Baking Soda: The Organic Gardener's Secret Weapon

Common baking soda—cheap, safe, ubiquitous—solves multiple garden problems organically. Replace harsh chemicals with this kitchen staple.

Universal Fungicide Spray

Recipe: 1 tsp baking soda + 2.5 tsp lightweight horticultural oil (or summer oil) per gallon water. Oil helps adhesion. Organic fish-based oils available.

Best for: Black spot and powdery mildew on roses. Remove infected leaves first (trash, not compost). Spray weekly.

Cornell-tested: Baking soda + water alone also effective. Same ratio; skip oil if preferred.

Gentle Tool & Supply Cleaner

Clean pots, stakes, trays, and tools with baking soda + soap before reuse—especially for seedlings. Rinse well. Wash drainage materials (pot shards, gravel) in baking soda solution. Some gardeners even wash hands with it to avoid transferring soap residues to plants.

Simple, non-toxic, and surprisingly effective. Baking soda deserves a spot in every garden shed.