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Top 10 tallest cannabis strains
We've searched high and low (mainly high) for the tallest weed trees we could find. In that effort, we've compiled a list of 10 towering cannabis strains that you won't want to miss out on, whether you're growing them, smoking them, or doing both. Take a peek and find out if your new favourite strain is on the list!
There's something remarkable and undeniably impressive about tall cannabis plants. These green giants command attention, standing out in any grow space. But let's be realistic: they're not ideal for every setup. Sure, you can always look to tame them with various training methods, but you're only doing them and yourself a disservice, as these cultivars were designed to flourish. While they're not the best choice for low-key home grows, if you've got the space and don't mind turning heads, you're in for a treat.
Top 10 tallest cannabis strains
With that in mind, we've rounded up the 10 tallest cannabis strains we could find. You can grab all of them from the Zamnesia store and have these sky-high beauties delivered straight to your door.
1. Monster (Eva Seeds)
Monster is the brainchild of the expert growers at Eva Seeds. It boasts a rich and diverse lineage—Mexico, Colombia, Meao Thai, and Uzbekistan genetics; all crossed with a potent G13 Hash plant. The result? A sativa-dominant powerhouse (80%) that really shoots for the sky. When cultivated outdoors, Monster can top out at an unbelievable 4 metres in height! Give her the perfect conditions, and she'll undoubtedly reward you with an enormous yield of 1000–2800 g/plant.
But growing Monster by Eva Seeds isn’t just about size. The buds she produces pack a serious punch, boasting an average THC content of 23%. Combined with the uplifting, euphoric effects of this sativa-heavy hybrid, Monster will have you feeling just as sky-high as the plant itself!
2. Moby Dick (Silent Seeds)
Moby Dick is a legendary hybrid born from a potent cross of White Widow and Original Haze. Instantly cementing its status as a cult favourite, this is a sativa-dominant strain that's renowned for huge levels of THC and monstrous yields. This beast can reach a staggering 3.5 metres in height when grown outdoors. With a flowering time of around 9–10 weeks and a harvest window of mid-to-late October, Moby Dick has the potential to produce jaw-dropping yields of up to 1500 g/plant.
Often hailed as the most psychoactive strain in Silent Seeds' collection, Moby Dick's THC levels grace the 21% mark and produce a high that's not for the faint-hearted. Those seeking long-lasting uplifting effects won't be disappointed when they reach for Moby Dick. Coupled with pine, haze and citrus flavours, this is one whale of strain you'll want to track down.
3. Afghan Skunk (Advanced Seeds)
Afghan Skunk is a tough and resilient hybrid from the breeders at Advanced Seeds. This strain is a strong example of great skunk genetics, complete with incredible productivity. Afghan Skunk remains pretty compact indoors, only reaching around 60–100 cm, but it's outside where this cultivar can really flourish and stretch up to an impressive 2–3 metres. This is a hardy plant that can withstand harsher climates and, after just 8 weeks of flowering, delivers a generous yield that's sure to fill a stash jar or two.
With a THC content of 17%, Afghan Skunk delivers a smooth yet potent high that balances relaxation with a satisfying, flavourful, skunky kick. This strain is a must for those who love classic, no-fuss cannabis with serious results.
4. Giant White Haze (Zamnesia Seeds)
True to its namesake, Giant White Haze is a leviathan of a strain, both in stature and yield. The result of crossing Haze with the Amsterdam classic White Widow, this is a sativa-dominant species that delivers in every way. Giant White Haze can easily top 2 metres when cultivated indoors and left untrained. However, she stretches even further to a towering 3 metres when grown outdoors. But with great size comes great rewards, as growers can expect huge harvests after a flowering time of just 9–10 weeks.
Giant White Haze isn't just about quantity; she also brings serious quality. One pull of this strain evokes the finest earthy and pine flavours and aromas that are sure to please. However, Giant White Haze is no slouch in the effects department, showcasing 21% THC that provides deep relaxation and uplifting cerebral stimulation – perfect for any time of day.
5. Royal Moby (Royal Queen Seeds)
For those who dream big, Royal Moby is the strain to match. This 65% sativa-dominant giant was crafted by crossing Haze with White Widow, resulting in a plant that impresses with both her size and potency. Royal Moby can reach up to 140 cm inside, yielding an impressive 600 g/m² after just 9–10 weeks of flowering. But it's outside where she truly earns her name, as she soars up to 3 metres tall and produces jaw-dropping yields of about 700 g/plant, with some plants even yielding a full kilogram!
Once harvested, Royal Moby delivers a smoking experience as remarkable as her growth. With a THC content of 21%, this strain strikes the perfect balance between cerebral energy and deep physical soothing sensations. Her flavours are dominated by earthiness, spice, and herbal notes that can be enjoyed in various consumption methods, from edibles to tinctures and beyond!
6. Pink Sunset (Sherbinskis x Silent Seeds)
A collaboration between Sherbinskis and Silent Seeds was bound to produce something special, and Pink Sunset does not disappoint. This masterpiece results from crossing Pink Panties with Florida OG, creating a visually stunning and exceptionally potent strain. In the grow-op, Pink Sunset showcases some serious vigour, reaching heights of up to 260 cm outdoors, where support nets are recommended to prevent any wind-induced damage. When allowed to fully and freely flourish, Pink Sunset has the potential to produce a staggering 1650 g/plant come late September/early October.
