Grow More® 6-30-30 Fertilizer — 25 lb Bag

High-Phosphorus Water-Soluble Bloom Fertilizer to Induce Bud Set, Intensify Color, and Maximize Flower Size

Grow More® 6-30-30 Fertilizer is a high-phosphorus, high-potassium water-soluble fertilizer formulated with a PK-dominant ratio that effectively signals flowering crops to initiate and maximize reproductive development. With a phosphorus-to-nitrogen ratio of 5:1, this formula applies significant PK pressure at the bloom stage — helping to induce bud set, drive the development of larger, more vibrantly colored flowers, and push flowering crops to their full yield potential at this critical growth phase.

Key Features & Benefits

• 6-30-30 NPK Ratio: High phosphorus and potassium with low nitrogen — the classic bloom-stage formula that directs plant energy toward reproductive development, bud initiation, and flower sizing rather than continued vegetative growth.
• Induces Bud Set: The high phosphorus content triggers the metabolic shifts associated with flower bud initiation, supporting earlier and more prolific bud set across a wide range of flowering crops.
• Intensifies Bloom Color: Elevated potassium supports the production of anthocyanins and other pigment compounds that give flowers their vivid, saturated coloration — improving both the visual quality of ornamental crops and the market appeal of flowering produce.
• Increases Flower Size: Phosphorus and potassium availability during bloom development drives cell expansion in developing flower tissue, resulting in larger individual blooms with improved substance and longevity.
• 100% Water Soluble: Dissolves completely at the recommended rate (1 teaspoon per gallon of water) with no residue, suitable for hand-watering, drip irrigation, and foliar spray application.
• 25 lb Commercial Bag: Large-format packaging for commercial flower, vegetable, and crop producers who require consistent, high-volume bloom-stage nutrition.

Who Should Use This

Grow More 6-30-30 is an ideal choice for commercial flower growers, greenhouse operators, and vegetable producers who need a reliable, effective bloom-stage fertilizer to maximize the quality and quantity of their flowering crops. It is particularly valuable for ornamental flower producers where bloom size, color intensity, and uniformity directly determine market value.

Compatibility

Dissolve at a rate of 1 teaspoon per gallon of water and apply as a soil drench, through drip irrigation, or as a foliar spray. Use as the primary or supplemental fertilizer during the bloom phase, transitioning from a higher-nitrogen vegetative formula as the first flower buds appear. Compatible with other Grow More water-soluble fertilizers and with standard nutrient programs for greenhouse and field production.

Frequently Asked Questions

When should I switch to the 6-30-30 formula in my feeding program?

Transition to 6-30-30 at the first signs of flower bud initiation — typically when the plant is shifting from producing primarily vegetative shoots to developing flower buds. Continue through the peak flowering period before transitioning to a finish formula in the final weeks before harvest or sale.

Is 6-30-30 essentially the same as a generic bloom booster?

The 6-30-30 ratio is one of the classic high-PK bloom formulas used across the horticulture industry. Its specific ratio — with equal phosphorus and potassium levels — makes it well suited for crops that respond strongly to both phosphorus-driven bud initiation and potassium-driven flower development simultaneously, which distinguishes it from formulas that emphasize one or the other exclusively.

Can 6-30-30 be used as a root drench in hydroponic systems?

Yes. Its high solubility makes it suitable for hydroponic reservoir use. Monitor EC carefully when adding 6-30-30 to an existing nutrient program, as the high phosphorus and potassium concentrations will raise EC significantly. Adjust your overall program to stay within target EC ranges for your specific crop.

Will using 6-30-30 too early stunt vegetative growth?

Applying a high PK, low nitrogen formula before plants have reached the appropriate developmental stage can slow vegetative growth and trigger premature flowering in some crops. Follow your crop’s specific nutritional schedule and transition to bloom formulas only after adequate vegetative development has been achieved.

How does this compare to Grow More Mendocino 0-37-37?

0-37-37 provides far more concentrated phosphorus and potassium with zero nitrogen, making it a high-intensity PK supplement for commercial high-yield programs. 6-30-30 provides a moderate nitrogen level alongside high PK, giving it broader applicability as a primary bloom fertilizer for growers who want PK dominance without completely eliminating nitrogen from the bloom-stage diet.