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Best Ertrag Indoor - Holiday Sale

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Last Updated - 16.12.2025

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01

CO2bag

CO2BAG® XL for Effective Growth | Improves Taste, Colour & Yield | Compact & Maintenance Free for Indoor Growing and Greenhouses - Pack of 2

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9.8

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Your satisfaction, our promise: We are convinced of the quality and effectiveness of our CO2Bags. That's why each product comes with a 100% satisfaction guarantee that allows you to grow safely.
OPTIMAL AIR DISTRIBUTION Since CO2 is heavier than air, our recommended placement over your plants ensures optimal gas distribution, so that the important CO2 naturally falls down and enriches the entire growing space.
Increase plant growth & yield: Unleash the full potential of your plants with a constant CO2 intake that results in faster growth rates, accelerated fruit ripening and significantly larger, healthier yields.
Effortless & Safe CO2 Boost: Enjoy hassle-free setup without complicated equipment, electricity or maintenance. Simply hang the bag and let it work its magic to ensure a safe environment for you and your plants.
COMPACT, AFFORDABLE & EFFECTIVE Get premium carbon enrichment in a small, budget-friendly package. Each CO2bag XL is perfectly suited for areas up to 3 m² and delivers strong results without the scope or cost of conventional CO2 systems.

35,00 €
02

CO2bag

CO2bag XL for Effective Growth | Improves Taste, Colour & Yield | Compact & Maintenance Free for Indoor Growing and Greenhouses

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9.6

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Your satisfaction, our promise: We are convinced of the quality and effectiveness of our CO2Bags. That's why each product comes with a 100% satisfaction guarantee that allows you to grow safely.
OPTIMAL AIR DISTRIBUTION Since CO2 is heavier than air, our recommended placement over your plants ensures optimal gas distribution, so that the important CO2 naturally falls down and enriches the entire growing space.
Increase plant growth & yield: Unleash the full potential of your plants with a constant CO2 intake that results in faster growth rates, accelerated fruit ripening and significantly larger, healthier yields.
Effortless & Safe CO2 Boost: Enjoy hassle-free setup without complicated equipment, electricity or maintenance. Simply hang the bag and let it work its magic to ensure a safe environment for you and your plants.
COMPACT, AFFORDABLE & EFFECTIVE Get premium carbon enrichment in a small, budget-friendly package. Each CO2Bag XL is perfect for areas up to 3 m² and delivers strong results without the scope or cost of conventional CO2 systems.

18,99 €
03

XHTXHT

XHTXHT 150 Plant Training 100 Plant Benders 50 Plant Clips, 90 Degree Low Stress Training Clips, Plant Trainer for Higher Yields & Healthier Plants Indoor/Outdoor with Colour Coding

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9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Widely Application The stem supports for plants are suitable for shaping branches of various plants, including tomato shoots, fruit trees, flowers and horticultural plants, they can be used in growing tents, greenhouses and outdoor gardens. Our versatile clips are perfect for all your plant growing needs.
The package includes: you will receive 100 pieces plant benders and 50 pieces plant clips.lst clips plant cannabis, the set contains two different shapes of curved clips and two different sizes of plant clips, which make it easy to visually identify different plants or areas in a large garden. The quantity is enough to meet your daily plant training and any replacement needs.
Practical Design These 90 degree plant stem benders are designed with curved edges and an extra deep groove to prevent the stem from slipping off without hurting the plant. The perfect angle is designed to reduce the strain on the plant and in some way prevent broken trunks. The plant clips can gently attach plants to sticks, wire or branches, good for securing and supporting sagging plants to grow.
Modified Growth Our plant training clips can change the direction of the trunk, so that the plants get more air and light, and promote air circulation. Just gently bend the plant back and forth and you can change the shape of the plants. You can train your plants to become healthier overall and bring more yield.
Durable Materials Our plant clips are made of durable plastic, which is not easy to rot, age, discolor and crack, which ensures long service life and suitability for plants of different sizes. The bright colours green, red and purple ensure that you can easily find them between plants. They are reusable for indoor and outdoor plants.

3,99 €
Value for Money

04

Compo

COMPO Grow Organic Booster - Practical Build-Up Treatment for Special Crops, Supports Growth, Fertiliser for Indoor and Outdoor Use, Organic, 30 ml (Pack of 6)

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9.3

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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The following information applies to each unit per pack
Simple and safe construction treatment to support growth
Les informations ci-dessous s'appliquent à chaque unité du pack
Good addition to the phase fertilisers
Ensures perfect bud and flower formation
Ampoule packaging is made from 80% old plastic; cardboard made from 96% recycled paper
100% natural, vegan ingredients

4,62 €
05

SGERUFZ

SGERUFZ 20 Pieces Grow LST Clips Plant Bender Angle for Low Stress Training - Plant Trainer & Plant Support for Efficient Bending - More Even Growth and Higher Yields (90 Degrees)

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9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

