Gen200 & Rhodos Plant Nutrients
The first, the best,
the original ‘OSA’
Gen200 was launched in 2012 with the introduction of Control, the Original OSA (SiOH4) Formula.
Conceived for the indoor cultivation of flowers and fruit, the benefits of our proprietary orthosilicic acid recipe were quickly embraced by home growers as well.
Gen200 Control supplies silicon as stabilised orthosilicic acid (Si(OH)₄), which plants take up directly: approx. 2.56% Si(OH)₄, dosed at just 15 ml per 100 L of water. Silicon strengthens the cell walls, for firmer stems and leaves and better tolerance of heat, cold and drought.
Concentrated vegetative fertiliser
Focused on the vegetative stage of plant development, Rhodos Grow is engineered to propel lush and vigorous growth. This high-performance formula delivers an optimal blend of nitrogen, phosphorous, and potassium, along with essential trace elements that support increased biomass, leaf development, and photosynthetic capacity. Whether you’re cultivating in or outdoors, Rhodos Grow ensures your plants have all the nutrients they need during the growth phase.
Concentrated base fertiliser
The foundation of the Rhodos line of powder nutrients, Rhodos Base is a comprehensive nutrient solution tailored to support plants throughout the plants entire life cycle. This versatile formula with a high level of nitrogen, ensures your plants have access to all the essential macro and micronutrients they require from seedling to harvest. Its carefully balanced composition encourages robust root development, strengthens plant structure, and enhances overall vitality, creating an optimal environment for plant development.
Concentrated flowering fertiliser
When it’s time for your plants to transition to the flowering and fruiting stages, Rhodos Bloom steps in to provide targeted plant nutrients that promote abundant and vibrant flowers. Enhanced with higher levels of phosphorous and potassium, it supports flower formation, fruit set, and resin production. Rhodos Bloom is the key to unlocking your plant’s productive potential, leading to superior yields and quality.
Gen200 Additives for every nutrient line
Complete your feeding routine with four liquid additives that work with Rhodos, Gen200 Control or any other fertiliser, in soil, coco and hydroponics.
Gen200 Grow Roots
Organic root stimulator with amino acids · 100 ml / 100 L
Gen200 CalMag+
Calcium, magnesium and nitrogen · 20–40 ml / 100 L
Gen200 Enzyme
Keeps the root zone clean · 50 ml / 100 L
Gen200 pH-
Food-grade pH down for your feeding water
Straightforward application
Ideal for all growing mediums and systems. Rhodos plant nutrients dissolve easily, ensuring a rapid uptake by your plants with minimal waste.
Become a Gen200 Rhodos Reseller
As a Gen200 Rhodos reseller or wholesale partner, you gain access to a proven product designed for modern cultivation needs, from commercial greenhouses to indoor grow operations.

