Description
Born from Critical Mass (automatic) crossed with Speed Devil #2 Auto, Speed+ from Sweet Seeds carries the dense, resinous structure of its Critical Mass heritage alongside the accelerated pace of a proven speed auto. The aroma is unmistakably skunky with a warm spicy edge that builds through the final weeks of flower. Effects land firmly in high-THC territory, testing between 16 and 24%, with a well-rounded indica-leaning quality that comes through clearly at harvest.
For cultivation, Speed+ is a standout choice when the grow calendar is tight. This feminised autoflower finishes in under eight weeks from germination, making it one of the faster-cycling options in the Sweet Seeds catalog. Indoors, yields reach 450-600 g/m2 with good light and a straightforward feeding program, meaning a standard tent can return a genuinely impressive haul in a short window. Plants stay short, fitting comfortably under low ceilings and into discreet setups without training. Outdoor plants yield up to 200 g each given a warm, sheltered position. For growers who value speed without trading away potency or aroma, Speed+ is a strain worth building a run around.
Speed + Auto Feminised Seeds
Description:
A fast-finishing autoflower from Sweet Seeds that delivers high-THC harvests in under eight weeks, with a bold skunky and spicy character that punches well above its compact frame.
Best For
Beginner growers seeking a balanced, euphoric high
- Type
- Feminised – Autoflowering
- Genetics
- Critical Mass (automatic) x Speed Devil #2 Auto®
- THC / CBD
- High THC (16-24%) / Low CBD (0-1%)
- Effects
- Relaxing,Uplifting
- Flavour / Aroma
- Skunky,Spicy
- Height
- Short
- Yield
- Modest Yield (up to 200gr/plant) / High Yield (450-600gr/m2)
- Auto Harvest
- less than 8 weeks
- Difficulty
- Easy
FAQ
All you need to know
about this product
Speed+ Auto delivers high-THC harvests in under eight weeks, making it everything a beginner grower needs to build confidence without sacrificing quality.
It is genuinely one of the more forgiving autoflowers available, classified as easy to grow and bred from robust genetics that handle minor cultivation mistakes without drama. The feminised autoflowering format removes the need to manage light schedules or sex plants, so first-time growers can focus on the basics and still expect a rewarding harvest.
Speed+ Auto finishes in under eight weeks from germination, which puts it among the fastest-finishing strains in Sweet Seeds' catalogue. That compressed timeline makes it ideal when you need to fit multiple runs into a season or simply do not want to wait months for results.
Indoors, expect up to 450–600 grams per square metre under optimised conditions, which is a strong return for such a compact and fast plant. Per-plant output reaches up to around 200 grams, so the 3+1 pack gives you four plants to work with and a solid cumulative harvest from a single run.
The dominant character is boldly skunky with a warm, spicy edge that becomes more pronounced during the final weeks of flowering. It is not a subtle profile — the Critical Mass lineage pushes through clearly, giving the finished product a punchy, old-school aroma that fans of classic strains tend to appreciate immediately.
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