Mexican Rush is to sativa what single malt is to whisky, and Mexican Rush Auto puts that heritage into an easy, fast package. The original descends from a landrace from Mexico’s Pacific Coast, a strain that has been part of the cannabis scene since the 1960s.
Grown outside Acapulco in the Sierra Madre del Sur range, its aromatic, potent buds drew attention far beyond Mexico during the counterculture era. Royal Queen Seeds first stabilized the feminized Mexican Rush, then crossed it with Royal Haze Auto to preserve those genetics in autoflowering form.
The result is an 80% sativa, 15% indica, 5% ruderalis hybrid with THC up to 20%. Plants reach 3 to 4 feet (91–122 cm) indoors and 4 to 5 feet (122–152 cm) outdoors, yielding 16 to 19 oz/m² (455–540 g/m²) indoors and 6 to 8 oz/plant (170–225 g/plant) outside.
From germination to harvest takes about 90–95 days (13–14 weeks), all without changing the light schedule.
Flavor and Effects: Vintage Sativa, Modern Convenience
Mexican Rush Auto produces long, wispy sativa flowers with a generous coating of trichomes that turn golden after drying and curing. Her aroma is rich and layered, a clear contrast to the candy-sweet profiles of many modern strains.
Myrcene, caryophyllene and limonene shape a flavor that is citrusy, piney, fruity, earthy and spicy all at once, with a pungent edge.
The effect is a classic sativa head high: euphoric, uplifting and creative, softened by calming physical effects. She is a great companion for daytime, parties or creative projects.
Growing Mexican Rush Auto Seeds
Mexican Rush Auto is a vigorous plant that keeps the sativa character in a compact, manageable size, which makes her a strong indoor sativa. Run her under 18/6 or 20/4 from seed and plant directly into the final container.
Flowering lasts 55–65 days. LST early in the cycle spreads her long branches and evens out the canopy. Because she takes around 13–14 weeks, outdoor growers should plan sowing dates carefully; a spring start fits comfortably within the warm months, and in warm southern regions a second run in the same season is possible.
Mexican Rush Auto Characteristics
| Strain type | Autoflowering (feminized) |
| Genetics | Mexican Rush x Royal Haze Auto |
| Indica/Sativa | 80% Sativa / 15% Indica / 5% Ruderalis |
| THC | Up to 20% |
| CBD | Low |
| Effect | Calming, creative, euphoric, uplifting |
| Flavor | Citrus, pine, pungent |
| Indoor yield | 16 to 19 oz/m² (455–540 g/m²) |
| Outdoor yield | 6 to 8 oz/plant (170–225 g/plant) |
| Seed to harvest | 90–95 days (13–14 weeks); flowering 55–65 days |
| Height | Indoor 3 to 4 feet (91–122 cm); outdoor 4 to 5 feet (122–152 cm) |
| Climate | Suited to regions with short summers |
| Best cultivation technique | LST plant training, 18/6 or 20/4 light |
FAQ
What is Mexican Rush Auto bred from?
Royal Queen Seeds crossed its feminized Mexican Rush, a Mexican landrace sativa, with Royal Haze Auto.
How long does Mexican Rush Auto take from seed to harvest?
About 90–95 days after germination, or 13–14 weeks, with a flowering phase of 55–65 days.
How strong is Mexican Rush Auto?
THC reaches up to 20%, producing a classic sativa head high with soothing body effects.
What light schedule does Mexican Rush Auto need?
As an autoflower, she needs no switch to 12/12. Keep her under 18/6 or 20/4 throughout the grow.
What does Mexican Rush Auto taste like?
Expect citrus, pine and fruit with earthy, spicy and pungent notes, driven by myrcene, caryophyllene and limonene.
How much does Mexican Rush Auto yield?
Indoors, expect 16 to 19 oz/m² (455–540 g/m²). Outdoor plants produce 6 to 8 oz/plant (170–225 g/plant).
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