Written by Ad OpsIntroduction and Naming
MOB Maine's Own Blueberry, often shortened to MOB and sometimes sold as Mother of Berries, is a classic East Coast cultivar with a reputation for fast flowering and unmistakable blueberry character. The name signals both its regional roots in Maine and its berry-forward terpene profile that evokes blueberry jam and wildfield fruit.
In dispensaries, you may see MOB labeled as an indica-leaning strain with strong evening utility, and that description is generally accurate. This profile focuses specifically on MOB Maine's Own Blueberry, tying together its history, chemistry, sensory notes, effects, and cultivation best practices for an authoritative, data-driven overview.
History and Regional Roots
MOB’s story starts in the caregiver networks of northern New England, particularly Maine, where it circulated widely by the mid-2000s. Growers favored it for its reliable finish before the first frosts and its compact, resin-heavy buds that were easy to trim and cure in cooler, humid climates.
Anecdotes from long-time Maine cultivators place MOB in local medical programs as early as 2004–2006, where it gained traction among patients seeking nighttime relief. By the early 2010s it was a staple on East Coast menus, occasionally migrating to neighboring Massachusetts and beyond as clone-only cuts changed hands.
Genetic Lineage and Breeding Hypotheses
The exact lineage of MOB has never been conclusively documented, and it is commonly discussed as either a selected phenotype of DJ Short’s Blueberry or a Blueberry cross with an Afghan-leaning indica. The berry-heavy aroma and short, squat structure are consistent with a Blueberry core, while the rapid finish and broad leaves suggest Afghan heritage.
Working hypotheses from breeders point to an indica-dominant genotype, roughly in the 70–90% indica range by growth expression. Reports of phenotypic stability through successive clone generations imply a well-selected mother line rather than a recent seed hybrid, which aligns with the “clone-only” reputation MOB carried for many years in Maine.
Appearance and Morphology
MOB presents as a compact, broad-leafed plant with short internodal spacing and a naturally bushy profile. Indoors, untrained plants commonly reach 60–100 cm in height, while outdoor plants often stay under 150 cm in temperate New England conditions.
Buds are dense, conical to golf-ball shaped, and heavily encrusted with trichomes that can appear frosty white under light. Coloration ranges from forest green to deep plum, with cool nighttime temperatures frequently pulling purple hues in the final two weeks of flower.
Aroma: Blueberry-Forward with Earth and Pine
The first impression on a well-cured batch is ripe blueberry, often compared to blueberry preserves or syrup. Underneath the fruit top note, expect an earthy base with pine, faint skunk, and a sweet floral whisper.
When broken apart, many cuts reveal a hashy, resinous core suggesting Afghan influence, alongside bright citrus zest likely tied to limonene. In consumer sensory panels, blueberry and sweet notes are among the most consistently identified descriptors, reported by 70–80% of tasters in informal shop surveys.
Flavor: Jammy Sweetness and Hashy Depth
On the palate, MOB leans jammy with a sugared berry attack that’s followed by earthy spice and a soft pine finish. The smoke is often described as smooth when properly cured, with minimal throat bite and lingering sweetness.
Vaporization accentuates blueberry and floral tones at lower temperatures, especially around 175–185°C (347–365°F). At higher temps near 200°C (392°F), the flavor deepens into hash, chocolate, and incense notes, showcasing the caryophyllene and myrcene backbone.
Cannabinoid Profile and Potency
Aggregated certificate of analysis (COA) data from U.S. legal markets between 2018 and 2024 place MOB’s total THC typically between 18–24% by dry weight, with a common mean around 20–21%. CBD is usually low to trace, often below 0.5%, indicating a Type I chemotype dominated by THC.
Minor cannabinoids such as CBG frequently register in the 0.1–0.5% range, with CBC around 0.05–0.2% and THCV appearing as trace or not detected. Total cannabinoids (THC + THCa + minors) often land in the 20–26% range, depending on cultivation, harvest timing, and post-harvest handling.
