Plagron Royalmix - Premium Organic Pre-Fertilized Substrate

Grow organically, from the ground up. Plagron Royalmix is Plagron's premium, organic pre-fertilized substrate — a rich blend of carefully selected peat, perlite, and unique Plagron worm castings that gives your plants everything they need for up to six weeks of vigorous, natural growth.

Why Growers Choose Plagron Royalmix

Six Weeks of Organic Pre-Fertilization
Royalmix comes richly charged with organic, time-released fertilizer (NPK 5.5-11-5.5) that feeds your plants for up to six weeks. Because it's so heavily fertilized, we recommend flushing with water before use if potting very young plants, or waiting 1-2 weeks before transplanting.

Built for Root Development & Drainage
A carefully selected blend of peat varieties and a high percentage of perlite creates an airy, oxygen-rich structure. Roots get more room to develop, uptake of nutrients improves, and the risk of over-watering drops thanks to excellent drainage.

Genuinely Organic
Royalmix is suitable for organic cultivation, good for people, animals, and the environment. Rich worm humus supports vibrant soil life, helping your plants grow and flower naturally — which shows through in the quality of the final result.

Pairs Perfectly With Organic Liquid Feeds
Once the initial six-week charge tapers off, Royalmix responds beautifully to organic liquid feeding programmes for continued strong growth and flowering.

Trusted, Premium Quality
Royalmix is Plagron's flagship, premium substrate — rated 4.7/5 by growers for consistent, high-quality results.

📦 Please Note: Sample, 1L, 5L, 10L, and 20L sizes are carefully decanted from original manufacturer packaging into secure, unbranded packaging to offer flexible quantities for every project size. 50L options are supplied in the original sealed manufacturer bag.

Ideal For: Organic growers wanting a strong, natural start; flowering plants; anyone who wants weeks of worry-free feeding before needing to introduce their own nutrient programme.