Best Bloom Booster for Soil – Reviews and Buyer’s Guide [March 2022]

When selecting a flowering booster, it is crucial to avoid mistaking it with fertilizer. Bloom boosters are supplements highly based on phosphorus content than fertilizers (e.g., MG Booster has 10-30-20 while MG has 26-6-10). The macronutrient content in bloom boosters proves the fact that phosphorous favors bloom growth. 

These stimulators are only applicable to the greenery that produces flowers, magnifying their flower production. They may prove detrimental to plants that lack bloom productivity in their development. In this feature, we will be airing:

1. The five best bloom boosters
2. The best flowering booster for all plants
3. Considerations when selecting a flowering stimulator
4. The required quota of bloom booster to administer
5. When to start administering bloom boosters
6. How to use a flower inducer

The Five Best Bloom Boosters

Parameter	Advanced Nutrients Bloom, Micro & Grow	FoxFarm Bloom Liquid Concentrate	General Hydroponics KoolBloom	House & Garden Top Booster	Espoma Flower Tone
Nature	Inorganic	Organic	Organic	Inorganic	Organic
Types of plants	Any flower-bearing plant, vegetables, seedlings	Flower bearing plants, vegetables, fruits	Flower bearing herbage, fruits	Flower bearing herbage, fruits	Flower bearing plants, annuals, perennials
Available sizes(lbs)	2.82	0.6	2.2	2.79	18.1
Where to use	Soils with pH imbalance (outdoor)	Outdoor/sick plants	Outdoor	Outdoor	Outdoor and indoor
Frequency of use	Once per week	Once per week	Once per the last weeks of the flower cycle	2-3 days	Once a month

Advanced Nutrients Bloom, Micro & Grow – Best Bloom Booster for Soil

Micro & Grow comes as a triage of macronutrients that guarantees your greenery’s rich growth and eventually ensues healthy flower development. It peaks nutrient intake and acts as a soil amendment since it balances the pH of the clod. It also works well in vegetable gardens. Chelation is unnecessary.

It is very mild, making it even friendly to seedlings and non-hazardous to plants. After administering, flushing each plant with at least 5 gallons of water for ten days is necessary to wash away excess salts or contaminants that may be present. At most, the biweekly administration will suffice.

Pros

• Amends soil pH 
• Guarantees sturdy herbage of your greenery
• Elevates nutrient intake

Cons

• Long shelf life may cause moldiness 

FoxFarm Bloom Liquid Concentrate – Best Disease Resistant Bloom Booster

Its 100% naturality makes it possible for the soil to retain moisture longer and elevate microbe activity. It acts as a remedy to greenery infected with ailments, positively exceeding its intended purpose. Its administration applies to flowering herbage, vegetables, and fruit-bearing plants.

Further, it multiplies flower productivity and seed formation thanks to its blend of earthworm castings and bat guano. Its utilization is applicable at any stage of the plant’s life. Administration by a foliar sprayer, hydroponic systems, or drip irrigation is preferable. Caution is necessary as it is toxic to the user.

Pros

• Propels microbe activity
• Ups flavor of fruits
• Elevates soil capacity

Cons

• Proves detrimental to users lacking the protective gear

General Hydroponics KoolBloom – Best Bloom Booster for Fruit-Bearing Plants

This phosphorous rich formulation (NPK 2:45:28) avails macronutrients to the greenery and fortifies the flower inducer. It elevates flower development, ensuring an abundance of flowering bushes. Moreover, it uniquely controls the ripening of fruits, making them bigger and sweeter. It is water-soluble, making spraying an appropriate administration method.

To boot, it elevates oil production and strengthens the fragrance of flowers. KoolBloom is a potent supplement, and its administration is only necessary during the final weeks of the flower cycle. It is non-toxic as long as you flush your herbage.

Pros

• Exponentially propels fruit production
• Ups flowering of plants
• Mildly stresses the greenery

Cons

• Will burn your herbage upon excess application

House & Garden Top Booster – Best Flower Stimulating Bloom Booster

This flowering inducer is based on potash and phosphorous as macronutrients and iron as a micronutrient. Potassium propels flowering at the beginning of its blooming while the phosphorous content elevates the herbage’s fructification process. Iron innards ensure the lushness of the folia. It is not toxic. Spraying administers it effectively.

Top Booster creates a virtual drought for the plant, prompting it to commence its flowering cycle early in advance. Its application should be for two or three days, after which one can go back to the routine mineral composition. 

Pros 

• Promotes flowering 
• Spray covers maxim area 
• Supplies Iron as a macronutrient 

Cons 

• Requires repetitive application

Espoma Flower Tone – Best Organic Bloom Booster

Espoma mainly focuses on blossoms and less on the foliage. It acts as a reservoir for the long-lasting nutrition of the plant. Its formulation of microbes benefit the plant and propel the growth of the herbage. It is toxic and should be stored safe from children.

For new planting, blend into the clod at a depth of 4 inches. For established flower beds, administer 4lbs per 80 square feet and ½ a cup all-around individual greenery. An excess application could potentially scorch the plant.

Pros

• Long lasting nutrition
• Propelling bloom development
• Microbes of great benefit

Cons

• Phosphorous runoff may compromise water form

Buyer’s Guide

How do I Choose a Bloom Booster?

Always check for the phosphorous content of the product. The higher, the better. Bloom boosters differ in their mode of administration; they are either sprayed, applied as liquid or solid formulations like spikes. Therefore, selecting one that eases your application is beneficial. Also, consider organic-based products since they pose less risk of scorching the plant.

How Much Bloom Booster to Use?

The quota to administer varies from one product to another. Strict adherence to producer guidelines is crucial for desired outcomes. Gardeners should be careful with chemical flowering inducers since excess applications could scorch plants. The application rate is indicated on the product description and the product data-sheet.

When should I Use Flower Inducers?

Observe your plant’s development of green tendrils close to the stems. These are signs of the beginning of the plant’s flower cycle, meaning it is ready to begin sprouting buds. This period is best to administer your bloom boosters. It mostly occurs in Spring and Autumn, depending on the flower species.

How should I Use a Bloom Booster?

Apply for two weeks while the plant is at a stage of abundant blooming in its flowering cycle. Use small amounts on indoor blossoms all through the year for continuous blooming. Avoid accumulation of the booster on plant leaves and apply with sufficient watering to promote its uptake by the plants.

Author’s Remarks

Flower inducers with the highest phosphorus content, offer excellent performance. Flushing your herbage after application of the product is necessary to rid of excess salts or contaminants. Be cautious of the quota of chemical bloom boosters you apply to avert plant burns. Remember, the phosphorus concentration is directly proportional to the product’s effectiveness in enhancing the garden’s flowering.