Permanent Marker seeds Australia — Seed Junky Genetics' back-to-back Strain of the Year, High Times 2022 and Leafly 2023. (Biscotti × Jealousy) × Sherb Bx1. The signature is the marker note — a soapy, solvent-like floral top note sitting over candy, cookie dough, and gas — backed by extreme resin and 28-35% THC. One of the most decorated genetics in the modern catalogue, and a pack that rewards being run properly. If you're new to running packs, see our phenohunting guide before you start.
Biscotti × Jealousy × Sherb Bx1 — The Lineage Behind Permanent Marker
Permanent Marker is a Seed Junky Genetics cross: (Biscotti × Jealousy) × Sherb Bx1. Biscotti and Jealousy were crossed first to concentrate the Cookies-family layering — the sweet, doughy, gassy core that runs through the Seed Junky catalogue — and that F1 was then crossed into Sherb Bx1 to tighten structure, deepen colour, and pull out the distinctive terpene direction the strain is named for. The result is a three-way lineage that reads as more than the sum of its parents: the cookie-dough sweetness of Biscotti, the gassy dessert complexity of Jealousy, and the floral, almost solvent-like top note that emerges from the Sherb backbone.
That top note is the whole story. Permanent Marker is named for it — a soapy, floral, faintly chemical aroma that growers describe as smelling like a fresh marker or sharpie. It's a polarising profile, and that's precisely why it won. High Times named it 2022 Strain of the Year; Leafly followed with 2023 Strain of the Year. Back-to-back recognition is rare — most strains that win one award are eclipsed by the next drop. Permanent Marker held, and in the years since it has become a breeding parent in its own right, throwing crosses across the modern exotic catalogue.
Terpene Profile — The Marker Note Over Candy and Gas
Permanent Marker is myrcene, limonene, and caryophyllene dominant, with linalool driving the signature. The myrcene provides the earthy, creamy base; limonene brings the candy-citrus lift; caryophyllene contributes the gas and pepper backbone from the Cookies heritage. But it's the linalool that makes Permanent Marker recognisable from across a room — the floral, soapy, solvent-like note that the strain is named for. Few modern genetics express linalool this prominently, and fewer still hold it as cleanly through cure.
The best phenotypes carry all four simultaneously: the marker note on top, candy and cookie dough through the mid-palate, and gas on the finish. Phenotypes where the marker note is absent or buried read as a competent Cookies cross but miss what makes Permanent Marker worth running. The profile develops late and develops through cure — this is not a strain to evaluate early.
Dominant Terpenes
Myrcene — earthy musk, creamy base · Limonene — citrus brightness, candy lift · Caryophyllene — pepper, gas, spice backbone · Linalool — floral, soapy, the marker note
For a full breakdown of how to read and evaluate a cannabis terpene profile, see our complete terpene guide for Australian collectors.
Phenotype Variation — What to Expect Across the Pack
Permanent Marker shows variation consistent with its three-way lineage. Biscotti-leaning phenotypes express the densest bud structure and the strongest cookie-dough base beneath the marker note. Jealousy-leaning phenos push the gassy, dessert complexity harder and tend to show more colour. The keepers — where the linalool marker note is clearest and most present — generally sit between the two parent directions rather than pulling hard to either side. This is the same behaviour the genetics show across formats: the balance point is where the strain expresses best.
Colour expression is a Permanent Marker signature. Cool night temperatures in the final two to three weeks of flower will bring out deep purple hues in phenotypes carrying strong Sherb Bx1 expression. Resin production is heavy across the pack — even the weaker phenotypes frost up — but the combination of the marker note, dense structure, and colour is what marks a keeper.
Sigma Secrets
The marker note is cure-dependent and develops late. Don't make selections off green, freshly-chopped flower — at that stage most phenotypes read as generic Cookies-gas and the linalool signature hasn't surfaced. Cure at 60% RH for a minimum of six weeks before evaluating, and pull your final keeper decision out to week eight if you can. The difference between a two-week and an eight-week cure on Permanent Marker is the difference between a good Cookies cross and the strain that won two Strain of the Year awards. Growers who evaluate early routinely discard their best plant.
What to Hunt For
The keeper in this pack has the linalool marker note present and clean after a proper cure — soapy, floral, slightly chemical — sitting clearly above the candy-gas base rather than buried under it. Dense, resin-coated bud formation with tight internodes. Deep purple colour development in the final weeks without forcing. The profile should intensify through cure, not fade. Any phenotype where the marker note is flat or absent at week six of cure is a competent plant but not the one worth preserving. Give the pack its full flowering window and evaluate late — Permanent Marker does not show its hand early.
