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Winter Essentials & Accessories

Enter a deGet your grow room winter-ready with our Winter Essentials & Accessories collection, featuring high-performance grow room heaters tailored for hydroponic environments.

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LightHouse Ecoheat Tube Heater
From £26.00
Large Display Hygro-Thermo HTC-1 & HTC-2
From £8.50
Heated Electric Propagators
From £38.55
Grow Warm Oil Radiator
From £35.00
Save £15.00
2KW Fan Heater
£49.95 £34.95
Shedmates Wooden Thermometer
£3.00
G.A.S Enviro Controller V2
£310.00
VitaLink Heat
From £23.95
Evoponic Liquid Heat - 250ml
£25.00
LightHouse Wireless Themostat
£32.00
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New Hydroponic Arrivals

Check out the latest hydroponic systems, nutrients, and accessories—handpicked to boost your grow. New arrivals, top performance.

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Maxibright Varidrive 360W LED
£120.00
Save £40.00
Cyclone Silent Inline Fan 4
£80.00 £40.00
Save £40.00
Cyclone Twin Speed Fan
From £30.00
Save £100.00
Ostrich Floor Fan
£170.00 £70.00
Save £115.00
Cyclone Fan & Filter Extraction Kits
From £45.00
Budplus ALL MIX+
£14.95
Budplus Coco 70+30
£13.95
Budplus Coco 50+30+20
£14.95
Budplus 100% coco
£12.95
Gorilla Pro Flexi Tank
From £41.95
White Floor Secure Roll
From £30.95
Milwaukee EC Pen C66
£40.00
Skyhigh Elevate RTU Spray
£20.00
Save £60.00
Kaizen Klimate Controller Z Series
£350.00 £290.00
Lava Rocks 20KG
£25.50
Grow Bitz Humidifer 23L
£180.00
Plagron Power Buds
£41.50
Dosaline Surge Pro
From £55.95
Dosaline Grow
From £25.95
Dosaline Base
From £25.95
Cali Touch 50ml
£94.00
Essentials pH Meter
£48.00
Grow Genius Plant Wash Concentrate
From £20.00
Aquadrive Submersible Water Tank
From £65.00
Advanced Nutrients Coco Cultivator
From £14.00
Kaizen Klean - Gingerbread
From £13.50
Pipeline Flexi Tank
From £39.00
Grow Bitz Hose Connector Set
£2.50
Purp Booster
£13.50
Natural Mystic Resin Rise
£16.00
Natural Mystic Terpene Rise
£16.00
Natural Mystic Green Up
£11.00
Ecothrive Soil Food
From £15.00
Save £3.00
Kaizen Elite 70/30 ALLMIX 50L
£13.00 £10.00
Kaizen Klean - Lemon Sherbert
From £13.50
Kaizen Klean - Cherry
From £13.50
Kaizen Klean - Fresh Linen
From £13.50
Alien EasyFeed Module With Pot
From £29.00
Supernatural Bud Blaster
£95.00
G.A.S. EC 1 Controller
£100.00
Save £2.50
Kaizen ALLMIX 50L
£12.50 £10.00
Bluelab OnePen™
£230.00
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Monthly Offers

Fresh discounts on top grow gear, nutrients & accessories. Limited time only!

See All
Save £15.00
2KW Fan Heater
£49.95 £34.95
Save £115.00
Cyclone Fan & Filter Extraction Kits
From £45.00
Save £40.00
Cyclone Twin Speed Fan
From £30.00
Save £6.95
Moonshine Sunshine Foliar Feed - 1L
£21.95 £15.00
Save £40.00
Cyclone Silent Inline Fan 4
£80.00 £40.00
Save £20.00
Kaizen Klean 20L
From £90.00
Save £100.00
Ostrich Floor Fan
£170.00 £70.00
Save £60.00
Kaizen Klimate Controller Z Series
£350.00 £290.00
✅ Added to basket

Hydroponic blog posts

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The Kaizen Klimate Controller – Precision Climate Control for Serious Growers

The Kaizen Klimate Controller – Precision Climate Control for Serious Growers

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.

Tips For Perfect Seed Germination And Propagation Of Clones

Tips For Perfect Seed Germination And Propagation Of Clones

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.

The Importance Of Using CalMag Supplements

The Importance Of Using CalMag Supplements

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.

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