Best Ertrag Indoor 2025

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Last Updated - 10.09.2025

Best Choice

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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Main highlights

Perforated Design The pouch features multiple perforations for gradual CO2 release.
LONG LIFE One bag can last for several weeks depending on the size of your cultivation.
EASY TO USE Simply place the bag near your indoor plants for a constant CO2 supply.
COMPACT SIZE Convenient size allows for placement in pots or small shelves.
CO2 bags: provides carbon dioxide for indoor plant growth.

33,00 €
02

BudGuru

BudGuru Fertiliser for Plant Growth, Indoor and Outdoor (3 x 1 Litre), Chemical-Resistant Scoop with Precise Scale, Dosing Aid for Easy Filling

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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

OPTIMAL NPK NUTRIENT BLEND Our carefully tuned formula provides the ideal balance of nitrogen, phosphorus and potassium that promotes healthy growth and lush blooms. Increase the yield, improve the taste of your plants.
IDEAL FOR INDOOR AND OUTDOOR GROWING Our all-in-one special fertilizer is perfect for growing plants indoors and outdoors. It supports both photoperiodic and autoflowering varieties, so that your plants can thrive anywhere and develop their full potential.
EASY TO USE FOR BEGINNERS AND PROFESSIONALS - Our fertiliser has been developed with experts from agriculture and experienced growers. With the enclosed fertilising scheme, the application is child's play. Whether a beginner or experienced grower - your plants are optimally cared for.
Pure organic and chemical-free: our fertiliser consists exclusively of natural ingredients and effective micro-organisms. It promotes the growth of your plants naturally, provides strong green, strong roots and lush, rich flowers.
Perfect for all growth phases: our organic special fertiliser provides your plants with nutrients optimally at every stage - from cultivation to growth phase to flowering.

24,72 €
03

Grow Expert

40 Pieces Plant Bender Angle Grow LST Clips for Low Stress Training - 90 Degree Plant Trainer & Plant Support for Efficient Bending - More Even Growth and Higher Yields (Pack of 40)

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9.4

Excellent

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Main highlights

STRONG AND DURABLE Made from durable material that can withstand the demands of growing plants
PROMOTES EVEN GROWTH Optimizes light distribution to support the growth of all plant parts
MULTIPURPOSE Great for use indoors and outdoors, suitable for beginners and experienced gardeners alike
Higher Yields - Low Stress Training (LST) allows you to maximize the yield of your cannabis plants
Easy to Use The 90 degree angle LST clips are easy to install and adjust without damaging the plants.

6,99 €
Value for Money

04

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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60% Off
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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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.

5,99 € 14,99 €(60% Off off)
05

CO2 Bag

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

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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

Perforated Design The pouch features multiple perforations for gradual CO2 release.
LONG LIFE One bag can last for several weeks depending on the size of your cultivation.
EASY TO USE Simply place the bag near your indoor plants for a constant CO2 supply.
COMPACT SIZE Convenient size allows for placement in pots or small shelves.
CO2 bags: provides carbon dioxide for indoor plant growth.

18,99 €
06

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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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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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

4,04 €
07

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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8.8

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 €
08

GREEN24

Cannabis Fertiliser Grow & Bloom Starter Kit Hemp Fertiliser Pro NPK for Growth Flower Yield, Quick and Easy for Harvesting, Hemp Indoor and Outdoor Grow (SET: Grow + Bloom)

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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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Main highlights

The matching soil for the cultivation and cultivation of cannabis and hemp is available as a substrate.
High-yield concentrate, can also be used for foliar fertilisation.
For strong plants, healthy buds and optimal flower formation.
Fast acting fertiliser for the growth phase and flowering phase.
Easy to use and sustainable effect.

18,95 €
09

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
8.6

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.
Main highlights

16,99 €