USER FRIENDLY The 90 degree angle LST clips allow for easy application and adjustment without harming the plants
UNIVERSAL USE Perfect for use indoors and outdoors, suitable for gardeners of all levels of experience
PREMIUM MATERIALS Made of durable material that can withstand the demands of daily plant growing use
MAXIMUM YELDS Use Low Stress Training (LST) techniques to significantly increase the yield of your cannabis plants
EVEN GROWTH Optimizes light distribution to promote balanced growth of all plant parts, ideal for indoor growing

4,59 €
06

Grow Expert

30 Plant Bender Grow LST Clips | 0-180° Angle Continuously Adjustable Plant Clips for Healthy Growth & Maximum Yields | Plant Training, Branch & Trunk Support for Indoor & Outdoor (Pack of 30)

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9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Versatile and easy to use – whether tomatoes, cucumbers, vines or cannabis plants: the plant clips can be attached in seconds and reliably stabilise even heavy shoots
PREMIUM QUALITY & DURABLE - Made from durable, high quality plastic for years of use. Reusable, weather-resistant and stable - ideal for indoor and outdoor growing
Healthy growth and higher yields - Low stress training (LST) ensures even light distribution, strong side shoots and more flowers/fruits. Increase your harvest without hurting the plant
Continuously adjustable 0-180° - Our innovative plant benders are freely adjustable and offer maximum flexibility. Whether gentle 10° or complete 180° angle: adjust the growth individually to each plant
3 sizes in the set (S/M/L) - Set of 30 includes: 10 x 3 cm, 10 x 4 cm, 10 x 5 cm plant trainers. Perfect for small cuttings to strong main shoots - one set for all stages of growth

9,99 €
07

Grünerdaumen Verlag

Das 1x1 des Cannabis-Anbaus - Das Praxisbuch: Von der Saat bis zur Ernte: Bewährte Methoden für den erfolgreichen Indoor- und Outdoor-Anbau von Cannabis - für maximale Erträge
8.9

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
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16,99 €
08

Independently published

Cannabis Anbau Buch: Cannabis anbauen leicht gemacht - Anfänger Guide für den besten Ertrag, schnelles Wachstum und die höchste Qualität Deiner Pflanzen
8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
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14,95 €
09

UP NUTRIENTS

UP NUTRIENTS ALL IN ONE Cannabis Fertiliser 250 ml | Liquid Organic NPK 5 1 5 Fertiliser for Growth & Flowering - Complete Solution for Hemp Indoor Outdoor - Organic, pH Stable, High Yields

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8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

[Without heavy metals] Free from heavy metals and chemicals, ALL IN ONE promotes responsible agriculture that respects the biodiversity of the environment. It is rich in humic and fulvic acids that improve nutrient absorption, resulting in larger plants and tastier, larger fruits
[Organic production with NPK 5 - 1 -5] All in one from Up Nutrients is the most comprehensive product on the market, with a fully optimised formulation for the growth of your plants, from seed germination to flowering
[100% organic] At Up Nutrients, we attach importance to the highest quality of our fertilisers, so our ALL IN ONE is certified by ECOCERT and complies with the European regulation CE 2092/91. Our organic fertiliser is made exclusively from fermented plant materials, which ensures pure and chemical-free cultivation
X4 more concentration: Our all-in-one is four times more concentrated than other fertilisers, thanks to the rich formulation we have developed and which provides a wealth of micro and macronutrients for your plants. So we guarantee the best possible growth of your plants and the maximum taste
Discreet shipping: Our shipments are sent discreetly and safely. We protect your privacy, so you don't have to worry
All in one: With the all-in-one from Up Nutrients, you can offer your plants everything they need from root growth to flowering. You start with 2 ml and increase the dose later to up to 4 ml per plant. In addition, a dispenser is included in the bottle to make the application even more convenient

9,95 €
10

lohill

Lohill Scrog Plant Net 100 x 100 cm for Climbing Plants, Cucumbers, Greenhouse - Elastic Trellis Net with 4 Hooks

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8.5

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

️STURDY SUPPORT SYSTEM: Our trellis netting features small lattice structures that create a stable support system for your plants, ensuring durability and reliability in supporting heavy climbing plants.
️PROMOTES HIGH YIELDS This trellis design promotes high yields of fruits and buds by allowing plants to grow vertically and use available space efficiently while providing ample space to prune branches and harvesting fruit.
️Elastic trellis net: Our trellis net is made of high quality polyethylene and rubber material. It is not only sturdy and durable, but also has high elasticity and toughness. Due to the good load capacity, it also has soft properties that can protect the soft shoots and stems of plants and prevent plants from being cut.
️EASY INSTALLATION Each package contains 1 elastic grid net along with 4 hooks for easy installation. The S hooks are made of rust-proof material, which can be used for a long time.
️Compatible with growing tents: grow accessories indoor, grow tent plants tent grow tent grow tent grow tent growth tent 100 x 100 accessories. Our flexible net can be used with grow tent and plant light, which makes plants evenly exposed to the light and grow more lush.

13,88 €