413 concord grape strain: A Comprehensive Strain Guide

Overview and Naming

413 Concord Grape is a boutique, grape-forward cannabis cultivar whose moniker nods to the 413 area code of western Massachusetts and the unmistakable Concord grape flavor it evokes. The name signals both a regional identity and a sensory promise: dense purple flowers that smell like a freshly opened jar of grape jelly.

Because 413 Concord Grape circulates primarily in small-batch, craft channels, publicly posted laboratory results are limited as of 2025. This guide synthesizes grower accounts, sensory reports, and benchmarks from comparable grape-leaning hybrids to give you a precise, data-backed portrait of what to expect.

Consumers seek 413 Concord Grape for its combination of nostalgic candy-like notes and balanced, relaxing effects. It is commonly described as a hybrid with an indica-leaning finish suitable for evening unwinding without complete couchlock.

In many markets, grape-flavored cultivars consistently occupy top-10 aroma preferences among fruit categories, and 413 Concord Grape squarely targets that demand. The strain’s success hinges on maintaining a vivid terpene expression that reads unmistakably as “Concord grape” while preserving contemporary potency levels.

Origins and History

The 413 label suggests western Massachusetts roots, a region that has developed a reputation for meticulous indoor craft flower since legalization. Localized breeding projects often emphasize terroir-inspired branding, and 413 Concord Grape fits that pattern with a flavor profile steeped in New England’s cultural familiarity with Concord grapes.

Concord grape as a flavor cue connects to Vitis labrusca, the species behind classic grape juice and jelly. Translating that profile into cannabis typically involves selecting for floral-berry esters, purple anthocyanin expression, and terpene blends that skew fruity and lush rather than citrus-sharp or gas-heavy.

Grape-themed cannabis cultivars rose to prominence in the 2000s with lines like Granddaddy Purple, Grape Ape, and Grape Stomper. 413 Concord Grape is best understood as a modern iteration intended to deliver clearer, candy-like concord notes with more contemporary resin output and trichome coverage.

Because the strain has moved primarily through connoisseur networks, its early releases were limited and highly phenotype-dependent. This scarcity helped drive interest and allowed small producers to tune their cut selection for maximum grape intensity before broader distribution.

Genetic Lineage and Breeding Notes

As of this writing, a definitive public pedigree for 413 Concord Grape has not been published. Breeders and growers commonly speculate that it descends from a grape-heavy line such as Grape Pie, Grape Stomper, or an updated Granddaddy Purple cross to increase resin density and potency.

The flavor target suggests a chemotype with boosted monoterpenes like myrcene and ocimene supported by floral linalool or geraniol, plus a peppery backbone from beta-caryophyllene. Modern breeders often stack grape-forward parents with dessert cultivars to stabilize sweetness while maintaining THC in the 20% range.

Purple coloration is usually mediated by anthocyanin expression, which is polygenic and environmentally responsive. Lines with Purple Urkle, Mendo Purps, or GDP ancestry tend to color readily in the right conditions, and 413 Concord Grape likely carries similar alleles given its consistent violet hues.

Breeding for Concord-like aromatics may also lean on rare or trace volatiles, including methyl anthranilate-like notes, which are iconic in grape candy and juice. While not universally expressed in cannabis, related esters and aldehydes can appear at parts-per-million or parts-per-billion levels, significantly shaping the perceived nose.

In practice, growers report that 413 Concord Grape behaves as a compact-to-medium hybrid with a manageable stretch and dense, terpene-rich flowers. This growth habit aligns with many grape-derived lines that prioritize bag appeal and terpene saturation over raw biomass.

Appearance and Structure

Expect medium-sized, pinecone-shaped colas with tightly stacked calyxes and thick, frosty trichome coverage. In optimal conditions, flowers display deep green to violet-purple bracts with contrasting orange pistils that darken to copper as they mature.

Anthocyanin expression often intensifies under cooler late-flower temperatures, presenting a gradient from lavender edges to nearly black-purple bract tips. Growers commonly report that dropping night temps to 62–66°F (16.5–19°C) for the final two weeks accentuates color without stalling ripening.

Under magnification, capitate-stalked trichome heads typically measure around 60–120 micrometers in diameter, with dense coverage on the bract and sugar leaf surfaces. Resin heads appear milky to cloudy at peak ripeness, and the cultivar tends to form sticky, tactile resin that rings a joint quickly.

Bud density is above average, which increases the importance of airflow to avoid microclimates. Trim quality can be exceptional, with minimal crow’s feet and a photogenic frost that performs well in macro photography and retail displays.

Aroma

True to its name, 413 Concord Grape presents a vivid grape jelly and purple-candy nose on first grind. Many users also detect a bouquet of wild berry, faint floral lilac, and a peppery base note that keeps the sweetness from becoming cloying.

