By Luke Sumpter

Spanish growers have the luxury of a long and sunny growing season perfect for producing high-quality weed. With the ability to select essentially any strain they want, cultivators in the country strongly prefer high levels of THC and sweet and fruity terpenes.Follow our review of the five most popular weed strains in Spain below, on the dedicated growing journals, and decide which varieties to include in your garden.

Cookies Gelato

Cookies Gelato has cemented itself as one of the top Spanish weed strains thanks to its speedy flowering time, great productivity, and sugary sweet flavors. Sow seeds in cell trays and expect sprouts to burst through the soil within two days. Seedlings will grow to 5cm within a week. Transplant them into a sunny spot once the first true leaves grow past the circumference of the cell, aiming for a south-facing position enriched with organic matter. When fed and watered well, plants will reach 20–30cm by the end of week three. Foliar sprays of compost tea and liquid seaweed pay dividends when it comes to disease protection and accelerated growth.

Cookies Gelato

Plants will stretch significantly during the early flowering phase, topping out at a height of 180cm when untrained. Expect a large central cola to develop, flanked by smaller (but still dense) colas lower down. Fruity and sweet terpenes will start to permeate the air during the middle of bloom, and buds will develop a purple hue later on in the flowering phase. Prepare to harvest up to 650g/plant from this productive cultivar during the middle of October.

Derived from parent strains Girl Scout Cookies and Gelato 33, Cookies Gelato inherited a massive THC content of 28%. Brace yourself for a hard-hitting physical high and tastes of citrus, earth, fruit, mint, and sugar.

Cookies Gelato
23_genetic background_1 Girl Scout Cookie X Gelato 33
33_Yield indoors_1 19 to 21 oz/m²
31_plant height outdoor_1 3 to 4 feet
25_flowering time_1 8 - 9 weeks
29_THC_1 THC: 28%
28_Type Blend_1 Sativa 50% Indica 50%
34_yield outdoor_1 21 to 23 oz/plant
32_plant height outdoors_1 5 to 6 feet
27_harvest period_1 Middle of October
22_Effect_1 Balanced, Calming, Physically Relaxing

Buy Cookies Gelato


Critical possesses an inherent hardiness that allows this strain to thrive outdoors all over Spain, from the temperate north to the arid midlands and the warm and sunny southeast. Sow seeds directly into their final pot and bring them outdoors as soon as the risk of frost has safely passed. Critical thrives when exposed to daytime temperatures of 26°C and humidity of around 60%. Expect plants to reach a height of 150cm before transitioning into bloom as the seasonal light begins to wane. Remove some of the larger and older fan leaves as pre-flowers start to emerge to allow light and air into the canopy.


Within the first three weeks of flowering, plants will start to produce young buds complete with small sugar leaves and plenty of brilliant white pistils. Organic feeds high in potassium and phosphorus will keep them developing nicely. Depending on container size, you can expect Critical to reach up to 220cm by the middle of bloom. Withhold nutrients during the final 2–3 weeks to flush your plant and improve the flavor of your flowers. Grab your gear and prepare to harvest, trim, and dry up to 650g/plant during the end of September.

Critical received her desirable traits from legendary parent strains Afghan and Skunk. Her THC content of 18% exerts a pleasant, manageable effect complemented by aromas and flavors of candy, earth, fruit, pine, and skunk.

23_genetic background_1 Afghani x Skunk
33_Yield indoors_1 19 to 21 oz/m²
31_plant height outdoor_1 3 to 5 feet
25_flowering time_1 7 - 9 weeks
29_THC_1 THC: 18%
28_Type Blend_1 Sativa 40% Indica 60%
34_yield outdoor_1 21 to 23 oz/plant
32_plant height outdoors_1 6 to 7 feet
27_harvest period_1 Late September
22_Effect_1 Heavy, Physically Relaxing, Stoned

Buy Critical

Northern Light Auto

As the progeny of the legendary Northern Light, this autoflowering weed strain provides lightning-fast yields in tight spaces, from balconies to concealed corners of the garden. Sow Northern Light Auto seeds directly into 11l pots filled with soil amended with high-quality compost and organic fertiliser. Within a couple of days, sprouts will emerge; over their brief 4-week vegetative phase, plants will surge up to 80cm in height. Apply LST during week three if you want to keep your plants on the shorter side. The bushy and dense canopy benefits from periodic defoliation to maintain good airflow. Make the switch to bloom nutrients at the first sign of pre-flowers.

Northen Light Auto

Northern Light Auto charges through the flowering phase in just 6–8 weeks. What start out as small and delicate pre-flowers quickly unfurl into dense, nugget-shaped buds drenched in resin. Untrained plants will stretch dramatically—up to 160cm—whereas their trained counterparts will remain as short as 60cm. Following a successful growing cycle with no deficiencies and diseases, Northern Light Auto will churn out up to 220g/plant ready to harvest 10–12 weeks after sprouting.

