Best Strain for Rick Simpson Oil: 9 High-THC Picks That Deliver — Strain Guide
Best Strains for Rick Simpson Oil: 9 High-THC Picks That Deliver
Making Rick Simpson Oil is one of the most demanding applications for cannabis — you need massive quantities of flower, sky-high THC percentages, and a cannabinoid profile built for therapeutic depth. A casual 18% hybrid picked off the shelf isn't going to cut it. The best strain for Rick Simpson Oil is one that pushes 20–30%+ THC, carries a complex terpene payload that survives solvent extraction, and ideally produces heavy yields so your input costs don't spiral. RSO is typically made using indica-dominant or high-THC hybrid strains because the deep body load, sedative properties, and dense resin production align with what most people are trying to achieve — high-dose cannabinoid concentration in an oil format. Below are nine strains that consistently perform at the level RSO demands.
How We Chose These Best Strains for Rick Simpson Oil
Every strain on this list was evaluated against four criteria specific to RSO production:
- THC percentage: We prioritized strains testing at 20% THC minimum, with most landing between 22–30%. Higher THC means more active compound per gram of flower used in extraction.
- Resin density: Heavy trichome coverage means more extractable material. Strains bred for concentrate or hash production are naturally suited for RSO.
- Yield: RSO requires large quantities of plant material — typically 28–60g of dried flower to produce 3–5g of finished oil. High-yielding cultivars reduce the cost per gram significantly.
- Terpene stability: Myrcene, caryophyllene, and linalool survive ethanol extraction better than volatile terpenes. Strains dominant in these terpenes produce a more therapeutic final product.
Not sure which of these matches your specific situation? Use our Strain Finder Quiz to get a personalized recommendation based on your target effects and growing setup.
The 9 Best Strains for Rick Simpson Oil
1. OG Kush — The RSO Classic
Type: Indica-dominant hybrid | THC: 20–26% | Key Effects: Deep body relaxation, euphoria, sedation
OG Kush is the benchmark strain for RSO production, and for good reason. Its trichome density is legendary, and the dominant terpene profile — myrcene, limonene, caryophyllene — translates exceptionally well through ethanol extraction. The resulting oil is potent, dark, and carries that characteristic earthy-pine funk. Yields indoors average 400–500g/m², which keeps your input costs manageable. If you're making RSO for the first time, OG Kush is where you start.
2. GG4 (Gorilla Glue #4) — Maximum Resin Output
Type: Hybrid | THC: 25–30% | Key Effects: Heavy sedation, full-body lock, stress dissolution
GG4 was practically engineered for extraction. Named after the resin that coats the scissors during trimming, this strain produces some of the densest trichome coverage in the modern cannabis catalog. At 25–30% THC, you're squeezing out substantially more active compound per gram of flower. The myrcene-dominant profile means the sedative punch carries into the finished RSO. Its main downside for growers: it gets extremely sticky and requires more careful drying and handling. Check out our full GG4 strain guide for grow tips.
3. Bubba Kush — Sedation-Forward RSO
Type: Indica | THC: 18–25% | Key Effects: Powerful physical sedation, sleep induction, appetite stimulation
Bubba Kush is one of the most consistently indica-dominant strains available, which aligns directly with what most RSO users are targeting. The myrcene and caryophyllene load is among the highest of any commercially available cultivar, and both survive ethanol extraction with minimal degradation. If sleep, appetite, or deep muscle relaxation is the goal, Bubba Kush RSO is arguably the most targeted option on this list. Yields are modest (350–450g/m²) but density and resin make up for volume. Full profile at our Bubba Kush guide.
4. Girl Scout Cookies (GSC) — Potency Meets Terpene Complexity
Type: Indica-dominant hybrid | THC: 22–28% | Key Effects: Full-body relaxation, euphoria, pain relief
Girl Scout Cookies brings a complex terpene matrix — caryophyllene, limonene, linalool — that produces RSO with a notably well-rounded effect profile. Where some high-THC strains produce a blunt, one-dimensional oil, GSC RSO carries warmth and mood elevation alongside the physical heaviness. At 22–28% THC with strong resin production, it punches well above its weight for extraction. See our detailed GSC 2026 guide for growing specifics.
5. White Widow — Proven Resin Producer for RSO
Type: Hybrid | THC: 20–25% | Key Effects: Cerebral euphoria, physical relaxation, pain management
White Widow has been a staple of European coffee shops and home grows for decades because of one thing: the resin. The white crystal coverage that gives this strain its name translates directly to extraction efficiency. White Widow RSO tends to be slightly more balanced than pure indica strains, making it suitable for daytime use at lower doses. It's also one of the most forgiving strains to grow, yielding reliably even in suboptimal conditions — an important factor when you're growing at scale for RSO production. Our White Rhino guide covers a closely related cultivar if you want to explore that family.
6. Northern Lights — The Workhorse RSO Strain
Type: Indica | THC: 18–22% | Key Effects: Full-body sedation, deep relaxation, sleep aid
Northern Lights may not have the highest THC ceiling on this list, but it more than compensates through sheer yield and resin consistency. Indoor yields routinely hit 500–600g/m² under optimal lighting, which means you're producing more total RSO per grow cycle than many higher-THC strains. The effect profile — heavily sedative, classically indica — is exactly what most RSO users are after. Northern Lights is also incredibly stable genetically, so you get predictable potency run after run. If you're running a dedicated RSO grow and optimizing for volume, this is your strain. Use our Yield Calculator to model how much flower you'll need for your target RSO output.
