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How to Fertilize Flower Beds

By Ann White ; Updated September 21, 2017

Flower bed plants are heavy feeders during their flowering season. Whether you have perennials or annuals, they require a generous amount of nutrients to sustain their appearance. For best results, fertilize flower beds initially during early spring as the buds are starting to form and again midway through summer for an energy boost and a second round of blooms.


Mix the water and fertilizer as directed on the manufacturer's packaging.

Pour the fertilizer on the plant's foliage at sunset to avoid foliage burn.

Water in the fertilizer's drippings for optimal absorption.


Heat the distilled water in a microwave safe measuring cup for 2 minutes.

Add the powdered fish and powdered seaweed and stir until any clumps are dissolved. Powdered fish provides the flowers plants with its necessary nitrogen, phosphorus and potassium. Powdered seaweed adds additional potassium and natural plant hormones that aid the flowers in resisting disease.

Add the Epsom salts and stir until the salts are dissolved. Epsom salts supply magnesium, which aids the plant in nutrient absorption.

Add the apple cider vinegar, molasses and coffee grounds and gently mix until all the clumps are gone. Apple cider vinegar adds trace minerals and acidity to the soil. Molasses gives the plants an iron and sugar boost to encourage vigorous blooming. Coffee grounds naturally increase and sustain an greater acidic pH and provide a minor caffeine boost for blooming.

Pour the organic fertilizer on the plants at sunset to avoid foliage burns. Pour the mixture over the leaves and then water in the food that falls to the roots. This mixture provides enough food for four small plants or two large bushes.


Things You Will Need

  • 10-10-10 fertilizer
  • 3 cups distilled water
  • Microwave-safe measuring cup
  • 2 tbsp. powdered fish
  • 1 tsp. powdered seaweed
  • 1 tbsp. Epsom salts
  • 2 tbsp. apple cider vinegar
  • 2 tbsp. molasses
  • 6 tbsp. coffee grounds

About the Author


Ann White is a freelance journalist with prior experience as a Corporate and Business Attorney and Family Law Mediator. She has written for multiple university newspapers and has published over 300 articles for publishers such as EHow and Garden Guides. White earned her Juris Doctor from Thomas Jefferson School of Law and a Bachelor of Arts in English literature.