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Florida Betony: Invasive Weed with an Edible Root

Florida betony (rattlesnake weed) spreads aggressively via white, segmented tubers that taste like water chestnuts. If you don't want to eat them, control is tough: either remove all desirable plants and spot-spray glyphosate on the betony, or persistently treat each shoot with a shielded sprayer for three-plus years. Complete eradication requires diligence.

About Gardening: Weed Control in Shady Floratam St. Augustine: Mowing High and Atrazine Limits; Easy Edible Plants for Florida Gardens: Citrus, Herbs, Spices, and More; Wild Onions vs. Wild Garlic: Edible but Check for Herbicides; Edible Flowers for Wedding Cakes: Resources; Managing Dichondra in Shady St. Augustine: Consider Alternatives; Is Dogfennel Edible? Better to Stick with Culinary Fennel; Herbicide Residue After Ivy Removal: Test with Radishes Before Planting Vegetables; Florida Betony Control: The Rattlesnake Weed Challenge; Mulberry Weed Control: Pre-Emergent and Post-Emergent Strategies; Volunteer Squash: Safe to Eat, Just a Hybrid Surprise

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