
It Started at the Seed Bank of Holland.
REIZIGER’s roots trace back to the 1980s, to a remote 19th century mansion in Holland where the world’s first cannabis seed bank was born. There, legendary growers began testing, refining, and documenting nutrient recipes that would later shape modern hydroponics.Those early formulas formed the basis of REIZIGER—passed hand-to-hand among elite cultivators. Today, they live on in every bottle we make.
Crafted in Amsterdam. Chosen by Hydroponic Craftsmen.
Since 1984, REIZIGER has created fertilisers and additives that growers trust—formulated at the legendary Seed Bank of Holland and refined for those who view growing as a craft, not a trend.
Hydroponic fertilizers and additives for precision growers.
We produce ultrapure plant fertilisers and additives—designed to support every stage of growth, from rooting to bloom. Trusted by professional cultivators, boutique growers, and home enthusiasts alike, REIZIGER products are known for consistency, cleanliness, and craft-level performance.

ROOT BOOSTER
Tradition meets innovation.
Reiziger Root Booster uses revolutionary oligosaccharide technology to help protect against injury and save plants ensuring they are healthier, greener, more powerful and stronger.

GROW BOOSTER
Maximize your harvest.
A potent and effective natural liquid with the power to transform plants. In a short time, plant vigour is improved and lushness restored, rewarding growers with greater yields.

BUD BOOSTER
For crystal laden blooms.
Developed in Holland over 20 years ago for the commercial grower to help medicinal plants build extremely large, aromatic flowers indoors, outdoors or in the greenhouse, in hydroponics and soil.