Similar to: JR Peters Jack’s Houseplant Special

Top Picks

White Flower Farm Fertilizer
Top Pick

Best bloom-boosting formula for gardeners wanting vibrant flowers and larger yields.

A potent, water-soluble solution designed to drive root development and maximize flower production. It provides a targeted nutrient boost that helps plants recover and thrive, making it a reliable choice for both ornamental gardens and edible crops.

Highly Concentrated

Bloom Booster

Root Support

Nutrient Rich

ICL Peters Cal Mag Special
Runner-Up

Best nutrient solution for professional growers managing peat-based ornamental crops.

This is the gold standard for growers battling soft water who need to keep plants compact and vibrant. By packing three types of chelated iron into a perfectly soluble formula, it trades the simplicity of all-in-one pellets for the precision control required to achieve professional-grade color and structural health.

Calcium & Magnesium

Compact Growth

Black Iron

Water Soluble

Best high-phosphorus fertilizer for maximizing cannabis and hemp flowering yields.

This high-phosphorus formula is the secret weapon for growers prioritizing heavy, dense yields during the critical flowering phase. Its clean, salt-free profile makes it incredibly gentle on delicate roots, though you’ll need to manage your own feeding schedule since it lacks the bells and whistles of all-in-one nutrient systems.

Bud Sizing

Easy Application

Micronutrients

Transplant Safe

Best high performance fertilizer for flower enthusiasts seeking maximum blooms.

Best nutrient supplement for serious gardeners seeking professional plant vitality.

Best nutrient supplement for gardeners preventing blossom end rot and tip burn.

Best calcium supplement for growers using two-part nutrient feeding systems.

Best nitrogen supplement for gardeners seeking vigorous, healthy plant growth.