Royal Critical Auto takes one of the most productive indica-leaning hybrids around and puts it on fast-forward. Royal Queen Seeds crossed Critical, a heavy-yielding Afghan and Skunk hybrid, with ruderalis genetics to create an autoflower that grows fast, stays manageable and still fills the jar.
The cross has collected multiple awards at Spanish cannabis competitions and has become one of the most popular autoflowers in the RQS catalog. Its genetic makeup is 50% indica, 15% sativa and 35% ruderalis, a recipe that delivers dense, sweet buds on a fast timeline.
Indoors, plants sit at about 2 feet (61 cm), while outdoor specimens can stretch to 3 to 5 feet (91–152 cm) when given room and sun. Production is impressive for an autoflower: 12 to 14 oz/m² (340–397 g/m²) indoors and 4 to 5 oz/plant (113–142 g/plant) per plant outdoors. The full cycle lasts 70 to 80 days (10 to 11 weeks), including 45 to 50 days (6 to 7 weeks) of flowering.
Unlike many autos that prefer long, warm seasons, Royal Critical Auto is listed by RQS for short summers, which makes it a useful option for growers in northern states with a narrow outdoor window.
Aroma, Flavor, and Effects of Royal Critical Auto
Crack open a jar and you get sweet candy and ripe fruit right away, with a peppery spice underneath that sharpens on the exhale. The flavor is bright and sugary but never cloying, thanks to that spicy backbone.
THC is rated up to 14%, which might look modest on paper, yet the terpene profile shapes the experience just as much as the cannabinoids. The result is a euphoric, chatty high that has a way of turning small moments into laughing fits. It feels like a sunny afternoon picnic with friends where every joke lands.
Because it lifts the mood without heavy sedation, Royal Critical Auto suits social gatherings, outdoor afternoons and relaxed get-togethers at almost any time of day.
Growing Royal Critical Auto Seeds
Sow seeds directly into 11-liter (about 3-gallon) pots and keep lights on 18/6 or 20/4 throughout the grow. No light-schedule switch is required; the plant flips into bloom on its own after a few weeks of vegetative growth. Begin low-stress training around week three to keep the plant compact and spread the canopy.
Defoliate where needed to improve airflow and expose developing buds to direct light, then flush during the final two weeks for a cleaner flavor. Outdoors, the short cycle and tolerance for shorter summers let you plan more than one harvest per season, even in cooler regions.
Royal Critical Auto Characteristics
| Strain type | Autoflowering (feminized) |
| Genetics | Critical x Ruderalis |
| Indica/Sativa | 50% Indica / 15% Sativa / 35% Ruderalis |
| THC | Up to 14% |
| CBD | Low |
| Effect | Euphoric, laughter, sociable |
| Flavor | Candy, fruity, pepper |
| Indoor yield | 12 to 14 oz/m² (340–397 g/m²) |
| Outdoor yield | 4 to 5 oz/plant (113–142 g/plant) |
| Flowering time | 45 to 50 days (6 to 7 weeks) |
| Seed to harvest | 70 to 80 days (10 to 11 weeks) |
| Height | Indoors about 2 feet (61 cm); outdoors 3 to 5 feet (91–152 cm) |
| Climate | Short summers |
| Best cultivation technique | LST from week three, defoliation for airflow, direct sowing |
FAQ
What is Royal Critical Auto bred from?
It is the autoflowering version of Critical, an Afghan and Skunk hybrid, crossed with ruderalis for automatic flowering and compact growth.
How long does Royal Critical Auto take to harvest?
Royal Queen Seeds lists 70 to 80 days (10 to 11 weeks) after germination, with 45 to 50 days (6 to 7 weeks) of flowering.
What yields can I expect from Royal Critical Auto?
Indoors, expect 12 to 14 oz/m² (340–397 g/m²). Outdoors, each plant produces 4 to 5 oz/plant (113–142 g/plant).
Can Royal Critical Auto be grown in cooler climates?
Yes. RQS lists it for short summers, and its fast cycle makes it a practical choice where the outdoor season is limited.
What effect does Royal Critical Auto have?
With THC up to 14%, it delivers a euphoric, giggly high that keeps the mood light without heavy sedation.
Which light schedule should I use for Royal Critical Auto?
Keep lights on 18/6 or 20/4 from seedling to harvest. As an autoflower, it does not need a 12/12 switch to flower.







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