Bottom line: Espoma's seed starting mix resulted in lower germination rates and seedlings which sprouted more slowly than those grown in Black Gold's seedling mix. Black Gold is a better organic seed starting mix if your goal is germination.
More details: I started marigold seeds, half with Black Gold (which I have also reviewed) and the other half in Espoma's seed starting mix. They were subjected to the same conditions indoors under fluorescent lights. The seeds in the Black Gold mix started growling in just 3 days, while those in Espoma's mix were 1-2 days behind. The germination rates for Espoma were also ~30% lower.
Update 3 weeks later: the seedlings are now outside enjoying the sun. Those on the left were planted in Black Gold, while those on the right were planted in Espoma's seed starting mix. I planted almost twice as many seeds to get enough marigolds in Espoma's mix in the end, but once they germinated, the seedlings took off! I've now had to add fertilizer to those grown in Black Gold, in the hopes of improving their growth so they can catch up. Keep in mind that you will need to fertilize if you choose Black Gold.
Espoma SS16 16-Quart Organic Seed Starter Premium Potting Mix
| Brand | Espoma |
| Item Weight | 5.23 Pounds |
| Item Volume | 16 Quarts |
About this item
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- Espoma Ss16 16-Quart Organic Seed Starter Premium Potting Mix
- Premium Potting Mix
- Country Of Origin: United States
- Brand Name: Espoma
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From the manufacturer
Espoma Organic Seed Starter Premium Potting Mix
- For all seedlings and cuttings.
- Promotes Root Growth
- Improves moisture retention
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| Customer Rating | 4.6 out of 5 stars (826) | 4.6 out of 5 stars (3173) | 4.7 out of 5 stars (8670) | 4.6 out of 5 stars (508) | 4.5 out of 5 stars (1977) |
| Price | From $19.56 | $10.74$10.74 | $12.99$12.99 | $14.50$14.50 | $16.27$16.27 |
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| Sold By | Available from these sellers | Amazon.com | Amazon.com | Amazon.com | Astro Wholesale |
Product description
Espoma SS16 16-Quart Organic Seed Starter Premium Potting Mix
Product information
| Product Dimensions | 24 x 2 x 13 inches |
|---|---|
| Item Weight | 5.23 pounds |
| Manufacturer | Espoma |
| ASIN | B0046VHU1G |
| Item model number | SS16 |
| Customer Reviews |
4.6 out of 5 stars |
| Best Sellers Rank |
#33,480 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)
#328 in Garden Soil |
| Is Discontinued By Manufacturer | No |
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Customer reviews
4.6 out of 5 stars
4.6 out of 5
826 global ratings
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Top reviews
Top reviews from the United States
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4.0 out of 5 stars
Lower germination than Black Gold's seed starting mix -- but more vigorous growth!!
Reviewed in the United States on April 20, 2015Verified Purchase
4.0 out of 5 stars
Lower germination than Black Gold's seed starting mix -- but more vigorous growth!!
By AY in NY on April 20, 2015
Bottom line: Espoma's seed starting mix resulted in lower germination rates and seedlings which sprouted more slowly than those grown in Black Gold's seedling mix. Black Gold is a better organic seed starting mix if your goal is germination.By AY in NY on April 20, 2015
More details: I started marigold seeds, half with Black Gold (which I have also reviewed) and the other half in Espoma's seed starting mix. They were subjected to the same conditions indoors under fluorescent lights. The seeds in the Black Gold mix started growling in just 3 days, while those in Espoma's mix were 1-2 days behind. The germination rates for Espoma were also ~30% lower.
Update 3 weeks later: the seedlings are now outside enjoying the sun. Those on the left were planted in Black Gold, while those on the right were planted in Espoma's seed starting mix. I planted almost twice as many seeds to get enough marigolds in Espoma's mix in the end, but once they germinated, the seedlings took off! I've now had to add fertilizer to those grown in Black Gold, in the hopes of improving their growth so they can catch up. Keep in mind that you will need to fertilize if you choose Black Gold.
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176 people found this helpful
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Reviewed in the United States on October 31, 2018
Verified Purchase
As an avid gardener I have learned that the most ideal and possibly the best garden soil has to have the right mixture of chemical components, physical components and biological matter to achieve optimum results.
