosebushes, but this time I have more tiny plants that were cuttings only months ago, with half their volume or more still tender. What would you do? (18 to 20F is about as cold as it gets here in a typical winter, with temperatures typically well above freezing before the following noon, and if I can keep these little plants (still mostly in pots) from losing their new growth, I might be glad of it later. The 8 degrees F or so of protection the cloth can provide might suffice to do just that.) Mark., from icy, icy North Florida |
#2
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Frost protection? No, seriously, folks...
Mark. Gooley wrote:
Here I am in zone 8b, but with most of my roses lacking canopy cover (it gets in the way of the Florida sun), a light frost can be somewhat intensified by heat radiating off into (ultimately) outer space on cold, clear nights. NOT an issue. You do not need to protect your established roses from cold in your zone, and probably not your babies, either. Like you, we have some cold snaps cold enough to damage--in five years I lost a single baby ownroort--however, also like you, any significant organic winter protection (like mulch) will increase the incidence of rot and fungus. (18 to 20F is about as cold as it gets here in a typical winter, with temperatures typically well above freezing before the following noon, and if I can keep these little plants (still mostly in pots) from losing their new growth, I might be glad of it later. The 8 degrees F or so of protection the cloth can provide might suffice to do just that.) If you want to cover them, do it--but a better idea would be to simply move them close to your house. |
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