Terpene Profile: Dominant Compounds and Typical Totals
MOB’s terpene profile is commonly myrcene-forward, with beta-myrcene often contributing 0.5–1.6% of dry weight in terpene-rich samples. Beta-caryophyllene and limonene are frequent secondary terpenes, generally in the 0.2–0.6% and 0.2–0.5% ranges, respectively.
Alpha-pinene and linalool typically register as supporting notes, often around 0.1–0.3% for pinene and 0.05–0.2% for linalool. Total terpene content of well-grown MOB generally falls between 1.5–3.0%, with standout batches occasionally testing above 3% when grown under high-light, optimal VPD, and carefully controlled post-harvest conditions.
Experiential Effects and Use Cases
Consumers consistently describe MOB as relaxing, body-heavy, and mood-lifting, reflecting its indica-leaning chemistry and myrcene-rich profile. Onset after inhalation is typically felt within 5–15 minutes, with peak effects around 30–45 minutes and a total duration of 2–3 hours.
Reports of sedation and sleepiness increase with dose, especially in the final hour as myrcene and caryophyllene-driven heaviness take the lead. In user feedback collected by retailers, 60–75% of respondents highlight stress reduction and muscle relaxation as primary benefits, with a sizable minority noting notable appetite stimulation.
Potential Medical Applications
While individual responses vary, MOB’s profile lines up with common medical use cases such as insomnia, generalized anxiety at night, and persistent pain. THC’s analgesic and anti-spasmodic properties, coupled with myrcene’s sedative reputation in cannabis folklore, make MOB a frequent evening choice among patients.
In patient-reported outcomes from clinics serving chronic pain populations, indica-leaning cultivars with 18–22% THC and >1.5% total terpenes often correlate with improved sleep latency and perceived pain reduction. MOB, matching those ranges, has been selected by patients seeking decreased nocturnal awakenings and enhanced comfort before bed.
Dosing Considerations and Side Effects
Given MOB’s typical potency, new consumers are advised to start low and titrate slowly, especially in forms with rapid onset like inhalation. Dry mouth and dry eyes are the most frequently reported side effects, with mild dizziness at higher doses reported by a smaller subset.
Daytime use can lead to unwanted sedation, particularly for individuals sensitive to myrcene-forward profiles. Consumers with anxiety prone to THC-induced racing thoughts may find lower doses or vaporization at lower temperatures more comfortable, as it can modulate intensity and preserve more uplifting flavor notes.
Cultivation Guide: Overview and Planning
MOB is well-suited to both indoor and outdoor cultivation in temperate climates, with a reputation for rapid flowering and compact growth. Flowering time typically ranges 49–56 days (7–8 weeks) indoors, making it a reliable choice for growers seeking quick turns.
Yields under optimized conditions commonly range from 350–500 g/m² indoors, with experienced growers sometimes exceeding 550 g/m² using high-PPFD LEDs and dense Sea of Green layouts. Outdoors in suitable climates, single plants can produce 400–800 g, finishing in late September to early October in northern latitudes like Maine.
Cultivation: Environment, Light, and Photoperiod
Indoors, MOB performs best at 24–26°C (75–79°F) daytime and 18–20°C (64–68°F) nighttime during late flower. Relative humidity targets of 60–65% in veg, 45–55% in early flower, and 40–45% in late flower help mitigate mold pressure.
Aim for VPD of 0.8–1.2 kPa in veg and 1.2–1.5 kPa in flower. For light, provide 400–600 PPFD in veg and 700–900 PPFD in flower, targeting a daily light integral (DLI) of ~30–40 mol/m²/day in veg and 40–60 mol/m²/day in flower for robust development.
Cultivation: Medium, Nutrition, and pH
MOB thrives in high-quality, well-aerated soil or coco blends, with a slightly acidic root-zone pH. In soil, maintain 6.2–6.6 pH, and in coco/hydro, 5.8–6.2 pH for optimal nutrient availability.
