What is Rainbow?
Rainbow is an Indica-dominant hybrid combining Blueberry with Dancehall, producing the colorful purple-magenta-green expression that gives the strain its name. With THC at 15-19% — moderate by modern standards — Rainbow prioritizes flavor complexity, visual appeal, and a balanced effect profile over raw potency. Royal King Seeds offers feminized Rainbow seeds with stabilized expression of the multi-color flower phenotype.
Effects & Medical Use
Rainbow delivers a balanced, mellow high that starts with mild cerebral euphoria and settles into a relaxed, slightly creative body experience. The moderate THC level keeps it accessible — a good choice for low-tolerance users, social settings, and creative work without the racy edge of higher-THC Sativas. Medical reports include mild depression, stress, and minor pain. Myrcene-leaning terpene profile contributes to the gentle relaxation.
Growing Rainbow
Rainbow is beginner-friendly: short structure (1.3-1.6x stretch), 9-week flowering, and good resilience to common pests. Cold night temps (15-17°C) in late flower amplify the purple-magenta coloration that gives the strain its name. Indoor yields are moderate (350-450 g/m²) but visual appeal is exceptional. Outdoor harvest is late September to early October in temperate climates.
Frequently Asked Questions
Why is the Rainbow strain colorful?
Rainbow expresses purple, magenta, and green coloration in flower due to anthocyanin pigments triggered by cool night temperatures (15-17°C) in late flower.
Is Rainbow good for beginners?
Yes — Rainbow is short, fast-flowering, and forgiving of minor grow mistakes, making it one of the best Indica-leaning choices for first-time growers.