Complete with an insane THC content of up to 30%, Pink Sunset hits hard and fast, delivering a high that's initially stimulating before becoming profoundly relaxing. This strain also offers a mouth-watering terpene profile, which blends sweet and creamy cookies with more gassy and floral notes, making for a complex but delicious cultivar.
7. Zookies (Zamnesia Seeds)
Zookies is a standout hybrid born from a fusion of two legendary strains – Animal Cookies and GG#4. Zookies is a vigorous plant in the grow-op with strong central stems and vibrant green fan leaves. Indoors, she reaches heights of around 170 cm, producing up to 400 g/m² in just 9–10 weeks of flowering. Outdoors she can hit about 2 metres and churns out up to 500 g/plant come October. This resilient and robust plant can be grown even in cooler climates and conditions. In fact, doing so can bring out stunning dark greens and purple hues in her dense, resinous buds.
Delivering the best of both worlds, Zookies blends Animal Cookies' signature sweetness with GG#4's dank fuel aroma to create an exciting flavour profile ideal for smoking or creating delicious edibles. Of course, the effects are beyond the flavours. With THC levels topping 20%, Zookies' users can expect a relaxing yet functional high that helps keep creativity flowing.
8. Green Crack Punch (Royal Queen Seeds)
Green Crack Punch is the product of a powerful pairing between Green Crack and Purple Punch, resulting in a strain that's got plenty to say for itself. This strain is effortless to grow, whether indoors or outdoors, and has the potential to reach heights of up to 220 cm. Once ready to harvest, growers can anticipate a return of up to 600 g/plant as soon as late September rolls around!
Outside of the grow-op, Green Crack Punch comes out swinging with a fast-hitting, one-two smack of great citrus and fruity flavours backed by effects that are equal parts euphoric and soothing. This makes Green Crack Punch the perfect choice for social settings and focused work sessions.
9. White Widow (Zamnesia Seeds)
As a true, undisputed legend in the cannabis world, White Widow needs little to no introduction. A staple in Amsterdam coffeeshops and a favourite among growers and smokers alike, this hybrid is perfect for all kinds of setups. White Widow is as dependable as they come and can thrive in a wide variety of climates and settings. Inside, she stays low to the ground at about 100 cm and will be ready to yield 500 g/m² of the good stuff after a quick and manageable 8–9 weeks of flowering. Outside, she can thrive in warm and sunny environments and reach heights of 200 cm, producing hefty 600 g/plant harvests by late October.
Boasting THC levels of 18–20%, White Widow delivers an energising, cerebral buzz that can enhance creativity as well as conversation, depending on the setting. Simply put, from start to finish, White Widow doesn't disappoint and rounds off the experience with rich, earthy flavours accented by hints of pine and spice, resulting in a smooth yet pungent smoke that's as classic as it gets.
10. Green Gelato (Royal Queen Seeds)
Rounding off our list is Green Gelato, courtesy of Royal Queen Seeds. This strain was crafted from the finest West Coast genetics by combining Thin Mint Cookies with the refreshing Sunset Sherbet. Royal Queen Seeds has created a slightly indica-dominant hybrid (55%) that delivers incredible flavours and massive potency, all wrapped up in a strain with top-tier growing traits. Growing Green Gelato is an absolute joy, as she’s another cultivar that can reach some impressive heights. Topping off at around 2 metres, this strain offers up to 700 g/plant when cultivated outdoors.
Flavour-wise, Green Gelato is a sweet-toothed stoner's dream come true. Expect a sweet cookie blend with citrus and creamy notes, making each hit a mouth-watering experience. With 25% THC to play with, Green Gelato dazzles with a stimulating high that buzzes the mind while soothing the body, ideal for any situation you can think of.
Tips for cultivating tall cannabis strains
As you might imagine, cultivating taller cannabis strains can have its quirks. But check out our top tips below to ensure you're on your way to ganja greatness.
- Growing space: It should be no surprise that these plants take up a lot of room, so be sure to give them plenty of space (especially vertically). Measure the area so you know your plants can flourish without getting too close to the lights, ceiling, etc.
- Big Pots: Similarly, you need to allow sufficient space for the roots to develop. Considering how these plants grow and spread out, a big pot should be at the top of your shopping list. You don’t want to be a few weeks into the growing cycle only to find out your plants are already root-bound.
- Watering: With the sheer size of these monsters, you can imagine they’re pretty thirsty! Keep a constant eye on them. If you’re able to easily lift up the pots, the soil is probably dry. Water them when you notice the containers getting light, and you’ll be okay.
- Lighting: Whether you’re growing indoors or outdoors, lighting is hugely important to the growing process. Natural sunlight will allow these plants to grow extremely tall, or you can opt for a little more control with indoor lighting systems.
Grow big or go home: Choosing the right tall strain for you
For growers who really want to make a statement, these 10 colossal cannabis cultivars offer the perfect opportunity to do so. From legendary giants like Monster and Moby Dick to powerhouse hybrids such as Green Gelato and Pink Sunset, these strains deliver not just sheer size but also come highly rated in potency, flavour, and yield.
However, as you can probably tell, we've only begun to scratch the surface of what these strains are truly capable of. So, all that's left to do is to check them out for yourself. Ready to grow big? Visit the Zamnesia store today and get your hands on a sky-high strain and take your cannabis cultivating experience to the next level.
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