Perfect Balance for Medical Relief
CBD Shark is a carefully crafted 1:1 THC:CBD strain designed for medical cannabis users who want the therapeutic benefits of CBD alongside a mild, manageable psychoactive experience. Derived from Shark Shock genetics and crossed with a high-CBD indica, this strain delivers calming, clear-headed relief that's perfect for managing anxiety, chronic pain, inflammation, and stress. Its compact indica structure makes it easy to grow indoors, and its forgiving nature means even first-time growers can achieve a quality harvest.
7%
7%
8 weeks
Medium
70–100 cm
Beginner
Balanced, Calming, Clear-headed
Sweet, Citrus, Earthy
Everything you need to know to grow CBD Shark successfully — from seed to harvest.
Germination
3–5 days
Standard germination. CBD Shark germinates reliably with paper towel method.
Seedling
1–2 weeks
Healthy, compact seedling growth. Indica structure visible early.
Vegetative
4–5 weeks
Bushy, compact growth. Top once for wider canopy if desired.
Flowering
8 weeks
Dense bud development. CBD levels peak in final 2 weeks of flower.
Harvest
Day 75–85
Harvest when trichomes are mostly milky with 10–20% amber for max CBD.
Low CBD in final product
Harvest later (more amber trichomes), flush properly, and dry/cure slowly.
Bud rot on dense colas
Improve airflow, reduce humidity below 45% in late flower, defoliate around buds.
Magnesium deficiency (yellowing between veins)
Add Cal-Mag supplement at 5ml/gallon. Check pH is not too high.
Slow flowering
Ensure strict 12/12 light cycle with zero light leaks during dark period.

Get the LED grow lights, grow tents, and complete kits you need to grow CBD Shark indoors. Trusted by home growers across Canada.
Shop Mars Hydro CanadaWeek-by-week feeding recommendations to maximize yield and potency.
Week 1–2
SeedlingMinimal feeding. CBD strains prefer lighter nutrient loads overall.
Week 3–5
VegetativeModerate veg feeding. Avoid excess nitrogen for cleaner CBD expression.
Week 6–7
Early FlowerTransition to bloom. Add Cal-Mag and a CBD-specific bloom booster if available.
Week 8–10
Mid-Late FlowerPeak CBD production phase. Keep stress low. Avoid temperature swings.
Week 11–12
FlushFlush with plain water. Critical for clean, smooth medicinal flavour.
Note: NPK values are relative percentages of maximum recommended dose, not absolute measurements. Always follow your specific nutrient brand's guidelines and adjust based on plant response.
Get your seeds from Crop King Seeds — backed by an 80% germination guarantee and discreet worldwide shipping.
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