Forbidden Runtz Auto
XXL autoflower, up to 26% THC, done in 9 weeks
$15.00 – $2399.0010 pack sizes — choose at Fast Buds
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Rated 4.8/5 by 181 verified Fast Buds customers
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Our take
Forbidden Runtz Auto is a mostly indica autoflower carrying up to 26% THC and a sweet, fruity aroma with earthy depth — a combination that usually takes careful strain selection to find. It completes seed to harvest in just 9 weeks without any light-schedule adjustments, making it a solid choice for both first-time growers and experienced cultivators who want reliable, fast results indoors or out.
Grow specs
Specs are Fast Buds's published figures for this product; catalog and pricing last verified August 2026. Our write-up is our own — see how we make money.
Growing notes
Forbidden Runtz Auto fits indoor tents, outdoor gardens, greenhouses, and mixed-light setups equally well. Plants stretch to 35–51 inches, so allow adequate vertical space indoors. The 9-week total cycle keeps things moving. Because it's a feminized autoflower, there's no need to track light schedules or flip timers — a straightforward trait that newer growers will appreciate.
New to growing? Start with the complete guide, plan your gear with tent setups, and diagnose problems with troubleshoot.
Want variety instead?
Mix packs bundle three proven strains (30 seeds) at up to 50% off buying separately — the best value in the catalog.
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