White Rhino
Also known as: Medicine Man
Breeder: Green House Seeds
White Rhino is a heavy indica-dominant hybrid from the 'White Family' developed by Green House Seeds in the mid-1990s. Named for the rhinoceros horn-shaped main cola it throws under good light, White Rhino was bred to amplify White Widow's legendary resin production while deepening the body stone with Afghan indica genetics. The result is a stocky, frost-covered plant that delivers narcotic, full-body sedation and exceptional yields. Originally released as White Rhino, the strain was renamed 'Medicine Man' by co-breeder Shantibaba when he departed Green House Seeds to found Mr. Nice Seedbank. White Rhino is a legendary indica-dominant hybrid (80% indica / 20% sativa) created by Green House Seeds in Amsterdam during the mid-1990s. The genetics combine White Widow — itself a world-famous Dutch hybrid — with a North American Indica descended from Afghan landrace genetics. Some sources cite additional Brazilian and South Indian landrace influences in the lineage. The strain produces extremely dense, resinous buds with a complex aroma of earth, pine, wood, and sweet fruit. THC levels typically range from 18-22%, delivering a heavy body stone prized for medicinal applications including pain management, insomnia, and stress relief. The name derives from both the crushing strength of its effects and the distinctive horn-shaped top cola that develops on well-grown plants.
Lineage & Genetics
Cross: White Widow x Afghan
White Widow (Brazilian Sativa x South Indian Indica) — one of the most iconic hybrids ever created, known for extreme trichome coverage, balanced euphoria, and the crystalline 'white' appearance that named the family. Afghan Indica — a traditional landrace selected for dense structure, heavy resin output, narcotic body effects, and short flowering time.
Lineage Dispute
Green House Seeds and SeedFinder.eu list the cross as White Widow x Afghan. Several secondary sources describe the second parent as 'North American Indica' rather than a pure Afghan landrace. Shantibaba, the original breeder who later moved to Mr. Nice Seedbank, sells the same genetics as 'Medicine Man' and describes the full decomposition as 'Afghan x Brazilian Sativa / South Indian' — which simply expands the White Widow parentage.
Terpene Profile
Myrcene —
Caryophyllene —
Pinene —
Terpinolene —
Aroma: Opens with a heavy earthy and musky base — classic old-school indica. Strong hashish and damp soil notes dominate, backed by woody and piney undertones reminiscent of a coniferous forest floor. Breaking apart the buds releases sharp spicy and peppery notes with a skunky pungency that fills a room.
Flavor: Earthy and woody on the inhale with a noticeable sweetness that catches you off guard given the pungent aroma. Mid-palate shifts to spicy, peppery notes with hash-like richness. The exhale finishes with diesel and creamy, almost oak-like undertones.
Effects & Experience
Onset: Fast-acting. Effects register in the face and behind the eyes within minutes of the first hit, then spread downward into the body over 10–15 minutes.
Begins with a warm euphoric mental uplift inherited from the White Widow side — a brief window of cerebral clarity before the Afghan indica genetics take over. The body high builds steadily into deep, heavy relaxation that pins most users to the couch. At higher doses the effect becomes nearly narcotic, with limbs feeling leaden and eyelids heavy.
Duration: Long-lasting. The primary sedative plateau holds for 2–3 hours, tapering into deep drowsiness. Most users report falling asleep within the comedown window.
Commonly Reported Uses
Grower's Notes
White Rhino is a powerhouse indica-dominant hybrid developed by Green House Seeds in the mid-1990s, crossing White Widow with a North American Indica (Afghan lineage). This strain earned its name from the rhinoceros horn-like shape of its topmost cola and has remained a commercial staple for nearly three decades due to its exceptional yield potential and forgiving growth characteristics.
Growth Structure and Training
Plants develop a short, bushy architecture with dense lateral branching and tight internodal spacing, making White Rhino an ideal candidate for Sea of Green (SOG) and Screen of Green (SCROG) configurations where space efficiency is paramount. Indoor heights typically stay between 80-120cm after a standard 4-week vegetative period. The strain responds beautifully to topping at the 3rd or 4th node during veg, which creates multiple main colas and dramatically improves light distribution across the canopy. Low-Stress Training (LST) further opens the dense structure without causing significant stress.
Growing Media
Hydroponic setups tend to produce the strongest, bushiest phenotypes with reduced internodal spacing compared to soil-grown plants. Heavy feeding during vegetative growth supports the plant\u2019s naturally robust frame \u2014 focus on nitrogen-rich nutrients during veg, then transition to phosphorus and potassium-heavy bloom formulas once flowering initiates. The strain is a heavy feeder throughout its lifecycle and rewards generous nutrition with proportionally larger yields.
Flowering Time and Harvest
Flowering completes in approximately 9 weeks under a 12/12 photoperiod, with some phenotypes finishing as early as 8 weeks and others pushing to 10. During this phase, maintaining temperatures between 68-80\u00B0F (20-27\u00B0C) is critical, with nighttime drops of 5-10\u00B0F mimicking natural conditions. Humidity management becomes paramount as buds densify \u2014 reduce RH from 40-60% in early flower down to 35-50% by mid-to-late flower. The extremely dense bud structure makes White Rhino particularly susceptible to botrytis (bud rot) if airflow is inadequate, so moderate defoliation around weeks 5-6 of flower significantly improves air circulation through the canopy.
