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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!

  • 40 topics
  • 240 replies
Which? Best Composts 2016 - last post by Neo

Germination and Propagation

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

  • 19 topics
  • 215 replies
Old seed germination sugges... - last post by duke


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

  • 5 topics
  • 30 replies
Vegging in doors for outdoo... - last post by Afton


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

  • 7 topics
  • 178 replies
Culling The Herd - last post by Afton

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

  • 16 topics
  • 256 replies
Top Curing Tip! - last post by Dex

AutoFlowering Cannabis

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

  • 6 topics
  • 74 replies
dwarf autos? - last post by THC F13ND

Making Hash, Oils, Concentrates

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

  • 74 topics
  • 2,667 replies
What do I do with this now? - last post by Stoney

Advanced Growing Techniques

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

  • 22 topics
  • 348 replies
Marijuana Chemistry - by Mi... - last post by Anonymiss

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.

  • 122 topics
  • 3,091 replies
wi fi range extender help p... - last post by Anonymiss

Growing Cannabis Outdoors

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

  • 17 topics
  • 348 replies
Plants (and other organic m... - last post by Petal

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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 All information on this website is strictly for: Historical reference, Scientific reference and educational purposes.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.