Asked on Jun 29, 2019
Why do my lantana plant leaves curl and turn black?
by
Gayle
Why does my Lantana plant turn black and curl on some of the leaves? This only happens to one of three plants I have.
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Here's what I found:
A calcium deficiency can cause the tips of lantana leaves to turn brown, then black, as well as leaf curling or distortion. Phosphorus-deficient plants may develop dead patches along leaf margins and older leaves on phosphorus-deficient plants develop a purple tinge.
Are they together in same area? In full sun? getting same amount of water? same drainage? Have you put compost or fertilizers on them? test soil before you start adding or changing it too much phosphorous can actually produce the symptoms you are stating too much blocks the plants ability to absorb any nitrogen; I think the one plant is getting too much water causing fungal disease where are the curled up leaves happening outer plant top edges or towards the bottom of plant? are they in containers or inground?
HI Gayle,
There are several reasons why that could happen. This article mentions the copper but also several other things that could be causing the problem. Another idea is to take a pic and a few leaves into your local Cooperative Extension service. Look for it with that name and your county. They are very helpful for local issues. Wishing you the best.
https://homeguides.sfgate.com/edges-turning-brown-leaves-lantana-33210.html