Fast-Flowering Strains

Whether you grow indoors or outdoors, in hydro or in soil, we're sure you love the thought of a speedy harvest. That's why we've compiled all of our favourite fast-flowering strains in one place. With these speedy seeds, you can enjoy a great harvest, even if you got a late start to the season. Depending on your growing environment, you may even be able to squeeze two harvests into one season with these specimens. Best of all, our selection of fast-flowering strains won't sacrifice quality for speed, and are guaranteed to produce top-shelf bud with minimal effort.

So what are you waiting for? Get browsing to find your perfect fast-flowering strain today!

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1046 products

Lemon Cherry Gelato (Zamnesia Seeds) feminized

Mouthwatering flavour: A delightful mix of fruity, pine, sour, sweet, tropical, and woody notes. Premium genetics: A cross of Sunset Sherbet × Girl Scout Cookies. Resilient & compact: Medium-sized plants suitable for various growing environments. Balanced effects: Promotes relaxation while enhancing focus and creativity.

(30)
£22.43 £17.94
+26 Extra Gift Points

LA Kush Cake (Zamnesia Seeds) feminized

Decadent flavours: Savour notes of sweet vanilla cake with a spicy, peppery kick. Elite US genetics: Wedding Cake x Kush Mints combine for top-tier potency. 25% THC: For deep relaxation and mood-enhancing euphoria. Monster yields: Up to 600 g/m² indoors and 850 g/plant outdoors. Effortless growth: Hardy, resilient, and packed with dense, frosty buds.

(11)
£22.43
+26 Extra Gift Points

Dutch Treat (Zamnesia Seeds) Feminized

Complex aromas: A delightful mix of fruity, orange, and sweet terps. Classic genetics: A hybrid of Northern Light x Haze x Skunk#1. Compact growth: A small, balanced strain that will produce a good harvest with proper care. Uplifting effects: Enjoy mental clarity and a mellowing physical effect.

(6)
£22.43
+26 Extra Gift Points

Wedding Crasher (Zamnesia Seeds) feminized

Rich flavours: A decadent mix of vanilla, sweet berries, and diesel. Potent & balanced: 21% THC delivers focus, creativity, and full-body relaxation. Heavy yields: Up to 600 g/plant outdoors and 500 g/m² indoors. Stunning buds: Resinous nugs with vibrant green, blue, and purple hues. Quick turnaround: Harvest potent buds in just 9–10 weeks of bloom.

(1)
£22.43
+26 Extra Gift Points

White Runtz Autoflower (Zamnesia Seeds) feminized

Extra fast: White Runtz Autoflower plants can get the chop just 9 weeks after germination. Solid yields: Reel in up to 450 g/m²! Real USA genetics: White Runtz Auto descends from Gelato and Zkittlez. Candy terps and 22% THC: Enjoy a sweet, smooth, and strong smoke.

(22)
£22.43
+26 Extra Gift Points

King Louis (Zamnesia Seeds) feminized

Royal genetics: King Louis descends from top-shelf Californian strains. Big flavours and aromas: Enjoy a mix of fresh, earthy pine terps. 24% THC: For a heavy-handed stone. Short stature: Ideal for smaller spaces.

(26)
£22.43 £17.94
+26 Extra Gift Points

White Runtz (Zamnesia Seeds) feminized

Super sweet: The Runtz line is loved for its bold candy aromas. Top-shelf Cali genetics: White Runtz was born and bred in the San Francisco Bay Area. Excellent resin production: Harvest big, dense, snow-white flowers. 24% THC: Enjoy a heavy, tingly body high ideal for beating tension.

(22)
£22.43
+26 Extra Gift Points

Black Diamond (Zamnesia Seeds) feminized

Superb genetics: Descending from Blackberry and Diamond OG. Rich and smooth smoke: Black Diamond offers a sweet experience filled with fruity notes. Productive plants: Specimens grow tall and promise large yields in optimal conditions. Pronounced effects: A THC level of 23% powers a long-lasting, soothing effect.

