By Luke Sumpter

Autoflowering cannabis strains are popular amongst home-growers for many reasons; but their main asset is a fast growing cycle. Couple this with a warm climate (if you are fortunate enough to live in one), and you have a plant capable of producing multiple crops over the course of a year.

Regions including Spain, Portugal, the South of France, and Italy experience warm, sunny, and long growing seasons. Although cannabis plants thrive in these areas, dry climates and high temperatures can inflict stress and impact yields. Fortunately, several cultivars are well-equipped to deal with these conditions. 

In this article, we take a look at the top 5 autoflowering strains that will flourish in warm environments. This list covers everything from sky-high sativas to couch-locking indicas and those in between—so you’re sure to find one that suits your needs.

1. White Widow Automatic

No list would be complete without the inclusion of White Widow, and what better place to start than with it? Revered by many as one of the most famous cannabis strains in the world, White Widow Automatic does a fine job replicating the original strain, but with a much more reasonable growing time of 75–85 days.

This cultivar will thrive under the blazing sun, reaching a discreet height of roughly 50cm on average and producing around 190–240g/plant. The bud is pleasantly pungent—earthy and woody in both aroma and taste.

White Widow Auto

White Widow Auto
23_genetic background_1 White Widow x ruderalis
33_Yield indoors_1 400 - 450 gr/m2
31_plant height outdoor_1 40 - 80 cm
25_flowering time_1 7 - 8 weeks
29_THC_1 THC: 14%
28_Type Blend_1 Sativa 40% Indica 40% Ruderalis 20%
34_yield outdoor_1 190 - 240 gr/plant
32_plant height outdoors_1 50 - 110 cm
27_harvest period_1 10 - 12 weeks after sprouting
22_Effect_1 Physically Relaxing, Stoned

Buy White Widow Auto

2. Diesel Automatic

Diesel Automatic is a next generation autoflowering hybrid strain. Selective breeding of NYC Diesel and Lowryder #2 has given rise to the premier auto strain without compromise. Virtually every desirable trait from each parent has been fine-tuned and enhanced in the offspring.

A decade ago nobody would have believed it possible to harvest 100g+ of top-shelf bud per plant from outdoor autoflowering plants under 1m tall. And definitely not in a total growing time of 8 weeks. Diesel Automatic is the autoflowering strain that might finally dispel the myth that autos cannot measure up to photoperiod strains.

Diesel Automatic is in a league of its own. Ultra potent and productive with no obvious weaknesses or downside risk. In a warm climate with minimal fertilisation, this strain will amaze even seasoned cultivators with how fast and frosty the nuggs fill out. For beginners or those with just enough space for one plant this summer make sure it’s Diesel Automatic.

Diesel Automatic

Diesel Auto
23_genetic background_1 Diesel x Ruderalis
33_Yield indoors_1 325 - 375 gr/m2
31_plant height outdoor_1 40 - 70 cm
25_flowering time_1 8 - 10 weeks
29_THC_1 THC: 14%
28_Type Blend_1 Sativa 40% Indica 30% Ruderalis 30%
34_yield outdoor_1 60 - 110 gr/plant
32_plant height outdoors_1 60 - 110 cm
27_harvest period_1 13 to 14 weeks after sprouting
22_Effect_1 Calming, Clear

Buy Diesel Auto

3. Sherbet Queen Automatic

Sherbet Queen Automatic loves to bask in the hot summer sun. Considering she receives enough water to keep her roots hydrated, she’ll produce a dense canopy of buds in hot and dry regions. This hardy strain descends from parent strains Pink Panties and Cookies Auto and possesses an indica-dominant genetic profile. She produces thick, tapered flowers housing a THC value of 20%—placing her among the strongest autos available. Enjoy tastes of fruit with every hit.

Grow her outdoors in small containers or transplant her directly into raised beds. She’ll grow to a maximum height of 120cm, but will remain at only 80cm with some LST. Expect an impressive yield of up to 150g/plant after a brief growing cycle of 8–9 weeks.

Sherbet Queen Auto
23_genetic background_1 Pink Panties x Cookies Auto
33_Yield indoors_1 325 - 400 gr/m2
31_plant height outdoor_1 70 - 100 cm
25_flowering time_1 6 - 7 weeks
29_THC_1 THC: 20%
28_Type Blend_1 Sativa 35% Indica 60% Ruderalis 5%
34_yield outdoor_1 100 - 150 gr/plant
32_plant height outdoors_1 80 - 120 cm
27_harvest period_1 8 - 9 weeks after sprouting
22_Effect_1 Calming

Buy Sherbet Queen Auto

4. Mimosa Automatic

Mimosa Automatic earned her title thanks to the delicious terpenes embedded in her flowers. Just like her namesake beverage, she's invigorating and really takes the edge off. Her buds display a thick coating of trichomes and gorgeous shades of deep purple and dark green. Exposure to intense sunlight likely increases her taste and potency, as cannabis trichomes ramp up resin production to protect against UV rays. Her THC level of 21% synergises with citrusy terpenes to produce a cerebral and motivating high.

This cultivar does well outdoors, where she peaks at a height of 130cm. Sow companion plants such as basil and dill nearby to help defend against pests. Prepare to harvest 80–130g/plant just 9–10 weeks after germination.

Mimosa Auto
23_genetic background_1 Mimosa Auto x Orangeade Auto
33_Yield indoors_1 350 - 400 gr/m2
31_plant height outdoor_1 100 - 150 cm
25_flowering time_1 7 - 8 weeks
29_THC_1 THC: 21%
28_Type Blend_1 Sativa 65% Indica 30% Ruderalis 5%
34_yield outdoor_1 80 - 130 gr/plant
32_plant height outdoors_1 120 – 160 cm
27_harvest period_1 9 - 10 weeks after sprouting
22_Effect_1 Clear, Uplifting

Buy Mimosa Auto

5. Royal Jack Automatic

Royal Jack Automatic is a hardy hybrid blend of the legendary Jack Herer and autoflowering genetics. Optimal environmental conditions, like a sun-drenched southern European summer, can bring out the very best in the Royal Jack Automatic.

After germination these seeds will race to harvest in just 9-10 weeks. This kind of vigorous development makes two well-timed harvests possible. Weather permitting a bountiful harvest is a sure thing in a warm climate. Perfect for a first time discreet balcony/terrace grow.

Royal Jack Auto

Royal Jack Auto
23_genetic background_1 Jack Herer x Ruderalis
33_Yield indoors_1 350 - 400 gr/m2
31_plant height outdoor_1 40 - 80 cm
25_flowering time_1 7 - 8 weeks
29_THC_1 THC: 16%
28_Type Blend_1 Sativa 40% Indica 30% Ruderalis 30%
34_yield outdoor_1 70 - 120 gr/plant
32_plant height outdoors_1 60 - 80 cm
27_harvest period_1 11 - 12 weeks after sprouting
22_Effect_1 Creative, Motivating

Buy Royal Jack Auto

Shade Rather Than Shelter

If you are lucky enough to be growing marijuana outdoors in an idyllic environment with fertile soil, fresh water and long sunny days remember too much sun can be a bad thing.

Should temps rise above 28°C even the most robust autoflowering plants will get burned and have trouble photosynthesising. Invest in shading to protect your plants. Build a simple shade with some shade cloth and keep roots cool with some straw bedding on the top soil.

Further Information

So, there you have it—those are our top 5 autoflowering strains for warm climates. If, however, this article was not "hot" enough for you (say, because you live in an arid region with seriously high temperatures), you may want to have a look at our blog on growing cannabis in drought conditions.

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