¶ ACDC
¶ Overview
ACDC is a landmark CBD-dominant cannabis strain that helped define the modern high-CBD category. Selected as a specific phenotype of Cannatonic itself a cross of MK Ultra and G13 Haze ACDC was identified in a seed pack sourced from the Spanish seed bank Resin Seeds and championed by Dr. William Courtney for its exceptionally high CBD content. Lawrence Ringo of the Southern Humboldt Seed Collective then worked to stabilize and propagate the phenotype, making it one of the most recognizable names in medical cannabis.
The strain typically exhibits a CBD-to-THC ratio of approximately 20:1, with CBD levels commonly ranging from 15% to 24% and THC kept below 6%, often under 1%. This profile produces minimal psychoactive effects, allowing users to experience therapeutic benefits while remaining fully functional, alert, and coordinated throughout the day.
ACDC has become a go-to recommendation from medical cannabis practitioners for patients seeking relief from chronic pain, inflammation, anxiety, and neurological conditions without the cognitive impairment associated with high-THC strains. Its compact, bushy growth habit and relatively straightforward cultivation have also made it accessible to home growers.
¶ Quick Stats
| Attribute | Value |
|---|---|
| Type | Hybrid (50% Indica / 50% Sativa) |
| THC % | 0.3%–6% |
| CBD % | 15%–24% |
| Dominant Terpenes | Myrcene, Beta-Caryophyllene, Alpha-Pinene |
| Flowering Time | 8–10 weeks (56–70 days) |
| Yield | 350–450 g/m² indoor |
| Growing Difficulty | Easy to Moderate |
¶ Genetics & Lineage
ACDC is a selected phenotype of Cannatonic.
- Cannatonic (phenotype) -- A high-CBD hybrid originally bred by Resin Seeds (Spain) from MK Ultra and G13 Haze parents; selected specifically for elevated CBD expression.
- Unknown Ruderalis (possible) -- Some cultivars show autoflowering traits suggesting minor Ruderalis influence in certain lineages, though this is not universal across all ACDC cuts.
Parent lineage: Cannatonic (MK Ultra x G13 Haze) phenotype
The phenotype was originally discovered in a seed pack from Resin Seeds, a Spanish seed bank, and was identified by Dr. William Courtney for its remarkable CBD-to-THC ratio. Lawrence Ringo of the Southern Humboldt Seed Collective in Northern California then worked over several years to stabilize and propagate the phenotype through careful selection, making it widely available to patients and cultivators. The work was part of a broader movement in the late 2000s and early 2010s to breed high-CBD strains for medical applications, alongside Ringo's other notable creations such as Sour Tsunami and Ringo's Gift.
¶ Cannabinoid Profile
| Cannabinoid | Typical Range |
|---|---|
| THC (Total) | 0.3%–6% |
| CBD | 15%–24% |
| CBG | 0.1%–1% |
| CBN | <0.1%–0.5% |
The defining feature of ACDC is its exceptionally high CBD-to-THC ratio, which typically sits around 20:1 but can vary between 14:1 and 24:1 depending on the specific cut and growing conditions. CBD levels in the 15%–24% range are common in well-cultivated flower, while THC is kept low enough (usually under 1%, occasionally up to 6%) that most users report little to no intoxication. CBG, the "mother cannabinoid," appears in trace to low amounts as is typical for mature flower. CBN, a degradation product of THC, remains minimal in fresh, properly stored flower and only rises with age or oxidation.
¶ Terpene Profile
| Terpene | Approximate Share | Notes |
|---|---|---|
| Myrcene | 0.3%–0.8% | Most dominant terpene; earthy, herbal, and lemony aroma; associated with body-centered relaxation |
| Beta-Caryophyllene | 0.2%–0.5% | Spicy, peppery, clove-like; directly binds to CB2 receptors for anti-inflammatory support |
| Alpha-Pinene | 0.1%–0.4% | Fresh pine and forest scent; promotes mental clarity and alertness |
| Limonene | 0.1%–0.3% | Bright citrus and lemon notes; uplifting and mood-elevating properties |
| Humulene | 0.05%–0.2% | Earthy, woody, slightly spicy; contributes to the strain's grounding aroma |
ACDC's terpene profile reinforces its therapeutic character. Myrcene leads the profile, providing the earthy-herbal backbone and supporting physical relaxation. Beta-caryophyllene adds a peppery spice and uniquely interacts directly with the endocannabinoid system via CB2 receptor binding. Alpha-pinene contributes crisp pine freshness and may help counteract any residual mental fog, while limonene adds a bright citrus lift to the overall experience. Humulene rounds out the profile with subtle earthy and woody undertones.
¶ Effects & Experience
ACDC is commonly reported to produce:
- Clear-Headed Relaxation -- A calm, steady sense of ease without mental fog or cognitive impairment; users remain fully functional and alert.
- Physical Ease -- Noticeable soothing of muscle tension and bodily discomfort; gentle body-centered relaxation without heavy sedation.
- Mental Clarity -- Sharpened focus and concentration; racing thoughts tend to slow, making it suitable for daytime use.
- Mood Elevation -- A subtle uplift in mood and sense of well-being; reduces tension and anxious thinking without strong psychoactive shifts.
