Written by Ad OpsHistory and Breeding Background
My Blue #3 is a hybrid cannabis cultivar credited to Treeology Genetics, a breeder noted by enthusiasts for tightly curated phenotype selections. The name signals a classic phenohunt convention, where multiple numbered siblings are evaluated and the third selection is kept for its stand-out traits. This #3 cut leans into a fruit-forward profile with a modern resin load, a combination that appeals to both connoisseurs and solventless extract makers. Its heritage is indica and sativa, balancing sturdy structure with animated, mood-lifting effects.
While Treeology Genetics has not publicly released exhaustive parentage details, the 'Blue' moniker places My Blue #3 in a lineage associated with berry aromatics. Blue family expressions rose to prominence more than two decades ago, and they remain perennial favorites at dispensaries. In several legal markets, consumer flavor dashboards consistently show fruit-forward cultivars among top-selling flavor segments. Retail data snapshots across U.S. markets in 2022–2024 often cluster fruity-floral profiles into a 25–35 percent share of flower sales, reflecting a broad appetite for sweet aromatics.
My Blue #3 fits that demand cycle by combining jammy blueberry notes with a hybridized backbone designed for potency. In marketplace terms, the pairing of familiar, nostalgic aroma with contemporary cannabinoid density is a proven formula. Over the last five years, top-shelf flower has trended toward higher THC while preserving terpene totals above 2 percent by weight for perceived richness. My Blue #3 is widely discussed by growers for hitting a similar balance when dialed.
For the breeder, a numbered keeper like #3 denotes repeatability and quality control across successive runs. Phenotype-locked cuts reduce variability in canopy height, internode spacing, and flowering time, which matters in tightly scheduled rooms. This cultivar is frequently described as having predictable stretch, steady lateral branching, and a reliable finish window. Those traits help reduce crop risk while retaining the craft-level sensory profile that fruit-chasing consumers seek.
Genetic Lineage and Phenohunt Insights
The precise genetic recipe behind My Blue #3 has not been publicly disclosed by Treeology Genetics. However, the estery blueberry top notes and the cultivar's occasional cool-weather pigmentation suggest a Blue family influence somewhere in its background. Classic Blueberry-descended plants often express linalool, myrcene, and ocimene in proportions that register as sweet, pulpy fruit. In My Blue #3, that impression is reinforced by a creamy secondary tone that many growers liken to vanilla or fresh yogurt.
The importance of the #3 tag cannot be overstated, as it signals a keeper phenotype from a larger seed hunt. Breeders might germinate dozens to hundreds of seeds to find a single plant with the right chemotype, morphology, and stress tolerance. Selection cycles typically emphasize resin density, calyx-to-leaf ratio, environmental resilience, and terpene carry-through after cure. A #3 designation could indicate this phenotype performed best across those dimensions while holding a stable flowering window.
Structural cues from cultivation reports point to a medium-height hybrid with strong lateral arms and relatively uniform internode spacing. That architecture is consistent with an indica-sativa blend where the indica heritage confers density and the sativa side maintains buoyant top notes. When well-fed, the plant can stack golf-ball to spear-shaped colas that remain manageable under trellis. Many keepers in this category finish between day 56 and day 65, depending on environment and desired effect.
From a chemotaxonomy perspective, the strain likely aligns with the common THC-dominant Type I chemovar category. This is the majority class in modern retail flower, representing well over 80 percent of SKUs by volume in most licensed markets. With Type I genetics, breeders typically target total terpene content in the 1.5 to 3.5 percent range, enabling a robust nose at the jar. My Blue #3 appears to behave similarly, especially when grown under moderate vapor pressure deficit and with careful post-harvest handling.
Appearance and Bud Structure
My Blue #3 tends to produce compact, resin-glazed colas with a dense but not overly rigid structure. Calyxes stack into rounded clusters that form knuckled spears in the upper canopy. The calyx-to-leaf ratio is favorable, making trim straightforward without sacrificing sugar leaf frosting. Under strong light, trichomes can give the buds a glassy, sugared appearance that translates into sticky handling.
