Unicorn by Staykeyed Seeds

Unicorn strain photo
Type mostly indicaFlower ±53 daysCross Yemen Girl × Tardis

1 other breeder's version of Unicorn — compare flowering times side by side →

Growers reach for Unicorn as an indica-leaning option, a cross of Yemen Girl × Tardis out of Staykeyed Seeds. Indoors it typically finishes flowering in around 53 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Unicorn grows against.

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Similar strains

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BreederStaykeyed Seeds
Typemostly indica
Flowering time±53 days
EnvironmentOutdoors, Greenhouse
LineageYemen Girl × Tardis
DescendantsRos'e, Sludge Hammer, Super Trooper, Bearwalker, Unicorn F2, Pegasus, Purple Danq, Cripps Pink, Unicorn Bacon, D.b. Treasure, Unicorn Bacon

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🧬 Explore the family: Yemen Girl · Tardis · Ros'e · Sludge Hammer · Super Trooper · Bearwalker · Unicorn F2 · Pegasus · Purple Danq · Cripps Pink

Ancestry Pedigree

Yemen Girl
Deluxe Seeds
Indica
Original Strains
Fast Mada
Deluxe Seeds
Madagascar Sativa
Original Strains
Unknown Strain
Original Strains
Tardis
Homegrown Natural Wonders
Oregon Diesel
Unknown or Legendary
NYC Diesel
Soma Seeds
Sour Diesel
Unknown or Legendary
Original Diesel
Unknown or Legendary
MassSuperSkunk
Unknown or Legendary
Super Skunk
Sensi Seeds
Skunk Nr1
Sensi Seeds
Skunk Nr1
The Seed Bank
Skunk Nr1
Cultivators Choice
Afghanistan Indica
Original Strains
Mexico Sativa
Original Strains
Colombia Sativa
Original Strains
Afghanistan Indica
Original Strains
Chem Dawg
Unknown or Legendary
Indica
Original Strains
DNL
Unknown or Legendary
RFK
Unknown or Legendary
Skunk
Unknown or Legendary
Skunk Nr1
Cultivators Choice
Northern Lights
Unknown or Legendary
Afghani Hawaiian
Unknown or Legendary
Afghani
Unknown or Legendary
Afghanistan Indica
Original Strains
Hawaii Hybrid
Original Strains
Blackberry
Unknown or Legendary
The Black
Unknown or Legendary
Afghani
Unknown or Legendary
Mexico Sativa
Original Strains
Vietnam Hybrid
Original Strains
Afghani
Unknown or Legendary
Timewreck
SubCools The Dank
Blood Wreck
SubCools The Dank
Trainwreck
Clone Only Strains
USA Hybrid
Original Strains
Trinity
Clone Only Strains
Mostly Sativa
Original Strains
Vortex
SubCools The Dank
Apollo 13
Unknown or Legendary
Genius
Unknown or Legendary
Jack Herer
Sensi Seeds
Northern Lights Nr5
The Seed Bank
Northern Lights 5 Skunk Nr1 F1 Hybrid
The Seed Bank
Northern Lights Nr5
The Seed Bank
Skunk Nr1
The Seed Bank
Original Haze
Cultivators Choice
Haze
Unknown or Legendary
Mexico Sativa
Original Strains
Colombia Sativa
Original Strains
Thailand Sativa
Original Strains
India Sativa
Original Strains
P75
Unknown or Legendary
Princess
Unknown or Legendary
Jack Herer
Sensi Seeds
Unknown Strain
Original Strains
P50
Unknown or Legendary
Princess
Unknown or Legendary
Shiva Skunk
Sensi Seeds
Space Queen
BC Growers Association
Romulan
Unknown or Legendary
Mostly Indica
Original Strains
Cinderella 99
Brothers Grimm
Princess
Unknown or Legendary
P94
Unknown or Legendary
Princess
Unknown or Legendary
Cinderella 88
Unknown or Legendary
Princess
Unknown or Legendary
P75
Unknown or Legendary

Growing Unicorn: what to expect

As an indica-leaning plant, expect a modest stretch after the flip (roughly 50–100%) and dense bud structure — which makes late-flower humidity discipline the main risk: keep RH in the 40s once buds fatten to stay ahead of mold. Growers familiar with Yemen Girl or Tardis will recognize much of its behavior. Whatever the listing says, the cut in YOUR tent is the ground truth: log feedings, readings, and photos, and let the trends — not the label — drive decisions.

Unicorn FAQ

How long does Unicorn take to flower?

Unicorn typically flowers in around 53 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Unicorn an indica or a sativa?

Unicorn is listed as mostly indica.

What are the parents of Unicorn?

Unicorn was bred from Yemen Girl × Tardis by Staykeyed Seeds.

What environment does Unicorn like?

Standard cannabis bands work well: VPD 0.8–1.1 kPa in veg and 1.0–1.4 kPa in flower, with humidity stepping down from 65–75% as a seedling to 40–50% in late flower. See the stage-by-stage table on this page.

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Facts compiled from public breeder listings. Growing Unicorn? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.

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Published by Cultivar (logmygrow.com), a structured grow journal. These reference bands are the same ones the app grades real grows against. Free to cite with a link. Some outbound product links are affiliate links — see disclosures.