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Espoma Bio-tone Starter Plus Organic Granules Plant Food 25 lb

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Mycorrhizae-boosted, slow-release formula that helps new plantings and transplants establish strong roots without the risk of nutrient burn.
Espoma MPN BTSP25 In Stock & Ready to Ship
$44.99
Free shipping on orders over $149
Ships within 24 hours · most orders arrive in about 2 business days
Ships free on orders over $149 $14.99 flat shipping until your order reaches $149.

About Product Overview

Espoma's Bio-tone Starter Plus is built for the moment that matters most: getting a new plant established. The 4-3-3 formula includes mycorrhizae, beneficial fungi that colonize root systems and help plants pull more water and nutrients from the soil, which is exactly what a transplant or new bed needs to take hold. Because it's slow-release, the granules feed steadily over time instead of dumping nutrients all at once, so there's less risk of burning tender new roots.

This is an all-purpose, organic formula suited to multi-season use, whether you're planting trees, shrubs, perennials, or vegetables. The 25 lb bag covers 100 square feet, making it a practical size for homeowners tackling several beds or a landscaper stocking up for the season. Made in the USA.

  • NPK Analysis: 4-3-3
  • Active Ingredient: Mycorrhizae
  • Form: Granules, slow-release
  • Organic: Yes
  • Coverage: 100 sq ft per 25 lb bag
  • Use: All-purpose, multi-season

The Details Specifications

Brand Espoma
Model / MPN BTSP25
UPC 050197038256
Weight 25 lbs
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
Price check

Go ahead. Check.

You're going to price-check us against Amazon, Home Depot, and Lowe's. Everybody does. Good — open all three tabs. We'll wait. Then look hard at what you're actually being handed over there.

On Amazon, start with these four questions before you click buy.

01

Who's actually selling it

The brand name is on the listing. A different company is in the seller field. Those aren't the same thing, and the second one is who you're buying from.

02

Whether the warranty survives

Most manufacturers only honor a warranty when the unit came through an authorized dealer. We're authorized for Espoma. A third-party marketplace seller usually isn't.

03

Where the box came from

Gray-market stock, returns repackaged as new, and outright fakes move through marketplaces constantly. It all looks identical in the photo. It stops looking identical when it fails.

04

Who you call when it breaks

Ours is a phone number with a person behind it who has held this product. M–F, 6 AM – 5 PM Pacific. (866) 469-8556

The big boxes don't care if your hardware store survives.

Amazon, Home Depot, and Lowe's are built to pull every hardware dollar out of your town. When the local shop can't keep the lights on, the counter where somebody actually knew which part you needed goes with it. We're built the other way: real brands so you're never stuck on a marketplace, and a straight answer to buy it down the street when that's the better call. Support independent hardware — it doesn't restock itself.

Why we tell you to shop local
Authorized dealer · Espoma

Or skip the tabs entirely and buy it down the street. Find a store near you →

Shop Local · Support Independent

Every order helps keep your local hardware store on the corner.

Why we built NHG
You might find it for less locally. Independent retailers often offer competitive pricing — some products are even cheaper in-store than online.
Real expert advice — not search results. Independent hardware staff know their inventory and the local conditions you're working in.
Keep the neighborhood working. Every dollar spent at an independent retailer returns roughly 3x more to your local economy than at a national chain.

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