Treasure IslandStrain, Effects, Genetics, Grow Guide & Where to Buy
Among the strains American growers consistently come back to, Treasure Island sits near the top of the list, with a profile that holds up under scrutiny. It is a balanced hybrid (40% indica / 60% sativa) testing at roughly 25% THC, with a flowering window of 8-10 weeks under a 12/12 photoperiod. On this page we cover the effects, the lineage, the grow profile, and where to buy Treasure Island seeds in the United States with discreet shipping and a 95% germination guarantee.
Treasure Island Quick Stats
THC
25%
Indica
40%
Sativa
60%
Autoflower
No
Flowering
8-10 weeks
Difficulty
intermediate
Indoor Yield
450-550 g/m²
Outdoor Yield
500-700 g/plant
Plant Height
120-180 cm
Treasure IslandEffects & Experience
The dominant effects of Treasure Island are relaxed, happy, euphoric, and the experience is more nuanced than a simple high/low/sedating label would suggest. Onset is gradual rather than abrupt, the peak holds for roughly an hour, and the comedown is smooth, which is why this strain shows up in so many "daily driver" lists from experienced consumers.
Growing Treasure Island
Growing Treasure Island fits temperate and subtropical zones, Pacific coast, Southwest, and Mid-Atlantic states with mild September weather. Treasure Island is photoperiod, which means you control when it flowers by switching from 18/6 (vegetative) to 12/12 (flowering). Most indoor growers veg for 4-6 weeks before the flip. Indoor yields land around 450-550 g/m² under quality LED, and outdoor plants given full sun and 5-7 gallon containers reliably produce 500-700 g/plant. Expected plant height is 120-180 cm, with intermediate cultivation difficulty. Practical tips that move the needle: apply low-stress training in week 2 of veg, bend the main stem horizontally and tie down to expose lower nodes; and defoliate strategically on day 21 of flower; remove fan leaves blocking interior bud sites without stripping the plant. The most common challenge growers report is over-feeding nitrogen past week 1 of flower, switch to bloom nutrients within 7 days of seeing pistils.
Treasure IslandLineage & Genetics
Treasure Island is a Royal King Genetics in-house cross. The parental selection was chosen for hybrid vigor and a balanced effect profile, then stabilized over multiple generations to lock in phenotype expression. Seeds run true to the description on this page rather than spreading across a wide range of expressions.
Where to Buy Treasure Island Seeds in the USA
Treasure Island seeds ship from Royal King Seeds to all 50 US states with discreet packaging and a 95% germination guarantee. Average delivery is 3-5 business days, with the fastest routes typically reaching Alaska, Arizona, Arkansas, California, Colorado.
Treasure Island FAQ
Is Treasure Island indica or sativa?+
Treasure Island is a balanced hybrid with a 40% indica / 60% sativa split. The effects lean toward mental clarity, mood lift, and conversation.
How long does Treasure Island take to flower?+
Treasure Island flowers in 8-10 weeks once you flip to 12/12 light cycle. Outdoor harvest typically lands in late September to mid-October across most US zones.
What is the THC content of Treasure Island?+
Treasure Island tests at approximately 25% THC when grown to its potential. Real-world numbers depend on grow conditions, harvest timing, and curing, well-grown phenotypes can land at the high end of that range, while poorly cured flower tests lower.
Is Treasure Island good for beginner growers?+
Treasure Island is rated intermediate difficulty. Photoperiod genetics give you control over plant size and harvest timing, which means a bit more responsibility for getting the schedule right. Most growers with one harvest behind them handle this strain without difficulty.
Where can I buy Treasure Island seeds in the USA?+
Royal King Seeds ships Treasure Island seeds to all 50 US states with discreet packaging, 3-5 day delivery, and a 95% germination guarantee. The product page is at https://royalkingseeds.us/treasure-island-feminized, checkout accepts standard cards, Apple Pay, and crypto.