Royal Thai by Spliff Seeds

Royal Thai strain photo
Type mostly sativaFlower ±77 daysCross Thailand Sativa × Skunk no1

Royal Thai lands on the sativa-leaning side of the spectrum, Spliff Seeds's take on the Thailand Sativa × Skunk no1 line. Indoors it typically finishes flowering in around 77 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Royal Thai grows against.

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BreederSpliff Seeds
Typemostly sativa
Flowering time±77 days
EnvironmentOutdoors
LineageThailand Sativa × Skunk no1

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🧬 Explore the family: Thailand Sativa

Ancestry Pedigree

Thailand Sativa
Original Strains
Skunk no1
Spliff 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

Growing Royal Thai: what to expect

As a sativa-leaning plant, plan for a big stretch after the flip (often 100–200%) — flip earlier than feels natural and keep training options ready. Sativa-leaning plants also generally prefer a lighter feed than heavy indicas. Growers familiar with Thailand Sativa or Skunk no1 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.

Royal Thai FAQ

How long does Royal Thai take to flower?

Royal Thai typically flowers in around 77 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Royal Thai an indica or a sativa?

Royal Thai is listed as mostly sativa.

What are the parents of Royal Thai?

Royal Thai was bred from Thailand Sativa × Skunk no1 by Spliff Seeds.

What environment does Royal Thai 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 Royal Thai? 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.