Critical Fast Seeds

Price range: $65.00 through $255.00

A rapid-flowering version of the well-known Critical line, bred for shorter bloom times while preserving its sturdy structure and uniform performance. Critical Fast Seeds produce reliable, high-vigor plants that finish up to two weeks earlier than standard photoperiod types—perfect for growers in regions with shorter seasons or anyone seeking a quicker harvest cycle without sacrificing quality.

Critical Fast grows with strong stems, short internodes, and a balanced canopy ideal for even light distribution. The plants form dense clusters of bright green flowers covered in fine resin, displaying a classic, symmetrical growth pattern. This line retains the robust nature and consistency of the original Critical genetics while adding an early-finishing trait that enhances adaptability in cooler or variable climates. Its combination of reliability, speed, and visual appeal makes it a standout choice for both breeding and production gardens.

Start seeds indoors several weeks before transplanting, maintaining steady soil temperatures around 70–80 °F / 21–27 °C. Provide full sun and well-drained, nutrient-rich soil. Plants respond well to topping or training to encourage wider canopy formation. Expect flowering to complete in just 7–8 weeks, producing strong, compact plants with excellent uniformity.

Days to Germination: 5–10
Flowering Time: 7–8 weeks
Plant Habit: Compact, sturdy structure with short internodes
Color Expression: Bright green with light amber pistils
Use: Quick-flowering photoperiod / collector line
Sun/Soil: Full sun; rich, well-drained soil
Zones: 8–11 (outdoors with warm season)

Type: Fast photoperiod | Sun: Full | Height/Spread: 3–5 ft × 3–4 ft | Spacing: 24–36 in | Depth: ¼ in | Germination: 5–10 days | Maturity: 7–8 weeks | Zones: 8–11

Seeds are sold for horticultural use. Results vary by climate and gardener skill. Not a food, supplement, or medicine. Follow local regulations.