Space Jill cannabis strain sativa-dominant hybrid bud macro
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CANNABIS STRAINS

Space Jill

Sativa-dominant Hybrid · THC 18–22% · Space Queen × Jack Herer · TGA Subcool Genetics

JP
Cannabis Cultivation Specialist at ZenWeedGuide. Expert in strain genetics, terpene profiles, and grow room optimization across 15+ years of hands-on cultivation.

Space Jill: Cherry, Vanilla, and Jack Herer in Perfect Fusion

Space Jill is one of the most distinctive and memorable strains to emerge from the TGA Subcool Genetics catalog. A cross of Space Queen and Jack Herer, it combines the exotic cherry-vanilla fruitiness of Space Queen with the classic pine-spice cerebral energy of Jack Herer into a sativa-dominant hybrid that is simultaneously approachable and remarkable. For those who encounter it, the aroma alone — cherry, tropical, pine — is unforgettable. For those who grow it, its moderate difficulty, 8–9 week finish, and generous resin production make it one of the most rewarding TGA varieties.

18–22%
THC Content
<1%
CBD Content
Sativa-Hybrid
Dominant Type
8–9 Wks
Flower Time
KEY FACTS
  • Genetics: Space Queen × Jack Herer (TGA Subcool Genetics)
  • THC Range: 18–22%
  • Top Terpenes: Terpinolene, Ocimene, Caryophyllene
  • Main Effects: Euphoric, energetic, creative, uplifting cerebral high
  • Medical Uses: Depression, fatigue, ADHD, stress
  • Yield (Indoor): 400–500g/m² (resinous)
  • Flavour Profile: Cherry, tropical fruit, pine, vanilla undertone
  • Breeder: Subcool / TGA Genetics (The Green Avenger)

Origin & Genetics: TGA, Space Queen, and the Jack Herer Legacy

Subcool built TGA Genetics over two decades into one of the most respected underground breeding operations in North American cannabis history. Unlike the Dutch seed bank model focused on stability for mass market, Subcool bred for exceptional phenotypic expression — selecting individual plants for the most remarkable aroma, effect, or resin profiles and making those the basis for future crosses. Space Jill is a product of this philosophy applied to two of the strongest genetic foundations available.

Space Queen is itself a TGA creation — a cross of Romulan (a potent Canadian indica) and Cinderella 99 (a legendary fast-flowering, fruity sativa derived from Jack Herer, bred by Mr. Soul of Brothers Grimm). Space Queen is celebrated for its exceptional cherry and vanilla aroma, uplifting euphoric effects, and a tropical fruit complexity that is genuinely unusual in cannabis. It is one of the most aromatic strains produced by any breeder in the genre’s history.

Jack Herer — named after the legendary cannabis activist and author of The Emperor Wears No Clothes — was bred by Sensi Seeds in the Netherlands in the 1980s or early 1990s. A cross of Haze with Northern Lights #5 and Shiva Skunk, it won the High Times Cannabis Cup multiple times and became the reference point for what a premium sativa-dominant hybrid should deliver: clear-headed, energetic, resinous, and long-lasting. Its pine-spice terpene profile is instantly recognisable and deeply embedded in cannabis culture globally.

Space Jill’s genetic logic is straightforward: Space Queen brings the extraordinary aroma and the Cinderella 99 fast-flowering character; Jack Herer brings the cerebral energy, the resin architecture, and the structural stability needed to produce consistent phenotypes. The resulting offspring inherit the best traits of both parents in most individuals, making Space Jill unusually reliable phenotype-to-phenotype for an F1 cross.

TGA Subcool Genetics Family Tree

Space Jill belongs to a broader TGA genetics universe characterised by complex multi-generation crosses. Understanding the lineage helps situate Space Jill among its relatives and explains the recurring cherry, tropical, and pine notes across the TGA catalog.

Strain Genetics Key Traits Relation to Space Jill
Space Jill Space Queen × Jack Herer Cherry, tropical, pine; euphoric, focused Subject strain
Space Queen Romulan × Cinderella 99 Intense cherry-vanilla, uplifting Parent (mother)
Jack Herer Haze × NL#5 × Shiva Skunk Pine-spice, energetic, resinous Parent (father)
Cinderella 99 Jack Herer phenotype selection (Mr. Soul) Fast-flowering, fruity, tropical Grandparent (in Space Queen)
Chernobyl Trainwreck × Jack the Ripper × Trinity Lime, tropical, citrus; psychedelic TGA sibling catalog
Secret Weapon Trainwreck × White Widow Pine, lemon, focused energy TGA sibling catalog

Cannabinoid & Terpene Profile

Space Jill’s terpene profile is one of the most complex in the TGA catalog. Terpinolene drives the floral-citrus lift inherited from both Jack Herer and Cinderella 99 (via Space Queen). Ocimene contributes the tropical, sweet herbal notes that differentiate Space Jill from simpler pine-citrus sativas — this is where the cherry and tropical fruit character becomes aromatic rather than purely flavour-based. Caryophyllene provides the spicy backbone of the Jack Herer influence and the minor anti-inflammatory CB2 activity.

