Brown leaves in summer probably signal scorched plants
Wednesday, August 8, 2018
Posted by: Dana Walker
Sometimes, in the height of summer, the tips of leaves on trees and plants turn brown and crispy. This
condition is rarely caused by an insect or disease, according to Sharon Yiesla, plant knowledge specialist at The Morton Arboretum in Lisle.
“The plants are just scorched,” she said.
Scorch occurs when plants can’t move water up from their roots fast enough to replenish the water they lose through the tiny holes in their leaves. Without enough water, the leaves start to dry out.