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Old 2nd January 2008, 06:43 PM   #4 (permalink)
mdvaden
Over mature heritage tree
 
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Join Date: Feb 2007
Location: Oregon
Posts: 564
Default Re: Protecting Trees & Shrubs against Winter Damage

One paragraph near the beginning was...

Quote:
A fertilization regimen in the fall can help prepare trees for spring. Many arborists use a slow-release fertilizer after plants have gone dormant following a good hard freeze but before the ground is frozen. Fall fertilization with an effective slow-release fertilizer is great preventative maintenance for nutrient-deficient, high-value trees. Avoid using fertilizer with highly available nitrogen after July because it can force too much new growth at the wrong time of year.
If I recall correctly, nitrogen tends to produce thinner cell walls in plants, probably less desireable in winter.

One thing I'm curious about, is if potassium can aid trees, in a similar fashion to how it helps turf through a cold winter.

(Not Australian winter - Ekka)
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