Yield
Indoor yields are exceptional for an indica, reaching up to 900g/m\u00B2 under optimized conditions with experienced growers. Outdoor plants in warm Mediterranean climates can produce a staggering 1200g per plant when harvested in early-to-mid October. The strain demonstrates good pest and disease resistance overall, though its density demands vigilance against moisture-related issues. Support structures (stakes, trellises, or yo-yos) are essential during late flower as branches struggle under the weight of the massive, resin-coated colas.
History & Origin
White Rhino was developed in the mid-1990s by Green House Seeds in Amsterdam as part of a breeding project to create a more indica-dominant, medicinal offshoot of the White Widow. The strain debuted at the 1996 High Times Cannabis Cup, where it took 2nd place in the Bio category. The name 'White Rhino' references the rhinoceros horn-like shape of the strain's main cola. Shantibaba (Scott Blakey), who co-developed White Rhino alongside Neville Schoenmaker, departed Green House Seeds and took the original parent stock to Mr. Nice Seedbank, where the strain was renamed 'Medicine Man.' White Rhino went on to earn additional awards at the 2005 Champions Cup and the 2007 Spannabis Cannabis Champions Cup.
Awards & Recognition
- ●2nd Place, Bio Category — High Times Cannabis Cup 1996
- ●2nd Place, Hydro Category — Spannabis Cannabis Champions Cup 2005
- ●2nd Place, Bio Category — Spannabis Cannabis Champions Cup 2007
Notable Crosses
Strains bred using White Rhino as a parent:
Frequently Asked Questions
7 common questions about White Rhino
What is White Rhino and what are its genetics?
White Rhino is a hybrid cannabis strain (80% Indica / 20% Sativa) bred by Green House Seeds. It is a cross of White Widow x Afghan, testing at 18–25% THC. White Rhino is a heavy indica-dominant hybrid from the 'White Family' developed by Green House Seeds in the mid-1990s. Named for the rhinoceros horn-shaped main cola it throws under good light, White Rhino was bred to amplify White Widow's legendary resin production while deepening the body stone with Afghan indica genetics.
What does White Rhino smell and taste like?
White Rhino's dominant terpenes are Myrcene. The aroma is described as opens with a heavy earthy and musky base — classic old-school indica. strong hashish and damp soil notes dominate, backed by woody and piney undertones reminiscent of a coniferous forest floor. breaking apart the buds releases sharp spicy and peppery notes with a skunky pungency that fills a room.. The flavor profile features earthy and woody on the inhale with a noticeable sweetness that catches you off guard given the pungent aroma. mid-palate shifts to spicy, peppery notes with hash-like richness. the exhale finishes with diesel and creamy, almost oak-like undertones..
What are the effects of White Rhino?
Fast-acting. Effects register in the face and behind the eyes within minutes of the first hit, then spread downward into the body over 10–15 minutes. Begins with a warm euphoric mental uplift inherited from the White Widow side — a brief window of cerebral clarity before the Afghan indica genetics take over. The body high builds steadily into deep, heavy relaxation that pins most users to the couch. Duration is typically long-lasting. the primary sedative plateau holds for 2–3 hours, tapering into deep drowsiness. most users report falling asleep within the comedown window.. Commonly reported uses include Insomnia, Chronic pain, Muscle spasms, Nausea.
How hard is White Rhino to grow?
White Rhino is rated moderate difficulty. It flowers in 8-10 weeks, reaches short-medium (80-120 cm) in height, and yields up to 900 g/m² indoors. Best suited for indoor preferred environments.
What are the parent strains of White Rhino?
White Rhino is a cross of White Widow and Afghani. White Widow (Brazilian Sativa x South Indian Indica) — one of the most iconic hybrids ever created, known for extreme trichome coverage, balanced euphoria, and the crystalline 'white' appearance that named the family. Afghan Indica — a traditional landrace selected for dense structure, heavy resin output, narcotic body effects, and short flowering time..
What strains were bred from White Rhino?
White Rhino has been used as a parent in several notable crosses, including Albino Rhino, Blue Rhino, Blackberry Rhino, Cluster Cookies, Cripit. Its genetics contribute to a wide range of modern cultivars.
Has White Rhino won any cannabis awards?
Yes. White Rhino has received recognition including 2nd Place, Bio Category — High Times Cannabis Cup 1996; 2nd Place, Hydro Category — Spannabis Cannabis Champions Cup 2005; 2nd Place, Bio Category — Spannabis Cannabis Champions Cup 2007.
Sources & References (22)
- Green House Seeds official product page
- SeedFinder.eu strain info and genealogy
- Mr. Nice Seedbank / Shantibaba Seeds Medicine Man page
- Leafly strain page
- CannaConnection strain info
- StrainGuide grow guide
- DNA Genetics strain review
- GrowDiaries grower reports
- Leafly growing tips
- Blimburn Seeds grow guide
- Seeds Here Now strain review
- Grower's Notes cultivation sources:
- https://www.leafly.com/news/growing/how-to-grow-white-rhino-marijuana
- https://strainguide.app/blog/white-rhino-strain-effects-thc-terpenes-grow-guide/
- https://ganjafarmer.com/9832-white-rhino-feminized.html
- https://blimburnseeds.com/blog/marijuana-crop-guide/how-to-grow-white-rhino-weed/
- https://www.cannaconnection.com/strains/white-rhino
- https://herbiesheadshop.com/ca/cannabis-seeds/white-rhino-green-house-seeds
- https://greenhousebrands.com/green-house-seed-co/
- https://mr-hanf.de/en/seed-shop/white-rhino-green-house-seed
- https://www.northatlanticseed.com/product/new-white-rhino-f/
- https://www.royalqueenseeds.com/cannabis-seeds/white-rhino.html
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