Sort: High THC first
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Lemon Cake (Heavyweight Seeds) Heavyweight Seeds
4/20 Deal
Lemon Cake (Heavyweight Seeds)
4.8 (10)
N/A THC
  • Feminized
  • Photoperiod
4/20 Deal
Pack (number of seeds)
$42.51 $62.56 70.85 Save 8.29 $114.7 141.71 Save 27.01
Monster Profit strain Heavyweight Seeds
4/20 Deal
Monster Profit (Heavyweight Seeds)
5 (7)
N/A THC
  • Feminized
  • Photoperiod
4/20 Deal
Pack (number of seeds)
$42.41
Superb OG (Heavyweight Seeds) Heavyweight Seeds
4/20 Deal
Superb OG (Heavyweight Seeds)
0 (0)
N/A THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
$42.78 $62.97 71.31 Save 8.34 $115.44 142.61 Save 27.17
Strawberry Cake (Heavyweight Seeds) Heavyweight Seeds
4/20 Deal
Strawberry Cake (Heavyweight Seeds)
4.9 (9)
N/A THC
  • Feminized
  • Photoperiod
4/20 Deal
Pack (number of seeds)
$42.51 $62.56 70.85 Save 8.29 $114.7 141.71 Save 27.01
Green Ninja (Heavyweight Seeds) Heavyweight Seeds
4/20 Deal
Green Ninja (Heavyweight Seeds)
5 (2)
N/A THC
  • Feminized
  • Photoperiod
4/20 Deal
Pack (number of seeds)
$42.51 $62.56 70.85 Save 8.29 $114.7 141.71 Save 27.01
Goldmine (Heavyweight Seeds) Heavyweight Seeds
4/20 Deal
Goldmine (Heavyweight Seeds)
0 (0)
N/A THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
$42.5 $62.54 70.83 Save 8.29 $114.66 141.65 Save 26.99
Fruit Punch (Heavyweight Seeds) Heavyweight Seeds
4/20 Deal
Fruit Punch (Heavyweight Seeds)
4.6 (5)
N/A THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
$42.5 $62.54 70.83 Save 8.29 $114.66 141.65 Save 26.99
Budzilla (Heavyweight Seeds) Heavyweight Seeds
4/20 Deal
Budzilla (Heavyweight Seeds)
0 (0)
N/A THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
$42.67 $62.8 71.12 Save 8.32 $115.13 142.24 Save 27.11
Tropic Punch (Heavyweight Seeds) Heavyweight Seeds
4/20 Deal
Tropic Punch (Heavyweight Seeds)
5 (1)
N/A THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
$42.5
Total Paralysis (Heavyweight Seeds) Heavyweight Seeds
4/20 Deal
Total Paralysis (Heavyweight Seeds)
0 (0)
N/A THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
$42.43 $62.45 70.72 Save 8.27 $114.49 141.44 Save 26.95
Extreme Impact Auto (Heavyweight Seeds) Heavyweight Seeds
4/20 Deal
Extreme Impact Auto (Heavyweight Seeds)
5 (8)
N/A THC
  • Feminized
  • Autoflowering
Pack (number of seeds)
$42.5 $62.54 70.83 Save 8.29 $114.66 141.65 Save 26.99
Money Bush strain Heavyweight Seeds
4/20 Deal
Money Bush (Heavyweight Seeds)
5 (2)
N/A THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
$42.5
Midnight Mass (Heavyweight Seeds) Heavyweight Seeds
4/20 Deal
Midnight Mass (Heavyweight Seeds)
0 (0)
N/A THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
$42.5 $62.54 70.83 Save 8.29 $114.66 141.65 Save 26.99
Fruit Punch Auto (Heavyweight Seeds) Heavyweight Seeds
4/20 Deal
Fruit Punch Auto (Heavyweight Seeds)
4.9 (12)
N/A THC
  • Feminized
  • Autoflowering
Pack (number of seeds)
$63.25 $115.96 143.26 Save 27.3
Fully Loaded Auto strain Heavyweight Seeds
4/20 Deal
Fully Loaded Auto (Heavyweight Seeds)
0 (0)
N/A THC
  • Feminized
  • Autoflowering
Pack (number of seeds)
$42.5 $62.54 70.83 Save 8.29 $114.66 141.65 Save 26.99
Wipeout Express Auto (Heavyweight Seeds) Heavyweight Seeds
4/20 Deal
Wipeout Express Auto (Heavyweight Seeds)
4.8 (4)
N/A THC
  • Feminized
  • Autoflowering
Pack (number of seeds)
