Superstarter 400G

• Promotes rapid root growth in seedlings, transplants and newly set shrubs through a high phosphorus formulation (P=52).
• Dissolves completely in water for immediate nutrient availability and fast uptake by developing roots.
• Apply via watering can or hose-end feeder for targeted delivery at establishment without disturbing soil.
• Compatible with slow-release fertilizers; use alongside controlled-release products to maintain ongoing nutrition.
• Water-soluble NPK 10-52-10 technical summary for early root development and improved nutrient access.
• Available in 400 g and 1.2 kg packs to match small-scale and larger establishment projects.

Garden Pro Superstarter 10-52-10 supplies a concentrated phosphorus dose to accelerate root development during early establishment. The water-soluble formula dissolves rapidly and releases nutrients for quick uptake by young roots, making it suitable for seedlings, transplants, container-grown plants and newly set shrubs and trees. Use at planting, transplanting or seeding to encourage root establishment and early vigor. Apply through a watering can or hose-end feeder to place nutrients directly at the root zone and avoid excessive surface runoff. The soluble nature ensures uniform concentration in solution for consistent application during establishment. Combine with slow-release or controlled-release fertilizers to provide immediate root stimulation without disrupting ongoing nutrient release. The product supports rapid root proliferation, improves early nutrient access and helps reduce establishment time across small-scale garden projects, nursery production and larger landscape installations. Choose 400 g or 1.2 kg packs to match project scale. Technical summary: NPK 10-52-10. Pack sizes: 400 g and 1.2 kg.