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 8-9 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.
Treasure Island Quick Stats
THC
25%
Indica
40%
Sativa
60%
Autoflower
No
Flowering
8-9 weeks
Difficulty
intermediate
Indoor Yield
12-16 oz/m2
Outdoor Yield
16-25 oz/plan
Plant Height
Medium (5 to 8 FT)
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 most US climates, the 8-9 week flower fits inside nearly every outdoor window from Florida to Maine. 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 12-16 oz/m2 under quality LED, and outdoor plants given full sun and 5-7 gallon containers reliably produce 16-25 oz/plan. Expected plant height is Medium (5 to 8 FT), 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 offered in the Royal King Seeds catalog. Read the description on this page as a general profile rather than a guarantee of your specific pack; expect some phenotype variation between packs.
Where to Buy Treasure Island Seeds in the USA
Treasure Island seeds ship from Royal King Seeds from within the United States. Estimated delivery is approximately 5-7 business days; actual timing varies by destination and carrier.
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 8-9 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 from within the United States, with estimated delivery in approximately 5-7 business days. The product page is at https://royalkingseeds.us/treasure-island-feminized.