

🌿 Grow like a pro, naturally — don’t let your garden miss out!
Espoma Organic Bio-Tone Starter Plus 4-3-3 is a premium, all-natural organic fertilizer designed to jumpstart plant growth with a balanced nutrient profile and dual mycorrhizal fungi. Ideal for transplanting and new plantings, it enhances root development, soil health, and plant resilience. Certified organic and made in the USA by a trusted leader since 1929, this 8 lb. bag delivers long-lasting, eco-friendly nutrition for thriving gardens.


| ASIN | B00N80W6WE |
| Best Sellers Rank | #2,545 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #135 in Garden Fertilizers |
| Brand | Espoma |
| Brand Name | Espoma |
| Coverage | Medium |
| Customer Reviews | 4.8 out of 5 stars 2,104 Reviews |
| Global Trade Identification Number | 00050197038089 |
| Included Components | Espoma Organic Bio-Tone Starter Plus 4-3-3 Natural & Organic Food with Both Endo |
| Item Form | Granules |
| Item Type Name | Espoma Organic Bio-Tone Starter Plus 4-3-3 Natural & Organic Food with Both Endo |
| Item Weight | 8 Pounds |
| Manufacturer | Espoma |
| Mixing Ratio | Mix with soil |
| Model Number | BTSP8 |
| Specific Uses For Product | Gardening |
| Target Species | For everything you plant |
| UPC | 050197038089 |
| Unit Count | 128.0 Ounce |
| Warranty Description | Warranty |
F**X
Love this!
This product is excellent! it worked very well on all of the plants that I used it on! It has repaired the damage that I had on my Rhododendrons. It improved the health on my Boxwoods. It helped my ornamental tall grass grow thicker and taller. This is a high-quality product that i highly recommend. Use as directed as it is concentrated!
M**.
Ultimate Organic Starter Fertilizer for Strong, Healthy Plants
The Espoma Organic Bio-Tone Starter Plus 4-3-3 is a premium all-natural fertilizer designed to give new plants a strong, healthy start. Enriched with both endo and ecto mycorrhizae, it improves root growth, nutrient uptake, and overall plant vigor. Perfect for seedlings, transplants, and young plants, this 8 lb. bag delivers long-lasting, balanced nutrition while supporting organic gardening practices, making it the ultimate starter food for thriving gardens.
D**D
Happy plants
Why did you pick this product vs others?: Saw on garden answer her plants do great, decided to try, plant areblookig bettet than thever have in this soil i have has to be amended soi added this to everything plant.Big difference, bigger healthier plants, more blooms. I just dont under stant the price constantly rising when so many love it. I would think price would be lower due to demand not constantly increasing. Thats my only complaint. Otherwise awesome product.
D**A
Great Results!
We added this to our old planters before adding the new annuals. We had beautiful flowers all summer and fall. This was easier and more effective than other brands we've tried.
A**S
Good starter supplement
As advertised
K**Y
Best product for new plants
I use this product in every new plant I put in the ground as well as any transplanting. It works so well that all my plants have healthy starts and don’t suffer from transplant shock.
R**L
THE PRICE IS RIGHT
This fertilizer works well to feed seedlings at first transplant or if u are using a medium that has no fertilizer in it to begin with u could add this in. It has enough in there to give plants a good start and it's easy to use. Doesn't damage yr skin when u touch it like some other products.
V**M
A must have!
I buy this fertilizer every year. It helps my plants get a great start right from the beginning. I would buy locally if it was sold locally.
Trustpilot
2 weeks ago
2 months ago