Compound Type Typical % Primary Effect Aroma Note
THC Cannabinoid 18–22% Euphoria, energy, creativity
CBD Cannabinoid <1% Minimal
Terpinolene Terpene 0.30–0.60% Uplifting, cerebrally stimulating Floral, citrus, fresh
Ocimene Terpene 0.25–0.50% Mood lift, tropical sweetness Sweet, herbal, cherry, tropical
Caryophyllene Terpene 0.15–0.30% Anti-inflammatory, CB2 activity Spicy, peppery, pine-woody
Myrcene Terpene 0.08–0.20% Minor relaxation, body ease Earthy, musky

Flavor Profile: From Terpene to Taste

Space Jill’s flavor complexity is unusual among hybrid cannabis varieties. The table below maps each major terpene to the corresponding flavour note experienced by the consumer, illustrating how the genetics translate to the palate.

Terpene Genetic Source Flavour Note Where Detected
Terpinolene Jack Herer / Cinderella 99 Pine, citrus, fresh floral First inhale; nose on break
Ocimene Space Queen lineage Cherry, tropical, sweet vanilla Mid-palate; aroma on cure
Caryophyllene Jack Herer / Haze Spicy, woody, peppery Exhale; back of throat
Myrcene Romulan (in Space Queen) Earthy, musky, herbal Background depth; dried flower aroma

Jack Herer’s Genetic Influence: Strains Descended from a Legend

Jack Herer is one of the most influential genetics in modern cannabis breeding. The table below surveys strains with Jack Herer in their lineage, contextualising Space Jill within this broader family and illustrating how different breeders have expressed its core character.

Strain Jack Herer Role Other Parent(s) Primary Character THC %
Space Jill Father Space Queen Cherry-tropical-pine, euphoric 18–22%
Cinderella 99 Grandparent (phenotype selection) Self-selection by Mr. Soul Tropical, fruity, fast-flowering 15–22%
J1 (Jack One) Father Skunk #1 Classic Haze, citrus, energetic 18–22%
Jack’s Cleaner Father The Purps Lemon-citrus, complex 16–20%
Critical Jack Father Critical+ Higher yield, classic Jack aroma 18–23%

Effects of Space Jill

Space Jill delivers a textbook premium sativa-dominant hybrid experience: euphoric, energetic, and creatively expansive, with enough body ease from the indica elements (Romulan via Space Queen) to remain comfortable over extended sessions. It is particularly prized for morning and midday use.

Phase 1: Euphoric Lift (0–20 min)

The onset combines Jack Herer’s clear-headed energy with Space Queen’s characteristic mood euphoria. The experience opens with a bright, expansive mental state — ideas flow freely, mood elevates noticeably, and there is an immediate reduction in mental fatigue or low-mood baseline. Unlike pure Haze varieties, this phase is not anxiogenic at moderate doses.

Phase 2: Creative Plateau (20–90 min)

The sustained middle phase is Space Jill’s signature. The cherry-tropical aroma quality seems to correlate directly with the whimsical, imaginative mental state the strain produces: users frequently report visual and conceptual creativity, free-associative thinking, and an absence of the tunnel-vision focus sometimes produced by pure-Jack descendants. This is a creative, exploratory headspace rather than a purely productive one. The body remains light and unencumbered.

Phase 3: Relaxed Resolution (90 min+)

As the session winds down, Space Jill transitions gracefully into mild relaxation. There is no abrupt drop, no anxious come-down. The Romulan influence in the Space Queen parent becomes slightly more apparent: a comfortable physical ease settles in. Total duration is 2–3 hours smoked, significantly longer with edibles. For medical applications including depression and fatigue, see our medical cannabis guides.

Growing Space Jill

Space Jill is rated moderate difficulty and performs best indoors, though outdoor grows in warm climates yield generously. The plant is notably resinous — trichome production is among the heaviest in the TGA catalog — which rewards growers who invest in proper nutrition and environmental control during late flower. The 8–9 week flower time is a significant advantage over longer-flowering sativas and makes Space Jill practical for regular production cycles.

Parameter Indoor Outdoor
Flowering Time 8–9 weeks Early October harvest
Yield 400–500g/m² 450–600g per plant
Height 80–120cm (with training) 120–160cm
Difficulty Moderate Moderate
Resin Production Very high (trichome-dense) Very high
Training Response Excellent to topping and LST LST recommended to control height

Drug Testing

THC from Space Jill is metabolised to THC-COOH identically to any other cannabis variety. Detection windows depend on use frequency, metabolism, and body composition — not strain. The table below provides general SAMHSA-cutoff guidance. Visit our drug testing guide for full detail.

Test Type Occasional User Regular User Daily User
Urine 3–7 days 10–21 days Up to 30+ days
Blood 1–3 days 3–7 days 7–14 days
Saliva 24–72 hours 3–5 days Up to 7 days
Hair Follicle Up to 90 days Up to 90 days Up to 90 days

Further Reading

Subcool / TGA Legacy Leafly: Space Jill Jack Herer: Sensi Seeds

Related Guides

Secret Weapon Strain Jack Herer Strain Terpinolene Guide Ocimene Guide Cannabis & Depression Indoor Growing Guide Drug Testing Guide All Strains
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