Baking Soda is made up entirely of sodium bicarbonate which is a highly alkaline substance making it great for the following uses in the garden:
For flowers that thrive in alkaline soil like geraniums, begonias and hydrangeas, make a solution of 1 tablespoon of Baking Soda to two quarts of water and water your flowering plants to encourage blooms.
For Fresh Flowers
For sweet tasting tomatoes, sprinkle a small amount of Baking Soda around the base of your tomato plants. It will be absorbed into the soil and will lower the soil's acidity. It will also help your tomatoes fight against black spot fungus.
For Other Veggies and Fruits
Regular applications of a 1% solution of Baking Soda to water can minimize diseases such as powdery mildew and other foliar diseases.
For Powdery Mildew
Cleaning Pots, Birdbaths, etc.
In the Compost Pile
Discouraging Other Pests
As An Organic Pesticide
As A Weed Killer
A Word of Warning!
Avoid spraying Baking Soda directly on flower stalks and buds. Too strong of a solution of Baking Soda can burn the leaves of plants.