Bulb+ Fertilizer - 3lb. Bag
Bulb+ Fertilizer - 3lb. Bag
Made and shipped by MIgardener
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Bulb+ is a 3-pound organic fertilizer made to protect and feed bulbs and tubers in both spring and fall. Organic sulfur helps guard against mold and rot, phosphorus drives root development for strong establishment, and over 60 trace minerals from sources like greensand and azomite feed the soil and keep beneficial microbes happy. Each bag holds about 52 servings.
At a glance
- Product: Bulb+ bulb and tuber fertilizer
- Bag size: 3 lb (about 52 servings)
- Type: Organic
- Key ingredients: Organic sulfur, phosphorus, 60+ trace minerals
- Mineral sources: Greensand and azomite
- Season: Spring and fall
Best for
- Garlic and onion sets
- Tulips, daffodils, and iris
- Potatoes and dahlias
- Protecting bulbs from mold and rot
- Building healthy, mineral-rich soil
How to use
Apply 1 tablespoon of Bulb+ per bulb in each planting hole, cover the bulbs, then water well and mulch if needed. Use in spring or fall for bulbs, tubers, flowers, and vegetables. Bulbs are not included.
About MIgardener
MIgardener is a Michigan-based company known for affordable heirloom seeds and practical garden supplies that help home growers succeed from seed to harvest.

Product facts
- Made by
- MIgardener
- Maker based in
- St. Clair, Michigan
- Size
- Price per unit