(18)
£22.43 £17.94
+26 Extra Gift Points

Black Diamond Autoflower (Zamnesia Seeds) feminized

Yummy terpenes: Sweet and fruity flowers with aromas of grape. 23% THC: Hits the perfect potency sweet spot. Quick turnaround: Black Diamond Auto goes from germination to harvest in only 8–9 weeks. Indica dominant: A Blackberry, Diamond OG, and ruderalis cross, this plant is 90% indica.

(44)
£22.43
+26 Extra Gift Points

White Truffle Autoflower (Zamnesia Seeds) feminized

Elegant flavours: Enjoy notes of sweet autumn fruits and buttery nuts. Super speedy genetics: White Truffle Autoflower goes from germination to harvest in just 8–9 weeks. Compact plants: Ideal for small tents and converted cupboards. Full-body effects: White Truffle Autoflower eases the mind and soothes the body in minutes.

(42)
£22.43
+26 Extra Gift Points

Blueberry (Zamnesia Seeds) feminized

Whether you're brand new to the task of cultivating or have several growing projects under your belt, Blueberry is sure to put a smile on your face, in more ways than one! She's easy to grow and care for, and, as her name suggests, is bursting with flavour! However, she also packs a relaxing wallop that is sure to win over cannabis connoisseurs with a love for uber-chill vibes.

(70)
£16.39
+20 Extra Gift Points

Super Boof (Zamnesia Seeds) feminized

Award-winning: Super Boof (aka Superboof) was Leafly's Strain of the Year in 2024. High potency: Savour 26% THC and aromatic terpenes. Soothing effects: Enjoy a profound buzz that combines mental euphoria with a warm physical sensation. Extra frost: Super Boof produces a thick coat of resin, ideal for hash-making.

(37)
£22.43
+26 Extra Gift Points

Permanent Marker (Zamnesia Seeds) feminized

Award-winning genetics: Permanent Marker was Leafly's Strain of the Year in 2023. Extreme potency: Enjoy up to 31% THC! High-profile origins: Permanent Marker was originally created by JBeezy at Seed Junky Genetics. Dank aromas: Enjoy lingering floral fumes with notes of soap and gas.

(68)
£22.43 £17.94
+26 Extra Gift Points

Grease Monkey (Zamnesia Seeds) feminized

All-star USA genetics: Grease Monkey stems from a cross of GG#4 and Cookies & Cream. Indica dominance: Expect bushy plants with rock-hard nugs. Top-shelf potency: Grease Monkey boasts 24% THC and skunky, gassy terpenes. Fast-flowering: Grease Monkey takes just 8 weeks to reach maturity indoors.

(24)
£22.43
+26 Extra Gift Points

Tangerine Dream (Zamnesia Seeds) feminized

When legends cross, they create legendary outcomes. Or at least that was the case when our breeders created Tangerine Dream from a select variety of classic strains. Boasting sweet citrus aromas and flavors, hardy grow traits, and a happy, uplifting high, there's little not to love about Tangerine Dream by Zamnesia Seeds. But don't take our word for it—order your seeds now and find out yourself.

(65)
£22.43
+26 Extra Gift Points

Biscotti (Zamnesia Seeds) feminized

If you're shopping for a powerful indica that's packed full of flavour, look no further than Biscotti. Containing up to a whopping 25% THC and producing pronounced effects, this flavoursome lady is no slouch in the grow room either. With a little care, those who sow Biscotti seeds can count on excellent results come harvest time.

(200)
£22.43
+26 Extra Gift Points

Sunset Sherbet Autoflower (Zamnesia Seeds) feminized

From the folks at Zamnesia Seeds comes Sunset Sherbet Autoflower. This easy-growing strain boasts a super-short growing cycle of just 60 days. Effortless to maintain, she delivers bountiful yields emanating sweet, fruity flavours that are bound to get mouths watering. Coupled with an impressively relaxing high, there is plenty to love about this well-rounded strain.

