The most important step is to verify that a seed bank ships legally to your state and backs its seeds with a germination guarantee. Reputable banks publish lab results, provide clear genetic lineage, and offer discreet packaging. Avoid any seller that cannot answer basic questions about breeder sources or storage conditions.

What to Look For

Legal Compliance and Shipping

Check whether the seed bank operates legally in your jurisdiction. Some banks only ship to medical cannabis patients, while others ship to any state where cannabis seeds are legal as souvenirs. Read the bank's shipping policy carefully. Look for stealth shipping options and tracking.

Genetic Transparency

Good seed banks name the breeder and provide the exact cannabis strain crosses. They list dominant terpenes and expected THC and CBD ranges. Avoid vague terms like "exotic" or "top shelf" without data.

Germination Guarantee

Many reputable banks guarantee 80% to 95% germination. Some replace non-germinating seeds if you follow their protocol. Read the guarantee terms before buying.

Customer Reviews and Community Reputation

Look for independent reviews on forums like Reddit or GrowDiaries. Avoid banks with a pattern of missing shipments or poor customer service. Third-party review sites can help, but watch for fake reviews.

Parameter Bands

Use these ranges as a benchmark when comparing seed banks.

  • Germination rate guarantee: 80% to 95% is standard for reputable banks.
  • Seed count per pack: typically 3, 6, 10, or 12 seeds. Single seeds are available but cost more per seed.
  • Shipping time: domestic banks deliver in 3 to 10 business days. International banks take 2 to 4 weeks.
  • Payment options: credit cards, money orders, bank transfers, and cryptocurrency. Some banks do not accept cards.
  • Discretion: plain packaging with no cannabis branding is expected. Some banks include a freebie or crush-proof container.

Common Pitfalls

  • No physical address or contact info: A legitimate seed bank lists a business address and a phone number or live chat.
  • Unrealistic claims: Avoid "100% germination" or "guaranteed 30% THC" claims. Cannabis is a plant.
  • No germination guarantee: If a bank refuses to replace dud seeds, consider it a red flag.
  • Pressure to buy: Limited-time "exclusive" drops can be marketing hype. Take your time to compare.
  • Poor seed storage: Seeds should arrive in airtight containers with desiccant. If they look dry or cracked, germination may fail.

FAQ

Are cannabis seed banks legal in the United States?

Cannabis seeds are legal to possess in many states but federally illegal if they contain more than 0.3% THC. Hemp seeds with low THC are legal under federal law. Legality depends on your state and how you use the seeds. Consult a local attorney if unsure.

How do I store cannabis seeds after purchase?

Store seeds in a cool, dark place inside an airtight container with a silica desiccant packet. Refrigeration can extend viability for several years, but freeze only if you prevent moisture.

What if my seeds don't germinate?

Contact the seed bank immediately. Provide photos and a description of your germination method. If the bank has a guarantee, they will typically replace the seeds or refund your money.

Should I buy from a domestic or international seed bank?

Domestic banks ship faster and avoid customs issues. International banks may offer rarer genetics, but shipping is slower and riskier. Start with a domestic bank that ships to your state.