Critical XL
Also known as: Critical XL Auto, Critical XL Autoflower
Critical XL Strain Overview
Critical XL is a hybrid cannabis strain developed by Royal Queen Seeds that combines the genetics of Critical Mass and an undisclosed Ruderalis strain. The strain was specifically bred to create a high-yielding autoflowering variety that maintains the desirable characteristics of its photoperiod parent while adding the convenience of automatic flowering. First introduced in the early 2010s, Critical XL quickly gained popularity among both commercial and home growers for its impressive yields and relatively short life cycle.
The plant typically displays a classic indica-dominant structure with broad, dark green leaves and dense, resinous buds. The flowers are often large and compact, with orange pistils weaving through the trichome-covered calyxes. Critical XL is known for its robust growth pattern and resistance to common molds and pests, making it suitable for less experienced cultivators. The strain's name reflects both its genetic heritage from Critical Mass and its 'extra large' yield potential.
Notable features include its autoflowering capability, which allows it to transition from vegetative growth to flowering based on age rather than light cycle changes. This characteristic makes it particularly appealing for growers in regions with shorter growing seasons or those seeking multiple harvests per year. The strain has become a staple in many seed banks' autoflowering collections due to its consistent performance and reliable results across various growing conditions.
Critical XL Strain Effects
Critical XL Strain Positive Effects
- Users report relief from stress and anxiety
- May help with insomnia and sleep disorders
- Often used for mild to moderate pain management
- Some users find it helpful for appetite stimulation
This is not medical advice. Consult a healthcare professional.
Critical XL Strain Possible Negative Effects
Critical XL Strain Growing Information
Critical XL is considered an easy-to-grow strain suitable for beginners. As an autoflowering variety, it has a total life cycle of approximately 10-12 weeks from seed to harvest. Indoor flowering time is typically 8-9 weeks, while outdoor plants in the Northern Hemisphere are usually ready by late September. The strain performs well both indoors and outdoors, with indoor yields averaging 400-500 grams per square meter and outdoor plants producing 50-150 grams each.
Plants typically reach a moderate height of 80-120 cm indoors and 100-150 cm outdoors, making them manageable for most growing spaces. Critical XL prefers a Mediterranean-like climate with plenty of sunlight when grown outdoors. The strain is known for its resistance to mold and pests, though proper ventilation is still recommended to prevent bud rot in dense flowers. Nutrient requirements are moderate, and the plant responds well to standard feeding schedules. Training techniques like low-stress training (LST) can help maximize yields, but the autoflowering nature means growers should avoid high-stress techniques that could stunt growth during the short vegetative period.
Critical XL Strain Genetics
Critical XL Strain Parent Strains
Frequently Asked Questions
How does Critical XL make you feel?
Critical XL is known to produce the following effects:
- Relaxed: 85%
- Euphoric: 75%
- Happy: 70%
- Sleepy: 65%
What are the positive effects of Critical XL?
Critical XL has these reported positive effects:
- Users report relief from stress and anxiety
- May help with insomnia and sleep disorders
- Often used for mild to moderate pain management
- Some users find it helpful for appetite stimulation
This is not medical advice. Consult a healthcare professional.
What are the negative effects of Critical XL?
Possible negative effects include:
- Dry Mouth
- Dry Eyes
- Anxiety
- Dry mouth (common)
- Dry eyes (common)
- Possible dizziness in high doses
- May cause anxiety or paranoia in sensitive users
What does Critical XL taste like?
Critical XL has the following flavor profile:
- Citrus
- Earthy
- Pine
- Sweet