Why some yellow leaves come on my roses
by
Linda
+3
have rose bushes some get a few yellow leaves
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lots of reasons; Black Spot, not enough sun, too much water, ... https://ask.extension.org can help -- a lot will depend on your location and the variety of rose
As with a lot of other plants, sometimes the leaves will age out and die.
Probably need iron.
Rose bush leaves exhibit a pale green or yellow color when they suffer from chlorophyll insufficiency. The insufficiency can be due to high pH levels in the soil, low iron or lack of oxygen due to overwatering or poorly drained soil.