1. Chemically soil must contain adequate amounts of essential nutrient contents, (such as nitrogen, phosphorus, potassium), be of suitable acid-alkaline reaction (pH levels), and free of substances toxic to plant growth, (such as herbicides).
2. Physically soil should allow water to drain through and air to gain ready admittance, but not so loose that it does not retain enough moisture and nutrients for the plants’ needs, (in other words moist well drained soil).
3. Biologically soil should contain an abundance of favorable organic matter (humus, which is what remains after extensive decomposition of organic matter), and other helpful soil organisms (such as earthworms) and a minimum of harmful ones, (such as nematodes).
When the above three conditions are met, the gardener now has rich organic soil to successfully grow and harvest a variety of crops. Espoma Organic Seed Starter Premium Potting Mix has all the above components; it is dark, rich with organic matter, moist, soft and light.
I was able to successfully grow and reap a bountiful harvest of tomatoes, hot peppers (serrano and habanero), lettuce, broccoli, cucumbers, carrots and a wide variety of herbs and flowering plants, using this seed starter mix and followed up with Espoma Organic Potting Mix.
This is the best organic potting mix I've used and it gave optimum results. A+
1. Chemically soil must contain adequate amounts of essential nutrient contents, (such as nitrogen, phosphorus, potassium), be of suitable acid-alkaline reaction (pH levels), and free of substances toxic to plant growth, (such as herbicides).
2. Physically soil should allow water to drain through and air to gain ready admittance, but not so loose that it does not retain enough moisture and nutrients for the plants’ needs, (in other words moist well drained soil).
3. Biologically soil should contain an abundance of favorable organic matter (humus, which is what remains after extensive decomposition of organic matter), and other helpful soil organisms (such as earthworms) and a minimum of harmful ones, (such as nematodes).
When the above three conditions are met, the gardener now has rich organic soil to successfully grow and harvest a variety of crops. Espoma Organic Seed Starter Premium Potting Mix has all the above components; it is dark, rich with organic matter, moist, soft and light.
I was able to successfully grow and reap a bountiful harvest of tomatoes, hot peppers (serrano and habanero), lettuce, broccoli, cucumbers, carrots and a wide variety of herbs and flowering plants, using this seed starter mix and followed up with Espoma Organic Potting Mix.
This is the best organic potting mix I've used and it gave optimum results. A+
17 people found this helpful
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Reviewed in the United States on January 13, 2020
Verified Purchase
First time using this brand of starter soil for my seeds. Unfortunately there's a LOT of large pieces of twigs and chunks of wood. It feels a little rougher than usual seed starting mix as well, not nearly as finely ground. I kmow some seeds are fairly fickle about their growing medium so I'm hoping this won't effect them too much.
2.0 out of 5 stars
A lot of twigs and bark, not finely milled.
By C.C. on January 13, 2020
First time using this brand of starter soil for my seeds. Unfortunately there's a LOT of large pieces of twigs and chunks of wood. It feels a little rougher than usual seed starting mix as well, not nearly as finely ground. I kmow some seeds are fairly fickle about their growing medium so I'm hoping this won't effect them too much.
By C.C. on January 13, 2020
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8 people found this helpful
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Reviewed in the United States on April 29, 2016
Verified Purchase
I bought this, as well as the organic Jiffy 5063 Seed Starting Mix. My seeds germinated better in the Jiffy mix, and are bigger and stronger now. I think the Espoma is a good choice for bigger, hardier seeds. It is more coarse, and seemed too heavy for tiny seeds like oregano.
I've been starting all my seeds in the Jiffy 5063 Seed Starting Mix now, in peat pots. Once the roots start coming out the bottoms of the peat pots, I move them to larger peat pots with a mix of the Espoma and some worm castings. It keeps the soil light and fluffy for the young roots, and also gives them some nourishment. So far, all my seedlings look great! When they get just a little bigger, I'll move them into potting soil until they can go out in my garden beds.
I've been starting all my seeds in the Jiffy 5063 Seed Starting Mix now, in peat pots. Once the roots start coming out the bottoms of the peat pots, I move them to larger peat pots with a mix of the Espoma and some worm castings. It keeps the soil light and fluffy for the young roots, and also gives them some nourishment. So far, all my seedlings look great! When they get just a little bigger, I'll move them into potting soil until they can go out in my garden beds.
