How to Grow RS11

RS11, short for Rainbow Sherbet #11, is an exceptionally potent, sativa-dominant feminized strain that crosses Sunset Sherbet with Pink Guava and OZK. It is a 60/40 sativa with a very high 27-31% THC, a sweet, sour, diesel flavor, and a happy, relaxed, uplifted effect. Frosty, flavorful and strong, it is a modern, sought-after cultivar.

As a feminized strain, RS11 produces only female, flower-bearing plants, so you can skip sexing and remove the guesswork of sorting out males. Every seed goes toward productive, bud-growing plants from the start. You grow it under long days through its vegetative stage, then switch the lights to 12/12 to trigger flowering, which gives you full control over the plant’s final size and its timing.

Recommended Strains

RS11

	THC	27% - 31% (High)
	Type	Feminized
	Yield	Medium
	Phenotype	40% Indica / 60% Sativa

1 Seed - $17.503 Seeds - $426 Seeds - $659 Seeds - $8025 Seeds - $19550 Seeds - $320100 Seeds - $580 Add to cart

RS11 Cannabis Extraction

	THC	20% - 24% (High)
	Type	Cannabis Extraction
	Yield	Medium
	Phenotype	55% Indica / 45% Sativa

5 Seeds - $5510 Seeds - $9050 Seeds - $325100 Seeds - $580 Add to cart

Potent, aromatic and beginner-friendly, RS11 is a rewarding strain to grow. You can see the full genetics and buy RS11 seeds on the strain page, and browse the rest of our feminized seeds alongside it.

Strain Profile at a Glance

Growing a Feminized Strain

RS11 is a photoperiod feminized strain, which means it flowers in response to the light cycle rather than its age. You keep it under long days, usually 18 hours of light, for as long as you want it to grow and build structure, then switch to 12 hours of light and 12 hours of darkness (12/12) to tell the plant to start flowering. Because every seed grows into a female, there are no males to find and remove, so your whole crop goes toward buds.

That control over timing suits a sativa-leaning plant like RS11, which stretches somewhat after the flip but stays manageable at around 1.5 m. Flip it once it has filled your space, and use the vegetative stage to top and train it. Spreading the canopy opens up the many flowering tops and keeps them level through its long 10 to 12 week bloom, which is where its heavy frost develops.

Climate and Where to Grow It

RS11 suits a temperate climate and grows well both indoors and outdoors where it gets good light and a steady season. Outdoors in the Northern Hemisphere it finishes late, around November, because of its extended flowering, so it needs a mild autumn to ripen fully. At a moderate 1.5 m it is easy to manage in a tent, and it holds up well in the ground or a large pot outside.

Its yield is moderate, around 350-450 g/m² indoors in an optimized setup and 450-550 g per plant outdoors, solid for such a potent, resinous plant. As a resinous, sativa-leaning plant, its very high 27-31% THC places it firmly among our high-THC seeds, one of the stronger cultivars in the catalog. It carries the energetic lift of an uplifting sativa alongside its heavy resin.

That flavor and potency come from its parents: Sunset Sherbet lends a sweet, creamy, fruity base, while Pink Guava and OZK add a sour, gassy diesel edge and dense, frosty structure. If you enjoy this Sherbet-family style, the related Gelato 33 shares that Sunset Sherbet heritage. Keep temperatures around 68-80°F (20-27°C) and humidity sensible through flowering so the dense buds ripen clean.

Feeding Schedule (EC Guide)

RS11 is a resinous, flavorful plant that feeds moderately well, but build the nutrients gradually rather than pushing it hard early. Start light while it is young, build through the vegetative stage, shift toward phosphorus and potassium once it flips into flower, then flush at the end so the sweet, sour, diesel notes come through clean. The ranges below are a starting guide; adjust to your water and medium.

Flowering and Harvest

Once you flip it to 12/12, RS11 takes a longer 10 to 12 weeks to finish, so it rewards patience. It builds dense, frosty, trichome-smothered buds, often with pastel, purple-tinged tones in a cool finish, developing a sweet, sour, gassy diesel aroma as it ripens. That heavy frost is the signature of the Sherbet family and a sign of its serious potency.

Yields are moderate at around 350-450 g/m² indoors and 450-550 g per plant outdoors. Keep the colas supported and the canopy open so light reaches the lower buds, feed it steadily through flower, and harvest when most of the trichomes have turned cloudy with a few amber for the fullest sweet, sour-diesel flavor and the most rounded, potent effect.

Drying and Curing

Dry whole plants or branches in a dark room at around 60°F (15-18°C) and 55-60% humidity for 7-14 days, until the thin stems snap rather than bend. A slow, even dry matters with such dense, resinous buds, because they can stay damp in the middle while the outside dries, and a gentle dry protects the sweet, sour, gassy diesel aroma and the pastel color that define the strain.

