Started this plant from seeds this spring. It's doing well and blooming in a
container on our patio where it gets sunshine in abundance. Lately the plant
has developed many yellow leafs, at the bottom as well as elsewhere in its
foliage. This does not seem to have hindered its growth or flower buds, and
looks otherwise "healthy"... What could be the cause of the yellowing leafs
? It has been very hot and humid here in S.Ontario for many weeks. Excessive
watering ? Needs fertilizing ? Too high heat or too much sun ? Thanks !
Mine too. Seems to just be leaves getting old. Reach inside and pinch them
off, leaving no stem to get brown & ugly. Give the plants some liquid
fertilizer, like fish emulsion, diluted MORE than recommended.
Yellow leaves at the bottom of a plant usually means that the plan
needs nitrogen. It starts to spread up the plant if its nitrogen need
are not met. I suspect some fertiliser which includes micronutrient
(not just the big 3, Nitrogen phosphorus and Potassium) will be all i
needs. Do not add fertiliser if the soil is dry and the temperature
are above 30 C. It will burn the plant
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