Feed EC ranges of 1.2–1.6 mS/cm in veg, 1.6–1.8 in early flower, and 1.8–2.0 at mid-flower are commonly successful. Like many Blueberry-leaning genetics, MOB can have a moderate magnesium appetite; 25–50 ppm Mg via Epsom salts or complete nutrient programs helps prevent interveinal chlorosis under high light.
Cultivation: Training, Canopy Management, and Plant Counts
Given its compact structure, MOB takes well to topping once at the 4th–5th node to encourage lateral branching. Low-stress training and light defoliation improve airflow and light penetration without stressing the plant’s indica-leaning morphology.
Sea of Green (SOG) with high plant counts per square meter (e.g., 9–16 plants/m² in 3–7 L containers) can maximize yield from the strain’s dense, uniform colas. Alternatively, a single topping with a light trellis achieves a tidy, even canopy in small tent grows or commercial tables.
Cultivation: Pest and Disease Management
Dense flowers and cooler night temperatures make MOB susceptible to botrytis and powdery mildew if humidity is not controlled. Regular canopy thinning, strong horizontal airflow, and keeping late-flower RH near 40–45% substantially reduce risk.
Integrated pest management (IPM) with weekly scouting, sticky cards, and preventative biologicals like Bacillus subtilis and Beauveria bassiana can reduce fungal and insect pressure. Beneficial predators such as Neoseiulus californicus for mites and Amblyseius swirskii for thrips are compatible with most grow-room programs when released early.
Cultivation: Outdoor and Greenhouse Strategy
Outdoors in Maine-like climates, MOB benefits from full sun exposure, well-draining loam amended with compost, and raised beds to avoid waterlogging during late-season rains. Plant after the last frost and aim for a finish by late September to early October to beat peak autumn humidity.
Greenhouse growers should prioritize dehumidification and horizontal airflow, especially during night-to-morning transitions when condensate forms. Target a greenhouse DLI of 35–45 mol/m²/day in late summer and supplement light if needed to maintain vegetative growth prior to flowering, depending on latitude and photoperiod.
Watering and Irrigation Practices
MOB appreciates consistent moisture with ample oxygen at the root zone. In coco or soilless blends, frequent irrigations to 10–20% runoff help maintain steady EC and prevent salt accumulation.
In soil, water thoroughly and then allow the top 2–3 cm to dry before the next irrigation to avoid root rot. Automated drip systems with pulse irrigation can stabilize substrate moisture and improve nutrient uptake in multi-table environments.
Flowering Dynamics and Ripening
MOB initiates flower quickly after a 12/12 photoperiod switch, with visible pistil formation in 5–7 days and pronounced stacking by week 3. Calyx development is vigorous, and resin production visibly accelerates in weeks 4–6.
Most cuts are ready around day 50–56, though some growers prefer an earlier harvest at day 49 for a brighter effect or later at day 58 for maximum body feel. Cooler nighttime temperatures (16–18°C / 60–64°F) in the final two weeks can enhance purple coloration without compromising terpene integrity if RH is kept in check.
Harvest, Drying, and Curing
For a balanced effect profile, many cultivators target harvest when trichomes are mostly cloudy with 5–10% amber. Those seeking heavier sedation may extend to 15–20% amber, though terpene volatility increases the longer plants stand ripe.
Dry at approximately 15–18°C (59–64°F) and 58–62% RH for 10–14 days to preserve aromatics; faster drying at higher temperatures can volatilize monoterpenes. Aim for a stable water activity of 0.58–0.62 before jar curing, then cure for at least 3–4 weeks, burping as needed in the first 10–14 days to off-gas moisture and preserve up to 20–30% more terpene content compared to fast-dry methods.
Post-Harvest Chemistry and Terpene Preservation
Monoterpenes like myrcene and limonene are among the most volatile compounds and can decline significantly with heat and airflow. Studies on post-harvest handling in aromatic crops suggest that uncontrolled drying can reduce certain monoterpenes by 20–40%, and cannabis is no exception.
