Q aka Charlottes Web: A Comprehensive Strain Guide

Naming, Branding, and the 'Q' Alias

In some markets and dispensary menus, Charlotte’s Web is listed under the alias “Q,” leading to the shorthand “Q aka Charlotte’s Web.” The alias generally appears where retailers aim to avoid trademark complications or to distinguish non-branded, clone-only selections from the proprietary Charlotte’s Web brand. If you see “Q,” ask for a certificate of analysis (COA) to confirm it’s a high-CBD, ultra-low-THC chemotype consistent with Charlotte’s Web.

Charlotte’s Web itself is both a cultivar and a brand developed by the Stanley Brothers in Colorado. It rose to prominence as a high-CBD variety associated with pediatric epilepsy advocacy, most notably the story of Charlotte Figi. The cultivar is known for CBD-dominant chemotypes with total THC typically below the U.S. hemp threshold of 0.3% by dry weight.

Because “Charlotte’s Web” is a registered trademark, not all products labeled as such are authentic or derived from the original genetics. This is why some stores opt for aliases like “Q” for cultivars with a comparable chemotype but without asserting brand origin. As always, laboratory verification is the best way to confirm identity and cannabinoid ratios.

Origin Story and Cultural History

Charlotte’s Web became internationally known after media coverage of Charlotte Figi, a child with Dravet syndrome whose seizures reportedly declined after initiating a CBD-rich cannabis extract. The cultivar’s name honors her, and her story helped catalyze widespread interest in cannabidiol and medical cannabis reform. This public interest contributed to policy shifts, culminating in broader access to hemp-derived CBD following the 2018 U.S. Farm Bill.

The Stanley Brothers bred Charlotte’s Web specifically to deliver a very high CBD:THC ratio, making it non-intoxicating by design. During the early 2010s, access to high-CBD chemotypes was sparse, and Charlotte’s Web helped fill a critical clinical and advocacy gap. As the cultivar’s reputation grew, demand for CBD-rich flower and extracts surged across medical and wellness markets.

The cultivar’s cultural footprint extends beyond cannabis circles. Coverage by mainstream outlets, patient testimonials, and the eventual FDA approval of purified CBD (Epidiolex) for rare epilepsies further normalized CBD. By 2019–2020, CBD had become a mainstream wellness ingredient, with national polls showing majority awareness and acceptance of non-intoxicating cannabis components.

Genetic Lineage and Breeding Notes

The exact lineage of Charlotte’s Web has never been fully disclosed, and that secrecy is part of the brand’s intellectual property strategy. Breeding reports indicate it was selected from high-CBD, low-THC stock through intensive phenotype hunting and stabilization. The end result is a chemotype with a CBD:THC ratio frequently exceeding 20:1 and often surpassing 30:1 in compliant phenotypes.

Unlike many other CBD-rich cultivars derived from Cannatonic or ACDC, Charlotte’s Web is widely described as a proprietary line independent of those popular parents. Some growers have found CW-like phenotypes in seed populations labeled generically as “high-CBD hemp,” but these are not necessarily genetic matches. For consistency, clone-propagation is common; seed-grown populations can show chemotype variability that risks THC drift above legal limits near harvest.

The breeding emphasis for CW-like lines targets low expression of THCA synthase and high expression of CBDA synthase. This enzymatic balance pushes cannabinoid precursors toward CBD production during flowering. Advanced breeders verify these traits using qPCR gene markers and early flower mini-tests, reducing crop loss due to non-compliant THC outcomes.

Botanical Morphology and Appearance

Charlotte’s Web expresses a sativa-leaning morphology with medium-to-tall stature and elongated internodal spacing. Leaves tend to have narrower leaflets compared to broad-leaf indica types, and the plant shows vigorous apical growth. In controlled environments, topping and low-stress training can produce even canopies with multiple colas.

Buds are olive to sage green with amber to tangerine pistils and a frost that appears modest compared to high-THC cultivars. Dense resin capitate-stalked trichomes are present, but the overall resin coverage can appear less sparkling due to differences in cannabinoid and terpene composition. Calyxes stack in speared clusters, often with foxtail-like extensions when grown under high light intensity.

Average indoor heights range from 80–140 cm without training, while greenhouse and outdoor plants can exceed 2 meters. Under high nitrogen in early veg, plants develop robust branching and can be shaped into multi-top bushes. Moderate defoliation improves airflow, reducing the risk of powdery mildew in humid regions.

Aroma and Bouquet

The aromatic profile of Charlotte’s Web is gentle but complex, typically centered on earthy herbal tones with pine and a soft, sweet citrus top note. Many CW phenotypes show a peppery finish on the back end due to sesquiterpenes like beta-caryophyllene. When cured properly, the bouquet leans clean and botanical rather than syrupy sweet or skunky.

Growers frequently describe green, fresh-cut herbal aromas in early cure, which round into chamomile, lemon rind, and forest conifer after 2–4 weeks in glass. This evolution tracks with terpene stabilization and chlorophyll breakdown. Humidity-controlled curing (55–62% RH) tends to retain the pine-citrus brightness.

