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Living soil concentrate for autoflowers

Autoflower

Prepare your potting mix for autoflowering plants. This version of our original concentrate combines organic amendments and beneficial microorganisms in a formula developed for a shorter life cycle. Mix it with organic potting soil before planting.

See how to use it ↓

$25.951 lb · Free US retail shipping

Autoflower product packaging, 5 lb shownEnlarge image
Packaging pictured: 5 lb. Selected size: 1 lb.
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$25.95 each
Concentrate calculator: how much do I need?

Enter your whole pot’s size, even if you are only mixing concentrate into the bottom third. This is for a new mix with organic potting soil.

1 lb of concentrate in total

16 oz by weight · 3.2 oz of concentrate by weight per gallon of total container volume.

Lowest-cost bag combination in this catalog: 1 × 1 lb ($25.95).

Choose 1 lb →

Mix all the measured concentrate into the bottom third of the container; fill the upper two-thirds with plain potting soil.

Read complete directions →

For a fresh soil mix only. For top feeding, compost tea or reused soil, use the separate directions or ask NLS.

Typically ships within one business day after payment.

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Choosing your size

The selected size is the weight of NLS amendment in the bag, not a bag of finished potting soil.

Choose an amount for your container size and application method. Your selected package size is shown with the price.

Read Autoflower directions

WHAT IT BRINGS TO YOUR GROW

Why choose Autoflower?

Made for autoflowering plants

Choose a formula developed specifically for their shorter growing cycle.

One concentrate to measure

Add the combined amendments to your organic potting soil before planting.

Choose your setup

Use an amended bottom layer with the Super Soil Method, or mix throughout with the Living Soil Method.

FIND YOUR FIT

Is it right for your grow?

Choose Autoflower when preparing soil for autoflowering plants. For other plants, compare Original Recipe. Tell our growing assistant what you are planting if you would like help choosing.

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SIMPLE STEPS

How to use Autoflower

Mix with organic potting soil. Choose one method below. Both methods give your plant a spot of plain soil to start in.

SEE HOW IT WORKS

Autoflower: visual guide

Go at your own pace
Autoflower bag
Autoflower
Weigh
Use a scale
Use a scale for ounces by weight.
Step 1 of 4

Check the size of your pot. Use a scale to weigh 3.2 oz of NLS concentrate for each gallon the whole pot holds. For a 5-gallon pot, use 16 oz (1 lb).

Amount to use3.2 oz of concentrate by weight per gallon of total container volume.

Choose this method OR the whole-pot method. Do not do both. Picture your pot in three equal layers: the NLS mix goes in the bottom layer.

Super Soil Method — mix into the bottom layer

3.2 oz of concentrate by weight per gallon of total container volume.

  1. Check the size of your pot. Use a scale to weigh 3.2 oz of NLS concentrate for each gallon the whole pot holds. For a 5-gallon pot, use 16 oz (1 lb).
  2. In a separate container, mix that concentrate with enough organic potting soil to fill the bottom third of your pot. Stir it well.
  3. Put the mix in the bottom third of your pot. Fill the rest with plain organic potting soil. Do not add more concentrate to this top layer.
  4. Plant in the plain soil at the top. Then water your plant.

Choose this method OR the whole-pot method. Do not do both. Picture your pot in three equal layers: the NLS mix goes in the bottom layer.

Living Soil Method — mix through the whole pot

3.2 oz of concentrate by weight per gallon of soil you are preparing.

  1. Measure how much soil you will use. Weigh 3.2 oz of concentrate for each gallon of soil. For 5 gallons of soil, use 16 oz (1 lb). If a 5-gallon pot holds only 3 gallons of soil, use 9.6 oz. Do not count the empty space.
  2. Mix the concentrate evenly into the organic potting soil. Fill your pot with this mix.
  3. Make a hole in the mix about the size of a 16-fluid-ounce drinking cup. Fill this hole with plain organic potting soil. Put your plant in this plain-soil spot, then water.

Choose this method OR the bottom-layer method. Do not do both. The plain-soil spot gives your plant a place to start.

Top feeding — sprinkle on the soil

1 tablespoon of concentrate per plant.

  1. Measure 1 tablespoon for each plant. Sprinkle it on top of the soil, then water.
  2. Repeat every few waterings. If you have already added other plant food, ask NLS before adding more.

Use these steps for Original Recipe, Autoflower or Katie’s Vegan Soil. Girl Flower Power has different directions.

Compost tea — mix the concentrate with water

Per gallon of water: 2 tablespoons of concentrate. Optional but recommended: 2 tablespoons of unsulfured blackstrap molasses.

  1. Add 2 level tablespoons of concentrate to 1 gallon of water. Do not use heaping spoonfuls. If using molasses, add 2 tablespoons of unsulfured blackstrap molasses.
  2. Let the mix sit for 2–8 hours. Stir it now and then. If you need to adjust the pH (how acidic the water is), use a target of 6.5.
  3. The first time, use a half dose. Ask NLS how much of the finished tea to give your plant before you pour it on.
Full Autoflower directions & labels ↗

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