Holland Horticulture

In the world of horticulture, guesswork is the enemy of greatness. If you’re still juggling separate timers, basic thermostats, and CO₂ monitors, you’re leaving yield on the table. The Kaizen Klimate Controller isn’t just a tool — it’s your grow room’s central intelligence system, built for serious cultivators who demand consistency, accuracy, and performance.

If you’re aiming for a bountiful Christmas harvest, the countdown has begun and with just under 100 days to go, now is the perfect time to start germinating seeds or rooting your clones. At Holland Horticulture, we help growers across the UK get the most out of every grow cycle with trusted advice and proven products. Whether you grow in soil, coco, or full hydroponic systems, this guide walks you through how to successfully propagate seeds and cuttings for a productive and healthy crop.

Calcium and magnesium are two of the most important secondary nutrients in hydroponics and soil growing. While often overlooked, they’re vital for plant strength, nutrient uptake, and chlorophyll production. Their availability is largely influenced by the hardness of your tap water, so supplementing correctly with CalMag is essential for achieving strong, healthy crops and bigger harvests.