SKU: 28934424041
bloom booster for pot plants

bloom booster for pot plants Jack's Professional 10-30-20 Blossom Booster, 25 lb

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Description

bloom booster for pot plants Jack's Professional 10-30-20 Blossom Booster, 25 lbJacks Classic Blossom Booster 10 30 20 Fertilizer is a professional formula designed to produce more flowers and brighter colors on all indoor and outdoor plants. It feeds through the roots and the leaves, giving your flowering plants a double dose of nourishment. This is the Original Blossom Booster with the proven 1: 3: 2 nutrient ratio of nitrogen, phosphate and potash. It also contains small amounts of magnesium, boron, copper and other essential

Jack’s Classic Blossom Booster 10-30-20 Fertilizer is a professional formula designed to produce more flowers and brighter colors on all indoor and outdoor plants. It feeds through the roots and the leaves, giving your flowering plants a double dose of nourishment. This is the Original Blossom Booster with the proven 1:3:2 nutrient ratio of nitrogen, phosphate and potash. It also contains small amounts of magnesium, boron, copper and other essential micronutrients.

The quality of Jack’s Blossom Booster is unmatched in the home gardener market. It’s trusted by many professional growers as a tool to fill out a blooming container. This formula will produce the same great results for you at home. Follow the instructions below to mix the fertilizer in water for small-volume applications or a siphon mixer. (Note it is not for use with injectors.) Order convenient 4-pound tubs or giant 25-pound bags with a Low Price Guarantee.

For best results, apply Jack’s 10-30-20 fertilizer every 7-14 days just like a thorough watering. Use this high-phosphorus formulation during periods of bud set to increase the number and size of blossoms. Blossom Booster is for use on all indoor and outdoor flowering plants like geraniums, impatiens, begonias and marigolds. It’s also great for vegetables and fruit and can be used as a transplant solution. Read the reviews of Jack’s Fertilizers 10-30-20 Blossom Booster to see how our customers have used this formula.


Specifications: Classic Formula

Total Nitrogen (N)....................................... 10%

5% Ammoniacal Nitrogen

5% Nitrate Nitrogen
Available Phosphate (P2O5)....................... 30%
Soluble Potash (K2O)................................. 20%
Magnesium (Mg)......................................... 2.03%

2.03% Water Soluble Magnesium (Mg)
Boron (B).................................................... 0.0068%
Copper (Cu)................................................ 0.0036%

0.0036% Chelated Copper (Cu)
Iron (Fe)...................................................... 0.0500%

0.0500% Chelated Iron (Fe)
Manganese (Mn)......................................... 0.0250%

0.0250% Water Soluble Manganese (Mn)
Molybdenum (Mo)....................................... 0.0009%
Zinc (Zn)...................................................... 0.0025%

0.0025% Chelated Zinc (Zn)

Specifications: Professional Formula

Total Nitrogen (N)....................................... 10%

5% Ammoniacal Nitrogen

5% Nitrate Nitrogen
Available Phosphate (P2O5)....................... 30%
Soluble Potash (K2O)................................. 20%
Magnesium (Mg)......................................... 0.50%

0.50% Water Soluble Magnesium (Mg)
Boron (B).................................................... 0.02%
Copper (Cu)................................................ 0.05%

0.05% Chelated Copper (Cu)
Iron (Fe)...................................................... 0.10%

0.10% Chelated Iron (Fe)
Manganese (Mn)......................................... 0.05%

0.05% Water Soluble Manganese (Mn)
Molybdenum (Mo)....................................... 0.0009%
Zinc (Zn)...................................................... 0.05%

0.05% Chelated Zinc (Zn)

For small volume mixing

Dissolve the following amounts in 1 gallon of water. Injectors should not be used.
1/2tsp. = 67.5 ppm
1tsp. = 125 ppm
1tbspn. = 375 ppm

When using a Siphonex or Hoze-on proportioned

1:15 Setting E.C.
100 ppm = 2.0 oz. 0.98
200 ppm = 4.0 oz. 1.96
300 ppm = 6.0 oz. 2.94

Limit of Solubility in Hot Water = 3.5 lbs. per gallon


Additional Information

Shipping Notes
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SKU: 28934424041

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Reviewed in the United States on May 15, 2026
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★★★★★ 5
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I gave this power bank 5 stars because it has been one of the most useful travel accessories I own. The biggest strength is how slim it is. It does not add a lot of bulk, and even with it attached to my iPhone, I can still fit the phone in my jeans pocket without much trouble. I have even carried it as part of an everyday carry setup because it is that easy to bring along. Perfect for travel This really shines on long-haul flights, airport layovers, and day trips when finding a working outlet is not guaranteed. It has saved me more than once when I needed extra battery to get through a long travel day. It is also great for trips where you are constantly on the move and do not want to worry about your phone dying halfway through the day. Strong magnetic hold The magnetic attachment is strong and secure. It stays in place well and does not slip around, which makes it much more practical to use while walking around or traveling. Performance It charges my phone quickly and gives me enough extra battery to keep going when I really need it. That alone makes it worth carrying. This is one of those products that really comes through at the right time, especially during travel. One minor drawback The only downside I have noticed is that the power bank itself takes a while to recharge through the USB-C port. For me, that is not a deal breaker because the portability and convenience more than make up for it. Bottom line For the size, portability, and convenience, this is a great value. It has been especially useful for flights, airport layovers, day trips, and even longer travel situations where reliable backup power matters. If you want a slim battery pack that is easy to carry and actually practical to use every day, this is an easy 5-star product.
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Reviewed in the United States on April 13, 2026
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PM
Pawtucket, US
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Color: Black
Super slim, lightweight, and easy to carry without adding bulk. The magnetic hold is strong, it stays cool while charging, and the charging speed is surprisingly fast for how compact it is. Recharge time is also quick which makes it easy to keep ready for daily use. Feels premium overall and has been extremely reliable so far.
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Reviewed in the United States on May 25, 2026
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★★★★★ 5
Thin, secure, with plenty of juice
Color: White, Color: White
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