North Atlantic Seed Co. runs this as a indica feminized line — 23-28% THC lab range, diesel/earthy-dominant terps, 8-9 weeks from flip.

Lineage: Biscotti × Jealousy × Sherb BX1 — three resin-heavy cuts stacked into one feminized indica that tests consistently between 23–28% THC. The terpene profile skews diesel and damp earth, nothing fruity or candy-sweet, so if that's what you're after this isn't it. Indoors it pushes 400–500 g/m² after an 8–9 week flower period, and because it handles both indoor and outdoor environments it's workable for Canadian growers who run a greenhouse or a well-managed outdoor plot in warmer provinces like BC or Ontario — just watch your finish dates given the 8–9 week window.

Difficulty is moderate, meaning topping and basic canopy management are expected but you don't need years of experience to get a clean run. CBD sits below 1%, so the effect profile is THC-forward and sedating.

Best suited to experienced recreational growers who want a high-THC indica with a savory, fuel-driven nose rather than a sweet one.

Genetics & Lineage

Permanent Marker traces its genetics to Biscotti x Jealousy x Sherb BX1. 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 Co., 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 28%, this is a potent strain recommended for experienced users — newcomers should start low and go slow.

THC Level & Potency

Permanent Marker delivers THC levels of 23-28%, placing it in the high-potency category alongside powerhouses like Gorilla Glue and Girl Scout Cookies. 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 Permanent Marker

Permanent Marker 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 8-9 weeks with yields of 400-500 g/m². Plants typically reach 80-150 cm indoors. Standard training techniques like topping and LST will help manage height and improve light penetration. 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 dense flower formations.

Flavor, Aroma & Terpene Profile

Permanent Marker features a diesel, earthy terpene profile that develops complexity throughout the flowering cycle. Pungent fuel and chemical notes hit first, followed by an earthy, musky undertone. 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, Permanent Marker 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 Permanent Marker?

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 Permanent Marker from Seennabis?

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

Permanent Marker vs North Atlantic Seed Company

Permanent Marker 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 premium potency with diesel and earthy 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 Permanent Marker” or “Permanent Marker 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 Permanent Marker 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.