When to Apply Bloom Booster Fertilizer

Most fertilizers contain a blend of nutrients in specific ratios. The three numbers on a package of fertilizer describes the amount of nitrogen (N), phosphorus (P) and potassium (K). High numbers reflect high concentrations of the nutrient. Each nutrient causes a slightly different response in the health and growth of the treated plants. Phosphorus is the nutrient that has the greatest affect on the formation of blossoms.

Bloom Booster fertilizer has a 15-30-15 nutrient rating, meaning its phosphorus equals twice the amount of its nitrogen and potassium. The product comes in both dry and liquid formulations.

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The instructions on the Bloom Booster label recommend feeding the fertilizer to flowering plants seven to 14 days prior to the bud-set and every seven to 14 days thereafter. Regular applications throughout the growing season can help provide a continual source of nutrients through the roots.

Flowering plants blossom at different times, making it important to familiarize yourself with the flowering habits of the plants you grow. For instance, summer-blooming annuals often require fertilization about six to eight weeks after planting, while many spring-blooming perennials require fertilization early in the springtime. Although many flowering plants benefit from regular fertilization, some soils provide adequate levels of nutrients or require blended fertilizers with different nutrient combinations. A soil test provides a nutritional analysis of the existing state of the soil and offers recommendations on treating the soil to replenish deficiencies. The best time to perform a soil test is prior to planting new flowers. Applying a fertilizer to perennials in the fall can encourage late growth that may subject the plant to frost damage.