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Homemade Plant Fertilizer

Homemade Plant Fertilizer

Blended organic fertilizers are useful when soil fertility is in question, when starting a new garden or trying to revitalize a garden. Natural source fertilizers are slow release and continue to work as they slowly break down. Over time, once soil fertility is re-established, the need for these supplements will decline.

Learn this fertilizer formula, here:

Steve Solomonís Formula (NPK 1:1.5:1)
Measure by volume:
4 parts seed meal (canoloa, alfalfa or soy) or fishmeal
1 part dolomite lime
1 part rock phosphate or 1/2 part bonemeal
1 part kelp meal

Blend well, but mix again before application. Work in lightly under young transplants, or sidedress along existing plants. Apply around the drip line of plants and work in gently so as not to damage the roots. Granulated fertilizer takes three to four weeks to break down before roots can access it.

Seedmeals=nitrogen source (N) for healthy leafy greens
Rock phosphate=phosphorus (P) for fruits and flowers
Kelp meal=potassium (potash) (K) for roots and overall good health
Lime counteracts soil acidity and adds calcium and magnesium

Read more: Nature, Lawns & Gardens, ,

Adapted from A Year on The Garden Path, by Carolyn Herriot (Earthfuture/Lantern, 2005). Copyright (c) 2005 by Carolyn Herriot. Reprinted by permission of Lantern Books.
Adapted from A Year on The Garden Path, by Carolyn Herriot (Earthfuture/Lantern, 2005).

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Annie B. Bond

Annie is a renowned expert in non-toxic and green living. She was named one of the top 20 environmental leaders by Body and Soul Magazine and "the foremost expert on green living." - Body & Soul Magazine, 2009. Learn Annie's latest eco-friendly news on, a website dedicated to healthy and green living.

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A Year on the Garden Path

A 52-week organic gardening now


+ add your own
2:52AM PDT on Jul 23, 2012

Eggshells are also great. Dry some eggshells then put into a blender until they resemble a fine dust. Prinkle under your plants for extra calcium.

7:47AM PDT on May 5, 2012


8:36AM PDT on May 3, 2012


5:16PM PDT on May 2, 2012

Great ideas. Thanks.

1:48PM PDT on May 2, 2012

Thanks for the info.

1:44PM PDT on May 2, 2012

Thanks for the info Annie and I have passed it along top my gardening friends via email.

5:19PM PST on Jan 2, 2012

Good idea but sort of hard to do.

12:28PM PST on Nov 20, 2011


4:14PM PST on Nov 18, 2011

Thanks for the article.

2:39AM PST on Feb 23, 2011

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