7. Black Widow — 28% THC with Dense Resin
Type: Hybrid | THC: 22–28% | Key Effects: Intense euphoria, cerebral and physical effects, stress relief
Black Widow is the direct descendant of White Widow but with a more aggressive THC ceiling — tested batches have hit 28%. It carries a spicy, earthy terpene profile dominated by myrcene and caryophyllene, both of which extract cleanly into ethanol. The resulting RSO is potent and strongly psychoactive, which makes it less suitable for microdosing but excellent for those targeting maximum cannabinoid concentration. Read our full breakdown in the Black Widow strain profile.
8. Granddaddy Purple — High-Myrcene RSO with Grape Terpenes
Type: Indica | THC: 17–23% | Key Effects: Deep sedation, pain relief, appetite stimulation, sleep
Granddaddy Purple (GDP) is one of the highest-myrcene strains in the indica category, and myrcene is arguably the most therapeutically relevant terpene for RSO production. The grape and berry terpene complexity adds an interesting dimension to the finished oil's flavor, though most RSO ends up decarbed and consumed orally, so taste is secondary. GDP's physical heaviness makes the resulting RSO particularly well-suited for pain, insomnia, and muscle spasm applications. Yields are moderate at 400–500g/m², and the purple genetics are aesthetically rewarding if you're growing for your own supply. For more on purple cannabis genetics, see our purple cannabis strains guide.
9. ACDC — The CBD-Balanced RSO Alternative
Type: CBD-dominant hybrid | THC: ~1% | CBD: 15–20% | Key Effects: Non-intoxicating, anti-inflammatory, anxiety reduction
ACDC is the outlier on this list — intentionally. Most RSO targets high THC, but a growing number of users are producing high-CBD RSO for anti-inflammatory and non-psychoactive applications. ACDC produces CBD-rich oil that can be used at much higher doses without intoxication, making it practical for daytime use, pediatric applications, or users who are THC-sensitive. If you're blending CBD and THC RSO, ACDC provides the base layer. See our comprehensive ACDC strain guide for more on growing this cultivar.
RSO Strain Comparison Chart
What Makes a Strain Good for Rick Simpson Oil?
RSO is typically made by soaking cannabis flower in high-proof ethanol (190-proof grain alcohol is the standard), agitating briefly, straining out the plant material, then slowly evaporating the solvent using low heat. What remains is a thick, dark, full-spectrum cannabis extract. Because you're using the entire resin profile — not just isolated THC — the quality and composition of the starting material matters enormously.
THC Content Is Non-Negotiable
Rick Simpson himself specified high-THC indica strains as his preference. The math is straightforward: if you start with 28g of 25% THC flower, your maximum theoretical THC yield is 7g before any extraction losses. With 18% THC flower, you're starting at 5.04g. RSO extraction efficiency using ethanol typically runs 70–85%, so starting potency directly determines your final oil strength. Target 20% THC minimum; 25%+ is significantly better.
Terpene Profile Matters for the Entourage Effect
RSO is a full-spectrum extract, which means the terpene load in your flower ends up in the oil. Myrcene (found heavily in OG Kush, Granddaddy Purple, and Bubba Kush) contributes to the sedative "couch lock" quality of indica RSO. Caryophyllene adds anti-inflammatory properties and survives solvent extraction well. If therapeutic depth matters to you, read our complete guide to cannabis terpenes to understand which terpenes are doing the heavy lifting in your oil. You can also explore terpene profiles interactively using our Terpene Explorer.
Yield Optimization for RSO Production
To produce 3–5g of RSO, you typically need 28–60g (1–2oz) of high-quality dried flower, depending on THC% and extraction efficiency. If you're growing your own for RSO, maximizing yield per plant is essential. Use our Yield Calculator to work out exactly how much plant material you'll need based on your target RSO output and the THC% of your chosen strain. For growing techniques that maximize flower density and resin production, our guide on how to top cannabis plants is a good starting point for indoor grows.
Indica vs. Hybrid for RSO
Most RSO users are targeting sleep, pain relief, or appetite stimulation — applications that benefit from heavy indica effects. Pure sativas or sativa-dominant hybrids will produce a more cerebral oil that most RSO users find less suitable for their applications. The nine strains above lean heavily indica or high-THC hybrid for this reason. If pain is your primary target, also see our best cannabis strains for pain relief guide for additional context on which cannabinoid profiles work best.
RSO Dosing: Start Extremely Low
RSO is one of the most potent cannabis products available. A rice-grain-sized dose (~25mg) is the standard starting point for new users. Full-spectrum extracts hit harder than isolated THC because of the entourage effect — the combined action of THC, minor cannabinoids, and terpenes. Use our Dosage Calculator to estimate appropriate starting doses based on tolerance and body weight. Titrate slowly over weeks, not days.
Final Verdict on the Best Strain for Rick Simpson Oil
If you want one recommendation: start with GG4 for maximum resin density and THC ceiling, or OG Kush if you want the most battle-tested, widely available option with predictable results. For sleep and sedation-forward RSO, Bubba Kush and Granddaddy Purple are the strongest candidates. If you're specifically avoiding psychoactivity, ACDC opens the door to CBD-dominant RSO that can be used at much higher daily doses. Whatever strain you choose, the principles are the same: maximize THC%, prioritize resin, and grow more than you think you'll need.
More from StrainGuide
Have a question about this topic?
Ask our AI Bud Tender — powered by the same assistant in the StrainGuide app.