Bloom Fertilizer | Booster for Flowering Plants

When supplemental Bloom Fertilizer may be useful

When your flowering plants are developing buds and testing or an established feeding plan shows a need for phosphate and potash
When your container blooms are actively growing but their main fertilizer program supplies too little phosphorus or potassium
When your garden soil test shows low phosphate or potash before a planned flowering crop
When you want a nitrogen-free supplement alongside a complete nutrition program because your plant already has adequate nitrogen

A 0-10-10 supplement isn't complete plant food and cannot promise flowers. Light, maturity, temperature, and existing soil phosphorus often matter more than adding a bloom booster.

Results you can see

Feeds foliage for deeper color and a brighter, more lively look.

Encourages fresh leaf and stem growth for a fuller, thriving plant.

Supports healthy, resilient roots that absorb nutrients more effectively.

Works for plants in their bloom stage

Roses
Dahlias
Hibiscus
Flowering Perennials
Container Annuals
Tomatoes
Peppers
Orchids

How to use

Watering can

1-2 tsp per gallon of water

Spring & Summer: apply once weekly · Fall & Winter: every 4-8 weeks
Hose-end sprayer

Set to 2 tsp setting

Spring & Summer: apply once weekly
Leaf misting (optional)

1 tsp per quart (32 oz) of water, spray on leaves

apply weekly

What's inside

The 0-10-10 ratio carries no nitrogen by design: nitrogen fuels leafy growth, and once a plant is established and entering its bloom stage, extra nitrogen pushes foliage at the expense of flowers. By supplying only phosphorus and potassium — 10% available phosphate and 10% soluble potash — this blend concentrates on flower formation and bloom quality without feeding more leaves. The phosphate drives bud and flower development, while the potash supports bloom size, color intensity, and your flowering plant's stamina through a heavy flowering push.

Beyond NPK: this is a focused bloom booster, not a full-spectrum feed, so it doesn't carry the calcium, magnesium, and micronutrient package of a complete fertilizer. It does include 1.0% sulfur, which supports the aromatic compounds behind flower scent, plus sea kelp (Ascophyllum nodosum) for natural growth compounds that aid nutrient uptake. Because there's no nitrogen or micronutrient content, use it to complement your regular feeding during bloom season rather than as a standalone fertilizer.

Label facts

NPK 0-10-10 with 1% sulfur.

Derived from kelp (ascophyllum nodosum), potassium phosphate, potassium sulfate.

Store cool and dark. Guaranteed 12 months from purchase; keeps up to 2 years.

Frequently asked questions

How often should I use bloom fertilizer?

Bloom Fertilizer is a supplement for the flowering stage, so it runs alongside your regular feed rather than replacing it. In spring and summer, apply once a week at 1–2 teaspoons per gallon of water, from a watering can or a hose-end sprayer on the 2 teaspoon setting. In fall and winter, ease back to every 4–8 weeks. Because the formula carries no nitrogen, keep your complete fertilizer going on its own schedule; Bloom Fertilizer adds the phosphorus and potassium for flowers while your flowering plant still gets nitrogen and micronutrients from that base feed.

What's the difference between bloom fertilizer and regular fertilizer?

Regular fertilizer carries nitrogen to drive overall growth, along with phosphorus and potassium. Bloom Fertilizer is 0-10-10: no nitrogen, just 10% available phosphate and 10% soluble potash, plus 1% sulfur and sea kelp. Nitrogen fuels leaves, and once a plant is established and entering its bloom stage, extra nitrogen pushes foliage at the expense of flowers. By supplying only phosphorus and potassium, the formula steers your flowering plant's energy toward bud formation and bloom quality. It’s used with your normal feed, not instead of it, since your plant still needs nitrogen to live.

Why is my plant all leaves and no flowers?

Usually too much nitrogen relative to phosphorus and potassium, which favors foliage over flowers. That’s the gap Bloom Fertilizer fills: with no nitrogen and 10% phosphate and 10% potash, it adds flowering support without adding more leaf growth. Flowering also depends heavily on light and maturity. Most flowering plants need full sun to bloom, and many won’t flower until they’re established, so a plant in shade or one that’s still young won’t be pushed into bloom by any fertilizer. Check that sunlight and plant age aren’t the real limits first.

Can I use this as my only fertilizer?

No. Bloom Fertilizer has no nitrogen and no calcium, magnesium or micronutrient package, so it isn’t a complete feed. Every plant needs nitrogen to grow, and one fed only on 0-10-10 would eventually run short and stall. It’s designed as a bloom booster for the flowering season, used alongside a balanced or nitrogen-containing fertilizer that covers your flowering plant's full needs, including any other TPS fertilizer. Use both, and let the complete feed do the everyday work while Bloom Fertilizer concentrates on flower formation and quality.

When will I see results?

On the next round of buds. Flowers already open won’t change, so Bloom Fertilizer is feeding the buds still forming: the phosphate supports bud and flower development, and the potash supports bloom size, color and your flowering plant's stamina through a heavy flowering push. During active bloom season, plants often respond within a few weeks with stronger bud set and better flower quality. The clearest results come over a full flowering cycle of consistent weekly feeding, and only when light and overall care already support blooming.

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