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Dovita from Lutherville Maryland writes

Will Grass Out Max (Clethodim Herbicide) kill ferns?


Grass Out Max (Clethodim Herbicide) is labeled to be used on Asparagus fern and many other ornamentals, ornamental trees, shrubs and broadleaf plants. We would suggest doing a small spot test to ensure a broadcast application would not harm your ferns. 

View the full list of tolerant plants on the product label HERE

Answer last updated on: 08/07/2021

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