Black Rainbow Auto comes from Watermelon Zkittlez, Bacio Rainbow, and Apollo Black Cherry Auto. This combination creates a compact Indica-dominant autoflower with strong branching, dense flowers, and abundant resin production.
Seedstockers developed this strain.
We really like this strain because it combines an intense fruity profile with deep physical relaxation and an active cerebral sensation. The flowers become dense, frosty, and highly aromatic as they mature.
This Autoflowering variety is fast, manageable, and productive. Black Rainbow Auto seeds are a strong choice for growers looking for compact plants, resin-rich buds, and powerful effects without a complicated cultivation process.
Effects
The effects begin in the mind. A noticeable cerebral pressure develops quickly, making colors appear brighter, sounds feel deeper, and time seem slightly slower.
As the experience continues, a warm wave of relaxation spreads through the muscles. The body becomes calm and heavy without immediately feeling completely immobilized.
We think this strain works especially well during late afternoons and evenings. Its combination of cerebral stimulation and physical calm fits music, quiet activities, and relaxed nighttime sessions.
Flavor
The flavor opens with sweet citrus and ripe fruit. Berry and grape notes appear shortly afterward, followed by fuel, spice, and a deep earthy Kush background.
The smoke feels smooth on the inhale, while the fruity and Diesel-like flavors remain noticeable on the palate for a long time.
Black Rainbow Auto combines citrus, berries, grape, Diesel, spice, and earthy notes into a complex terpene profile that continues changing throughout the session.
Black Rainbow Auto Characteristics
| Strain type | Autoflowering feminized |
| Genetics | Watermelon Zkittlez x Bacio Rainbow x Apollo Black Cherry Auto |
| Indica/Sativa | Indica dominant |
| THC | 23–26% |
| CBD | Low |
| Effect | Relaxing, cerebral, mildly psychedelic |
| Flavor | Fruity, citrus, berry, Diesel, spicy, earthy |
| Terpenes | Myrcene, Limonene, Caryophyllene, Pinene |
| Indoor yield | 400–450 g/m² (1.3–1.47 oz/ft²) |
| Outdoor yield | 100–170 g/plant (3.5–6 oz/plant) |
| Flowering time | Approximately 11 weeks from seed |
| Height | 60–100 cm (23–39 in) |
| Structure | Compact, bushy, strong branching |
| Bud appearance | Dense, resinous, frosty flowers with orange pistils |
| Difficulty level | Easy to intermediate |
| Best cultivation technique | Low-stress training and minimal transplanting |
FAQ
Is Black Rainbow Auto seeds Indica or Sativa?
It is an Indica-dominant autoflower. Its effects are strongly relaxing and physical, although it also produces an active cerebral sensation.
What terpenes does this strain have?
Its main terpenes include myrcene, limonene, caryophyllene, and pinene, contributing fruity, citrus, spicy, and earthy notes.
Is this strain good for beginner growers?
Yes. It is relatively easy to manage and forgiving, provided that growers avoid excessive stress, overfeeding, and unnecessary transplanting.
How to grow Black Rainbow Auto seeds?
Plant it directly in its final container, provide enough root space, maintain stable temperatures, and use only gentle low-stress training when necessary.
How fast does Black Rainbow Auto finish?
It normally completes its full life cycle in approximately 11 weeks from seed under suitable growing conditions.
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