Total terpene levels are often moderate compared with top-shelf THC cultivars, commonly in the 0.6–1.4% range by dry weight. Higher-terpene CW phenotypes exist and can push above 1.5% with ideal cultivation and slow drying. However, extreme heat or aggressive drying can flatten the bouquet and drive off volatiles in the first 24–48 hours post-harvest.

Flavor and Mouthfeel

Inhaled, Charlotte’s Web typically presents a soft citrus-herb entry, followed by pine resin and a faint pepper tickle. The finish is clean and slightly dry, with a lingering eucalyptus-mint sensation if pinene and eucalyptol are present. Vaporization at 175–190°C often accentuates the citrus and floral components.

Combustion can mute some top notes, pushing the profile toward earth and spice. Proper curing will reduce grassy or hay-like flavors and brighten the lemon-pine elements. Users sensitive to peppery sensations may notice a mild throat prickle associated with beta-caryophyllene and humulene.

In extracts and tinctures, the flavor depends on the extraction method and terpene reintroduction. CO2 extractions with terpene preservation tend to retain pine-citrus notes, while ethanol extracts can taste more herbal or tea-like. Unflavored MCT-based tinctures often exhibit a faint pepper-citrus edge at higher potencies.

Cannabinoid Profile and Ratios

Charlotte’s Web is defined by its high CBD and ultra-low THC content. In compliant phenotypes, total CBD commonly ranges from 12–20% by dry weight, while total THC remains at or below 0.3%. This yields CBD:THC ratios between 20:1 and 60:1, depending on harvest timing and phenotype.

Fresh flower typically contains cannabinoids primarily in their acid forms (CBDA and THCA). After decarboxylation via heat, CBDA converts to CBD and THCA to THC, with the total values estimated by CBDtotal = CBD + (0.877 × CBDA) and THCtotal = THC + (0.877 × THCA). Analytical labs use these formulas to report “total CBD” and “total THC” on COAs.

Minor cannabinoids often detected include CBC (0.1–0.5%), CBG (0.1–0.4%), and trace CBDV (<0.2%), though levels vary. In field-scale hemp, total CBD may average lower than boutique indoor grows, commonly 8–12% depending on genetics and agronomy. Because THC tends to tick upward late in flowering, many CW growers harvest slightly earlier to preserve legal compliance without sacrificing much total CBD.

Terpene Profile and Minor Aromatics

Aggregate lab data from high-CBD hemp shows Charlotte’s Web phenotypes commonly containing beta-caryophyllene (0.2–0.4%), myrcene (0.1–0.3%), alpha-pinene (0.05–0.15%), and humulene (0.05–0.12%). Limonene (0.05–0.15%) and beta-pinene (0.03–0.08%) appear regularly, with linalool in the 0.02–0.06% range. Total terpene content often falls between 0.6–1.4% by weight, influenced heavily by drying speed and storage.

Caryophyllene imparts the pepper-clove signature and uniquely targets CB2 receptors as a dietary cannabinoid. Pinene contributes the crisp pine and potentially helps preserve alertness, balancing the relaxing notes of myrcene. Humulene and limonene round out the herbal-citrus contour, with linalool occasionally adding a floral calm.

Minor volatiles can include eucalyptol (cineole) at trace levels, which some users perceive as a cool, camphor-like note. Terpene ratios can vary between phenotypes even within the same cultivar. Consistent environmental parameters and post-harvest handling are critical to stabilizing these profiles across batches.

Experiential Effects and Use Cases

Because THC is minimal, Charlotte’s Web is functionally non-intoxicating for most users. Many report a calm, clear-headed state with reduced physiological tension and minimal mental fog. Inhaled onset typically occurs within 2–5 minutes, with effects lasting 2–4 hours.

Edible or tincture formats take longer to onset, commonly 30–90 minutes depending on stomach contents and formulation. Duration via oral routes can extend 4–8 hours, with steady baseline effects rather than distinct peaks and valleys. Some users note mild somatic relaxation without psychotropic alterations typical of THC-dominant strains.

At higher CBD doses, a subset of users experience sedation or sleepiness, particularly in the evening. Dry mouth and reduced appetite can occur, though these tend to be mild. Individuals taking medications metabolized by CYP3A4 or CYP2C19 should speak with a clinician due to potential interactions with CBD.

Potential Medical Applications and Evidence

Charlotte’s Web gained fame as a CBD-rich cultivar associated with seizure reduction, but modern medical evidence centers on purified CBD. In randomized controlled trials for Dravet syndrome, CBD produced a median 38–39% reduction in convulsive seizures versus roughly 13–17% for placebo. In Lennox–Gastaut syndrome, drop seizures decreased by about 37–44% with CBD versus around 17% with placebo, using doses of 10–20 mg/kg/day.

While whole-plant extracts like those derived from Charlotte’s Web may offer a broader terpene and minor cannabinoid spectrum, controlled studies have focused on purified CBD. Observational data and patient reports suggest benefits for anxiety, inflammatory pain, and sleep quality, but high-quality trials remain limited in these areas. The FDA-approved product Epidiolex demonstrates that CBD can be effective and safe for specific epilepsies when supervised medically.