(354)
£22.43
+26 Extra Gift Points

Wedding Cake Autoflower (Zamnesia Seeds) feminized

From the team at Zamnesia Seeds comes Wedding Cake Autoflower. This autoflowering strain is not only a joy to grow, but also to smoke—thanks to her impressive flavour profile and abundant high. An easy, breezy specimen in the grow room, she's perfect for beginners looking to get their feet wet, and experienced growers seeking a hassle-free home project.

(461)
£18.12
+22 Extra Gift Points

Runtz (Zamnesia Seeds) feminized

The hype is real, guys! Our breeders managed to bring you something Californians long for—the exquisitely delicious and ultra-potent Runtz. This cross of Gelato and Zkittlez is everything you could ever want from a cannabis strain: tasty, powerful, balanced, productive, and fast-flowering. Get the seeds and experience this phenomenon first-hand!

(855)
£24.16 £19.33
+28 Extra Gift Points

Purple Punch (Zamnesia Seeds) feminized

Purple Punch by Zamnesia Seeds is a dreamy indica that shines with an exquisite taste and an incredibly relaxing effect. Despite her compact size, this almost pure indica is very easy to grow and can deliver great yields.

(269)
£18.12
+22 Extra Gift Points

Gelato (Zamnesia Seeds) feminized

Supreme dankness never tasted so good. Zamnesia Seeds presents Gelato, a strapping indica-dominant strain that stands tall in the grow room and unleashes a high of epically smooth proportions. Unlike some other Gelato variants on the market, our version is infused with the ultra-potent Wedding Cake to give consumers a little something extra to fall in love with.

(207)
£22.43
+26 Extra Gift Points

Lemon Power Haze (Zamnesia Seeds) feminized

Refreshingly sweet and lemony yet nicely rich and dank: Lemon Power Haze by Zamnesia Seeds doesn’t just taste awesome but gives the perfect high that matches her great taste: Let this uplifting Lady give you bouts of energy, creativity and motivation and have her boost your mood in no time. No doubt, an absolutely treat for sativa lovers!

(153)
£16.39 £13.11
+20 Extra Gift Points

Girl Scout Cookies (Zamnesia Seeds) Feminized

Girl Scout Cookies is an American hybrid taking Europe by storm. This strain combines the finest Cookie genetics, culminating in an unprecedented and deliciously powerful new variety. Its uplifting, cerebral high will relax the body, and its potent, high-yielding buds will come in full force in just 8-9 weeks of flowering.

(179)
£24.16
+28 Extra Gift Points

Cheese (Zamnesia Seeds) feminized

Cheese is an all-time favourite strain of cannabis seeds hailing from the UK. Produced by mixing Skunk x Northern Lights, this award winning strain has a flowering time of 8 weeks and produces a strong mind and body high. It is an absolute old-school classic, a connoisseur favourite!

(187)
£16.39
+20 Extra Gift Points

White Widow (Zamnesia Seeds) feminized

A “highly” recommended and firm favourite all around the world, White Widow is a hybrid strain of much acclaim and respect. Not just a pretty-looking plant, she manages to pack a remarkably potent punch that will KO those who don't take her seriously. If that wasn't enough, she's also a vigorous grower, taking just 9 weeks to flower.

(350)
£16.39 £13.11
+20 Extra Gift Points

Critical (Zamnesia Seeds) feminized

Very much a plucky pot provider, Critical from Zamnesia Seeds is a (mostly) indica strain that is high on potency and even higher on yields. A meticulous combination of Afghani and Skunk, she is a short but remarkably sweet strain that flourishes under minimal supervision. In Just 7 weeks of flowering she is ready to share her bountiful bud with you.

(301)
£16.39
+20 Extra Gift Points

Northern Lights (Zamnesia Seeds) feminized

Quite simply a spectacular specimen of cannabis, Northern Lights has withstood the test of time to become one of the most well-loved strains of all time. Taking only 7 weeks to flower, she is a vigorous grower and an abundant supplier. Predominantly indica in nature. Northern Lights can produce in excess of 500g/m² of some of the finest bud in the world.

