Auto Permanent Marker seeds Australia — the back-to-back Strain of the Year genetics adapted for automatic flowering. The same Biscotti × Sherb Bx1 × Jealousy cross that won Leafly 2023 and High Times 2022, now in a compact 9-10 week seed to harvest format. 26-30% THC, the soapy floral marker note intact, and a 70-100cm footprint that fits setups the photoperiod version can't. If you're new to running packs, see our phenohunting guide before you start.
Auto Permanent Marker carries the same three-way lineage as the photoperiod version — (Biscotti × Jealousy) × Sherb Bx1 — with ruderalis genetics introduced to trigger automatic flowering. The cross structure remains intact: Biscotti and Jealousy crossed first to concentrate the Cookies-family layering, then that F1 crossed into Sherb Bx1 to tighten structure and deepen terpene complexity. The ruderalis introduction compresses the lifecycle without significantly altering the terpene direction — the marker note that defines Permanent Marker is present in quality auto phenotypes, though its intensity relative to the photoperiod equivalent will vary.
The Auto Permanent Marker terpene profile follows the same direction as the photoperiod version — Myrcene base, Limonene brightness, Caryophyllene spice backbone, and Linalool driving the distinctive soapy-floral marker note. The question collectors most often ask about auto versions of complex photoperiod genetics is whether the signature terpene expression carries through. With Auto Permanent Marker, the answer is yes in the best phenotypes — the linalool-driven marker note is present and recognisable — but the intensity and complexity are compressed relative to the photo version. The auto lifecycle leaves less time for terpene accumulation in the final weeks, which is where the marker note develops most fully in the photoperiod plant.
Auto Permanent Marker shows variation consistent with the three-way lineage. Biscotti-leaning phenotypes express the densest bud structure and strongest cookie-dough base beneath the marker note. Jealousy-leaning phenos push the gassy, dessert complexity harder. The best phenotypes — where the linalool marker note is clearest and most present — tend to sit between the two parent directions rather than pulling hard to either side, consistent with the photoperiod version's behaviour.
What changes in the auto format is the phenotype expression. The auto presents more compact — 70-100cm versus the photoperiod's medium-tall structure — with tighter internodes and a faster transition into flower. The indica-dominant character (65% Indica / 35% Sativa) is more pronounced in the auto, producing a heavier, denser bud set and a more physical effect onset compared to the slightly more balanced expression of the photo version. Yield is lower per plant at 60-120g outdoors versus 400-600g for the photo, which reflects the fundamental trade-off of the auto format — speed and flexibility for yield ceiling.
Terpene Profile — In Detail
The practical implication: don't harvest early. The marker note in this auto, like the photo version, develops in the final weeks. A week-nine harvest on an auto that could run to week ten will produce a noticeably flatter profile. The terpene development curve is the same, just compressed into a shorter window.
Auto vs Photoperiod — What's Different
The core differences between Auto Permanent Marker and the photoperiod version come down to three things: lifecycle, footprint, and yield ceiling. The auto runs 9-10 weeks seed to harvest under any light schedule — no flip required, no seasonal timing for outdoor grows. The compact 70-100cm height suits balcony grows, stealth setups, and indoor spaces where the photoperiod's taller structure isn't viable. The yield trade-off is real — up to 500g/m² indoors for the auto versus 450-550g/m² for the photo, and a significant outdoor yield difference. For growers who value speed, flexibility, and a smaller footprint over maximum yield, the auto is the right format. For growers running a dedicated indoor space who want the full terpene expression and maximum yield potential, the photoperiod version is the stronger choice.
THC holds well at 26-30% — at the lower end of the photoperiod's range but still genuinely high for an auto and consistent with what the Permanent Marker genetics produce across formats. The effect profile is heavier and more indica-dominant than the photo version — couchlock is noted more frequently in auto reports, consistent with the 65/35 indica split.
Phenotype Variation — The Detail
Colour expression is present in the auto format — cool temperatures in the final two weeks develop purple hues in phenotypes with strong Sherb Bx1 expression. Resin production is consistently strong across the pack. Because this is an auto, phenotype hunting requires running multiple seeds simultaneously — plan your pack accordingly.
Sigma Secrets
The marker note in Auto Permanent Marker is cure-dependent — same as the photo version, just more so. The compressed auto lifecycle means less terpene accumulation time on the plant, which makes the post-harvest cure more critical, not less. Cure at 60% RH for a minimum of six weeks before evaluating phenotypes. The linalool expression will continue developing through the cure and the difference between a two-week and six-week cure on this auto is significant. Growers who evaluate at two weeks and dismiss a phenotype are frequently discarding a keeper.
