Cannabis Seed Banks for Colorado

Find quality cannabis seeds from trusted seed banks that ship to Colorado. We've researched the best options for reliability, genetics, and customer service.

Know Before You Buy

While home cultivation is legal in Colorado, seed purchasing exists in a legal gray area federally. Most seed banks ship discreetly as "collectibles" or "souvenirs." We recommend purchasing from US-based seed banks to avoid international shipping issues. Always stay within your state's legal plant limits.

Types of Cannabis Seeds

♀️

Feminized Seeds

Guaranteed female plants (99%+). No need to identify and remove males. Best for most home growers.

Best for: Most growers, especially beginners

⚡

Autoflower Seeds

Flower automatically based on age, not light schedule. Faster harvest (8-10 weeks total). Smaller but easier plants.

Best for: Beginners, small spaces, multiple harvests per year

🌱

Regular Seeds

Natural mix of male and female (roughly 50/50). Required for breeding. Generally more vigorous plants.

Best for: Breeders, experienced growers, phenotype hunting

💚

CBD Seeds

High CBD, low THC strains. Legal in more areas. Therapeutic benefits without strong psychoactive effects.

Best for: Medical users, those wanting less intense effects

Top Recommended Seed Banks

Our Picks

North Atlantic Seed Co

Recommended
(4.8)
Visit Site

US-based seed bank with fast domestic shipping and a massive selection of genetics from top breeders. Known for excellent customer service and discreet packaging.

Pros

  • +US-based with fast shipping
  • +Huge selection of breeders
  • +Accepts credit cards
  • +Excellent customer service
  • +Free seeds with orders

Cons

  • -Slightly higher prices
  • -Popular strains sell out fast
Shipping:2-5 days (US)
Payment:Credit Card, Debit Card, Cash, Money Order
Price Range:$$
FeminizedAutoflowerRegularCBD

Multiverse Beans

Recommended
(4.7)
Visit Site

Another top US-based seed bank known for their selection of craft genetics and responsive customer support. Great for finding rare and exotic strains.

Pros

  • +US-based with fast shipping
  • +Great selection of craft genetics
  • +Active community presence
  • +Generous freebies
  • +Accepts credit cards

Cons

  • -Premium prices on some strains
  • -Website can be overwhelming
Shipping:2-5 days (US)
Payment:Credit Card, Debit Card, Cash
Price Range:$$-$$$
FeminizedAutoflowerRegular

Mephisto Genetics

Recommended
(4.9)
Visit Site

Premier autoflower breeder known for exceptional quality. Their autoflowers rival photoperiod plants in potency and yield.

Pros

  • +Best autoflower genetics
  • +US-based store available
  • +Consistent, stable genetics
  • +Very generous freebies
  • +Cult following for quality

Cons

  • -Limited availability (sells out fast)
  • -Autoflowers only
  • -Drop schedule requires attention
Shipping:3-7 days (US store)
Payment:Credit Card
Price Range:$$-$$$
Autoflower

More Trusted Seed Banks

ILGM (I Love Growing Marijuana)

(4.5)
$$

Beginner-friendly seed bank with grow guides and guaranteed germination. Their own branded genetics are reliable and affordable.

FeminizedAutoflowerMix Packs
5-15 days (US)Visit Site

Seedsman

(4.4)
$-$$$

One of the largest seed banks in the world with thousands of strains from hundreds of breeders. Great for finding specific genetics.

FeminizedAutoflowerRegularCBDF1 Hybrids
10-25 days (US)Visit Site

Hembra Genetics

(4.6)
$$-$$$

US-based seed bank specializing in premium feminized seeds. Known for their curated selection and quality control.

FeminizedAutoflower
2-5 days (US)Visit Site

Best Strains for Beginners

Starting your first grow? These strains are known for being forgiving, resistant to common issues, and producing reliable results.

Northern Lights (Feminized)

Classic indica that's nearly indestructible. Compact plants, low odor, and forgiving of beginner mistakes.

Easy8-9 weeks flower

Blue Dream (Feminized)

Balanced hybrid that grows vigorously. Resistant to pests and mold, with excellent yields for beginners.

Easy9-10 weeks flower

Auto Zkittlez (Autoflower)

Easy autoflower with fruity flavor. Seed to harvest in 10 weeks, no light schedule changes needed.

Very EasyAutoflower

Frequently Asked Questions

Is it legal to buy cannabis seeds online?
Seeds exist in a legal gray area. While home cultivation is legal in Colorado, seeds are often sold as "collectibles" or "souvenirs." US-based seed banks have the lowest risk of shipping issues.
Should I start with feminized or autoflower seeds?
Both are great for beginners. Feminized seeds give you more control over timing and potentially larger yields. Autoflowers are faster and require less attention to light schedules. For your first grow, autoflowers are often easier.
How many seeds should I buy?
Consider your state's legal limits (3 mature plants per person in Colorado). Buy a few extra seeds since not all may germinate, and you might want variety. A 3-pack or 5-pack is perfect for most home growers.
What payment methods do seed banks accept?
US-based seed banks typically accept credit/debit cards and cash. International banks often prefer cryptocurrency or bank transfers. Avoid using PayPal as they prohibit seed sales.
How should I store unused seeds?
Keep seeds in a cool, dark, dry place. A sealed container with a desiccant packet in the refrigerator works great. Properly stored seeds can remain viable for 5+ years.

Ready to Start Growing?

Once you have your seeds, check out our complete growing guide for step-by-step instructions from germination to harvest.

Complete Growing GuideEquipment Guide