Rainbow Sherbet #11
Cannabis seeds
by Advanced Seeds
Rainbow Sherbet #11 Cannabis Seeds by Advanced Seeds
Rainbow Sherbet #11 is an indica-dominant feminised cannabis seed from Advanced Seeds that packs 29% THC and the kind of terpene profile that fills a room before you even open the jar. Born from a cross of Pink Guava and OZK, this strain carries serious American genetics — think old-school Kush depth layered with citrus fruit and spice. Whether you grow indoors in a compact space or let her stretch outdoors, she delivers reliably heavy harvests with minimal fuss.
Pack Size
Rainbow Sherbet #11 is available in a pack of 3 feminised seeds. Every seed is photoperiod — you control the flip to flowering by switching your light schedule to 12/12.
Rainbow Sherbet #11 Specifications
Here are the hard numbers you need before deciding if this strain fits your setup.
| Spec | Value |
|---|---|
| Seed Bank | Advanced Seeds |
| Genetics | Pink Guava x OZK |
| Type | Feminised, Photoperiod |
| Dominant Profile | Indica-dominant hybrid |
| THC Content | 29% |
| Indoor Height | Up to 100 cm |
| Outdoor Height | 260-290 cm |
| Indoor Flowering Time | 60-65 days |
| Outdoor Harvest | Second half of October |
| Indoor Yield | 500-550 g/m2 |
| Pest Resistance | High |
| Seeds per Pack | 3 |
Why Rainbow Sherbet #11 Deserves a Spot in Your Grow
Finding a strain that ticks every box — manageable height, solid pest resistance, heavy yields, and a terpene profile that actually excites you — is harder than it sounds. Most indica-dominant seeds either grow into unremarkable bushes with average potency or demand expert-level attention to reach their potential. Rainbow Sherbet #11 sits in that sweet spot where you get genuine 29% THC muscle without the plant fighting you every step of the way.
The genetics here are worth talking about. Pink Guava brings tropical sweetness and vigour, while OZK (a descendant of the legendary OG Kush lineage) contributes that earthy, spicy backbone and resin production. The result is a plant that smells like a proper American dispensary strain from the moment it enters flower. We're talking citrus fruit up front, then earth, spice, and that unmistakable Kush funk underneath. If you've ever opened a bag of something from a Californian grower and thought "that's what cannabis should smell like," this is the seed to chase that memory.
Indoors, the plant stays compact — under 100 cm — which makes it a strong pick if you're running a tent in the 80x80 to 120x120 range. You won't be fighting canopy height or bending branches into submission. Outdoors is a different story: she can stretch to 260-290 cm, so she wants space, sunlight, and ideally some structural support once the buds stack on. The honest limitation? That intense terpene production means she's loud. If you're growing indoors without a carbon filter, your entire flat will know about it. Budget for proper extraction and filtration — it's not optional with this strain.
How to Grow Rainbow Sherbet #11 Seeds
Advanced Seeds designed Rainbow Sherbet #11 to perform in any environment, but a few practical steps will help you get the most out of those 3 seeds.
- Germinate your seeds using the paper towel method or by placing them directly into moist seedling plugs. Keep the temperature between 22-26 degrees Celsius and expect taproots within 24-72 hours.
- Transplant sprouted seeds into small pots (0.5-1 litre) with a light, airy growing medium. A mix of coco coir and perlite works well, as does a quality potting soil with added perlite for drainage.
- Maintain an 18/6 light schedule during the vegetative phase. Because Rainbow Sherbet #11 stays compact indoors (under 100 cm), you can run a shorter veg period of 3-4 weeks if space is tight, or push to 5-6 weeks for larger plants and heavier yields.
- Switch to a 12/12 light cycle to trigger flowering. The plant will finish in 60-65 days from the flip. Watch for dense, resinous buds forming along every branch — the trichome coverage on this strain is heavy.
- For outdoor growers: plant out after the last frost, give her full sun and nutrient-rich soil, and expect to harvest in the second half of October. Support the branches as buds develop — at 260-290 cm with dense flower clusters, she can get top-heavy.
- Monitor humidity during late flowering. Dense indica buds and high resin output mean Rainbow Sherbet #11 can be susceptible to mould if relative humidity climbs above 50% in the final weeks. Good airflow is critical.
- Harvest when trichomes shift from clear to milky-white with around 10-20% amber. Dry in a dark room at 18-20 degrees Celsius and 55-60% humidity for 7-10 days, then cure in glass jars for at least two weeks.
