Plant Identification
Q.

Plant problem

Zone 87031 | Anonymous added on September 9, 2017 | Answered

Can you tell me what is wrong with this plant?

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Certified GKH Gardening Expert
Answered on September 9, 2017

This looks like a form of leaf scorch. Leaf scorch can have several causes: direct heat damage, excessive fertilizer application or overwatering (which damages the roots and leads to symptoms on the leaf as well), or a bacterial infection in some shrubs. See these articles for details:

https://www.gardeningknowhow.com/plant-problems/environmental/what-causes-brown-edges-on-leaves-of-plant.htm
http://extension.colostate.edu/topic-areas/yard-garden/leaf-scorch-2-911/
http://www.fruit.cornell.edu/berrytool/blueberry/leaves/BBleafbrowning.htm

This article is about bacterial leaf scorch in trees, but shrubs can be affected too by other leaf scorch bacteria:
https://www.gardeningknowhow.com/ornamental/trees/tgen/bacterial-leaf-scorch-disease.htm

The middle picture also shows young leaves which have turned yellow while the leaf veins remain green, which is a sign of a possible nutrient deficiency of iron or manganese. See this article:

https://www.gardeningknowhow.com/plant-problems/environmental/leaf-chlorosis-and-iron.htm

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