Reported adverse events for CBD include somnolence (often 20–30%), diarrhea (9–20%), decreased appetite (16–22%), and elevated liver enzymes, especially in combination with valproate. CBD can increase serum levels of clobazam’s active metabolite, N-desmethylclobazam, enhancing sedation. Anyone considering CBD for medical reasons should consult a clinician, particularly when on anticonvulsants, anticoagulants, or other narrow-therapeutic-index drugs.

Cultivation Guide: Indoors and Greenhouse

Charlotte’s Web thrives in controlled environments where light intensity, vapor pressure deficit (VPD), and nutrition can be dialed in precisely. For vegetative growth, target PPFD of 400–600 µmol/m²/s with a 18/6 or 20/4 photoperiod, day temps of 24–28°C, and RH of 60–70%. For flowering, aim for PPFD of 700–900 µmol/m²/s, day temps of 20–26°C, night temps 18–22°C, and RH stepping from 55% in week 1–2 to 40–45% by week 7–8.

Maintain VPD around 0.8–1.2 kPa in veg and 1.2–1.5 kPa in bloom to balance transpiration and pathogen resistance. In soilless media, set pH to 5.8–6.2; in soil, 6.2–6.8. Electrical conductivity (EC) around 1.2–1.6 in veg and 1.6–2.2 in bloom is typical, with calcium and magnesium support essential under high-intensity LEDs.

CW phenotypes can stretch 1.5–2× during the first three weeks of bloom. Training strategies like topping, SCROG, and selective defoliation keep canopies even and light-efficient. Target 35–60 g/ft² indoors, translating to approximately 400–600 g/m² under optimized conditions.

Integrated pest management is crucial, as CBD hemp must pass stringent testing. Deploy beneficial mites such as Amblyseius swirskii and A. andersoni early to suppress thrips and whitefly, and consider Bacillus thuringiensis for caterpillars. Keep leaf surfaces dry during bloom and ensure 10–15 air exchanges per hour to minimize botrytis and powdery mildew.

Cultivation Guide: Outdoor and Field-Scale Hemp

For outdoor and field-scale cultivation, Charlotte’s Web-type genetics are typically planted after last frost when soil temperatures exceed 12–15°C. Spacing for boutique flower production can be 1.2–1.8 m between plants, while biomass plantings range from 3,000 to 6,000 plants per acre depending on mechanization. Most regions harvest between late September and mid-October, with photoperiod and latitude guiding maturity.

Field yields vary widely with environment and agronomy. A common range is 1,500–2,500 lb of dry biomass per acre, with total CBD content of 8–12% if genetics are compliant and well-managed. This can translate to 120–300 lb of CBD per acre before extraction losses, assuming proper harvest timing and decarboxylation.

Nutrient programs should emphasize nitrogen during vegetative expansion, transitioning to phosphorus and potassium for flower development. Maintain soil pH between 6.0 and 7.0 and ensure adequate calcium, magnesium, sulfur, and micronutrients. Drip irrigation with tensiometers or soil moisture probes helps avoid stress that can trigger THC spikes late in flower.

Risk management for compliance is essential in the field. Some CW-like lines can drift above 0.3% total THC if left too long, particularly under heat stress. Pre-harvest sampling 15–20 days before the official compliance test allows a corrective early harvest if THC trends upward.

Harvest, Drying, Curing, and Compliance

Choose harvest timing by tracking both total CBD and total THC through weekly lab mini-tests. In compliant CW phenotypes, total CBD often rises rapidly from weeks 5–7 of bloom, while THC remains low but can increase in the final 10–14 days. Many growers harvest 5–10 days earlier than a THC cultivar to lock in legal compliance without significant CBD loss.

Hand-harvest whole plants or large branches to protect delicate trichomes. Dry at 15–18°C (59–64°F) and 55–60% RH with steady airflow but no direct wind, aiming for a 10–14 day dry. When small stems snap rather than bend, buds are typically 9–12% moisture, aligning with target water activity below ~0.65.

Cure in airtight containers at 55–62% RH, burping daily for the first week and then weekly thereafter. Two to four weeks of cure significantly improves flavor and smoothness for CW’s herbal-pine profile. For wholesale biomass, hang-drying in shaded barns and then bucking to food-grade totes is common; keep temperatures low to preserve terpenes and prevent mold.

Compliance testing requires validated labs and standard total THC calculations. Remember that decarboxylation during smoking or extraction converts CBDA to CBD and THCA to THC, so pre-harvest tests always rely on the “total” formula. Keep meticulous records of sampling dates, lab results, and lot tracking to pass audits.

Processing, Extraction, and Product Forms

Charlotte’s Web flower is commonly transformed into tinctures, softgels, topicals, and vaporizer formulations. Supercritical CO2 extraction yields a clean, solvent-free crude that can be winterized and refined, preserving a portion of the native terpene profile. Ethanol extraction is efficient for large-scale