Growing Permanent Marker Seeds in Australia
Permanent Marker is rated moderate difficulty — not demanding, but it rewards a grower who manages structure and environment through flower. Height is medium to tall and the plant responds well to topping and LST early in veg. Flattening the canopy before the flip improves light penetration and lateral development, which feeds directly into yield and bud density across the whole plant. The Cookies-family genetics are sensitive to overfeeding, particularly nitrogen into the stretch — keep feeds moderate and balanced through mid-flower.
Indoors, Permanent Marker runs 8-10 weeks in flower with indoor yield potential of 450-550g/m² under optimised conditions. Bud structure is dense, so airflow through flower is important to manage moisture retention. Odour is significant in late flower — the linalool and myrcene combination produces a strong, distinctive aroma, so carbon filtration is essential for indoor grows. Flushing two weeks out pays off in burn quality and flavour clarity.
Outdoors in Australia, Permanent Marker is well-suited to warmer coastal regions in Queensland and New South Wales. Photoperiod plants are planted in spring and harvested in mid-to-late autumn — roughly April through May in most Australian climates. Plants given space and full sun develop strong lateral structure with outdoor yields of 400-600g per plant achievable in the right conditions. Watch trichome development rather than the calendar — the best phenotypes signal readiness through terpene intensity and resin milkiness.
Sigma Secrets
Permanent Marker is one of the stronger solventless candidates in the catalogue. Trichome density is heavy and the linalool-forward profile presses into a rosin that holds the floral-gas marker note in a way very few genetics replicate — it's a distinctive, immediately recognisable extract. For the cleanest expression, press from fresh frozen rather than dry-cured material; the marker note survives the freeze and comes through brighter. Assess trichome head development under magnification before harvest — the best Permanent Marker phenotypes throw large, fully-formed heads that survive agitation and yield well in ice water.
Frequently Asked Questions — Permanent Marker Seeds Australia
What is Permanent Marker?
Permanent Marker is a feminised photoperiod cross from Seed Junky Genetics — (Biscotti × Jealousy) × Sherb Bx1 — named for its distinctive soapy, floral, marker-like terpene note. It was named High Times' 2022 Strain of the Year and Leafly's 2023 Strain of the Year, a rare back-to-back recognition, and has since become a significant breeding parent in the modern exotic catalogue.
What are the genetics of Permanent Marker?
Permanent Marker is (Biscotti × Jealousy) × Sherb Bx1. Biscotti and Jealousy were crossed first to concentrate the Cookies-family sweetness and gas, and that F1 was crossed into Sherb Bx1 to tighten structure, deepen colour, and pull out the floral marker note the strain is named for.
What does Permanent Marker smell and taste like?
A soapy, floral, slightly chemical top note — driven by linalool — sitting over candy sweetness, cookie dough, and gas. The marker note the strain is named for is the defining characteristic and develops most fully through an extended cure. On the exhale, caryophyllene brings pepper and spice.
How strong is Permanent Marker?
Permanent Marker tests in the 28-35% THC range across verified sources, depending on phenotype and growing conditions. CBD is low — typically below 1%. It is a potent indica-dominant hybrid (70/30) with a euphoric, mentally active onset that settles into a relaxed body effect.
How long does Permanent Marker take to flower?
Permanent Marker runs 8-10 weeks in flower. Don't rush the finish — the marker note and the purple colour expression develop in the final weeks, and the terpene profile continues to build through cure.
Is Permanent Marker suitable for outdoor growing in Australia?
Yes. Permanent Marker performs well outdoors in warmer Australian climates, particularly coastal Queensland and New South Wales. Planted in spring and harvested in mid-to-late autumn (April-May), plants with space and full sun can reach 400-600g per plant.
Is Permanent Marker good for solventless extraction?
Yes — Permanent Marker is one of the stronger solventless candidates in the catalogue. Trichome density is high and the linalool-forward profile presses into a rosin with a distinctive floral-gas character. Press from fresh frozen for the clearest expression of the marker note.
Are Permanent Marker seeds available in Australia?
Yes. Sigma Seeds stocks Permanent Marker feminised seeds Australia-wide with tracked shipping from within the country and a full germination guarantee.
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