Northern Light Auto possesses a moderate THC content of 14% alongside a complex terpene profile. Her clear and uplifting effects make her a popular choice for staying elevated during the day.

Northern Light Auto
23_genetic background_1 Northern Light x Ruderalis
33_Yield indoors_1 18 to 19 oz/m²
31_plant height outdoor_1 3 to 4 feet
25_flowering time_1 6 - 8 weeks
29_THC_1 THC: 14%
28_Type Blend_1 Sativa 0% Indica 80% Ruderalis 20%
34_yield outdoor_1 6 to 8 oz/plant
32_plant height outdoors_1 4 to 5 feet
27_harvest period_1 10 - 12 weeks after sprouting
22_Effect_1 Clear, Uplifting

Buy Northern Light Auto

Green Gelato

Spain certainly loves Cali weed, which has made Green Gelato one of the most sought-after cultivars in the country. From the mountains to the coast, this strain dots gardens and balconies thanks to her massive THC content and rare vanilla flavor. Green Gelato features a high germination rate and performs well when sown directly into her final position. Plants will reach a height of 5–10cm at the end of the second week of veg and start to develop a thicker stem and broader true leaves. Expect a dense and bushy canopy towards the end of the vegetative stage. Your plant will stand at 100–150cm as pre-flowers start to emerge, depending on pot size.

Green Gelato

Green Gelato’s buds start to thicken during the third week of flowering. Take care to cut away any fan leaves casting shade over flowers located lower down in the canopy. Your plant will stretch during early bloom, reaching a height of 200cm if grown directly in the ground or in a large container. Growers in regions that experience cool nights towards the end of the season will see plants take on an eye-catching purple complexion. Flush your plants during the last two weeks, and get to work harvesting up to 800g/plant during early October.

As the successor of parent strains Sunset Sherbet and Thin Mint Girl Scout Cookies, Green Gelato boasts an outlandish THC content of 27%. These buds deliver a hard-hitting physical high that keeps the mind clear, while flavors of citrus, earth, mint, pepper, and vanilla make every hit a pleasant experience.

Green Gelato
23_genetic background_1 Sunset Sherbet x Thin Mint Girl Scout Cookies
33_Yield indoors_1 12 to 16 oz/m²
31_plant height outdoor_1 3 to 4 feet
25_flowering time_1 8 - 10 weeks
29_THC_1 THC: 27%
28_Type Blend_1 Sativa 45% Indica 55%
34_yield outdoor_1 28 oz/plant
32_plant height outdoors_1 5 to 7 feet
27_harvest period_1 Early October
22_Effect_1 Clear, Physically Relaxing

Buy Green Gelato

Fat Banana Auto

Fat Banana Auto has become one of the top Spanish weed strains among growers who prioritise rapid growing times. Her speedy nature and compact size are ideal for cultivators dealing with limited space or resources. This plant does particularly well as part of a polyculture to protect it from pests and disease—consider raising it alongside anything from broad beans and carrots to borage and marigolds. Sow seeds directly into 11l pots filled with a high-quality potting mix. Watch your seedlings emerge from the soil a couple of days later and reach a height of 10cm by the end of the third week of the vegetative phase. At the climax of veg, Fat Banana Auto will stand at around 80–100cm as pre-flowers start to manifest at the nodes.

Fat Banana Auto

With a flowering time of just 7–8 weeks, Fat Banana Auto makes quick work of maturing her buds. The pre-flowers rapidly start to thicken into larger clusters of pistillate flowers, and plants stretch to a maximum height of 120cm. Aromas of banana and fruit start to permeate the air as this strain charges towards maturity. Flush your plants two weeks prior to harvest to achieve the best-tasting buds possible, and to bring her tropical notes to the fore. Grab your trimming scissors and drying gear and get ready to harvest up to 175g/plant just 9–10 weeks after germination.

Royal Queen Seeds breeders crafted this variety by crossing the original Fat Banana with Cookies Auto. A THC content of 22% and fruity terpenes synergise to impart a clear-headed and creative experience.

Fat Banana Auto
23_genetic background_1 Fat Banana x Cookies Auto
33_Yield indoors_1 13 to 16 oz/m²
31_plant height outdoor_1 2 to 3 feet
25_flowering time_1 7 - 8 weeks
29_THC_1 THC: 22%
28_Type Blend_1 Sativa 20% Indica 70% Ruderalis 10%
34_yield outdoor_1 3 to 6 oz/plant
32_plant height outdoors_1 3 to 4 feet
27_harvest period_1 9 - 10 weeks after sprouting
22_Effect_1 Calming, Clear

Buy Fat Banana Auto

Why settle for mediocre genetics when you can grow the best of the best? The popularity of these five strains in the weed culture of Spain shows just how well they deliver. Each one produces large yields after a short flowering time and possesses hardy genes that allow them to thrive anywhere in the country. Enjoy sky-high levels of THC, delicious terpenes, and an all-around rewarding growing experience.

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