$42.5 $62.54 70.83 Save 8.29 $114.66 141.65 Save 26.99
Skunky Monkey Auto (Heavyweight Seeds) Heavyweight Seeds
4/20 Deal
Skunky Monkey Auto (Heavyweight Seeds)
5 (1)
N/A THC
  • Feminized
  • Autoflowering
Pack (number of seeds)
$42.5
Champion (Heavyweight Seeds) Heavyweight Seeds
4/20 Deal
Champion (Heavyweight Seeds)
0 (0)
N/A THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
$42.5 $62.54 70.83 Save 8.29 $114.66 141.65 Save 26.99
Waist Deep Auto (Heavyweight Seeds) Heavyweight Seeds
4/20 Deal
Waist Deep Auto (Heavyweight Seeds)
0 (0)
N/A THC
  • Feminized
  • Autoflowering
Pack (number of seeds)
$42.41 $62.42 70.69 Save 8.27 $114.44 141.38 Save 26.94
K.O. Kush (Heavyweight Seeds) Heavyweight Seeds
4/20 Deal
K.O. Kush (Heavyweight Seeds)
0 (0)
N/A THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
$42.5 $62.54 70.83 Save 8.29 $114.66 141.65 Save 26.99
Jackpot Auto (Heavyweight Seeds) Heavyweight Seeds
4/20 Deal
Jackpot Auto (Heavyweight Seeds)
0 (0)
N/A THC
  • Feminized
  • Autoflowering
Pack (number of seeds)
$42.48 $62.52 70.8 Save 8.28 $114.61 141.59 Save 26.98
High Density Auto (Heavyweight Seeds) Heavyweight Seeds
4/20 Deal
High Density Auto (Heavyweight Seeds)
0 (0)
N/A THC
  • Feminized
  • Autoflowering
Pack (number of seeds)
$42.5 $62.54 70.83 Save 8.29 $114.66 141.65 Save 26.99
Dream Machine (Heavyweight Seeds) Heavyweight Seeds
4/20 Deal
Dream Machine (Heavyweight Seeds)
5 (2)
N/A THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
$42.5 $62.54 70.83 Save 8.29 $114.66 141.65 Save 26.99
2 Fast & 2 Vast Auto (Heavyweight Seeds) Heavyweight Seeds
4/20 Deal
2 Fast & 2 Vast Auto (Heavyweight Seeds)
5 (4)
N/A THC
  • Feminized
  • Autoflowering
Pack (number of seeds)
$42.48 $62.52 70.8 Save 8.28 $114.61 141.59 Save 26.98
Diesel Drift (Heavyweight Seeds) Heavyweight Seeds
4/20 Deal
Diesel Drift (Heavyweight Seeds)
0 (0)
N/A THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
$42.78 $62.97 71.31 Save 8.34 $115.44 142.61 Save 27.17
Turbo Bud Auto (Heavyweight Seeds) Heavyweight Seeds
4/20 Deal
Turbo Bud Auto (Heavyweight Seeds)
0 (0)
N/A THC
  • Feminized
  • Autoflowering
Pack (number of seeds)
$42.43 $62.45 70.72 Save 8.27 $114.49 141.44 Save 26.95
Massive Midget Auto (Heavyweight Seeds) Heavyweight Seeds
4/20 Deal
Massive Midget Auto (Heavyweight Seeds)
5 (2)
N/A THC
  • Feminized
  • Autoflowering
Pack (number of seeds)
$42.41 $114.42 141.36 Save 26.94
Fast & Vast Auto (Heavyweight Seeds) Heavyweight Seeds
4/20 Deal
Fast & Vast Auto (Heavyweight Seeds)
4.7 (6)
N/A THC
  • Feminized
  • Autoflowering
Pack (number of seeds)
$42.43 $62.45 70.72 Save 8.27 $114.49 141.44 Save 26.95
Short & Sweet Auto (Heavyweight Seeds) Heavyweight Seeds
4/20 Deal
Short & Sweet Auto (Heavyweight Seeds)
0 (0)
N/A THC
  • Feminized
  • Autoflowering
Pack (number of seeds)
$42.5 $62.54 70.83 Save 8.29 $114.66 141.65 Save 26.99
Top review
avatar
Anonymous
9 November 2019
5
Thanks to Herbies!!! 7 out of 7 seeds germinated! No problems at all! The quality is top - 10/10!
Top review
avatar
0_o
29 September 2019
5
Another fantastic strain from Heavyweight Seeds. Big yields, easy to grow. The plants produce large, dense buds with a rich, fruity taste. Its powerful high hits hard and fast. Within 10 minutes, you'll probably be laughing. Highly recommended.
Top review
avatar
A7iiiphoto
21 July 2021
5
🔥🔥🔥😭

