Cannabis Seeds in Washington
The Evergreen State looks like a grower’s dream on paper – lush landscapes, long summers, and a cannabis culture that’s been legal for over a decade. But Washington plays by its own rules. While cannabis laws here are generally relaxed, home cultivation is still a tightly controlled privilege. Below is a clear, up-to-date look at marijuana seeds in Washington, who can grow them, and what the local climate demands.
Is it Legal to Buy Cannabis Seeds in Washington?
Cannabis seeds in Washington are legal to buy and possess. Any adult 21 years or older can legally purchase and own weed seeds under Washington law. State law does not treat seeds differently from other cannabis products when it comes to possession.
Can You Grow Cannabis in Washington?
This is where things tighten up. Recreational cannabis cultivation remains illegal in Washington. Adults over 21 may buy cannabis – but growing it at home without medical authorization is still prohibited.
Medical marijuana seeds, however, are a different story. Registered medical cannabis patients listed in the state’s authorization database may legally cultivate cannabis for personal medical use. Registered patients may grow up to six plants at home. Higher limits require explicit medical authorization and state approval.
Best Cannabis Strains to Grow in Washington
Now to the best part! Here, we’ve listed the best cannabis strains suitable for outdoor growing in Washington that will thrive in this area.
Disclaimer: Please note that experiences are subjective and should not be seen as guaranteed. Cannabis products should be consumed responsibly and in moderation. Please be mindful of your tolerance levels and consult a healthcare professional if needed.
Grandmommy Purple (Herbies Seeds)
- Photoperiod
- 400 - 500 g/m² indoors
450 - 550 g/plant outdoors - An ecstatic must-have
Grandmommy Purple is an Indica-dominant hybrid that was made by crossing Big Bud with Purple Urkle genetics. It’s one of the most potent strains available in our catalog, with THC content that can reach up to 33%. The buds come with a pungent aroma and flavor of sweet berries. The flowering period finishes after just 60 days, leaving growers with an average yield of 1.6oz/ft2 (500g/m2) if grown indoors and up to 19.4oz (550g) per plant outdoors.
Californian Snow Auto (Fast Buds)
- Autoflowering
- Today is the best day
- 400 - 550 g/m² indoors
50 - 250 g/plant outdoors
Californian Snow Auto is a Sativa-dominant hybrid and a crossbreed of an unknown Californian strain with Canadian Ruderalis. This strain comes with 23% THC. The flowers have a citrusy scent and sweet, candy-like flavors. Californian Snow Auto has a short flowering time of 70 days, leaving growers with yields that can reach up to 1.8oz/ft2 (550g/m2) if grown indoors, and anywhere between 1.7-8.8oz (50-250g) if grown outdoors.
Godzilla Cookies Auto (Herbies Seeds)
- Autoflowering
- Hours of belly laughs
- 450 - 600 g/m² indoors
Godzilla Cookies Auto is a balanced hybrid made by crossbreeding the GG#4 Original Glue phenotype and Girl Scout Cookies. This highly potent strain comes with 27% THC. Gorilla Cookies Auto has an amazing smell and taste of cookies and diesel with citrusy undertones. Plants reach full maturity after 75 days of flowering, producing average yields of 1.9oz/ft2 (600g/m2).
Northern Lights 10 of 10 (Seedkeepers)
- Photoperiod
- Dreamlike calm
- 500 - 600 g/m² indoors
700 - 800 g/plant outdoors
Northern Lights 10 of 10 is an Indica-dominant hybrid bred from classic Northern Lights genetics crossed with a secret hybrid. This strain stands out for its extreme potency, with THC levels reaching up to 35%, making it one of the strongest options available. It flowers quickly in just 50-55 days and produces dense, resin-heavy buds with earthy, citrus, and subtle berry notes. Indoor yields reach 1.6-2oz/ft² (500-600g/m²), while outdoor plants can deliver 1.5-1.8lbs (700-800g) per plant.
Gummy Skunk Fast Version (EGS)
- Photoperiod
- Blissful release
- 550 - 650 g/m² indoors
650 g/plant outdoors
Gummy Skunk Fast Version is a fast-flowering hybrid bred from Early Skunk, Northern Lights, and Ruderalis, designed for easy cultivation in cooler climates. With 27% THC, it delivers an upbeat cerebral lift that gradually settles into calm relaxation. Flowering wraps up in 55-60 days, making it ideal for short summers. Indoor yields reach 1.8-2.1oz/ft² (550-650g/m²), while outdoor plants can produce up to 23oz (650g) each. Pine-forward aromas with classic skunk notes round out the experience.
Original Auto OG Kush (Fast Buds)
- Autoflowering
- Overwhelming relaxation
- 450 - 550 g/m² indoors
50 - 150 g/plant outdoors
Original Auto OG Kush is a mostly Indica autoflower (around 80% Indica) prized for its heavy effects and classic Kush character. With THC levels reaching up to 23%, it delivers a slow-building, body-focused high that leans toward deep relaxation and sleep. Flavors are rich and creamy, blending citrus, pine, and earthy diesel notes. Indoors, yields reach 15-19oz/m² (450-550g/m²), while outdoor plants produce up to 3oz (100g) each. Its ease of growth and strong resistance to fungi make it beginner-friendly.
Gorilla Purple Autoflower (EGS)
- Autoflowering
- Cerebral and physical
- 500 - 550 g/m² indoors
100 - 150 g/plant outdoors
Gorilla Purple Autoflower is a balanced hybrid created by crossing Gorilla Glue #4 with Purple Punch, combining power with flavor in an easy-to-grow package. With THC levels reaching 25%, it delivers a bright cerebral lift that smoothly melts into euphoric body relaxation. The full cycle runs 70-90 days from seed to harvest. Indoor yields reach 1.6-1.8oz/ft² (500-550g/m²), while outdoor plants produce 3.5-5.3oz (100-150g) each. Sweet, fruity aromas with earthy undertones complete the appeal.
Disclaimer: Before purchasing and growing cannabis seeds, ensure that cannabis cultivation is legal in your region. Prior use consult your medical adviser.
What to Consider When Buying Weed Seeds in Washington
Cannabis laws are very relaxed in the state, but recreational cannabis growing is still prohibited, so growers have to take precautions to avoid any trouble. Because the climate in Washington is not the driest, choosing the right strain will play a big role in order to get satisfying results. Stick with us to learn more about the climate in this area and the best strains for it.
Climate in Washington
The Evergreen State is located in an area with a wet climate. Because of the high moisture in this area, growers need to pick strains that are resistant to mold, cold, bacteria, and diseases that flourish in wet conditions. Temperatures that are suitable for growing last from May to early September – therefore, growers should choose autoflowering and quick Indica-dominant photoperiod strains that will finish flowering before temperatures drop.
Disclaimer: Please note that only licensed medical patients are permitted to cultivate cannabis. Growing cannabis for recreational purposes is illegal in Washington. Please check local laws before purchasing or cultivating cannabis seeds.
Where to Buy Cannabis Seeds in Washington
For those seeking top-quality cannabis seeds with a 100% germination guarantee, check out our catalog at Herbies’ seed bank. Here, you can find top-notch cannabis seeds for sale in Washington that are made by experienced world-renowned breeders. If you need any help with your purchase, our 24/7 customer service will help you out with all your questions. And best of all, for each order, we prepare some free marijuana seeds and awesome gifts for our customers.
Herbies Head Shop expressly refuses to support the use, production, or supply of illegal substances. For more details read our Legal Disclaimer.