Putting Rhubarb in Compost Pile
If you put rhubarb leaves in a compost pile and they break down will they still be poisonous if you put them in a vegetable garden?
The good news is that the toxic compound oxalic acid contained in the leaves rapidly decomposes and is not absorbed by the roots of other plants. So, adding them to the compost pile poses no threat to your vegetable garden.
Related
Upcoming Live Events
& Webinars
Jan. 10, 2026
Greater Des Moines
Botanical Garden
Des Moines, IA
Register here
Jan. 28, 2026
FREE WEBINAR:
Past, Present & Future of Mitchell Park and its Conservatory, the Domes
Register here
Feb. 13 - 15, 2026
PBS Wisconsin
Garden & Green Living EXPO
Madison, WI
More information
Feb. 18, 2026
FREE WEBINAR:
Plants that Go the Distance
Register here
March 26, 2026
FREE WEBINAR:
Getting Started Growing Vegetable and Flower Gardens
Register here
WATCH ON-DEMAND WEBINARS
Learn More