(263)
£16.39
+20 Extra Gift Points

Sundae Driver Autoflower (Zamnesia Seeds) feminized

Delicious genetics: A yummy blend of Fruity Pebbles OG, Grape Pie, and ruderalis. Quick turnaround: Harvest-ready in 8–9 weeks from seed. Sweet terpenes: Fruity and sugary aromas and flavors offer pleasurable sessions. Uplifting effects: You'll laugh out loud after a few puffs, perfect for sharing with like-minded buddies.

(87)
£22.43
+26 Extra Gift Points

Pineapple Express F1 Autoflower (Zamnesia Seeds) feminized

Boasting rich, sweet flavours and uplifting effects, Pineapple Express F1 Autoflower is a rewarding autoflower that delivers a massive haul of buds in 9 weeks or less from germination. And topping out at a manageable height of just 50–70cm, this strain is well-suited to indoor, outdoor, and greenhouse spaces. Experience this fierce F1 specimen for yourself!

(399)
£30.20
+36 Extra Gift Points

Grape Ape F1 Autoflower (Zamnesia Seeds) feminized

Boasting reliable and resilient genetics, Grape Ape F1 Autoflower is a versatile and accessible strain. This autoflowering cultivar takes just 8–9 weeks from seed to harvest and stays pretty close to the ground throughout its growing cycle. With very little maintenance or upkeep required, growers are treated to flavourful sweet berry buds that are teeming with relaxing and soothing effects.

(144)
£30.20
+36 Extra Gift Points

Afghani (Zamnesia Seeds) feminized

Thick buds with a bold, spicy hash aroma and a relaxing stone—that's what you can expect from our landrace Afghani. With cannabis growing natively across Central Asia, Afghanistan has a long tradition of cannabis cultivation and hashish production, and Afghani weed is still considered some of the finest on the planet. Now, growing it at home has never been easier.

(154)
£17.25 £13.80
+20 Extra Gift Points

Kalini Asia (Zamnesia Seeds) Feminized

Kalini Asia, the “Flower from the Hindu Kush”, is a beautiful purple strain that combines the best and most elusive purple phenotypes of Kush mountain strains. Exclusively bred by Zamnesia, this gorgeous lady will not just catch the eye with her vibrant purple colours, she will also please with pungent pine aromas and a deeply relaxing yet euphoric stone.

(444)
£22.43 £17.94
+26 Extra Gift Points

GG#4 (Zamnesia Seeds) feminized

The one and only GG#4 now exclusively available here at Zamnesia Seeds! This spectacularly potent and flavourful Indica which until recently was only available in the US doesn’t just make for incredible relaxation with a happy and uplifting effect. Her out-of-this-world potency makes GG#4 also an excellent strain for the treatment of chronic pains and other health conditions.

(373)
£22.43
+26 Extra Gift Points

Cash Express (Zamnesia Seeds) feminized

If you’re looking for a perfect Skunk that brings some staggering yields to the table, Cash Express by Zamnesia Seeds should definitely be on your list. This classic Skunk combines a number of excellent qualities, making her not just a superb choice for cash croppers, but simply excellent for everyone—from cannabis enthusiasts to new growers looking for great results without the hassle.

(112)
£16.39
+20 Extra Gift Points

Monster Dwarf Autoflower (Zamnesia Seeds) feminized

Monster Dwarf Autoflower by Zamnesia may be small but you should definitely not judge her on size alone! This great autoflowering Skunk hybrid isn’t just perfect to grow in even the smallest spaces. Her good yields, nice skunky aroma and pleasant effect make Monster Dwarf Autoflower by Zamnesia an easy autoflower that you will love!

(213)
£16.39
+20 Extra Gift Points

Lemon Wonder Autoflower (Zamnesia Seeds) feminized

Blessed with super quick growing genetics, Lemon Wonder Autoflower from Zamnesia Seeds is a crop capable of raking in the cash! By successfully mixing Lowryder with a Lemon OG strain, the cultivators were able to create a product of immense speed, resilience and desirability - ready to harvest in just 8 weeks!

(193)
£16.39
+20 Extra Gift Points

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