Welcome to the Alchimia Growshop Blog

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.

The great homogenization of modern Cannabis

An old-school grower analyzes why modern cannabis increasingly sounds like the same language: potency and aesthetics above diversity, THC as the sole metric, and an increasingly narrow genetic base. Against this homogenization, the rise of hash and interest in landraces are restoring value to difference.

Zalympix, the ultimate cannabis competition

Born in California, Zalympix has revolutionized the cannabis cup landscape with a format in which users themselves, through the famous judge kit, taste and score the samples from home.

Fertilizers to Start Growing Marijuana

Fertilizers are a determining factor in the success or failure of a cannabis crop, as they influence the crop's yield, but also the quality of the harvest. Discover the ideal fertilizers to get started easily in home cannabis growing.

Genetics for starting your breeding journey

Have you ever wondered what really lies behind your favorite varieties? Today we invite you to discover a handful of genetics perfect for taking your first steps in breeding and selection. We're not talking about creating the next commercial hit, but something much more beautiful: learning to look at your plants with different eyes. Will you join us?

Preventing Fungi and Pests in Outdoor Cannabis Cultivation

Discover how to prevent pests and fungi in outdoor cannabis growing. Learn why prevention is more effective than curative treatments, identify the main threats (aphids, spider mites, caterpillars, powdery mildew and botrytis) and explore cultural practices, beneficial microorganisms and preventive products such as neem oil, potassium soap and Bacillus thuringiensis to achieve a healthy harvest.

When to germinate cannabis seeds: May or June?

Do you think June is already too late to start your outdoor cannabis crop? Discover why germinating in summer is not only viable, but one of the best strategies of the year. Learn how sativas, vigorous hybrids and modern autoflowering varieties make the most of the heat, light and explosive growth of summer to achieve balanced, healthy and high-quality harvests.

Cannabis in the 2010s, from persecuted to revered

The 2010s changed everything for cannabis. Colorado and Washington legalised recreational use, CBD won over millions of people, and new genetics like Girl Scout Cookies and Gorilla Glue revolutionised cultivation. Modern extractions, dabbing and social media connected a global culture like never before. We look back at the decade that transformed marijuana forever.

American seed bank Solfire Genetics, a commitment to pheno hunting

Solfire Gardens is the seed bank from the Pacific Northwest that has won over growers worldwide with a clear philosophy: less quantity, more quality. Their obsession with phenotype selection and their complex, evolving terpene profiles make them a unique choice for those seeking genetics with real personality. Are you ready to discover them?

Exclusive seeds from Alchimia's 25th anniversary you can't miss

Discover the 7 exclusive seeds from Alchimia's 25th anniversary: limited editions from Philosopher Seeds, Sensi Seeds, Barney's Farm, BSF Seeds and Sweet Seeds. From Old School classics like Super Silver Haze, White Widow and Super Skunk to exciting new releases like Citrus Kiss, Tangie Jungle Juice, GrandDaddy Purple and Sweet Zuchi F1 Fast Version. Unique genetics you'll only find at Alchimia.

Discover Relentless Genetics, an American seed bank obsessed with quality

Relentless Genetics represents an approach to breeding that moves away from fast-paced production and embraces a long-term process built on observation, selection, and the constant pursuit of excellence. Their journey, from clandestine grows in the southern United States to their consolidation in Colorado, reflects a natural evolution within the modern cannabis world, where genetics has shifted from being a limited resource to a highly specialised field of development.

Outdoor marijuana growing for maximum yield

In this post we show you a simple way to grow outdoors so you can harvest large plants with the best quality marijuana and keep your stash full of buds all year round.

Cipher Genetics, the new American gem

Discover Cipher Genetics, the boutique seedbank from Chris Lynch (Compound Genetics) that is revolutionising the cannabis scene with cutting-edge Cali genetics. Explosive terpene profiles, massive trichome production and rigorous, passionate breeding define each of their varieties. Now available in the Alchimia catalogue: explore their most sought-after strains and get hold of them before they sell out.

James Loud Genetics and the revolution of modern breeding

We introduce you to James Loud Genetics, the American breeder who combines 25 years of experience, advanced tissue culture and independent analyses to offer you clean, stable American seeds with character. Discover the story, the philosophy and the rigorous laboratory work behind one of the most interesting projects on the current scene.