Ultra Critical
Also known as: Critical Ultra, Ultra Critical Auto
What is the Ultra Critical strain?
Ultra Critical is a hybrid cannabis strain with up to 22.0% THC, known for its relaxed effects and citrus and earthy flavor profile.
Ultra Critical is a hybrid cannabis strain developed by combining Critical Mass and an undisclosed Ultra strain, though some sources suggest it may involve Ultra Skunk genetics. This strain emerged in the early 2000s from European breeding programs, specifically from the Spanish seed bank Dinafem, which has since ceased operations. The strain was bred to maximize resin production while maintaining the desirable effects and flavors of its parent strains.
Ultra Critical plants typically display dense, conical buds with a frosty appearance due to abundant trichome coverage. The coloration ranges from deep forest green to sometimes purple hues, with vibrant orange pistils weaving through the compact flower structure. The buds are known for their sticky texture and heavy resin production, making them popular among concentrate producers. The strain's aroma is particularly notable, combining earthy base notes with sharp citrus and skunky undertones.
This strain has gained popularity in both recreational and medicinal cannabis communities for its balanced effects and reliable performance. While not as widely documented as some mainstream strains, Ultra Critical has maintained a consistent presence in European markets and has been used in breeding programs to create autoflowering variants. The strain's genetics contribute to its resilience and adaptability to various growing conditions.
What are the effects of Ultra Critical?
What are the medical benefits of Ultra Critical?
- Users report relief from stress and anxiety
- May help with mild to moderate pain management
- Often used for insomnia and sleep difficulties
- Some users report appetite stimulation
This is not medical advice. Consult a healthcare professional.
What are the side effects of Ultra Critical?
- 💧 Dry Mouth
- 👁️ Dry Eyes
- 😰 Anxiety
- Dry mouth (cottonmouth)
- Dry eyes
- Possible dizziness in novice users
- Mild anxiety or paranoia in sensitive individuals or high doses
How do you grow Ultra Critical?
Ultra Critical is considered a moderate-difficulty strain suitable for growers with some experience. The plants have a flowering time of approximately 8-9 weeks indoors and are ready for harvest by late September to early October outdoors. Indoor yields typically range from 400-500 grams per square meter, while outdoor plants can produce 500-600 grams per plant. The strain performs well in both indoor and outdoor environments, preferring Mediterranean-like climates with consistent temperatures. Plants tend to be medium in height, reaching 100-150 cm indoors and 150-200 cm outdoors. Special considerations include providing good air circulation to prevent mold in the dense buds and implementing training techniques like topping or LST to maximize yield. The strain responds well to organic nutrients and benefits from a flush period before harvest.
How should you use Ultra Critical?
Ultra Critical is a hybrid strain with 22.0% 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 Ultra Critical?
What are Ultra Critical's parent strains?
Frequently Asked Questions
How does Ultra Critical make you feel?
Ultra Critical is a hybrid strain that primarily produces relaxed effects, followed by euphoric. Users report the dominant effect at 75% intensity. With 22.0% THC, this strain is moderately strong and suitable for regular consumers.
Is Ultra Critical good for medical use?
Ultra Critical has been reported by users for users report relief from stress and anxiety, may help with mild to moderate pain management, often used for insomnia and sleep difficulties, some users report appetite stimulation. 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 Ultra Critical?
Some users have reported dry mouth, dry eyes, anxiety, dry mouth (cottonmouth), dry eyes, possible dizziness in novice users, mild anxiety or paranoia in sensitive individuals or high doses when using Ultra Critical. Starting with a low dose and staying hydrated can help minimize these effects.
What does Ultra Critical taste and smell like?
Ultra Critical features a flavor profile of citrus, earthy, pine, skunk, sweet. The dominant terpenes are Myrcene and Limonene, which contribute to its distinctive aroma.
What do users say about Ultra Critical?
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What does the research say about Ultra Critical?
Ultra Critical is a hybrid cannabis strain containing up to 22.0% THC, with a terpene profile dominated by Myrcene and Limonene. Below are authoritative resources for understanding the compounds in this strain.
Cannabinoid Information
Cannabis Regulations & Safety
What strains are similar to Ultra Critical?
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