Permanent Marker XL Auto > Sweet Seeds

Permanent Marker XL Auto® by Sweet Seeds® – An XL Autoflower with 23–30% THC

Permanent Marker XL Auto® brings the raw intensity of modern Californian genetics into a fast, high-yielding XL autoflower format. Created by crossing Permanent Marker with Permanent Jealousy XL Auto®, this 8th-generation autoflower delivers extreme potency, heavy resin production, and a bold, complex terpene profile.

With THC levels ranging from 23% to 30%, it stands among the strongest autoflower cannabis seeds in the Sweet Seeds® lineup. From seed to harvest in just 8–9 weeks, it combines speed with true Cali-style power.

Genetics & Plant Structure – Cali Power in Autoflower Form

This strain features 66.6% indica, 33.3% sativa, and only 0.1% Ruderalis genetics. The result is a vigorous plant with a medium-to-tall profile and an open structure that supports strong airflow and consistent light penetration.

Plants typically reach between 50–130 cm, making them adaptable to indoor grow tents while still performing strongly outdoors. Thick, compact, and heavily resin-coated buds develop along sturdy lateral branches.

• Genetics: Permanent Marker x Permanent Jealousy XL Auto®
• Type: XL Autoflower
• THC: 23–30%
• CBD: ~0.1%
• Lifecycle: 8–9 weeks from germination
• Indoor yield: 400–550 g/m²
• Outdoor yield: 50–160 g per plant
• Height: 50–130 cm

Heavy Resin Production – Built for Extractions

Permanent Marker XL Auto® produces thick, dense buds completely coated in large, glistening trichomes. This exceptional resin output makes it an excellent choice for solventless and solvent-based extractions.

Its terpene intensity translates beautifully into concentrates, preserving its sweet, Cookies-inspired complexity.

Flavor & Terpenes – Candy, Gummy, Cookies & Diesel

The terpene profile is bold and unmistakably modern. Sweet candy and gummy notes dominate the aroma, layered with classic Cookies-family nuances and subtle mint undertones.

An earthy base with Skunky depth and light Diesel accents adds structure and complexity. On the inhale, expect sweet creamy tones with a fresh, slightly mentholated finish.

Effects – Creative Lift with Relaxed Depth

The effects begin with a clear, uplifting cerebral rush.

Creativity flows easily, mood elevates, and focus sharpens before transitioning into a pleasant body relaxation. Despite its high THC level, the experience remains balanced rather than overwhelming, making it ideal for evening wind-down sessions without full sedation.

Why Choose Permanent Marker XL Auto®?

• Very high THC levels up to 30%
• Fast 8–9 week seed-to-harvest cycle
• Modern Californian Cookies genetics
• Excellent resin production
• XL autoflower yields

Who Is It For?

• Growers seeking high-THC autoflower seeds
• Fans of Cali Cookies and gummy flavors
• Extraction-focused cultivators
• Users wanting strong yet balanced evening effects

Discover More Sweet Seeds® Genetics

Explore the collection here: Sweet Seeds®

FAQ – Permanent Marker XL Auto®

How strong is Permanent Marker XL Auto®?

It contains between 23% and 30% THC, making it one of the most potent autoflowers available.

How long from seed to harvest?

Approximately 8–9 weeks.

Is it suitable for extractions?

Yes, its heavy trichome production makes it ideal for concentrates.

How tall does it grow?

Between 50 and 130 cm.

What does it taste like?

Sweet candy and gummy flavors with Cookies, mint, earthy and subtle Diesel undertones.