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The Reference bank of growing systems, tips and techniques to get the most from our green hobby


The Basics

The simple basic facts about growing cannabis. It really isn't as difficult or complex as you might have read!

  • 35 topics
  • 185 replies
Which? Best Composts 2016 - last post by ragnar

Germination and Propagation

Cuts, grafts and seeds. Learn how to successfully start the journey.

  • 15 topics
  • 116 replies
Mulitple Strain Cuts into O... - last post by bigwilliebobby


The vegative phase of the cannabis lifecycle. Tips and techniques to make the most of this important stage of a plants life.

  • 3 topics
  • 22 replies
Vegetative growth - last post by Slippery


The flowering phase, how to sex, tips on feeding and anything related to the flowering stage of the cannabis lifecyle.

  • 4 topics
  • 79 replies
14/10,. - last post by Highasyalike

Harvesting and Curing

Learn when and how to harvest your plants and how to cure the finished goodies to get the best out of all that hard work

  • 14 topics
  • 219 replies
Harvest dry and cure. - last post by denots

AutoFlowering Cannabis

Tips, tricks and the lowdown on the fast developing world of Auto-flowering Cannabis Strains

  • 3 topics
  • 41 replies
flushing ya dope plants - last post by captain beefheart

Making Hash, Oils, Concentrates

How to turn your buds (and trim) into something special

  • 61 topics
  • 2,138 replies
Rosin? - last post by lefty

Advanced Growing Techniques

Learn and share advanced techniques and experiments for growing the 'erb

  • 14 topics
  • 436 replies
Making Fem Seeds. - last post by denots

Grow Room Design and all things DIY.

Grow room designs and builds, home made hydro systems, lights, fan silencers, . You made it? It goes in here.

  • 88 topics
  • 1,530 replies
multi light arrays! - last post by Stoney

Growing Cannabis Outdoors

A place for people to learn and share about growing outdoors. Guerrilla Growing, Back Gardens, Greenhouses, Polytunnels and Sheds.

  • 15 topics
  • 316 replies
Iv got a new toy - last post by Bubonik Chronic

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Disclaimer: You must be over 18 years old to view/use this website. T-G-C.nl does not encourage growing cannabis or possessing cannabis, Learning how to grow cannabis is purely for educational purposes. All information on this website is strictly for: Historical reference, Scientific reference and educational purposes. Please check the laws in your own country as T-G-C.nl is in no way responsible for repercussions of accessing the website. All information is stored on a secure server in Amsterdam. We advise all visitors against breaking the law.