Warm jar tests often reveal deeper layers of jammy plum, blackcurrant, and a hint of vanilla or pastry sweetness. The pepper-spice undertone, suggestive of beta-caryophyllene, lends structure and helps the aroma persist after grinding.

Comparative analyses of grape-leaning cultivars show total terpene content frequently landing between 1.5% and 3.0% by weight in well-grown indoor flower. 413 Concord Grape aligns with that profile, presenting an assertive aroma that reads clearly even through packaging.

Some batches exhibit trace ester-like nuances reminiscent of grape soda or candy, which can derive from minor volatiles at parts-per-million or lower. While cannabis chemistry varies, the human nose can detect select aroma compounds at sub-ppm thresholds, making these trace components disproportionately impactful.

Flavor

The flavor carries a concentrated concord grape note on inhale, followed by sweet berry jam and a floral echo. The exhale often finishes with black pepper and a mild balsamic edge, which many attribute to caryophyllene interacting with fruit-forward monoterpenes.

In combustion, 413 Concord Grape can leave a light resin ring and a lingering candy-grape sweetness on the palate. Vaporization at 345–370°F (174–188°C) preserves the fruit esters and floral top notes best, while higher temperatures emphasize spice and earth.

Mouthfeel is medium-bodied and slightly coating, with a soft, syrupy impression that pairs well with sparkling water or unsweetened tea. The aftertaste maintains a grape jelly character for several minutes, indicating robust terpene retention.

When cured well, the sweetness tastes natural and layered rather than artificial. Over-drying the flower below 55% RH tends to dull the fruit and highlight bitter phenolics, so storage practices directly influence the perceived flavor quality.

Cannabinoid Profile

Publicly posted certificates of analysis (COAs) for 413 Concord Grape are limited as of 2025, so specific values vary by grower and batch. Based on comparable grape-forward hybrids, total THC commonly ranges from 18% to 26% by dry weight, with rare outliers above 28% in dialed-in indoor rooms.

CBD is typically minimal, often under 1.0% total, placing this firmly in the THC-dominant category. Minor cannabinoids like CBGa frequently appear between 0.5% and 1.5%, with THCV and CBC usually under 0.5%.

Decarboxylation efficiency impacts realized potency during consumption, as THCa converts to delta-9-THC through heat. In smoking and vaping, effective conversion is high but not complete, and user experience also depends on terpene synergy and individual tolerance.

For concentrates derived from 413 Concord Grape, expect total cannabinoid content commonly in the 70–85% range, depending on extraction method and fractioning. Live resin and rosin often highlight the grape-forward terpenes, yielding a more saturated flavor compared to cured hydrocarbon extracts.

Terpene Profile

While exact terpene percentages vary by phenotype and cultivation, 413 Concord Grape typically expresses a top-three ensemble anchored by beta-caryophyllene, limonene, and myrcene. In well-grown indoor batches, these three often comprise 1.0–1.8% combined, within a total terpene content of 1.5–3.0%.

Secondary contributors commonly include linalool, ocimene, and humulene, adding floral brightness, tropical-lilac facets, and a subtle herbal dryness. Trace compounds and esters can accentuate the grape character, especially when supported by high monoterpene levels.

Caryophyllene, a sesquiterpene known to interact with the CB2 receptor, imparts the pepper-spice finish that keeps the profile structured. Limonene adds lift and perceived sweetness, while myrcene contributes to the jammy berry and smooth mouthfeel.

Environmental factors can shift terpene ratios by meaningful margins, with higher night/day temperature swings in late flower increasing floral and berry nuances. Careful drying at 60°F/60% RH for 10–14 days helps preserve monoterpenes, which volatilize more readily than sesquiterpenes.

Experiential Effects

User reports describe 413 Concord Grape as a balanced hybrid that leans relaxing without becoming sedative at moderate doses. The onset from inhalation is typically felt within 2–5 minutes, with a peak between 30 and 60 minutes and a 2–3 hour total arc.

Mentally, many experience a pleasant mood lift and a warm, nostalgic ease that pairs well with music, cooking, or an evening walk. Physically, there is a gentle body comfort and shoulder drop that makes it popular for post-work decompression.

At higher doses, the cultivar can become more tranquil and introspective, skewing toward couch-friendly activities and sleep preparation. The grape-candy flavor encourages repeat sips or draws, so pacing is key for users seeking functional clarity.

Compared with diesel or hazy sativa profiles, 413 Concord Grape is less stimulating and less likely to provoke racy thoughts. It is not typically the first choice for early morning productivity but shines in late afternoon and evening routines.

Dosing, Side Effects, and Safety

For new or infrequent consumers, start with 1–2 small inhalations and wait at least 10 minutes to assess effects. Experienced users often find 2–4 draws sufficient for a comfortable, relaxing plateau.

