8 Best Organic Fertilizers | March 2017

We spent 33 hours on research, videography, and editing, to review the top choices for this wiki. If you are looking forward to enjoying all the fruits and vegetables you are growing in your garden, make sure you don't spoil them by adding any toxic or potentially dangerous chemicals to the soil. These organic fertilizers will enable you to grow more healthy, tasty and nutritious foods than you can find at your local supermarket. Skip to the best organic fertilizer on Amazon.
8 Best Organic Fertilizers | March 2017


Overall Rank: 7
Best Mid-Range
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Overall Rank: 1
Best High-End
★★★★★
Overall Rank: 2
Best Inexpensive
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Jobe's 09526 Organic All Purpose Granular fertilizer makes it easy to raise large, robust fruit- and vegetable-bearing plants that taste great and are loaded with nutrition. The formula contains billions of archaea, a beneficial microorganism that speeds matter breakdown.
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A bottle of Dr. Earth 1012 Home Grown "Tomato, Vegetable, and Herb Fertilizer" can give your garden the fuel it needs to produce delicious, nutritious vegetables, even if the soil in which they're planted is not ideal. Mix it in a watering can or use it with a sprayer.
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Believe it or not, the Unco Industries Wiggle Worm Soil Builder Earthworm Castings Organic Fertilizer is actually 100% odor free, which you'll appreciate given the nature of its provenance. Turn a handful or two into each planter pot or hoe some into your garden beds.
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This Global Harvest Organics "All Purpose Pelleted Organic Fertilizer" comes in a handy five pound resealable bag, so you can grab what you need for your tomato plant, flower bush, or shrubbery, or you can mix some into topsoil or cast it out over the lawn.
  • slow release nitrogen won't burn plants
  • contains over 65 trace minerals
  • slight unpleasant smell
Brand Global Harvest Organics
Model pending
Weight pending
4
Mixing a bag of ChickenFuel's OMRI-Listed organic compost fertilizer in with a few bags of standard top soil is a great way to create planting beds rich with the healthy microbial activity that helps you grow large, healthy shrubs, fruits and veggies, or other plants.
  • 3lb bag makes 50 gal. compost tea
  • good price for the quantity
  • sourced from creswell, oregon
Brand ChickenFuel
Model chickenfuel-3lb-bag
Weight 2.8 pounds
3
The ingredient list in the formula of Be-1 Organic's Fertilizer pellets may seem a bit weird, but you can't argue with the results you'll get -- thicker, lush, healthy plants. The recipe blends bat guano, crab shells, rice bran, sesame, and more.
  • concentrated amino acids
  • wild-sourced and gmo-free ingredients
  • easy to spread the uniform pellets
Brand Be-1 Organics
Model pending
Weight 1.2 pounds
2
The highly specialized blend of plant food in a bag of Espoma Tomato-Tone Organic Fertilizer contains no fewer than 15 essential nutrients that help you to grow larger, tastier, more nutritious edibles. This fertilizer also helps your fruits and veggies grow faster, too.
  • 100% environmentally safe
  • university tested formula
  • helps prevent blossom end rot
Brand Espoma
Model 346
Weight 3.9 pounds
1
With a bag of Pro Organic All Purpose Fertilizer from Shin Nong Inc. you can dish out the fertilizer liberally, as the formula presents no danger of over concentration. Use it to help your plants develop more robust root structures, ensuring better water retention ability.
  • promotes disease and insect resistance
  • maximizes microorganism activity
  • great reviews from users
Brand Shin Nong Inc.
Model pending
Weight 3 pounds

Selecting The Right Organic Fertilizer

Fertilizers are an invaluable aid in raising and maintaining plant life as they serve to replace the nutrients that are depleted from soil as a plant grows. With the right type and ratio of fertilizer, planted fields, beds, and pots need not be left fallow and need little fresh soil year after year, leading to greater efficiency and ease of horticultural management that farmers and gardeners from eras past could scarcely have imagined.

Whether you are concerned about your health and the wellbeing of other people who come onto your property and/or eat foods you raise, if you are dedicated to protecting the environment and eco-system, or if you just don't trust the chemicals used by major agribusinesses, using organic fertilizer is a great way to help your plants robust growth while minimizing exposure to potentially harmful substances.

