Are Coffee Grounds Good for Dahlias?

Have you ever wondered whether coffee grounds can be beneficial for your dahlia plants? Rest assured, not only are coffee grounds beneficial, they are actually a wonderful fertilizer!

Overview of Dahlias

•  Dahlias are a beautiful and versatile type of flower native to areas in Mexico and Central America.  Gardeners around the world (me included!) love them for their variety in size, color, and shape.

Required Nutrients for Healthy Dahlia Growth

•  Nitrogen (N) Dahlias need nitrogen to build proteins and promote strong vegetative growth. •  Phosphoric Acid (P2O5) This essential nutrient promotes sturdy roots, robust stems, and abundant blooms.

Coffee Grounds as a Natural Fertilizer

•  Coffee grounds can be an excellent alternative to commercial fertilizers!  They are not just readily available; they are also sustainable and eco-friendly.

Nutrient Profile of Coffee Grounds

•  Nitrogen: Coffee grounds include about 2% nitrogen. •  Phosphoric Acid: There’s about a third percent of phosphoric acid in coffee grounds.


•  The coffee grounds can be used effectively as a fertilizer for Dahlia cultivation; the application process involves timely addition to the soil in moderate quantities.

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