Terpene Profile and Aroma of Rainbow Sherbet #11
Rainbow Sherbet #11 inherited a seriously complex terpene profile that announces itself the moment plants enter the flowering stage. The dominant notes are citrus fruit — bright, sharp, almost like fresh grapefruit peel — layered over a base of damp earth and warm spice. Then there's that Kush signature: deep, resinous, slightly sweet, and immediately recognisable if you've spent any time around OG-lineage strains.
The flavour when dried and cured mirrors the aroma closely. The first impression is sweet and fruity, almost sherbet-like (the name isn't just marketing), followed by a spicy, earthy exhale that lingers. Compared to something like Wedding Cake or Gelato — two other American genetics heavyweights — Rainbow Sherbet #11 leans more savoury on the finish. Less dessert counter, more fruit market with a Kush stall next door. It's the kind of terpene expression that makes you want to open the jar just to smell it again.
Complete your setup with a proper grow tent and carbon filter — Rainbow Sherbet #11's terpene output is intense enough that odour control is a must for indoor growers. A quality pH meter and CalMag supplement will also help you push yields towards that 550 g/m2 ceiling. If you're after a complementary strain to run alongside, look at other indica-dominant seeds from Advanced Seeds for a consistent grow schedule.
Rainbow Sherbet #11 Compared to Similar Strains
Choosing between indica-dominant seeds with American genetics can feel like splitting hairs, so here's how Rainbow Sherbet #11 stacks up against two other popular options in the same category.
| Feature | Rainbow Sherbet #11 | Wedding Cake (typical) | Gelato (typical) |
|---|---|---|---|
| Genetics | Pink Guava x OZK | Triangle Mints x Animal Mints | Sunset Sherbet x Thin Mint GSC |
| THC | 29% | 24-27% | 20-25% |
| Indoor Height | Up to 100 cm | 80-120 cm | 80-100 cm |
| Flowering Time | 60-65 days | 56-63 days | 56-63 days |
| Indoor Yield | 500-550 g/m2 | 450-500 g/m2 | 400-500 g/m2 |
| Dominant Aroma | Citrus, earth, Kush, spice | Vanilla, sweet dough | Sweet, creamy, citrus |
| Pest Resistance | High | Moderate | Moderate |
Rainbow Sherbet #11 wins on raw THC potency and yield, and its pest resistance makes it the less fussy option if you don't want to babysit your plants. Wedding Cake edges it on speed, and Gelato has a smoother, creamier flavour if that's your preference. But for sheer weight of harvest and terpene complexity, Rainbow Sherbet #11 is the best indica-dominant seed for growers chasing American-style potency without the American-style difficulty.
Frequently Asked Questions
What is the THC content of Rainbow Sherbet #11?
Rainbow Sherbet #11 reaches up to 29% THC when grown under optimal conditions. That puts it at the higher end of what most home growers will encounter — expect strong, long-lasting effects from even small amounts of dried flower.
How tall does Rainbow Sherbet #11 grow indoors?
Indoors, Rainbow Sherbet #11 stays under 100 cm, making it manageable in most grow tents from 80x80 upwards. You won't need aggressive training techniques to keep it under control, though LST can help maximise light exposure across the canopy.
How long does Rainbow Sherbet #11 take to flower?
Flowering takes 60-65 days indoors from the switch to 12/12 lighting. Outdoor growers can expect to harvest in the second half of October. It's a fairly standard timeline for an indica-dominant hybrid — nothing unusually long.
What does Rainbow Sherbet #11 smell like?
The aroma is a layered mix of citrus fruit, damp earth, warm spice, and Kush. It's pungent — plants start smelling strongly as soon as they enter flower. A carbon filter is a must for indoor grows unless you want the entire building to know what you're up to.
Is Rainbow Sherbet #11 good for beginners?
Yes, it's a solid choice for less experienced growers. The plants show strong pest resistance, stay compact indoors, and don't demand advanced feeding schedules. Keep your environment dialled in — temperature, humidity, airflow — and she'll reward you with heavy yields without much drama.
What yield can I expect from Rainbow Sherbet #11 indoors?
Advanced Seeds lists indoor yields at 500-550 g/m2, which is above average for an indica-dominant strain. Achieving the upper end of that range requires proper lighting (400W HPS minimum or equivalent LED), adequate nutrition, and good environmental control during flowering.
Can I grow Rainbow Sherbet #11 outdoors in northern Europe?
You can, but timing matters. She needs to finish by late October, so you'll want a location with decent autumn sun and low humidity. In wetter climates, watch for bud rot in the final weeks — the dense flower structure holds moisture. A greenhouse or polytunnel is a smart compromise if your weather is unpredictable.
Last updated: April 2026
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Medical disclaimer. This content is for informational purposes only and does not constitute medical advice. Consult a qualified healthcare provider before use of any substance.