Then cure the trimmed buds in sealed jars, burping them daily for the first week and letting them settle for three to four weeks. A proper cure is what brings out the sweet, sour and diesel notes and smooths the smoke, turning a freshly dried harvest into the rich, frosty, flavorful result RS11 is known for.

What to Do With Your Trim

Don’t bin the sugar leaves you remove while manicuring. RS11 is a very resinous, frosty plant, so its trim is excellent for dry sift, bubble hash or rosin. That heavy resin and sweet, sour, gassy aroma make the trim genuinely valuable, turning offcuts into a potent, flavorful concentrate run rather than waste, a real bonus with such a high-THC cultivar.

Flavor and Terpenes

RS11 leads with a sweet, sour flavor wrapped in a gassy diesel edge, a rich, modern profile from its Sherbet and OZK roots. It is a bold, full-bodied smoke, and a good cure brings that sweet-and-sour, diesel character forward in the jar and on the inhale, with the creamy sweetness balancing the gas.

Its terpene profile is simple but shapes that flavor. Myrcene forms a sweet, earthy, slightly fruity base that carries the sweetness, while caryophyllene adds a peppery, spicy bite that drives the sour, gassy diesel edge. Together these two terpenes give RS11 its sweet, sour, diesel character, keeping it rich and bold rather than one-dimensional.

Effects and Best Use

With its very high 27-31% THC and 60/40 sativa-leaning make-up, RS11 delivers a potent, well-rounded experience. It is reported as happy, relaxed and uplifted, pairing a bright, cheerful head with a comfortable, settled body. Its potency is genuinely high, among the stronger cultivars in the catalog, so a measured dose goes a long way, especially for newer smokers.

That happy, uplifted, relaxed profile makes it a versatile strain for day or evening use, alongside its sweet, sour-diesel flavor. The combination of exceptional potency, heavy frost and a bold, modern taste is exactly why RS11 has become such a sought-after cultivar among feminized strains.

Common Problems and Pro Tips

RS11 is forgiving and beginner-friendly, but its dense, resin-packed buds and long flowering are the two things to plan for. Those tight colas can trap moisture, so keep the air moving and ease the humidity down as the flowers fill out to avoid trouble in the heart of the bud. Give it the full 10 to 12 weeks rather than harvesting early.

At a manageable 1.5 m it is easy to handle, and gentle, low-stress training during veg opens the canopy so light reaches every bud site across its long bloom. Do your topping and training early, while the plant is still growing, and let the late-flower nights run a little cool to coax out its pastel, purple-tinged tones.

As a pro tip, make the most of its frost and bold flavor: keep the feed steady rather than heavy, give it the patience its long bloom needs, and protect the sweet, sour, diesel terpenes with a proper plain-water flush and a full three to four week cure. Save the frosty trim for concentrates, and harvest when most trichomes are cloudy with a few amber for a rich, potent result.

FAQ

Is RS11 a feminized strain?

Yes. RS11 is a photoperiod feminized strain, so every seed grows into a female, flower-bearing plant and you never have to sex or remove males. You grow it under long days through the vegetative stage, then switch the lights to 12/12 to trigger flowering, which gives you full control over the plant’s size and when it finishes.

How much THC does RS11 have?

RS11 is one of the more potent cultivars in the catalog, testing from about 27% up to 31% THC depending on the phenotype and how it is grown. Combined with its 60/40 sativa-leaning genetics, the result is a happy, relaxed, uplifted effect. Because the potency is so high, it is well worth dosing carefully, especially if you are newer to strong strains.

How long does RS11 take to flower?

RS11 is a longer finisher, taking about 10 to 12 weeks in flower once you switch it to a 12/12 light cycle, so it rewards patience. Outdoors in the Northern Hemisphere it comes down late, around November. That extended bloom is what lets it build its heavy frost, deep color and distinctive sweet, sour, diesel flavor.

What does RS11 taste like?

It has a sweet, sour flavor wrapped in a gassy diesel edge, a rich, modern profile. Myrcene carries the sweet, earthy base, while caryophyllene drives the sour, gassy diesel note. A proper three to four week cure brings that sweet-and-sour, diesel character forward on the inhale, with the creamy sweetness balancing the gas.

How much does RS11 yield?

RS11 is a moderate producer, giving around 350-450 g/m² indoors in an optimized setup and 450-550 g per plant outdoors. Give it good light penetration, an open canopy and support for the resinous colas to get the most from its dense, frosty, very potent buds across its 10 to 12 week flowering.

Is RS11 indica or sativa?

RS11 is sativa-dominant, at a 60/40 split, so it leans toward a brighter, more uplifting experience while keeping a comfortable body presence. That balance shows in its happy, relaxed, uplifted effect, which makes it versatile for day or evening use, though its very high THC means a measured dose goes a long way.