Near-Zero THC, Maximum CBD Relief
ACDC is one of the most celebrated high-CBD strains in the world, renowned for its extraordinary 20:1 CBD to THC ratio. Derived from a specific phenotype of Cannatonic, ACDC delivers powerful therapeutic benefits — including relief from anxiety, chronic pain, epilepsy, and inflammation — without any significant psychoactive effect. This makes it ideal for patients who need to remain clear-headed and functional throughout the day. Growing ACDC requires some intermediate knowledge, particularly around maintaining the correct pH and nutrient balance to maximize CBD expression.
1%
20%
9–10 weeks
Medium
90–130 cm
Intermediate
Clear-headed, Focused, Pain-relieving
Earthy, Woody, Sweet
Everything you need to know to grow ACDC CBD successfully — from seed to harvest.
Germination
3–6 days
Slightly slower germination than high-THC strains. Be patient.
Seedling
2 weeks
Healthy green seedling. Sativa-leaning structure with narrow leaves.
Vegetative
5–6 weeks
Moderate growth rate. Train gently to open canopy for light penetration.
Flowering
9–10 weeks
CBD levels build steadily. Buds are lighter and airier than high-THC strains.
Harvest
Day 95–110
Harvest when trichomes are mostly milky. Amber trichomes indicate CBD peak.
Lower CBD than expected
Harvest later, flush longer, and ensure pH was stable throughout grow. Genetics also vary.
Slow growth compared to THC strains
Normal for ACDC. Be patient and avoid overfeeding to compensate.
Iron deficiency (yellowing new growth)
Lower pH slightly to 6.0 and add a chelated iron supplement.
Mould on buds in humid conditions
ACDC buds are airy but still susceptible. Keep humidity below 45% in flower.

Get the LED grow lights, grow tents, and complete kits you need to grow ACDC CBD 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. ACDC is sensitive — start at 15% of recommended dose.
Week 3–5
VegetativeLight veg feeding. Focus on healthy root and leaf development.
Week 6–8
Early FlowerGentle bloom transition. Avoid aggressive PK boosters with CBD strains.
Week 9–11
Mid-Late FlowerCBD accumulation phase. Keep stress minimal. Maintain stable pH.
Week 12–13
FlushExtended flush for clean, smooth medicinal quality. 10–14 days of plain water.
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 Rocket Seeds — backed by an 80% germination guarantee and discreet worldwide shipping.
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