When used sparingly, baking soda can promote more consistent flowering and noticeably more vigorous plants. A better-balanced soil facilitates the absorption of naturally occurring nutrients, which can result in more buds and longer-lasting blooms. As for foliage, some gardeners notice that the leaves are cleaner and more resilient to everyday wear and tear. We’re talking about support here, not a full-fledged fertilizer: baking soda primarily provides an indirect boost by creating better overall growing conditions.