Rainbow Melon is a flavor-first photoperiod from Fast Buds that brings together two very expressive parents. The first is Melon, a mother plant from Fast Buds’ own collection of keeper cuts. The second is Rainbow Chip, a selection from Exotic Genetix known for a loud, unmistakable terpene signature. The cross gives a feminized hybrid with candy-sweet fruit aromatics and some of the densest flowers in the Fast Buds photoperiod range.
Speed is part of the appeal. After the flip to 12/12, Rainbow Melon needs only 8-9 weeks (about 56-63 days) to finish, which is quick for a modern full-term hybrid. In that time she develops into a medium-sized, XL-class plant of 140-180 cm (55-70 inches), with buds that Fast Buds describes as grape-shaped, super dense and very resinous.
Harvest figures are healthy: 500-600 g/m² (1.6-2.0 oz/ft²) indoors and up to 1,100 g (39 oz) per plant outdoors. THC reaches 25-30% with CBD under 1%.
She does have preferences. Fast Buds notes that Rainbow Melon performs much better in moderate climates outdoors and responds better to gentle training than to high-stress methods indoors, details worth keeping in mind before you plan your run.
A Loud Rainbow of Melon and Candy
Open the tent in late flower and the Rainbow Chip side announces itself with a loud, distinctive terpene blast, lifted by citrus-tinged notes of sweet, juicy melon. The aroma is bright, fruity and playful rather than earthy or gassy.
The smoke follows the same path. A sugary melon flavor fills the palate, backed by mixed fruit tones, and leaves an aftertaste that Fast Buds compares to the powdered fruit candy and orange drink mixes many of us grew up with. It is sweet, nostalgic and very easy to come back to.
With 25-30% THC, this is a powerful hybrid that calls for respect. The candy-like flavor can be deceptive, so pace your sessions and let the strength reveal itself before reaching for more.
How to Grow Rainbow Melon
Indoors, Fast Buds recommends low-stress training (LST) and suggests avoiding high-stress techniques to get the most out of her. Bend and tie down the main stem early to open the canopy and expose lateral branches, then keep the light even across the tops. Her medium stature fits most tents comfortably, even with the early-bloom stretch, and her compact, dense buds fill out fast within the short 8-9 week flowering window.
Outdoors, pay close attention to temperature and humidity. Rainbow Melon is happiest in moderate climates, where she can reach up to 1,100 g (39 oz) per plant. In regions with extreme heat or damp autumns, a greenhouse or indoor run is the safer bet.
Because her flowers are so tight, strong airflow and a well-controlled humidity level during late bloom are essential. A defoliation pass around the start of flowering can help air move through the canopy without stressing the plant.
Rainbow Melon Characteristics
| Strain type | Feminized photoperiod |
| Genetics | Melon (Fast Buds keeper cut) x Rainbow Chip (Exotic Genetix) |
| Indica/Sativa | Hybrid |
| THC | 25-30% |
| CBD | <1% |
| Effect | Powerful hybrid character |
| Flavor | Melon, fruits, sweet |
| Indoor yield | 500-600 g/m² (1.6-2.0 oz/ft²) |
| Outdoor yield | Up to 1,100 g/plant (39 oz/plant) |
| Flowering time | 8-9 weeks (about 56-63 days) |
| Height | 140-180 cm (55-70 inches), XL size class |
| Climate | Moderate climates outdoors; indoors |
| Best cultivation technique | LST; avoid high-stress training |
FAQ
What are Rainbow Melon’s parents?
Rainbow Melon crosses Fast Buds’ Melon keeper cut with Rainbow Chip, a selection from Exotic Genetix.
How long does Rainbow Melon flower?
She finishes in 8-9 weeks (about 56-63 days) of flowering after the switch to a 12/12 light schedule.
What does Rainbow Melon taste like?
Expect a sugary melon flavor with mixed fruit notes and a sweet, candy-like aftertaste reminiscent of powdered fruit candy and orange drink mix.
What training works for Rainbow Melon?
Fast Buds recommends low-stress training such as LST and suggests avoiding high-stress techniques to get the most out of her.
Can I grow Rainbow Melon outdoors?
Yes, but she performs much better in moderate climates. Watch temperature and humidity closely. Under good conditions, a plant can yield up to 1,100 g (39 oz).
How much does Rainbow Melon yield indoors?
Fast Buds lists 500-600 g/m² (1.6-2.0 oz/ft²) indoors.
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