Welcome to the Alchimia Growshop Blog

What to do with the substrate after the outdoor season

Have you finished the outdoor season and don't know what to do with the soil? In this article we'll tell you why you shouldn't throw away used substrate or reuse it as is, and how to give it a second life. If you've grown in pots, we'll show you step by step how to regenerate it: sieving, salt washing, worm castings, aerating agents, amendments like bone meal or bokashi, and a good winter rest. If you've planted in mother earth, you'll discover how to protect and enrich the soil with green manures, mulching, compost and crop rotation. Prepare today the soil for your next harvest!

Breeder Banks, artisanal cannabis Seeds

Cannabis seeds from author banks come from independent breeders working with exclusive genetics, intense terpenes and limited batches. Discover Alchimia's selection.

How cannabis hormones influence growth and flowering

Discover cannabis hormones and how they affect growth, flowering, and plant health. Complete guide with practical applications.

Cannabis yogurt cake

Here we present a simple, easy, and quick space cake recipe: cannabis yogurt cake.

Pheno Hunting, how to find the plant of your life among a handful of seeds

Discover what pheno hunting is, why to do it, and how to select step by step the best phenotype among your seeds to preserve it as a mother plant.

History of Cannabis in India and Pakistan

Weed or hash? Discover the history of marijuana in India and Pakistan, its religious and traditional uses, and its legal status today.

Schwazzing: Extreme Defoliation of Cannabis

What is Schwazzing, where does it come from, when to apply it, step by step, advantages, risks and the mistakes to avoid with this intensive defoliation.  

Learn to grow Supersoil with Dogma Organics

  Discover Dogma Organics, the artisan Italian SuperSoil for watering with water only. We introduce you to their SuperSoil 4 Components, Root Connection, Top Dress Flo and Zeolita Pure10, and we explain how to combine them phase by phase, which format to choose and how to regenerate the substrate. Happy harvest!

Higher Heights Mendo, the artisanal seed bank from Mendocino that selects by terpenes

Higher Heights, the seed bank from Comptche, Mendocino: who Nate is, his craft philosophy, and the genetics that define his work.

The Trendiest Genetics of This Summer (2026)

The varieties that have been most popular this summer at Alchimia: triploids, purples, gas and candy profiles, XL citrus, and our exclusive 25th anniversary strains (2026).

Doja Pak Seed Bank, the American Premium Genetics Revolution

When someone talks about quality in the modern cannabis world, one name inevitably comes up: Doja Pak. It's no coincidence. Founded in 2020 by Ryan Bartholomew, this brand has quickly established itself as the absolute benchmark in luxury Californian genetics, and today we invite you to discover why Doja Pak has revolutionized the standards of the entire industry.

How to Make Static Hash, the Purest Form of Hashish

Discover static hash or static sift: what it is, how this electrostatic trichome separation technique came about, and how to make it at home step by step.

Umami Seed Co, the Californian seed bank that has turned flavor into religion

Umami Seed Co is a Californian seed bank founded in 2016 in Laguna Beach under the motto "Flavor > Everything": terpenes as the only selection criterion. Seeds tested against HLVD and validated by more than 200 growers, with over fifty awards, especially in extraction categories.

World Ayahuasca Forum 2026, the historic gathering comes to Girona

The World Ayahuasca Forum brings together indigenous leaders, researchers, and artists in Girona (September 11-13, 2026). We tell you about the program, speakers, tickets, and legal context.

Puppets Genetics, an Artisan Seed Bank from Barcelona

Today we present Puppets Genetics, a Catalan boutique seed bank with hybrids from their own crosses and short-batch production, with Rainbow Tangie as the mother line.

The 5 Most Potent Magic Truffles

We review the five most potent magic truffle varieties in Alchimia's catalog, and explain how to compare them.