Heavyweight Seeds: A Collection Of Peculiar Cannabis Strains

The history of this Spanish seedbank is said to have begun in 2008 with a private collection of mother plants gathered by a certain long-time grower. These genetics were of such high quality that the success of the seeds produced from them was practically guaranteed. The founders of the company spent two years crossing these plants and perfecting their cultivation and selection processes, and in 2010, they were ready to enter the European seed market and take it by storm. Now, a decade later, Heavyweight Seeds’ catalog contains many of the massive yielders and hard-hitters that are so appealing to cash-crop growers and amateurs alike.

heavyweight seeds feminized seeds

Only the Hardiest Plants Make It to the Customer

Besides the obvious method of selecting only the best specimens in terms of yields, effects, aromas and tastes, the breeders at Heavyweight Seeds act like drill sergeants at a boot camp, using the ‘what doesn’t kill them makes them stronger’ philosophy. During germination, they subject the seeds to less-than-optimal and fluctuating humidity levels and temperatures, mercilessly culling all the ‘wimps’. The only survivors are therefore only those plants that have enough vigor and will to live. Of course, this also means their progeny will be strong and hardy right out of the gate.

only the hardiest plants make it to the customer

5 Top Heavyweight Seeds’ Strains for Every Taste

Whether you like a stimulating buzz, a heavy stone or a hybrid effect that puts a warm and fuzzy blanket over your whole being, you’re sure to find a strain of weed to your liking in this short list of Heavyweight Seeds’ bestsellers.

Fruit Punch Auto: The One to Get You in the Party Spirit

This strain is celebrated for its sweet, clean and strong fruity aroma with notes of lemon and mango and for its uplifting high. Smoke Fruit Punch Auto when you’re chilling with your friends or going to a party: you’ll feel happy, animated, and eager to talk and laugh. And when you consume it on your own, this Sativa-dominant strain will spark your creativity, make you focus on the task at hand, and give you enough energy to finish what you started. With 21% THC and a healthy dose of CBD to boot, the effects hit fast and last a long while.

Extreme Impact Auto: Knock Yourself Out, Literally

People choose this autoflower for its blissful yet heavy-handed relaxation. With 90% Indica in its genetic makeup, it’s obvious that Extreme Impact Auto is best consumed in the evening when all chores are done, you’re positioned safely on the couch, and you have the snacks and the remote ready right next to your bong. If not, trying to go anywhere to fetch anything will be a slow and heavy task, and its 21% THC will feel like a ton of weight on your shoulders. Another feature of this strain’s almost pure Indica heritage is the thickly sweet and earthy smoke that reminds of the best-imported hashish.

Fast & Vast Auto: No Trade-Off Between Speed and Size

The times when ‘autoflowering’ meant small size and puny yields are over, but it’s still not so easy to strike a balance between how many days you spend on your grow and how much bud you harvest. With Fast & Vast Auto, this is no issue: the plants get large, the colas dense and massive, and all this takes only 8 weeks from seed. Just add 3 more weeks of curing and you’re all set, with numerous fragrant sweet and earthy buds providing a strong and pleasant body stone.

2 Fast & 2 Vast Auto: An Overall Improvement with a Social Turn

Those interested in the speed and productivity of Fast & Vast Auto will certainly appreciate its new and improved version that received an injection of Northern Lights genetics. 2 Fast & 2 Vast Auto got stronger at all points, including a higher THC content of up to 18-20%. Moreover, the effects are different – expect an engaged, active and social high, perfect for shooting the breeze with your friends, chatting and laughing. You’ll also fall in love with the pungent fruity smell and taste, which are amazing if the buds are properly cured.

Green Ninja: Stealthy and Deadly

Choose this Indica-dominant plant for a grow where compact size and discreet smell are a must. Despite developing lots of dense and resinous buds, Green Ninja belongs to a relatively rare family of low-odor strains. This fact will be appreciated by many indoor and outdoor growers who can’t afford to draw any attention to their secret garden. The fruity flavor with a spicy background is delicious, and the effects kick butt while offering relaxation for both body and mind – a perfect medicine against pain, as well as stress and anxiety.

Seeds Which Have Real Weight

Heavyweight Seeds use harsh germination techniques. First, the seeds are placed in areas with variable humidity and temperature, thereby breeders make them germinate under difficult conditions. After that, they only work with plants that have passed this strength test. This process ensures that new seeds from these plants can succeed anywhere and will bring a huge yield of the highest quality.

Official website: Heavyweight Seeds

Heavyweight Seeds grow info

Last updated: 25 April 2026
Why Choose Herbies to Buy Heavyweight Seeds Seeds in Canada

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  • Thousands of positive customer reviews worldwide
  • Wide selection of authentic Heavyweight Seeds Seeds genetics
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Written by
Sylvia Johnson
Indoor growing expert and cannabis writer

Sylvia is an indoor cultivation specialist with a passion for plant environments. She shares beginner-friendly grow tips and lighting expertise through Herbies Seeds and the Indoor Growing community on Reddit.

Translated by
Herbies Team
Reviewed by
Jessica Turner
Cannabis writer and social activist
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