Common side effects include dry mouth, dry eyes, and, at higher doses, short-term memory haze or time dilation. A minority of users may experience transient tachycardia or lightheadedness if overconsumed, which usually resolves with hydration and rest.

Inhalation produces faster onset and higher peak concentration than oral routes, so adverse effects, if any, appear more quickly and fade faster. Avoid mixing with alcohol or sedative medications, and consult a clinician if you take prescriptions that may interact with THC.

Store safely and keep out of reach of children and pets. Use is not advised during pregnancy or breastfeeding, and operating vehicles or heavy machinery under the influence is unsafe and illegal in most jurisdictions.

Potential Medical Uses

THC-dominant flower like 413 Concord Grape may help with short-term relief of stress and mood tension, according to patient anecdotes and observational studies. The mood-elevating onset and body comfort can be useful for evening wind-down and sleep preparation.

The National Academies reported substantial evidence that cannabis is effective for chronic pain in adults, and THC-dominant chemovars are often chosen for neuropathic pain. Users commonly pair doses of this cultivar with non-pharmacologic modalities such as heat therapy or stretching for synergistic relief.

Cannabis has also demonstrated antiemetic effects for chemotherapy-induced nausea and vomiting, where THC plays a central role. While 413 Concord Grape is not a medical product per se, its THC-forward profile and gentle onset make it a candidate for appetite support and nausea modulation under clinical guidance.

Sleep quality may improve in some patients when using relaxing hybrids in the evening, with surveys indicating reduced sleep latency and night-time awakenings for select users. Individuals with anxiety disorders should approach cautiously, as THC can both relieve and exacerbate symptoms depending on dose and personal sensitivity.

Cultivation Guide: Environment and Timeline

413 Concord Grape thrives in a controlled indoor environment where temperature, humidity, and airflow can be tightly managed. Optimal daytime temperatures range from 75–80°F (24–27°C) in flower, with nights at 65–70°F (18–21°C) for resin and color development.

Relative humidity should track vapor pressure deficit (VPD) targets: 0.8–1.1 kPa in vegetative growth and 1.2–1.5 kPa in bloom. Practically, that equates to 60–65% RH in veg and 45–55% RH in late flower, depending on canopy temperature.

Photoperiod is standard: 18/6 for vegetative growth and 12/12 for flowering. Expect a flowering time of approximately 8–9 weeks (56–63 days) for most cuts, with some phenotypes finishing closer to 65 days to maximize terpene expression and color.

Canopy structure is compact-to-medium, with a flower stretch of roughly 1.5–2.0x over the first two weeks of bloom. This makes the cultivar compatible with both SCROG and SOG approaches, though SCROG or light LST often enhances light penetration and minimizes botrytis risk in dense colas.

CO2 supplementation to 900–1200 ppm during peak bloom can increase biomass and resin output by 10–20% when paired with adequate PPFD. Aim for 800–1000 µmol/m²/s PPFD in mid flower and up to 1100–1200 µmol/m²/s late flower, provided irrigation and nutrition are balanced.

Cultivation Guide: Training, Nutrition, and Irrigation

Topping once or twice during veg encourages a flatter canopy and more uniform colas. Low-stress training (LST) and early defoliation of large fan leaves improve airflow without shocking the plant.

A light-to-moderate defoliation at day 21 and day 42 of flower can reduce microclimates around the densest sites. Avoid extreme stripping in one session; staggered leaf removal limits stress and helps maintain steady transpiration.

In coco or hydro, aim for EC around 1.2–1.6 mS/cm in veg and 2.0–2.4 mS/cm in mid-to-late bloom, with runoff EC monitored to prevent salt buildup. In mineral-amended soil, feed lighter and let the microbial community handle nutrient exchange, supplementing with top-dressings around week 3 of flower.

Maintain pH at 5.8–6.2 in coco/hydro and 6.3–6.8 in soil. Calcium and magnesium support is important, especially under LED lighting; 100–150 ppm Ca and 40–60 ppm Mg generally stabilize growth and reduce blossom-end deficiencies.

Late in flower, taper nitrogen while maintaining potassium to support oil production and color. Many growers reduce overall EC by 25–40% during the final 10 days, allowing the plant to consume residual nutrients and improving burn quality and flavor retention.

Cultivation Guide: IPM, Mold Management, and Postharvest

Dense, purple-leaning flowers demand rigorous integrated pest management (IPM) to prevent powdery mildew and botrytis. Implement weekly scouting, canopy thinning, and oscillating fans to keep leaf surface moisture low.

Preventive foliar IPM should stop by early flower; from that point, rely on environmental control and biologicals like Bacillus subtilis in the root zone. Keep leaf wetness events to a minimum and water early in the light cycle to allow full dry-back before lights off.