P91
Also known as: P-91, Project 91
What is the P91 strain?
P91 is a hybrid cannabis strain with up to 24.0% THC, known for its euphoric effects and citrus and diesel flavor profile.
P91 is a legendary cannabis strain with origins tracing back to the 1990s in Southern California. The strain was reportedly developed by a breeder known as 'The Chemist' who worked with a collective of growers to create this potent hybrid. The name 'P91' stands for 'Project 91,' referencing the year 1991 when the breeding project began, though some sources suggest the 'P' may stand for 'Pure' or refer to a particular phenotype selection process. The strain gained notoriety in the medical cannabis community during the late 1990s and early 2000s for its consistent quality and powerful effects.
P91 plants typically display dense, resinous buds with a distinctive appearance featuring dark green foliage often accented with purple hues and vibrant orange pistils. The buds are known for their exceptional trichome coverage, giving them a frosty, crystalline appearance. The strain's aroma is complex and pungent, combining earthy, diesel-like notes with subtle hints of citrus and pine. When properly cured, P91 produces thick, expansive smoke that many users describe as smooth despite its potency.
This strain has maintained a cult following among cannabis connoisseurs despite not achieving widespread commercial distribution. P91 is particularly noted for its balanced effects that combine cerebral stimulation with physical relaxation, making it suitable for various times of day. The strain's genetics have influenced numerous other popular hybrids, though the original P91 remains relatively rare outside of certain West Coast cannabis circles. Its reputation for consistency and potency has made it a benchmark against which other hybrids are sometimes measured.
What are the effects of P91?
What are the medical benefits of P91?
- Users report relief from chronic pain conditions
- May help with stress and anxiety management
- Often used for appetite stimulation
- Some users find it helpful for migraine relief
- Reported to aid with insomnia when used in higher doses
This is not medical advice. Consult a healthcare professional.
What are the side effects of P91?
- 💧 Dry Mouth
- 👁️ Dry Eyes
- 😰 Anxiety
- Dry mouth (common)
- Dry eyes (common)
- Possible anxiety or paranoia in sensitive users or high doses
- Dizziness in some users
- May cause couch-lock in higher quantities
How do you grow P91?
P91 is considered a moderate-difficulty strain to cultivate, best suited for experienced growers. The plants typically flower in 8-10 weeks indoors and are ready for outdoor harvest in late September to early October in the Northern Hemisphere. Indoor yields are generally moderate to high, producing approximately 400-500 grams per square meter under optimal conditions. Outdoor plants can yield 500-600 grams per plant in favorable climates.
The strain prefers a Mediterranean-like climate with consistent temperatures and low humidity during flowering to prevent mold issues. P91 plants tend to be medium in height, reaching 3-5 feet indoors and 5-7 feet outdoors. They respond well to training techniques like topping and low-stress training to maximize yields. The plants require good air circulation and benefit from regular pruning to ensure light penetration to lower bud sites. Nutrient requirements are moderate, but the strain is sensitive to overfeeding, particularly during the flowering phase.
How should you use P91?
P91 is a hybrid strain with 24.0% THC, which is moderate potency. As a hybrid, it offers versatility for both daytime and evening use.
Beginners
Start with 1-2 small inhalations or 2.5-5mg if using edibles. Wait 15 minutes before taking more. This strain is potent — start very low.
Regular Users
A standard session of 3-5 inhalations or 5-15mg edible dose. Effects typically onset within 5-15 minutes when inhaled, 30-90 minutes for edibles.
Experienced Users
Adjust to personal tolerance. Moderate doses should provide a satisfying experience.
Start low and go slow. This is not medical advice — consult a healthcare professional before using cannabis.
What is the genetic lineage of P91?
What are P91's parent strains?
Frequently Asked Questions
How does P91 make you feel?
P91 is a hybrid strain that primarily produces euphoric effects, followed by relaxed. Users report the dominant effect at 85% intensity. With 24.0% THC, this strain is moderately strong and suitable for regular consumers.
Is P91 good for medical use?
P91 has been reported by users for users report relief from chronic pain conditions, may help with stress and anxiety management, often used for appetite stimulation, some users find it helpful for migraine relief, reported to aid with insomnia when used in higher doses. As a hybrid, it offers a balanced profile that may work throughout the day.
This is not medical advice. Consult a healthcare professional.
Are there side effects with P91?
Some users have reported dry mouth, dry eyes, anxiety, dry mouth (common), dry eyes (common), possible anxiety or paranoia in sensitive users or high doses, dizziness in some users, may cause couch-lock in higher quantities when using P91. Starting with a low dose and staying hydrated can help minimize these effects.
What does P91 taste and smell like?
P91 features a flavor profile of citrus, diesel, earthy, pine, spicy. The dominant terpenes are Myrcene and Caryophyllene, which contribute to its distinctive aroma.
What do users say about P91?
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What does the research say about P91?
P91 is a hybrid cannabis strain containing up to 24.0% THC, with a terpene profile dominated by Myrcene and Caryophyllene. Below are authoritative resources for understanding the compounds in this strain.
Cannabinoid Information
Cannabis Regulations & Safety
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