By maintaining lower temperatures and moderate humidity, growers can mitigate losses and stabilize flavor. Vacuum-sealed storage in inert atmospheres at cool temperatures further slows oxidation and preserves both terpenes and cannabinoids over multi-month storage.
Expected Yields and Quality Metrics
In indoor conditions with optimized environmental control and high-efficiency LEDs, MOB typically returns 1.2–1.8 g/W or 350–500 g/m², depending on plant density and training. Commercial facilities using multi-tier racks and precise irrigation have reported exceedances above 550 g/m² when pushing PPFD above 900 with supplemental CO₂.
Outdoors, yields of 400–800 g per plant are common under full sun and fertile soil, with exceptional plants surpassing 1 kg in long-season locales. Quality benchmarks to watch include total terpenes above 2.0%, uniform trichome coverage, low leaf-to-calyx ratio, and moisture content stabilized near 11–12%.
Processing and Product Formats
MOB’s resin-heavy flowers make it a candidate for solventless processing, with bubble hash and rosin returns often in the 3–6% range from fresh-frozen input. Hydrocarbon extraction can push higher yields, frequently 15–20% from dried material, though input quality and trim style are decisive factors.
In concentrates, MOB’s blueberry and floral notes translate well, especially in live formats that capture monoterpenes. Edible products made from MOB often emphasize its relaxing qualities, and consumers report strong nighttime utility consistent with its inhaled effects.
Consumer Selection and Storage Tips
When selecting MOB at a dispensary, look for dense, slightly sticky buds with a pronounced berry aroma even through the jar. Visible trichome heads, minimal stem weight, and a faint pine-earth undertone are positive indicators of freshness and correct curing.
Store at 58–62% RH in airtight, opaque containers away from heat and light to preserve potency and terpenes. Under proper storage, THC degradation to CBN can be minimized, maintaining a stable potency curve over several months.
Comparisons to Related Blueberry Lines
Compared to classic DJ Short Blueberry, MOB tends to finish faster and stay shorter, traits that appeal to small-space growers and those in shorter outdoor seasons. Flavorwise, MOB is often sweeter and more jam-like, while some Blueberry cuts skew toward sharper berry and lavender notes.
Against Blueberry x Afghan hybrids, MOB typically offers denser bud structure and a clearer blueberry top note. Its quicker 7–8 week finish contrasts with 8–9 week schedules in many Blue crosses, reducing risk in humid climates and improving annual cycle efficiency.
Legal and Safety Considerations
Cultivation and use of cannabis remain subject to local laws and regulations; always verify and comply with your jurisdiction’s requirements. Medical use should be undertaken in consultation with a qualified clinician, particularly if you take medications or have underlying conditions.
When cultivating or processing, follow safety best practices including proper ventilation, electrical safety for lighting equipment, and protective gear for handling horticultural inputs. Solvent-based extraction should only be performed by licensed professionals in compliant facilities due to significant fire and health risks.
Why MOB Endures: Agronomy Meets Experience
MOB’s longevity on the market reflects a rare combination of fast flower, manageable morphology, and memorable flavor. For cultivators, it turns rooms quickly without sacrificing bag appeal, while for consumers, it delivers a reliable evening effect profile.
In a landscape crowded with dessert and gas cultivars, MOB’s blueberry heart remains distinctive. The consistency of reported THC ranges near 20% and total terpenes often above 2% ensures it still competes on shelves, especially in regions that value classic indica-leaning effects.
Key Takeaways at a Glance
MOB Maine’s Own Blueberry is an indica-leaning, blueberry-forward cultivar that typically tests at 18–24% THC with 1.5–3.0% total terpenes. It finishes in 7–8 weeks, produces dense, trichome-heavy buds, and thrives in temperate climates with disciplined humidity control.
Expect relaxing, sedative-leaning effects suitable for evening use, with common patient-reported benefits including improved sleep onset and muscle relaxation. For growers, dialed VPD, moderate EC, and careful post-harvest handling preserve the jammy sweetness that defines this Maine-born classic.
