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Hyacinth Plant

Q.Lime tree

Zone Irvine CA | khdelong7 added on December 20, 2017 | Answered

Upright curling of leaves. Leaves drying and falling off.

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Certified GKH Gardening Expert
Answered on December 20, 2017

This can have a few different causes. When the soil is too dry, if it gets too cold in the area, or if it is suffering from a bacterial/fungal infection.

If the area receives enough water, then you can rule out this possibility. If there has been a recent cold snap then this is a very likely culprit. If it hasn't been chilly, then you can peg this as an infection of some sort. Iron sulfate will, both, help keep the pH low enough to its liking, and kill off any infection in the soil.

Here is an article with more information that will help: https://www.gardeningknowhow.com/edible/fruits/citrus/curling-citrus-leaves.htm

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