Can I use this in potted plants?

That's all I use it on. I've used it for years and it's been great. I use it when I get plants from wherever ( nursery, Lowes, Home Depot, etc.) and want to put them into pots. I use the Bio-Tone starter to be sure they get good root growth and to make sure the transfer from little nursery containers to a bigger pot are successful.

I used this for the first time last night. It smelled like organic fertilizer. Today, I went to use it and it smells like ammonia. Is this OK?

Organic fertilizers can sometimes continue to compost if kept in a very warm place. The nitrogen heats it up further causing the ammonia smell. If the bag doesn't feel too warm, this is not a big deal, but I recommend you store it in a cool place to maintain the natural N-P-K balance and micro-organism makeup.

Can this be used in a potting mix (vermiculite and coconut choir) for starting seeds? Or will it cause burn?

Yes, definitely use it for potting mix- it promotes root growth like nothing I've ever used before and the strong odor comes from the mycorrhizae fungus- not from anything that would burn the seeds.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Espoma Organic Bio-Tone Starter Plus 4-3-3 Natural & Organic Starter Plant Food with Both Endo & Ecto Mycorrhizae; 4 lb. Bag; The Ultimate Starter Fertilizer - Pack of 1

Espoma Organic Bio-Tone Starter Plus 4-3-3 Natural & Organic Starter Plant Food with Both Endo & Ecto Mycorrhizae; 4 lb. Bag; The Ultimate Starter Fertilizer - Pack of 1

Product ID: 1180982

Details

Brand
Espoma
Item Form
Granules
Item Weight
4 pounds
Liquid Volume
4 liters
Specific Uses For Product
Gardening

🌱4-3-3 NPK ratio for balanced growth

🦠Dual endo & ecto mycorrhizae for root vitality

🇺🇸Made in USA with organic certification

€ 69.54

Duties & taxes included

In stock

Sold byAmazon PortugalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Portugal.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Description

🌿 Grow smarter, not harder — the organic starter your garden deserves!

TRUSTED HERITAGE BRAND - Espoma, a leader in organics since 1929, delivering proven garden success.
BALANCED NUTRIENT BOOST - Optimized 4-3-3 formula fuels strong roots and lush growth from day one.
READY TO USE CONVENIENCE - No mixing needed—just blend with soil at planting for instant root zone activation.
SYMBIOTIC MYCORRHIZAE POWER - Dual endo & ecto fungi enhance nutrient uptake and soil health for thriving plants.
CERTIFIED ORGANIC ECO SAFE - 100% natural ingredients with organic approval, free from toxins or sludge.

Espoma Organic Bio-Tone Starter Plus is a 4 lb. bag of premium, ready-to-use organic fertilizer with a balanced 4-3-3 NPK ratio enhanced by both endo and ecto mycorrhizae. Designed for all plants at planting or transplanting, it promotes robust root development and healthier soil. Certified organic and made in the USA by Espoma, a trusted name in natural gardening since 1929.

Specifications

ASIN	B000J3AG2K
Best Sellers Rank	#11,914 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #362 in Garden Fertilizers #560 in Plants, Seeds & Bulbs
Brand	Espoma
Brand Name	Espoma
Coverage	Medium
Customer Reviews	4.8 out of 5 stars 2,557 Reviews
Global Trade Identification Number	00050197038041, 00077349922027, 00885351226336
Included Components	Grass Seed, Plant Fertilizer
Item Form	Granules
Item Type Name	OUTDOOR RECREATION PRODUCT
Item Weight	4 pounds
Liquid Volume	4 liters
Manufacturer	Espoma
Mixing Ratio	9 pounds per cubic yard or 1 cup per cubic foot
Model Number	ESPOMA - BTSP4
Number of Items	1
Number of Packs	1
Part Number	ESPOMA - BTSP4
Specific Uses For Product	Gardening
Target Species	plants
UPC	077349922027 617407746358 050197038041 885351226336 050197035101
Warranty Description	Warranty

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

Pooja R.

The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

€ 69.54

Duties & taxes included

In stock

Sold byAmazon PortugalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Portugal.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

View all Trustpilot reviews