Stonington Blend™

Grower's Mix

Grower's Mix

High performance, grow clean potting mix for large container plants

Skip to product information
1 of 2

Stonington Blend™

Grower's Mix

Grower's Mix

High performance, grow clean potting mix for large container plants

Regular price $36.99
Regular price Sale price $36.99
Sale Sold out
Shipping calculated at checkout.
Select Size

You’ll love our local retailers’ organic insights, but if none are nearby, we can ship directly to you.

Find Local



Created specifically for growing Cannabis. Rich in nutrients and formulated with amendments designed to boost budding, blooming and root development. Designed for high performance growing in containers and large pots. This blend incorporates sphagnum peat moss, coir, perlite, compost, worm castings, fish bone meal, lobster and crab shell meal, kelp meal, alfalfa meal and mycorrhizae. For best results, grow in 15 gallon containers.

Quick Growing Guide:

View full details

Stonington Blend is made of sphagnum peat moss, coco fiber (coir), composted manure, perlite, fertilizer (see below) and mycorrhizae.

0.50 - 0.34 - 0.12

Guaranteed Analysis

Total Nitrogen (N) 0.50% - 0.5% Water Insoluble Nitrogen*

Available Phosphate (P205) 0.34%

Soluble Potash (K20) 0.12%

Derived from: Composted poultry manure, fish bone meal, lobster & crab shell, kelp meal, earthworm castings and alfalfa meal.

*0.5% Slowly available nitrogen from composted poultry manure, fish bone meal, lobster & crab shell, kelp meal, earthworm castings and alfalfa meal.

Also contains non-plant food ingredients:
Soil Amending Ingredient Guaranteed Analysis
Active Ingredients
Endomycorrhizae species
Glomus intraradices 0.07 spores/gram
Total Other Ingredients 99.9%

Stonington Blend is carefully formulated from natural ingredients to provide an ideal balance between water retention, soil texture, drainage and aeration in a consistent growing medium.

Stonington Blend contains viable mycorrhizal propagules per cubic centimeter (cc) of the following organism:

Endo Mycorrhizae species:
Glomus intraradices @ 00.07 spores/cc

Endomycorrhizal fungi colonize approximately 80% of the world’s plant species, including most vegetables, fruit trees and shrubs, flowering plants, grasses, legumes and many more. For more information about mycorrhizae visit:

Storage: Store this bag in a cool, dry, shaded place, avoiding direct sunlight.

This 1.5 cubic foot bag will fill

  • (36) 1 quart (6″) pots
  • (9) 1 gallon (8″) pots
  • (3) 3 gallon (10″) pots
  • (2) 5 gallon (14″) pots
  • (1) 10 gallon (20″) pot

The above are approximations, as the actual amount of Grower’s Mix needed will de-pend on the size of your plant’s root ball.

How large is your container?
How Many?
Product size
Total gallons of product needed:
Bags of product needed:

Make sure your selected pot(s) have drainage holes.

If you are combining different plants, make sure they are good companions (i.e. they like similar amounts of sun or shade and moisture conditions).

Transplanting into larger containers

  • Seedlings or clones should be transplanted into larger containers when they have sprouted their 4th or 5th set of leaves. (We recommend our Sprout Island™ Seed Starter for germinating seeds.) 
  • Water your plants 1 – 2 days before transplanting. This will help to keep the rootball intact in the potting soil and help it slide out of its pot more easily.
  • Fill the transplant container with Stonington Blend™ and pre-water. (Avoid overpacking the soil as this can affect drainage and could damage the tender roots.)
  • Scoop out a hole in the soil for each plant deep enough so the top of the rootball will end up about 1” below the top of the pot.
  • Carefully remove the plants from their smaller containers and place into the holes in the transplant container.
  • Add more soil until it is level all around your plants. 
  • Water lightly to avoid disturbing the top layer of soil.

Container plants need to be regularly watered and occasionally fed. For best results, water only when the soil is slightly dry to the touch. Because Stonington Blend™ is naturally dark in color, it may be hard to tell just by sight. Feed as needed with an organic plant food.

Rich Resources for Your Garden



Native Seed Secrets

Tempted to go native in your garden? Seeds are a super way to start. Thanks to the new movement to nurture native plants in our gardens, seeds of all-time favorites...

Read Article Growing Guide
We Love Local

We believe in nurturing relationships with local retailers.

Coast of Maine products are carried by retail partners who can provide the advice and insight not found in big-box stores. Click to connect with the one nearest you.

Find Local

with the richest results