
Critical
Cannabis seeds
by CBD Seeds
Critical CBD Seeds — Heavy Indica Harvests in Under 8 Weeks
Critical is a feminised cannabis seed from CBD Seeds — a 90% Indica strain bred to produce absurdly heavy yields of dense, resinous buds within a 7-8 week flowering window. If you want a compact plant that fills jars without filling your ceiling, this is the seed to start with. We've stocked CBD Seeds for years, and Critical remains the strain customers come back for season after season. Three feminised seeds per pack, no males to cull, no wasted space.
Critical ships in a single pack size: 3 feminised seeds (SKU: CSCS0007). Every seed is female — plant all three and harvest all three. No sexing, no culling, no wasted pots or nutrients on plants you'll pull.
Why Critical Seeds Deserve a Spot in Your Grow Room
Critical by CBD Seeds is the kind of strain that makes growing feel almost too easy. The plants stay short and compact — rarely stretching beyond a metre indoors — so they fit comfortably under a standard 400W or 600W light without headroom panic. Branches thicken up fast, developing the kind of structural support you'd expect from a strain bred specifically to carry heavy colas. And they need it: Critical produces some of the fattest buds we've seen from any sub-8-week flowering strain, with indoor yields hitting 400-500g/m².
The real draw is the combination of speed and weight. A 7-8 week flowering period means you can run more cycles per year than most Indica-dominant genetics allow. Pair that with the yield figures and you're looking at one of the most productive strains gram-for-gram of time invested. The 14-16% THC sits in a comfortable middle range — enough to deliver a deep, full-body relaxation without the ceiling-scraping potency that leaves you unable to form sentences. The elevated CBD content rounds the effect out further, smoothing the edges into something genuinely pleasant rather than overwhelming.
One honest note: because the buds get so dense and heavy, you'll want to keep humidity in check during the final weeks of flowering. Fat, tightly packed colas and stagnant moisture are a recipe for bud rot. Good airflow and a dehumidifier in the room will save you headaches. This isn't a flaw — it's the trade-off for growing buds that literally bend branches under their own weight.
Flavour, Aroma, and the Critical Smoke
Crack open a cured jar of Critical and you get a smooth, fruity sweetness with an earthy undertone that sits somewhere between ripe stone fruit and damp forest floor. The smoke itself is thick but not harsh — the kind of dense exhale that coats the palate without making you cough. The CBD content seems to take the edge off the throat hit that pure THC-heavy strains sometimes deliver, making for a more rounded and repeatable smoke.
Compared to something like Royal Queen Seeds' Critical, which leans a touch more towards a skunky profile, the CBD Seeds version keeps things fruitier and smoother. If you've grown Skunk-lineage strains before and found the flavour too sharp, Critical from CBD Seeds is worth trying as the gentler alternative.
Growing Critical CBD Seeds — What to Expect
- Germinate your feminised seeds using the paper towel method or directly in a starter plug. Taproots typically emerge within 24-72 hours.
- Transplant seedlings into their final pots once the first true leaves appear. Critical stays compact, so 11-litre pots work well for indoor grows — no need for massive containers.
- Veg for 2-4 weeks under 18/6 lighting. The plants won't stretch much, so a shorter veg period is fine if space is tight. Topping or LST (low-stress training) during veg encourages a wider canopy and more even bud sites.
- Flip to 12/12 to trigger flowering. Buds begin forming within the first week and pack on weight rapidly from week 3 onwards.
- Support branches from week 5 — bamboo stakes or a trellis net will stop the heaviest colas from snapping lateral branches. This isn't optional with Critical; the buds genuinely get that heavy.
- Monitor humidity closely in weeks 6-8. Keep relative humidity below 50% and ensure good airflow between colas to prevent mould in those dense bud structures.
- Harvest at 7-8 weeks of flowering when trichomes shift from clear to milky-white. Amber trichomes indicate a more sedative effect — choose your harvest window based on preference.
| Specification | Detail |
|---|---|
| Seed Bank | CBD Seeds |
| Strain Name | Critical |
| Genetics | 90% Indica / 10% Sativa |
| Seed Type | Feminised (photoperiod) |
| THC Content | 14-16% |
| CBD Content | High |
| Flowering Time | 7-8 weeks |
| Indoor Yield | 400-500g/m² |
| Plant Height | Compact, under 1 metre indoors |
| Pack Size | 3 feminised seeds |
| SKU | CSCS0007 |
Running Critical in a tent? A complete grow kit with ventilation and carbon filter keeps those dense colas dry and your room discreet. If you're training the canopy flat, a trellis net pays for itself in more even light distribution and heavier harvests across the board.
Critical CBD Seeds vs. Other Heavy-Yielding Indica Strains
| Feature | Critical (CBD Seeds) | Typical Skunk Indica | Typical Kush Indica |
|---|---|---|---|
| Genetics | 90% Indica | 70-80% Indica | 80-90% Indica |
| THC | 14-16% | 15-20% | 18-25% |
| CBD | High | Low | Low-Medium |
| Flowering | 7-8 weeks | 8-9 weeks | 8-10 weeks |
| Indoor Yield | 400-500g/m² | 350-450g/m² | 350-500g/m² |
| Flavour | Smooth, fruity | Skunky, pungent | Earthy, pine, fuel |
| Effect Character | Deep relaxation, CBD-rounded | Heady, sometimes racy | Heavy body, couch-lock |
The standout difference with Critical is the CBD-to-THC ratio. Where most heavy-yielding Indicas push THC as high as possible and leave CBD as an afterthought, Critical deliberately keeps THC at 14-16% and pairs it with elevated CBD. The result is a smoke that relaxes without flattening you. If you've ever grown a 20%+ THC strain and found the effect too intense for regular use, Critical fills that gap.
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Medical disclaimer. This content is for informational purposes only and does not constitute medical advice. Consult a qualified healthcare provider before use of any substance.











