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๐ฟ Grow smarter, not harder โ the organic edge your garden deserves!
Espoma Organic Bio-Tone Starter Plus 4-3-3 is a premium, all-natural starter fertilizer enriched with beneficial bacteria and dual mycorrhizae. Designed for transplanting and new plantings, it promotes faster root establishment, stronger plants, and improved soil structure. Certified organic and made in the USA, this 8 lb. bag delivers balanced nutrition and eco-friendly performance trusted by gardeners since 1929.


| ASIN | B00N80W6WE |
| Best Sellers Rank | #1,671 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #83 in Garden Fertilizers |
| Brand | Espoma |
| Brand Name | Espoma |
| Coverage | Medium |
| Customer Reviews | 4.8 out of 5 stars 2,172 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 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | BTSP8 |
| Specific Uses For Product | Gardening |
| Target Species | For everything you plant |
| UPC | 050197038089 |
| Unit Count | 128.0 Ounce |
| Warranty Description | Warranty |
L**E
I wouldn't garden without it
I use this product in my garden every time I plant something. The plants turn out great and perform beautifully. I think my green thumb has a lot to do with this product. It's organic and I don't worry about using around my food. It does have a odor when you are adding it to the soil, but it goes away and you don't smell it afterwards. I'm used to it by now. I swear by it.
S**D
Feed your plants the best!
GREAT productโฆ.sold out here or unavailable so itโs great Amazon carries this as I go through four or five bags. Always a great choice!
J**K
Great Fertilizer
Always a great fertilizer. Safe and productive in starting plants and helping establish root systems. I use biotoneโs products regularly and always have great results.
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.
S**S
Amazingโฆโฆ
I have been gardening since I retired 8 years ago and this fertilizer is amazing!
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!
J**G
As advertised
Got what I expected and assume it is working. It's underground so can't see the roots. The plants I used it on when planting are looking good and healthy, two weeks after planting. The bag was split down one side and was inside of another bag to keep the fertilizer from spilling out. The weight was good so no problem. Took a star off because it was difficult getting it out without spilling it all over. Will chalk it up to a shipping isuse and will buy again when needed.
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.
C**O
Happy Planting
Love this product. My plants also seem to enjoy it. Would purchase again.
G**A
On the pricey side.
As expected! On the pricey side.
Trustpilot
1 month ago
1 week ago