Coloration ranges from lime to forest green in warm rooms, with lavender or violet highlights emerging in cooler night cycles. Anthocyanin expression is most pronounced when night temperatures hover 2 to 4 Celsius degrees below daytime conditions for the final two weeks. When this cue is met, sugar leaves may display deep purples that accentuate orange to copper pistils. The contrast boosts bag appeal and photographs well under neutral white light.
Bud size varies by training method, but this cultivar responds well to even canopy management and can fill a 2x2 foot space per plant in a 4x4 foot tent. Apical sites cluster into larger tops while lower branches hold medium nuggets that retain density after dry. A well-cured batch retains its form without crumbling, indicating proper moisture content. Visual frosting is matched by tactile stickiness that suggests good solventless potential.
In solventless circles, returns for similar Blue-forward hybrids often fall into the mid tier, commonly reported in the 3 to 5 percent range for live rosin when harvest timing and washroom technique are optimized. While actual yields vary widely, the plant's resin heads tend to be well-formed and cohesive. Heads in the 73–159 micron range are typically the richest fraction in many rooms. These extraction-friendly traits add to the cultivar's appeal for home hash makers and craft processors.
Aroma and Bouquet
Open a jar of My Blue #3 and the first impression is ripe blueberry with a jammy, sugared tone. That top note often carries a cool, forested edge reminiscent of pine needles and juniper. Deeper inhales bring creamy, almost yogurt-like sweetness along with subtle vanilla. Beneath the fruit and cream, a faint earthy musk and peppery spice round out the nose.
These layers suggest a terpene ensemble led by myrcene and limonene with contributions from linalool, ocimene, and alpha-pinene. Myrcene can lend the ripe fruit tone and a soft, rounded character that reads as juicy. Limonene lifts the aroma into sparkling citrus territory, which can register as brightness in a blueberry frame. Linalool contributes floral-candy nuance that many describe as lavender or pastry.
The bouquet strengthens significantly when the flower warms from storage to room temperature. Volatile monoterpenes readily diffused at 20 to 22 Celsius will quickly fill a small room from an open jar. Growers often protect that intensity by drying cool and slow, as monoterpene losses accelerate with heat. A controlled dry often preserves more of the berry headspace that defines this cultivar.
During grind, a sticky-sweet burst signals high surface-area volatilization, revealing green herbal tones and faint resin tang. The pepper note that lingers at the base is typical of caryophyllene-rich chemovars. That subtle spice keeps the bouquet from skewing too candy-sweet, providing an adult complexity. The net result is a dessert-leaning profile that remains fresh and layered rather than one-dimensional.
Flavor and Mouthfeel
On inhale, My Blue #3 often presents a bright blueberry syrup character that quickly spreads across the palate. The vapor or smoke can feel smooth and slightly creamy, particularly from a well-cured sample. As the pull deepens, a green-pine snap adds crispness that keeps the sweetness in check. The balance of jam and forest makes it an engaging flavor for connoisseurs.
Exhale moves toward vanilla cream and soft florals, with a peppery pinch at the edges of the tongue. Retrohale through the nose accentuates the pastry and lavender elements, an effect many attribute to linalool resonance. When combusted gently in a clean glass, the finish leaves a lingering sugared-berry aftertaste. Vaporization highlights sweetness more clearly while tamping the earthy base note.
Temperature selection alters the emphasis of the flavor stack. Lower vaporizer settings around the mid-160s to low-180s Celsius preserve monoterpenes and keep the profile lively. Raising the temperature toward 195–205 Celsius increases density and spice but may mute some delicate fruit esters. Most users find a mid-range setting offers the best balance of sweetness and body.
Mouthfeel is medium-bodied and slightly coating, with minimal throat bite when properly cured. Over-dried flower will thin the mouthfeel and push pepper to the front, so a careful dry and cure is crucial. One or two pulls usually reveal the full flavor arc, while repeated draws coax out more of the herbal-pine undertones. The aftertaste can linger for several minutes, a hallmark of terpene-rich flower.
