Q. If I spray off an area of grass with your Biodegradable Weedkiler containing pelargonic acid, how soon can I plant trees and shrubs and sow wild flower seeds? From Geoffrey Jones.
A. Thanks for the message and you need to wait 1 day i.e. 24 hours before you can cultivate the area. Kind regards Jon @ Green Gardener. CLICK HERE for Biodegradable Weedkiller.