From the lab panel — 17-22% THC, <1% CBD. From grower reports — 550-650 g/m² yield, earthy/sweet dominant in cured flower. moderate grow.

North Atlantic Seed Company lists this at $37.80 — above the median of $25.98 across 84 listings. Pack options: 3-seed at $37.80, 5-seed at $54.00, plus larger sizes.

Lineage: Afghani x Skunk #1 — two workhorses from the old-school catalog that together built one of the most-grown indica cuts of the past two decades. Critical feminized keeps that heritage intact while pushing yields into the 550–650 g/m² range indoors, which is the part most growers actually care about. Flowering wraps in 7–8 weeks, so you're not waiting around. THC tests between 17–22%, sitting in a range that's strong without being disorienting — earthy and sweet on the nose, nothing exotic, just clean and consistent. It handles both indoor and outdoor setups without much complaint, though moderate-difficulty means first-timers should have one grow cycle under their belt before running it.

Best for intermediate growers chasing heavy harvests on a tight schedule who don't need flashy terpene profiles to justify the run.

Genetics & Lineage

Critical traces its genetics to Afghani x Skunk #1. This indica-dominant feminized seed produces plants that express the best traits of its parent lineage, delivering consistent results for growers of all experience levels. Bred by North Atlantic Seed Company, each seed is selected for genetic stability, terpene expression, and vigor.

Effects & Experience

Users report primarily relaxed and sleepy effects, making this strain ideal for evening use and unwinding after a long day. The body-centered stone builds gradually, easing tension and promoting deep physical relaxation. With THC levels reaching 22%, this offers a well-balanced experience suitable for most users with some cannabis familiarity.

THC Level & Potency

Critical delivers THC levels of 17-22%, placing it in the moderate-to-strong range that most regular consumers find comfortable. CBD content is minimal, so the psychoactive effects are front and center. The onset typically arrives within 5-10 minutes, settling into the body as a warm, heavy relaxation.

Growing Critical

Critical is rated as moderate difficulty, making it suitable for growers with some experience. Basic knowledge of nutrient schedules, pH management, and environmental controls will help maximize results.

Indoor Growing: Expect a flowering time of 7-8 weeks with yields of 550-650 g/m². Plants typically reach 80-150 cm indoors. This strain responds exceptionally well to SCROG (Screen of Green) and LST (Low Stress Training), which can boost yields significantly. Maintain temperatures between 68-80°F with relative humidity around 40-50% during flowering.

Outdoor Growing: This versatile strain performs well in both indoor and outdoor environments. Outdoor growers in warm climates can expect harvest from late September through October. Watch for humidity during late flowering to prevent bud rot, especially with the dense, heavy buds this strain produces.

Flavor, Aroma & Terpene Profile

Critical features a earthy, sweet terpene profile that develops complexity throughout the flowering cycle. A smooth, candy-like sweetness defines the flavor, with subtle complexity on the exhale. The aroma intensifies significantly during the final 2-3 weeks of flowering — carbon filtration is recommended for indoor grows requiring discretion.

Medical Benefits

While individual experiences vary, Critical is commonly reported to help with stress relief, chronic pain, insomnia, and muscle tension. The deeply relaxing effects make it a popular choice among medical users seeking nighttime relief. As with any cannabis strain, start with a low dose and increase gradually. Consult a healthcare professional before using cannabis for medical purposes.

Who Should Grow Critical?

This strain is ideal for intermediate growers ready to push their skills and be rewarded with superior results. If you're looking for evening relaxation and deep stress relief, this is your strain.

Why Buy Critical from Seennabis?

When you purchase Critical through Seennabis, you are buying directly from North Atlantic Seed Company — America's most trusted seed bank. Every order includes verified genetics, discreet shipping, and responsive seller support. North Atlantic Seed Company has completed over 147 sales.

Critical vs North Atlantic Seed Company

Critical is one of the most popular strains available through North Atlantic Seed Company (NASC), America's #1 voted seed shop for 2024 and 2025. Based in Maine, NASC has built an exceptional reputation for lightning-fast US shipping, generous bonus seed programs, and a curated catalog of 2,800+ strains from top breeders worldwide. This strain delivers reliable quality with earthy and sweet flavors that American growers trust.

While NASC offers this strain directly through northatlanticseed.com, Seennabis provides a marketplace experience with deeper content and broader comparison tools. If you've been searching for “NASC Critical” or “Critical North Atlantic Seed Company,” you've found the most comprehensive breakdown available — with growing guides, effect profiles, and cross-breeder comparisons that NASC product pages don't provide.

Why Buy NASC Seeds on Seennabis?

North Atlantic Seed Company is a top-tier US marketplace — and Seennabis adds the full picture:

• Cross-marketplace comparison: Compare Critical from NASC against the same strain from other seed banks like Seedsman, ILGM, and Barney's Farm — all on one page.
• Deeper grow intelligence: Detailed cultivation guides, grower-match tools, and effect breakdowns that go beyond NASC's standard product listings.
• Global selection: Access strains from European breeders like Dutch Passion, Sensi Seeds, and Zamnesia alongside US favorites — 1,300+ strains from 15+ seed banks.
• Verified community: Real grower reports with yield data and cultivation tips from the Seennabis community.