Ask a Question forum: Compost ??

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Aceracer123
May 14, 2017 2:09 PM CST
Hi, what would happen if I've potted an acer in normal compost rather than Ericaceous??
Name: Sue
Ontario, Canada (Zone 4a)
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sooby
May 14, 2017 2:25 PM CST
Welcome!

Are you in the UK where "compost" typically refers to what is called potting mix in North America? It's probably unlikely that your potting medium has a high enough pH to be a problem but if it did you would see interveinal chlorosis, first on the youngest leaves, where the leaves go pale between the veins but the veins remain green. If your potting mix does have a pH higher than about 7 then you might have been better with ericaceous mix. It also depends on the maple species because some will tolerate a higher pH better than others. I'm guessing since it is in a pot it is a Japanese maple?
Name: greene
Savannah, GA (Sunset 28) (Zone 8b)
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greene
May 14, 2017 2:26 PM CST
I first had to look up the word 'Ericaceous' Okay, now I understand it is compost which is more acidic than normal.
https://www.gardeningknowhow.c...

Acer can handle a PH range of 5.5 to 7.3. They can survive in a PH as low as 3.7 but they would be less happy.

What is the PH of the 'normal' compost you'd like to use. If it falls between 5.5 and 7.3 you should be okay.
Sunset Zone 28, AHS Heat Zone 9, USDA zone 8b~"Leaf of Faith"

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