100% success rate with these seeds, and a great strain! I tried some seeds from another distributor, and they were all duds. Had a few of these left over, from a few years ago and they grew long tap roots in one day! Very happy with the quality of seeds at the seed pharm.
Austin, on Pineapple Express Feminized Seeds, November 2025
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Autoflower · Critical Mass x OG Kush
Critical Kush Autoflower Seeds
Critical Kush Autoflower crosses Critical Mass with OG Kush and runs it on an autoflowering clock: an almost pure indica that flowers on its own, packs dense, heavy buds and smells of earth, spice and Kush fuel with a citrus lift. 21% THC on the label, and around 550 g per plant outdoors.
- Autoflower. Flowers on age, no light change needed
- Almost pure indica. Broad leaves and dense colas
- Heavy for an auto. About 550 g per plant outdoors
$45 away from 10 free seeds and free shipping.
$0$100 · 10 free seeds + free shipping$200 · 20 free
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Shipping is $10, free over $99. Orders over $100 get 10 free seeds, and orders over $200 get 20. Every pack is covered by our 90% germination guarantee. Charged in USD.
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Critical Mass and OG Kush
Critical Mass is known for weight; OG Kush for resin and a fuel-and-pine nose. Critical Kush puts the two together in a near-pure indica with short internodes, wide leaves and colas that fill out fast. This autoflower version keeps that build and adds ruderalis genetics, so the plant starts flowering by itself after its first few weeks of growth.
Aroma
Earthy and spicy, with an old-school hash note from the Critical side and Kush fuel and pine from the OG. A citrus lift shows near harvest. It is a strong smell for a small plant, so run a filter indoors.
Strain label
Critical Kush Autoflower Seeds · The Seed Pharm- Seed type
- Autoflower Seeds
- Lineage
- Critical Mass x OG Kush
- Indica / sativa
- Indica-dominant (near 100% Indica)
- THC
- 21% THC
- Flowering time
- 7-8 weeks
- Height
- Medium (100-150 cm)
- Outdoor yield
- 550 g per plant
- Grows
- Indoor/Outdoor
Growing it? Read our Critical Kush grow guide.
How to grow Critical Kush Auto
Sow it straight into its final pot, because autoflowers lose time to transplant shock. Run 18/6 or 20/4 light from seed to harvest. Skip topping; if you want a wider plant, bend the main stem gently and tie it down in the first weeks so the side branches catch up.
The dense indica buds are the main risk. Keep humidity low once flowers form, remove the lower bud sites that never see light, and give the plant steady airflow. Outdoors the label gives about 550 g per plant. Start it once nights stay mild and it can finish before the fall rain arrives.
Read next: Autoflower outdoor growing · How to germinate seeds · Prairie guide
Critical Kush Auto pack prices
| Pack | Price | Per seed | You save | Bonus seeds | Shipping |
|---|---|---|---|---|---|
| 3 seeds | $39 | $13.00 | Base price | None | $10 |
| 5 seeds | $55 | $11.00 | $10 (15%) | None | $10 |
| 10 seeds | $105 | $10.50 | $25 (19%) | 10 free | Free |
| 20 seeds | $180 | $9.00 | $80 (31%) | 10 free | Free |
Prices in USD. Savings are against the 3-seed price per seed. Bonus seeds are added at checkout once your whole order passes $100, and 20 once it passes $200.
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Critical Kush Autoflower Seeds
Critical Kush Autoflower crosses Critical Mass with OG Kush and runs it on an autoflowering clock: an almost pure indica that flowers on its own, packs dense, heavy buds and smells of earth, spice and Kush fuel with a citrus lift.
From $39
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White Widow Autoflower Seeds
White Widow Autoflower takes the Brazilian sativa x South Indian indica classic and adds ruderalis, so the plant flowers on its own clock.
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Autoflower
Critical Purple Autoflower Seeds
Critical Purple Auto is an indica-heavy autoflower that finishes on its own schedule and can colour up when nights turn cool.
From $39Critical Kush Auto questions
Do I need to change the lights for Critical Kush Auto?
No. It flowers on age. Keep 18/6 or 20/4 from seed to harvest.
Can I top Critical Kush Auto?
It is safer not to. An autoflower runs on a fixed clock, so recovery time costs yield. Low-stress training, bending and tying the stem, works better.
How much does it yield outdoors?
The label gives about 550 g per plant outdoors in good conditions.
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