Speed is the whole game here. +Speed Auto is a third-generation Autoflowering hybrid created from Critical Mass Auto and Speed Devil #2 Auto. It can finish only 7 weeks after germination while producing compact, well-branched plants and thick, resin-covered buds.
Sweet Seeds developed this cultivar through its R&D department.
The genetics sit almost dead center between Sativa and Indica, with 48.5% Sativa, 48.4% Indica, and 3.1% Ruderalis. Plants reach around 50–90 cm (20–35 in), making the strain compact without looking weak or sparse.
Its bold effects, expressive aroma, and memorable flavor give the speed some personality. We really like this strain because the quick cycle does not leave you with a boring sensory profile.
It also has trophies behind it: first place for Most Popular Indoor Autoflower at Semyanich 2024 in Russia and first place for Best Autoflower at the 2022 Grow Diaries POTY at Spannabis in Barcelona.
Flavor And Effects Make This Fast Strain Hard To Forget
The first impression is sweet and fruity, but +Speed Auto refuses to stay polite. Yeasty and cheesy nuances slide underneath, while Skunk-like spice adds another rough little twist. The flavor feels like biting into ripe fruit in the back room of an old bakery: sweet up front, funky underneath, and strangely compelling.
That contrast gives every draw character. The fruity sweetness keeps things approachable. The cheese, yeast, musk, and spice make the finish more unusual. We think that is where this cultivar earns its personality. Plenty of strains taste sweet. This one leaves a crooked signature behind.
With 15–20% THC and around 0.7% CBD, the experience starts on the brighter side. Users can expect creative stimulation, mental activity, and an uplifting sense of well-being. It is lively without being described as overwhelming.
Then the gears change. The initial stimulation gradually gives way to soft, pleasant relaxation that loosens tension without crushing the mood. Think of the effect as a fast train leaving a bright city and slowly rolling into quiet countryside. Your mind gets the scenery first. Your body gets the comfortable seat afterward.
Want an autoflower that moves quickly but still has something interesting to say? +Speed Auto makes a convincing case.
+Speed Auto Characteristics
| Strain type | Autoflowering |
| Genetics | Critical Mass Auto × Speed Devil #2 Auto |
| Indica/Sativa | 48.4% Indica / 48.5% Sativa / 3.1% Ruderalis |
| THC | 15–20% |
| CBD | 0.7% |
| Effect | Relaxing, creative, uplifting, appetite stimulating |
| Flavor | Sweet, fruity, cheese, yeast, Skunk, spicy |
| Indoor yield | 350–500 g/m² (11.5–16.4 oz/10.8 ft²) |
| Outdoor yield | 30–150 g/plant (1.1–5.3 oz/plant) |
| Flowering time | 7 weeks from germination |
| Height | 50–90 cm (20–35 in) |
| Structure | Compact, well branched, fast developing |
| Bud appearance | Thick, resinous buds |
FAQ
Is +Speed Auto Indica or Sativa?
It is almost perfectly balanced, with 48.5% Sativa, 48.4% Indica, and 3.1% Ruderalis genetics.
What terpenes does this strain have?
The supplied breeder information does not identify individual terpenes. Its aromatic profile is described as sweet, fruity, cheesy, musky, and spicy, with yeast and Skunk nuances.
Is this strain good for beginner growers?
Its compact structure and 7-week seed-to-harvest cycle can appeal to growers seeking a fast cultivar, although the breeder information does not provide a specific difficulty rating.
How to grow +Speed Auto seeds?
Provide suitable light and substrate while respecting local laws. The breeder reports 350–500 g/m² (11.5–16.4 oz/10.8 ft²) indoors and 30–150 g/plant (1.1–5.3 oz/plant) outdoors under suitable conditions.
How fast does +Speed Auto finish?
Its standout advantage is speed. The breeder states that plants can be ready only 7 weeks after germination.


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