Cannabinoid Profile and Potency
My Blue #3 presents as a THC-dominant Type I chemovar, consistent with most contemporary top-shelf hybrids. While cannabinoid content varies by phenotype, cultivation, and post-harvest practices, batches in this class commonly register THC in the high teens to low 20s by percentage weight. Across major U.S. markets, median retail flower THC often clusters between 19 and 21 percent, establishing a reasonable baseline expectation. Exceptional runs can exceed that range, but potency should be understood as variable rather than guaranteed.
Minor cannabinoids typically appear in trace amounts for THC-dominant hybrids. CBD is often below 1 percent, while CBG can range from 0.2 to 1.0 percent depending on selection and harvest timing. CBN is usually negligible in fresh flower and increases with oxidation and age. THCV and CBC are likewise present in small quantities, though some phenotypes show slightly elevated CBC.
From a practical dosing standpoint, a 0.5 gram joint of 20 percent THC flower contains roughly 100 milligrams of delta-9 THC. Inhalation bioavailability varies widely, with peer-reviewed ranges often cited around 10 to 35 percent. That means 10 to 35 milligrams might reach systemic circulation from such a joint, depending on inhalation technique and burn efficiency. Onset typically occurs within minutes, peaks by 30 to 60 minutes, and tapers over 2 to 4 hours.
Potency perception is also shaped by terpene load and ratio, the so-called entourage effect. For many users, a 19 percent THC flower with 2.5 percent total terpenes can feel subjectively stronger than a 24 percent THC sample with 0.8 percent terpenes. My Blue #3 is generally favored for carrying a lively terp package that amplifies its high without heavy grogginess. Managing dose and context remains the best way to tailor the experience.
Terpene Profile and Aromatic Chemistry
Although exact lab figures for My Blue #3 are not publicly standardized, the aromatic signature suggests a terpene ensemble led by myrcene, limonene, and pinene, supported by linalool, caryophyllene, and ocimene. In THC-dominant, fruit-leaning hybrids, total terpene percentages commonly fall between 1.5 and 3.5 percent by dry weight when grown and cured properly. Within that total, a primary terpene often occupies 0.5 to 1.0 percent, while secondary contributors range from 0.1 to 0.6 percent. These ranges produce a nose intense enough to perfume a room from an open jar.
Myrcene contributes ripe fruit character and a soft, sedative edge at higher doses. Limonene lifts mood and brightens the flavor, adding a citrusy sparkle that keeps the berry note lively. Alpha-pinene adds crisp evergreen top notes and can subjectively support alertness. Linalool weaves floral, lavender-like sweetness and is frequently associated with calming effects.
Beta-caryophyllene introduces subtle pepper and woody depth while also engaging CB2 receptors, a unique trait among common cannabis terpenes. Humulene and ocimene may appear in smaller amounts, adding dry herbal, floral, or tropical nuances depending on phenotype. This balanced terpene matrix helps My Blue #3 feel both flavorful and nuanced rather than simplistic. The result is a dessert tone that avoids cloying sweetness.
Terpene preservation hinges on environmental control during and after harvest. Elevated temperatures and low humidity accelerate monoterpene evaporation, which can reduce perceived potency and aroma by 20 percent or more during an aggressive dry. Growers often target slow drying at around 15 to 18 Celsius and 58 to 62 percent relative humidity to protect volatile fractions. Curing in airtight containers with periodic burping stabilizes the profile over 2 to 4 weeks.
Experiential Effects and Onset
As a hybrid with both indica and sativa heritage, My Blue #3 tends to deliver a two-stage experience. The first 10 to 20 minutes often bring a buoyant uplift, improved mood, and sensory pop that pairs well with music or cuisine. As the session progresses, a warm body ease settles in, softening muscle tension without necessarily sidelining focus. Many users find this combines social usability with comfortable relaxation.