27 people found this helpful
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Reviewed in the United States on March 4, 2012
Verified Purchase
I am an avid vegetable gardener with many years of seed starting experience. Over the years I have literally started many thousands of vegetable plants and flowers from seed. I use this mix just as it is. I do not add anything to it. The mix is very fine and suitable for starting small seeds like tomatoes and tomatillos. I started some Sweet Million seeds in this mix which are very small and as best I could tell every seed germinated.
This is an ideal mix for bottom watering. I use 1020 trays and 32 cell flats. I fill the cells to the level the seeds are to be planted at and tamp the soil down. I use an extra cell for this that I cut out of an old tray. After that I add the seeds and then fill the cells to the top with seed starting mix. Then tamp down the mix again. At this point I bottom water. The soil mix absorbs the water all the way to the top of the cells within an hour. If it takes longer than that its only because I did not add enough water to begin with. I use bottom heat and a humidity dome and in a few short days things are sprouting.
A litte seed starting advice.
Use new cells and trays or wash the ones you have with water and bleach. One Tablespoon of bleach per gallon of water. Once cleaned be sure to rinse them with clean water. This is to lower the risk of molds and fungus's growing in your trays.
Use bottom heat and a humidity dome. The bottom heat will greatly increase your germination rates and the speed at which your seeds germinate. Use a spray bottle to keep your humidity dome damp. Remove the humidity dome after your seeds have successfully sprouted. If you don't you will increase your odds of having a problem with molds and fungus's. Once the seeds are up and the shell of the seed is separated from the seedling the dome has done its job anyway. The tender seedlings may be somewhat dependent on the higher rate of humidity though so remember to remove the humidity dome gradually. Turn it a little so air can flow under it or cock it on one end. Then remove it entirely for half an hour to an hour at a time. In less than a day most seedlings will adjust and you can leave the dome off thereafter.
This is an ideal mix for bottom watering. I use 1020 trays and 32 cell flats. I fill the cells to the level the seeds are to be planted at and tamp the soil down. I use an extra cell for this that I cut out of an old tray. After that I add the seeds and then fill the cells to the top with seed starting mix. Then tamp down the mix again. At this point I bottom water. The soil mix absorbs the water all the way to the top of the cells within an hour. If it takes longer than that its only because I did not add enough water to begin with. I use bottom heat and a humidity dome and in a few short days things are sprouting.
A litte seed starting advice.
Use new cells and trays or wash the ones you have with water and bleach. One Tablespoon of bleach per gallon of water. Once cleaned be sure to rinse them with clean water. This is to lower the risk of molds and fungus's growing in your trays.
Use bottom heat and a humidity dome. The bottom heat will greatly increase your germination rates and the speed at which your seeds germinate. Use a spray bottle to keep your humidity dome damp. Remove the humidity dome after your seeds have successfully sprouted. If you don't you will increase your odds of having a problem with molds and fungus's. Once the seeds are up and the shell of the seed is separated from the seedling the dome has done its job anyway. The tender seedlings may be somewhat dependent on the higher rate of humidity though so remember to remove the humidity dome gradually. Turn it a little so air can flow under it or cock it on one end. Then remove it entirely for half an hour to an hour at a time. In less than a day most seedlings will adjust and you can leave the dome off thereafter.
115 people found this helpful
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Top reviews from other countries
BettyOops
5.0 out of 5 stars
Seeds are sprouting and growing well!!!
Reviewed in Canada on May 4, 2016Verified Purchase
Well packed for shipping. Arrived quicker than expected. Soil is a nice dark colour, light in texture, and smells clean and earthy. My seeds began sprouting 3 days after planting, and are growing well. It's everything I had hoped for so will order again.
Little White Feather
1.0 out of 5 stars
It was the worst.
Reviewed in Canada on January 27, 2019Verified Purchase
It would dry out multiple times a day making it hard for seeds to sprout
Aliana
5.0 out of 5 stars
Perfect!
Reviewed in Canada on June 26, 2016Verified Purchase
My alyssum seedlings are already sprouting!
5.0 out of 5 stars
Perfect!
Reviewed in Canada on June 26, 2016
My alyssum seedlings are already sprouting!
Reviewed in Canada on June 26, 2016
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One person found this helpful
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