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GBK-Shop — Your Growshop for Indoor & Outdoor Growing: Expertise, Advice & Premium Equipment
GBK-Shop is more than just a store — we’re a growshop with passion, experience, and a clear mission: to provide you, the dedicated grower, with the best tools, the most relevant knowledge, and the friendliest advice. Whether you’re a beginner or a seasoned pro, whether you grow indoors or outdoors — here you’ll find high-quality products, well-thought-out complete solutions, and expertise spanning generations. Our assortment includes everything from grow boxes and grow LED lights to fertilizers, substrates, and climate control components.
As an established online growshop, we stand for premium brands, hands-on quality control, and confidential order processing — neutrally packed and discreetly shipped. At the same time, we warmly invite you to visit our showroom in Lüdinghausen, where you can touch, compare, and get personal advice on products. You’ll find our opening hours, contact details, and directions on the shop’s contact page.
Plants don’t thrive by chance — they need the right substrates, a balanced nutrient system, proper lighting, and a controlled climate. A specialized growshop brings together the products and know-how for these exact needs. We don’t just help you choose the right products — we also support you with setup, installation, and optimization, from the first germination to harvest.
To help you quickly find what you need, here’s a direct overview of our core categories:
- 🏠 Grow Boxes & Grow Tents — compact grow spaces & professional cultivation rooms.
- 💡 Lighting & Grow LED Lamps — full-spectrum LEDs, light sets, and accessories.
- 🌱 Fertilizers & Soil — nutrient systems, fertilizer kits, and growth media.
- 🌬️ Ventilation & Climate — exhaust systems, carbon filters, fans, and controllers.
- 🎯 Starter Kits & Grow Sets — complete kits for an easy start.
These categories form the foundation for nearly every grow project — we’ve linked to each area so you can get started right away.
A grow box is the centerpiece of most indoor setups. It provides a sealed, lightproof environment where you can precisely control temperature, humidity, and lighting. From compact 60×60 cm grow tents to spacious 300×300 cm systems, we offer robust models with reflective interiors, sturdy frames, and airtight zippers. Learn more in our Grow Boxes & Tents section.
- ✅ Advantages: Lightproof, full climate control, easy assembly
- 🔧 Tips: Look for stable frames, good internal reflection, and enough cable & air ports
Light is every plant’s energy source. Our range includes classic HID lamps and modern grow LED lights that are highly energy-efficient. LEDs offer many benefits: lower electricity costs, reduced heat output, and plant-optimized light spectrums. Explore premium models in our Grow LED Lighting section.
The right lamp depends on your grow area, budget, and goals. Our experts help you choose the optimal wattage, beam angle, and layout for even and efficient light distribution.
If you want to start growing quickly and safely, our grow box complete sets are the perfect choice. They combine tents, lights, exhaust systems, filters, fans, pots, and often fertilizers into one package — perfectly matched for efficiency. Find them in our Starter & Complete Set category.
Benefits: Time-saving, tested component compatibility, and great overall value. Our team ensures the set fits your grow area and plant type.
Air quality and circulation are crucial for healthy plants. In a closed grow box, you need to combine exhaust, filters, and fans properly so CO₂ is exchanged, heat dissipates, and odors are neutralized. Our Ventilation & Climate category includes powerful inline fans, silencers, carbon filters (e.g. Rhino, CAN), and matching installation kits.
- 📏 Choose your fan based on required airflow (m³/h)
- 🌿 Carbon filters neutralize odors — essential for discretion
- 🔄 Circulation fans prevent stagnant air and strengthen stems
A well-planned feeding schedule is key to strong growth and abundant blooms. GBK-Shop offers fertilizers from top brands (Advanced Hydroponics, Canna, Hesi, BioBizz, Plagron, and more), as well as complete feeding kits and individual recommendations.
We distinguish between growth fertilizers (high in N), bloom fertilizers (rich in P/K), and both organic and mineral systems. Many product pages include manufacturer feeding charts, complemented by our practical tips.
Choosing the right substrate affects water retention, aeration, and nutrient uptake. GBK offers classic grow soils, coco substrates, rockwool, perlite, and specialized mixes. Each substrate has its pros and cons — our selection is organized by application (pots, hydro, cuttings) so you can easily find the right one.