What to Hunt For
The keeper in this auto pack has the linalool marker note present and clean after a proper cure — soapy, floral, slightly chemical — sitting above the candy-gas base. Dense, resin-coated bud formation. Colour development — purple expression — in the final two weeks without forcing. The profile should intensify through cure rather than fade. Any phenotype where the marker note is absent or flat at week six of cure is not worth preserving.
Growing Auto Permanent Marker Seeds in Australia
Auto Permanent Marker is rated moderate difficulty — accessible to experienced auto growers, manageable for those who have run a few packs previously. The compact 70-100cm structure needs minimal height management. Low-stress training in the first two to three weeks — bending and tying rather than cutting — opens the canopy and improves light distribution. Avoid topping or aggressive defoliation in the first three weeks — the auto lifecycle doesn't allow recovery time.
Seed to harvest runs 9-10 weeks under any light schedule. Indoor yield potential reaches 500g/m² under optimised conditions with 18-20 hours of light. The compact footprint and fast lifecycle make multiple indoor runs per year straightforward. Outdoors in Australia, the automatic flowering removes seasonal timing constraints — multiple runs through the warmer months are achievable in most Australian climates. Outdoor yield of 60-120g per plant reflects the compact auto structure — space plants adequately and provide full sun for the upper end of that range.
Odour through late flower is significant — the Linalool and Myrcene combination produces a strong, distinctive aroma that is detectable at distance. Carbon filtration is essential for indoor grows. Nutrient management should be conservative — start feeds at half strength and scale up. The Cookies-family genetics are sensitive to overfeeding, particularly nitrogen in late veg and early flower.
Sigma Secrets
Auto Permanent Marker is a solid solventless extraction candidate despite the lower per-plant yield of the auto format. Trichome density is high and the linalool-forward profile produces rosin with the same floral-gas character as the photoperiod version — just in smaller batches. The practical approach for extraction is running multiple Auto Permanent Marker plants simultaneously rather than waiting on a single large photoperiod run. Three or four auto plants in rotation provides a consistent harvest cadence and keeps fresh frozen material available for ice water extraction. Press rosin from fresh frozen for the clearest expression of the marker note — dry-cured material will produce a flatter, less distinctive flavour.
Frequently Asked Questions — Auto Permanent Marker Seeds Australia
What is Auto Permanent Marker?
Auto Permanent Marker is an autoflowering feminised version of Seed Junky Genetics' Biscotti × Sherb Bx1 × Jealousy cross — the genetics behind Leafly's 2023 Strain of the Year and High Times' 2022 Strain of the Year. 26-30% THC, the signature soapy-floral marker note, and a 9-10 week seed to harvest cycle with no light schedule required.
Is Auto Permanent Marker the same as the Permanent Marker photoperiod?
Same core lineage — Biscotti × Sherb Bx1 × Jealousy — with ruderalis genetics added for automatic flowering. The auto is more indica-dominant (65/35) than the photo version, more compact at 70-100cm, and has a lower outdoor yield ceiling. The marker note terpene expression is present in the best auto phenotypes but is less intense than the photoperiod equivalent due to the compressed lifecycle.
What does Auto Permanent Marker smell and taste like?
Soapy, floral, slightly chemical top note — driven by linalool — over candy sweetness, cookie dough, and gas. The marker note the strain is named for is present in quality phenotypes and develops fully through a proper six-week cure. On the exhale, caryophyllene brings pepper and spice.
How long does Auto Permanent Marker take from seed to harvest?
9-10 weeks seed to harvest under any light schedule. Don't harvest early — the linalool marker note develops in the final weeks and the cure is critical for full terpene expression.
What yield can I expect from Auto Permanent Marker?
Up to 500g/m² indoors under optimised conditions. 60-120g per plant outdoors. The lower outdoor yield relative to the photoperiod version is the fundamental auto format trade-off — compensate by running multiple plants in rotation.
Is Auto Permanent Marker suitable for outdoor growing in Australia?
Yes. Automatic flowering removes seasonal timing constraints, making multiple outdoor runs per season achievable in most Australian climates. The compact 70-100cm structure suits balcony and stealth outdoor setups. Full sun and adequate spacing are important for the upper end of the yield range.
Is Auto Permanent Marker good for solventless extraction?
Yes — trichome density is high and the linalool-forward profile produces rosin and ice water hash with a distinctive floral-gas character. Run multiple plants in rotation for a consistent extraction harvest cadence. Press fresh frozen for the clearest expression of the marker note.
Are Auto Permanent Marker seeds available in Australia?
Yes. Sigma Seeds stocks Auto Permanent Marker feminised seeds Australia-wide with tracked shipping from within the country and a full germination guarantee.
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