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Seed information for the United Kingdom

Find the right seeds for your conditions.

Compare seed packs, regional pricing and detailed strain information. Start with your climate, available space and local rules.

Compare growing conditions

Climate categories describe conditions, not legal eligibility. Match the catalogue information to your own site and local rules.

The northern calendar

Northern seasons run from spring in March–May to autumn in September–November. Timing varies by latitude, local weather and site.

Open the planting calendar →
MarSow AprSow MaySow JunVeg JulVeg AugFlower SepHarvest OctHarvest NovHarvest

Practical, stage by stage

Know what comes next, from seed to harvest

Follow the outdoor season through five clear stages, compare photoperiod and autoflower timelines, and keep the numbers that matter in one place.

Photoperiod Autoflower
Explore the complete grow guide →

From the grow guide

Regional articles covering seeds, seasonal questions and strain information.

All guides →
Deep purple cannabis buds and purple-tinged leaves on a mature plant in soft overcast light, with a damp brick wall blurred behind.

Ten Notable Purple Cannabis Varieties

Why some cannabis turns purple, where the purple lines come from, and ten notable varieties from our collection, from Purple Kush and Granddaddy Purple to London Pound Cake.

Illustrative still life of three terracotta pots holding dark compost, coco coir and clay pebbles on a greenhouse bench.

Soil, Coco and Hydro: Growing Media Explained

A descriptive guide to soil, coco coir and hydroponic media, how each material behaves and why horticulture uses all three.

Illustrative autumn table scene with a notebook, dried plant stems, seed envelopes and a cup of tea beside a rain-streaked window.

End-of-Season Review: Reading a British Growing Year

How gardeners and plant enthusiasts look back on a British season, from weather records and plant observations to the patterns worth noting.

Illustrative botanical still life of cannabis flowers, a small dish of seeds and paper envelopes on a wooden table.

Breeding Basics: Where Cannabis Seeds Come From

A plain-English introduction to cannabis reproduction, inheritance and the seed types found in modern collections.

Regional seed information, clearly explained

Start with the grow guide, then check the rules that apply where you live.