Critical Mass Auto Seeds

Shipping info

Various shipping options & lost mail replacement.

USA customers spend over $120 to get free tracked shipping. Tracked delivery costs $12 for orders under $120.

Non USA customers - get free standard shipping on orders over $65. Orders over $115 get free Tracked shipping.

Usually seeds arrive within ten days. Did not receive your seeds? We will happily replace your seeds. See FAQ

• EU  3–5 days
• USA & Canada 6-10 days
• Rest of the world 7–10 days

Why choose us?

We have been in the business for over 15 years, this has helped us build a relationship with other big brands and breeders in this space. We can bring you the best marijuana seed discounts you can find on the web!

Where else will you find a deal like ours?

• Buy 1, get 1 FREE
• Lost mail replacement

If you have any questions, do not hesitate to contact us!

Choosing seeds

Feminized seeds
When given less than 12 hours of light every day, feminized seeds bloom and produce weed. Gather either in the fall outside or indoors after around 15 to 20 weeks. Feminized strains are used by beginners & experienced growers and produce higher-quality buds than auto-flowering strains.

Automatic seeds
Easy to grow and simple plants can be cultivated from auto-flower seeds in just 10 to 14 weeks before they are ready to be picked. Fantastic for first-time cultivators, limited harvesting areas, and seasonal yields.

How to germinate

To ensure germination, immerse the seeds in a glass of water for at least 12-72 hours while keeping them in the dark at room temperature. When the whitetail appears, plant your seeds 1/2 inch deep in the soil or another medium that has been moistened. You should see a seedling emerge within 2 days after planting. Seedlings thrive in bright, sunny conditions (21°C to 23°C)

*Please Check Legality In Your Own Region.