The right containers support strong root development. Square pots save space, fabric pots promote air pruning, and classic plastic pots are practical and affordable. We carry a wide range of sizes and materials.
You can only optimize temperature, humidity, CO₂, and light intensity if you measure them. Our shop offers hygrometers, thermometers, PAR meters, CO₂ sensors, and automation tools for climate and irrigation control. Take control of key parameters for consistently better results.
Hydroponic systems offer maximum control over nutrients and water delivery. At GBK, you’ll find complete hydro systems, reservoirs, pumps, tubing, and accessories. Properly set up, hydroponics saves water and allows for high yields with precise nutrient dosing.
Our team consists of active growers with real-world experience. We advise on setup sizes, lighting plans, feeding schedules, and troubleshooting (pests, deficiencies, climate optimization). Reach us by phone or email — and if you prefer a personal visit, our showroom in Lüdinghausen is open for you.
- Determine your available space (e.g. 60×60, 80×80, 120×120).
- Choose a suitable grow box and adequate lighting.
- Decide between soil or coco; for hydroponics, pick an appropriate system.
- Use complete sets for an easy start, or build your own setup with our guidance.
- Regularly measure your climate & EC/pH levels — measuring is the first step to control.
For ambitious growers, we offer professional components: full-spectrum LED plant lights with dimmable channels, smart climate controllers, CO₂ enrichment systems, and finely tuned feeding programs. As your project grows, we help you scale — from rack systems to commercial greenhouse solutions.
Cheap components may save money upfront — but in the long run, they cost yield and reliability. We focus on brands and products that are tested and proven. Investments in high-quality lighting, reliable ventilation, and trusted fertilizers pay off through better harvests, fewer failures, and lower maintenance.
Sustainability is important to us: discreet shipping, energy-efficient products (e.g. LEDs), resource-saving advice, and proper recycling guidance are all part of our standard. We promote eco-friendly alternatives and provide transparent information about material and energy use.
Which grow box size is right for me? It depends on your space, plant count, and goals (small harvest vs. max yield). 60×60 cm suits 1–3 plants, 120×120 cm for larger setups. Our experts can assist. 📏
Which LED is best for 60×60 cm? Full-spectrum LEDs between 80–150 W (check effective PPF & µmol/J) work best. Find suitable models in our Grow LED Lighting section. 💡
Do you ship discreetly? Yes — all packages are neutrally packed with no advertising on the box. 📦
We carry products from leading and emerging brands with high quality standards. Thanks to direct supply chains, we ensure genuine brand quality and proper support. Looking for specific brands? Just ask — we often have custom bundles and recommendations.
- Select your product and add it to the cart.
- Enter your desired shipping address (neutral packaging).
- Choose your payment method — we offer secure options.
- Receive your order confirmation & tracking. Our support is always ready to help via phone or email.
On the GBK blog, we share practical guides, user experiences, and product reviews to keep you informed. Our multi-generational experience flows into tutorials, setup guides, and troubleshooting manuals — perfect for anyone looking to expand their grow knowledge.
For commercial growers, we offer tailored consulting, supply chain support, and product solutions for scaled operations. From planning to harvest, we assist with bundled products, training, and service solutions.️
Visit our showroom (Olfener Str. 112, 59348 Lüdinghausen). Compare equipment, see components in action, and receive expert advice. We’re open Monday to Friday from 9:00 to 17:30 and one Saturday per month (usually the first). Current hours are always listed on Google. You can also reach us by phone at +49 2591 237 140. Personal advice combined with online convenience makes us your trusted grow project partner.
GBK is more than just a grow shop — we’re your partner on the journey of growing plants. With carefully selected products, expert advice, and a hands-on showroom, we provide everything you need for healthy plants and abundant yields. Start your project now: explore categories like grow boxes 🌱, grow LED lights 💡, or fertilizers & soil 🌸 — we’re here to help you every step of the way.
Your grow project is waiting! Browse our extensive range, take advantage of our expert advice, and start today with high-quality products for indoor and outdoor cultivation. 🛒✨
