













🌷 Grow like a pro, bloom like a boss!
Espoma Organic Bulb-Tone is a premium 4 lb. natural fertilizer with a 3-5-3 NPK ratio and 6% calcium, designed to promote vibrant blooms in all spring and fall bulbs. Certified organic and enhanced with Espoma’s exclusive Bio-tone formula, it’s easy to use directly in planting holes or on established plants. Trusted by gardeners since 1929, this eco-friendly fertilizer ensures stronger, healthier plants without toxic ingredients.



| ASIN | B00FSG218U |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #9,788 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #330 in Garden Fertilizers |
| Brand | Espoma |
| Coverage | Medium |
| Customer Reviews | 4.7 4.7 out of 5 stars (338) |
| Date First Available | September 9, 2013 |
| Included Components | Espoma - BT4 |
| Item Form | Granules |
| Item Package Quantity | 1 |
| Item Weight | 4 pounds |
| Item model number | Espoma - BT4 #2 |
| Manufacturer | Espoma |
| Number Of Pieces | 1 |
| Number of Items | 1 |
| Part Number | BT4 |
| Product Dimensions | 3.3 x 5.4 x 13.6 inches |
| Specific Uses For Product | Plant Growth |
| Style | Modern |
| UPC | 050197006040 050197006057 |
| Unit Count | 1.0 Count |
R**M
Leads to stronger plants in the spring.
Great bulb starter. Used this batch for new bulbs just planted but I know how it improved bulbs in the past
R**R
It works! for many flowering plants!
Good for bulbs and lots more. Just look up what you can use it for. Great blooms come from this!
R**S
Good quality
Good product. Used when planting my bulbs about 6 weeks ago and seeing results already
A**E
Great product
Easy to use while planting bulbs
V**M
Healthy tulips!
My bulbs love this food! They came up beautifully strong!
K**O
Seems to nourish bulbs
I used this during planting of bulbs as well as top dressing. It seems to work well, most bulbs came up and look decent.
K**S
Good for raising Peonies.
Grows Beautiful Peonies which we love and grow in pots in Central Texas.
S**Z
Good stuff
Such a Good product. I’m excited about the 2026 display.
Trustpilot
3 days ago
2 weeks ago