At modest doses, attention can feel present and gently expansive, aided by the bright terpene stack. Creative tasks, low-stakes gaming, and cooking are common pairings during the early phase. As the peak plateaus, the cultivar's myrcene and linalool elements may nudge the experience toward calm. In higher doses or later in the evening, the body component becomes more dominant.
The overall arc usually runs 2 to 4 hours depending on tolerance and route of administration. Inhalation initiates within minutes, reaching a peak by 30 to 60 minutes and tapering gradually. Users sensitive to THC may prefer smaller, spaced inhalations to maintain euphoria without couchlock. Hydration and a light snack can help moderate intensity if the peak feels too tall.
Common side effects mirror those of most THC-dominant hybrids. Dry mouth and red eyes are frequently reported, while transient dizziness or anxiety can occur with overconsumption. Setting and intention shape the experience as much as raw potency, so choosing a comfortable environment matters. For evening use, many report smooth transitions into restful sleep as the tail end unfolds.
Potential Medical Applications
My Blue #3's balanced hybrid profile and dessert-forward terpene stack may be of interest to individuals managing stress, mood fluctuations, and mild to moderate pain. The combination of THC with myrcene, limonene, and linalool is often sought for easing mental tension while preserving a functional headspace. Beta-caryophyllene's CB2 activity has been studied for its role in modulating inflammatory signaling, which may complement THC's analgesic potential. While individual responses vary, the chemotype aligns with common wellness goals.
Inhalation offers rapid onset, which can be beneficial for breakthrough symptoms like acute stress spikes or sudden neuropathic twinges. A couple of small puffs can be titrated upward in 5 to 10 minute increments, making it easier to find a comfortable effect level. Users seeking sleep support may prefer slightly later harvest expressions that lean amber in trichome maturity. Timing sessions 60 to 90 minutes before bedtime can help align the sedative tail with a sleep window.
For daytime symptom management, microdosing strategies with 1 to 2 inhalations spaced across several hours may provide relief without heavy sedation. Terpene-led improvements in perceived mood and muscle ease may support engagement in physical therapy or light exercise. Some patients note that fruit-forward hybrids are easier to dose consistently due to their clear sensory feedback. As always, coordination with a healthcare professional is advisable for those on concurrent medications.
The broader evidence base for cannabinoids in chronic pain and anxiety points to modest to moderate benefits for some individuals. Reviews of clinical literature commonly find that THC-containing products can reduce pain intensity scores and improve sleep quality in select populations. However, adverse events like dizziness and fatigue remain considerations. My Blue #3, like any THC-dominant flower, should be approached with careful titration and attention to personal tolerance.
Comprehensive Cultivation Guide
My Blue #3 is a predictable, photoperiod hybrid from Treeology Genetics that rewards dialed environments with high aromatics and glossy resin. Its indica and sativa heritage produces a medium stature with assertive lateral branching, making it friendly to trellised canopies. Expect a flower time around 56 to 65 days in controlled environments, with most keepers finishing near day 60 under optimal conditions. Outdoor harvests generally land in early to mid-October at mid-latitudes.
Environment targets are best framed by vapor pressure deficit, not only temperature and humidity. In vegetative growth, 0.9 to 1.2 kPa VPD maintains steady transpiration and vigorous leaf expansion. In early flower, 1.1 to 1.4 kPa supports stack without inviting pathogen pressure. Late flower benefits from 1.2 to 1.6 kPa, which helps prevent botrytis in dense colas while preserving terpene richness.
Daytime temperatures in the 24 to 28 Celsius range with nights 2 to 4 degrees cooler maintain metabolism without heat stress. For color expression, consider dropping nights to 16 to 18 Celsius in the final two weeks if the cultivar's genetics permit. Relative humidity should stay around 60 to 65 percent in late veg, 50 to 55 percent in early flower, and 45 to 50 percent in late flower. Airflow at the canopy should be gentle and constant, roughly 0.3 to 0.5 meters per second.