More often than not, selecting the right organic fertilizer for your needs is as easy as considering what types of plants you will be assisting and then doing a bit of research and reading. Most fertilizer blends are created with specific types of plant in mind, so whether you are hoping to grow robust, productive tomatoes or if you want to restore your lawn to its healthy, verdant luster, with some looking, you can surely find the right fertilizer formula for your needs.

What might require a bit more thought is not so much determining the right fertilizer formula, but the best physical type of fertilizer to use. Organic fertilizers come in pellets, powders, stakes, and liquid form. And not all types of fertilizer medium are equally appropriate for varied applications.

If you are trying to grow a full bed of flowers (such as pansies or moss roses, for example), then turning a handful of powdered fertilizer into each cubic foot of soil is a good approach. For helping citrus trees create tasty, robust fruits, driving stakes of fertilizer into the ground a few feet away from their trunks is the way to go. Pellet fertilizer is slower to break down than powders, thus is great for use around established shrubs, trees, and bushes that will benefit for extended feedings. And finally liquid based fertilizers are great for smaller beds, potted plants, or even for mixing into the water of hydroponic systems.

Perfect Soil Preparations

Any gardener or landscape professional with a bit of knowledge and experience knows that too much of a "good thing" is actually a bad thing; that is to say, too much fertilizer can be every bit as detrimental to a plant than too little. In fact, it can worse: in high enough concentrations, fertilizers can effectively "burn" a plant, potentially even killing it.

Fertilizer burn typically occurs when an oversupply of nitrogen salts draws too much moisture out of a plant, leaving its leaves (and sometimes its stalk and even the roots) dried and damaged. Fertilizer burn can affect everything from the grass of a lawn to edible food crop plants to flowers and beyond.

The best way to avoid damaging a plant by the use of too much fertilizer also happens to be the best way to prepare soil for new plantings, as well: pre mixing soil and fertilizers creates a fecund material ready to help flora grown and thrive. Whether you are preparing a bed for a new year of tomato or pepper plants or you turning new earth into the ground around a well established citrus tree or row of hedges, choosing the right fertilizer and then mixing it with healthy soil -- and, ideally, some homemade compost as well -- will do wonders for your vegetation.

If you make your own compost, you are well on your way to enjoying wonderfully healthy plants. Mixing a few scoops of compost in to each wheelbarrow full of soil (whether fresh soil or that you scoop up from your own land) and then adding a handful of fertilizer can create a nutrient rich material that may well see your plants needing nothing but water and sunshine for an entire growing season. To make compost, be sure remember the basic guideline of a twenty to one ratio of carbon to nitrogen. That is to say, for every twenty parts of a compost blend made of substances like straw, pine needles, or sawdust to one part nitrogen rich materials like food scraps, grass clippings, and coffee grounds.

Differences Between Organic And Inorganic Fertilizer

As far as plant is concerned, there is little difference between organic and inorganic fertilizers. Both substances deliver compounds the plants need for ideal growth and development, the only difference being the source of these compounds. The real difference between the two substances is that an inorganic fertilizer helps plants without doing much (if anything) to renew thew health of the soil itself. Organic fertilizers can both help a plant grow and can help replenish the nutrients and balance of the surrounding earth beyond the roots.

In an inorganic fertilizer, the nutrients that will feed the plant are usually derived from petroleum products. Petroleum can be refined into a potent source of the nitrogen a plant needs, but it is a non renewable resource that can damage the earth during extraction and, ironically, damage it again when put back in the ground as a fertilizer. That's because while nitrogen (and other compounds, like phosphorous) can help plants grow, they also kill off many of the minute organisms that live in soil and which are usually responsible for helping maintain the healthy, natural balance of fertile land.

So fields, beds, or gardens treated with inorganic fertilizer may see a year or two (or even more) of healthy plant growth, it's likely that each year will require more and more fertilizer to yield the same results, thereby further damaging the soil. Eventually, earth exposed to too much inorganic fertilizer simply must be left barren for years or more, or else must be replaced.

Thus while a plant may grow just as well whether it receives organic or inorganic fertilizer, the gardener or farmer concerned about the greater good will always choose the naturally derived approach.



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Last updated: 03/29/2017 | Authorship Information

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