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Avatar for spdjak
Apr 30, 2020 6:00 PM CST
Thread OP
Kirkland, WA
Fellow gardeners, the picture you see is my "Mexicola" avocado plant I bought from local nursery in October last year. Throughout the winter I kept it inside the greenhouse. It didn't grow any new leaves but surviving through winter. I transferred it to the ground in my backyard in late February after the last frost. Recently I noticed the brown spots on the leaves. While new leaves haven't even sprouted out yet, getting me worried. I was told this is the hardiest variety of all avocado (and self pollinating), supposed to withstand temperature in the 20s. I'm in Washington state, zone 8A. What do you folks I should do, any hope? I water and fertilize regularly with compost. Thinking about putting epsom salt mixture maybe?
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Apr 30, 2020 6:17 PM CST
Name: Carol
Santa Ana, ca
Sunset zone 22, USDA zone 10 A.
Bookworm Charter ATP Member Region: California Hummingbirder Orchids Plant Identifier
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Having spent my early youth in S/E WA. I miss growing cherries and apples, and there are some that are supposed to do ok here...but they are never going to thrive, or produce the fruit one would expect from them. Did you do you're research on them? All avocados need fast draining soil, full sun, and warm ( not freezing) temperatures. They bloom along with citrus in late (depending on variety) winter, and are evergreen. Can you provide that?
Apr 30, 2020 7:00 PM CST
Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
Garden Sages Plant Identifier
Mexicola is what I was growing in CA zone 8b. But, Zone 8b not 8a and for the first few years of its life, I wrapped the trunk in Christmas tree lights (that was when they still have off heat). Yes, it can survive temps into the 20's but, those are the exceptional days, not the matter of course days. As Carol pointed out, in summer, its needs heat, sun and fast draining soil.

Stop fertilizing. A tree attempting to acclimate and grow roots does not need the extra burden trying to live up to the expectation of fertilizer. Avocados need fertilizer only 3 times a year after they are established so fertilize again starting in the spring of 2021 when you see new growth.
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost

President: Orchid Society of Northern Nevada
Avatar for spdjak
May 2, 2020 12:30 PM CST
Thread OP
Kirkland, WA
Thank you fellow gardeners. I'm glad I asked.
Carol, you're right, I can't provide the environment it needs here in my zone.
Daisy, I won't give anymore fertilizer for now, thanks for the input.
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