Lighting intensity drives yield and resin density. In flower, aim for 700 to 1000 micromoles per square meter per second PPFD across the canopy, increasing toward 900 to 1100 with supplemental CO2. If enriching CO2, maintain 800 to 1200 ppm for PPFD values above 900 to support photosynthesis without waste. Even distribution is critical; hot spots create uneven stretch and terpene burn-off.
Nutrition should be balanced and steady, with attention to calcium and magnesium for thicker calyx walls and leaf integrity. In coco or hydro, consider EC targets around 1.2 to 1.6 in veg, 1.8 to 2.2 in early to mid flower, and 2.0 to 2.4 in late flower, stepping down before flush. Maintain pH 5.8 to 6.2 in inert media and 6.2 to 6.8 in soil. Foliar Epsom salt at 0.5 to 1.0 grams per liter can resolve early magnesium striping if it appears, but avoid foliar sprays beyond week three of flower.
Irrigation frequency depends on substrate and container size. In coco, target 20 to 30 percent daily dryback, with one to three irrigations that reset media EC and minimize salt creep. In soil, water thoroughly and allow near-complete drybacks to promote oxygenation. Regardless of medium, consistent runoff of 10 to 20 percent keeps root zones clean and reduces nutrient lockout risk.
Training techniques that suit My Blue #3 include topping at the fourth or fifth node, low-stress training, and a light to moderate defoliation at day 21 of flower. A second, more conservative defoliation around day 42 can open airflow in dense canopies. Lollipopping the lower 20 to 30 percent of the plant focuses energy on top sites and improves trim quality. Under a net, this cultivar fills a square evenly, reducing popcorn formation.
Pest and disease management should anticipate the usual greenhouse culprits. Dense colas can be susceptible to botrytis if late-flower humidity spikes; preventive strategies include disciplined VPD, strong but gentle airflow, and leaf thinning. For mites and thrips, consider a biological IPM rotation with Amblyseius swirskii or Amblyseius californicus introduced during veg. Outdoor growers should scout for budworms and deploy Bacillus thuringiensis kurstaki on a 7 to 10 day cycle leading into flower.
Yields are influenced by veg duration, light intensity, nutrition, and cultivar expression. Indoors under 700 to 900 PPFD with a 4 to 5 week veg, expect 450 to 600 grams per square meter with dialed care. Outdoors in full sun with ample root volume, 600 to 900 grams per plant is attainable in favorable climates. Solventless extractors often prioritize head quality over raw yield and may harvest slightly earlier to protect monoterpenes.
Harvest timing should be guided by trichome inspection and desired effect. For a brighter, headier effect, pull when the majority of trichomes are cloudy with only a few amber heads. For a deeper body effect, allow 5 to 10 percent amber before harvest. Flush in the final 7 to 10 days is a grower preference; the more important factor is consistent drybacks and clean runoff leading into senescence.
Dry and cure protocols preserve the cultivar's signature blueberry-cream bouquet. A slow dry at approximately 15 to 18 Celsius and 58 to 62 percent relative humidity for 10 to 14 days is a reliable target. Aim for a final moisture content near 10 to 12 percent or a water activity of roughly 0.55 to 0.65. Cure in airtight containers for at least 2 to 4 weeks, burping periodically to equalize humidity and prevent terpene stratification.
Post-harvest handling has a measurable impact on aroma and perceived potency. Rapid drying at elevated temperatures can strip 20 to 40 percent of volatile monoterpenes in the first 48 hours, flattening the blueberry top note. Gentle handling during trim reduces trichome rupture and keeps heads intact. With care at every stage, My Blue #3 rewards the grower with standout bag appeal and a rich, crowd-pleasing nose.
For beginners, the cultivar's forgiving hybrid nature makes it a solid learning platform. It tolerates minor environmental swings without hermaphroditic tendencies when grown under stable light cycles. Light leaks should be avoided diligently, as with any photoperiod plant, to prevent stress. Once dialed, My Blue #3 performs with a consistency that reflects Treeology Genetics' phenotypic selection ethos.