?.Effects are self-reported and vary by individual, dose, tolerance, and consumption method. Not a prediction of any individual's experience.
Onset: Effects are typically felt within minutes when inhaled, with a gradual build over 10–15 minutes. When consumed as an edible or tincture, onset ranges from 30–90 minutes.
Duration: Inhaled effects generally last 2–4 hours. Edible or sublingital formulations may extend the duration to 4–6 hours or longer.
Intensity: Low to mild. ACDC is specifically bred to minimize intoxicating effects. Most users report a gentle, functional experience suitable for all-day use.
⚠️ Effects are self-reported and vary by individual, dose, tolerance, and consumption method. Not a prediction of any individual's experience.
¶ Aroma & Flavor
- Smell: Earthy and herbal with prominent notes of fresh pine, subtle citrus (lemon), and a hint of peppery spice. The aroma is smooth and understated rather than pungent, with woody and slightly sweet undertones.
- Taste: Smooth and mild on the inhale with herbal and earthy notes, a touch of citrus sweetness, and a gentle pine-and-pepper finish. The flavor is clean and approachable, without the heavy skunk or fuel notes common in high-THC cultivars.
¶ Medical Uses
Not Medical Advice -- The following lists commonly reported therapeutic applications. This does not constitute medical advice. Consult a healthcare professional before using cannabis therapeutically.
Commonly reported uses include:
- Chronic Pain -- The high CBD content, combined with beta-caryophyllene's CB2 activity, is commonly associated with relief from persistent pain, nerve discomfort, and muscle soreness.
- Inflammation -- Reported to help reduce inflammatory symptoms associated with conditions like arthritis, multiple sclerosis, and fibromyalgia.
- Anxiety and Stress -- The minimal THC and prominent myrcene and limonene profile are linked to calming effects that ease anxious thoughts without sedation, making it suitable for daytime anxiety management.
- Seizure Disorders -- High-CBD strains like ACDC are commonly explored as adjunctive support for epilepsy and seizure-related conditions, consistent with broader research on CBD's anticonvulsant properties.
- PTSD and Mood Support -- Users report that ACDC helps take the edge off traumatic stress responses and mood instability while maintaining mental clarity and daily functioning.
¶ Adverse Effects
Commonly reported adverse effects:
- Dry mouth (cottonmouth)
- Mild drowsiness or fatigue (especially at higher doses)
- Temporary appetite changes
- Potential interactions with prescription medications (CBD is metabolized by CYP450 liver enzymes)
¶ Growing Information
| Attribute | Details |
|---|---|
| Difficulty | Easy to Moderate -- forgiving for beginners; stable genetics from phenotype selection |
| Flowering Time | 8–10 weeks (56–70 days) indoors; outdoor harvest typically early to mid-October |
| Yield | Indoor: 350–450 g/m² -- Outdoor: 400–450 g/plant |
| Plant Height | Medium, typically 3–4 feet (90–120 cm); compact and bushy structure with modest-sized colas |
| Preferred Environment | Controlled indoor environments with stable temperatures (68°F–78°F / 20°C–26°C) and consistent nutrients; outdoors thrives in Mediterranean climates with full sun |
| Resistance | Moderate resistance to common pests and molds; requires good airflow and proper pruning of lower branches to prevent moisture buildup; some cultivars with Ruderalis influence show added hardiness |
ACDC is a relatively compact plant with a bushy, skunk-like growth pattern. Its moderate height makes it well-suited for indoor grow spaces, sea-of-green setups, and discreet outdoor gardens. The plant produces finger-sized, dense, resinous buds rather than massive colas. Maintaining a stable environment with consistent pH (6.0–6.5 for soil), adequate airflow, and regular inspection for mold is recommended. Lower branches should be pruned to improve air circulation and direct energy to the main canopy. Propagation is typically done via cloning from mother plants, as stable ACDC cuttings are available from select cultivators. Some phenotypes may exhibit autoflowering characteristics if Ruderalis genetics are present.
¶ Awards & Recognition
- Recognized as one of the most celebrated high-CBD strains in North America and widely recommended by medical cannabis practitioners.
- Won multiple awards at regional cannabis cup events specifically for its CBD content and therapeutic value.
- Featured prominently in Leafly's and other industry publications' lists of top high-CBD strains.
- Part of Lawrence Ringo's legacy as one of the pioneering breeders of the modern high-CBD cannabis movement.
¶ Similar Strains
- Charlotte's Web -- Another ultra-high-CBD strain with very low THC (<1%), famous for its use in pediatric epilepsy treatment; even less psychoactive potential than ACDC but with a similar therapeutic focus.
- Harlequin -- A high-CBD sativa-dominant hybrid with a CBD:THC ratio closer to 5:2; offers mild euphoria alongside therapeutic relief, making it slightly more intoxicating than ACDC.
- Cannatonic -- The parent strain of ACDC; exhibits a more variable CBD:THC ratio (typically 1:1 to 1:6) and offers a broader range of effects depending on the specific phenotype.
- Ringo's Gift -- Named after Lawrence Ringo himself, this high-CBD strain (often 10:1 to 20:1 CBD:THC) was bred from ACDC and Harle-Tsu genetics, carrying forward Ringo's high-CBD breeding legacy.