Espoma Organic Bulb-Tone 3-5-3 Fertilizer for Fall & Spring Bulbs – 4 lb (Pack of 2)

Nurture vibrant bulbs with natural care

Espoma Organic Bulb-Tone 3-5-3 is a ready-to-use fertilizer designed to support healthy growth for both fall and spring bulbs. This two-bag bundle includes two 4-pound bags, ensuring you have quick, dependable nutrition at planting time and for post-bloom feeding. The formula blends natural ingredients with Espoma’s Bio-tone microbial blend to nourish roots and promote consistent color in blooms, while staying gentle on the soil and environment.

What makes Bulb-Tone stand out

• Organic 3-5-3 NPK with 6% calcium for steady, balanced feeding
• Exclusive Bio-tone formula helps soil biology thrive
• Environmentally safe with no sludges or toxic ingredients
• Ready to use with no mixing required for convenient planting or post-bloom care
• Approved for organic gardening and registered as an Organic Input Material
• Made in the USA by Espoma, a pioneer in natural organics since 1929

How to use for best results

• Fall bulbs: place the recommended amount directly in the planting hole with the bulb, then cover with soil and water.
• Spring bulbs: feed at or just after planting; or sprinkle on the soil surface around established plants and water thoroughly.
• Always use as directed and water well after application to help nutrients reach root zones.

Why gardeners choose Bulb-Tone

This fertilizer supports a natural growth cycle by feeding through the soil with a balanced nutrient mix. It pairs well with organic gardening routines and can help you achieve healthier roots, stronger establishment, and lush blooms without relying on synthetic ingredients. While results can vary with weather, soil, and care, many gardeners notice more consistent bloom timing and color with regular, seasonally appropriate feeding.