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Gardening Know How Questions & Answers - https://questions.gardeningknowhow.comA young fatsia that’s in a large pot of multipurpose compost. Only some of the lower leaves are getting a distinct pale yellowing between the veins. Sits in full sun at the mo. The growing tip leaf is blackened but I suspect that’s just frost (in Scotland). Thinking the yellowing might be magnesium deficiency (or an indirect deficiency caused by overly rich compost locking out magnesium to the plant)? Don’t think it’s overwatered, all other growth is healthy and not soft, no other chlorosis on leaves. Anyone got any thoughts? Also advice to remedy this?
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2 Comments To "Fatsia Japonica. Yellowing Between Veins"
#1 Comment By BushDoctor On 11/18/2019 @ 9:57 am
I would tend to agree with a Magnesium deficiency. This can happen when the soil is too acidic, or with plants that tend to consume it quickly. I suspect the former.
Try testing the pH of your soil, and add DOLOMITIC LIME. Just a modest, single handful will suffice. It will provide, both, Magnesium and Calcium, which get used by the plant in tandem. Just try not to let the pH spike up over 7, which will rarely happen.
This article will offer more information on the care of the plant: https://www.gardeningknowhow.com/houseplants/aralia-plants/japanese-aralia-care.htm [1]
#2 Comment By GS On 11/18/2019 @ 10:14 am
Thanks for that. Will follow your advice.