By Nebraska Extension Horticulture Educator Kathleen Cue
Leaf scorch, also called sunscald, is the bronzing of leaf surfaces and crisping of leaf edges. Even plants that are well-adapted to our climate can be scorched. Plants have amazing resiliency, especially when Mother Nature eases them into changing seasons. But taking into consideration a spring like this one—cold and rainy—with an abrupt change to record heat, then scorched plants are to be expected.
Plants don’t have to be in the sun to suffer from scorch. Hosta, which likes and appreciates a shady location, will be scorched by high temperatures.