Written by Ad OpsOrigins and Breeding History
Auto Sweet Soma is an autoflowering, indica-leaning cultivar developed by 00 Seeds Bank, a Spanish breeder known for compact, resinous plants and accessible, high-performing genetics. The name links it to the wider “Soma” lineage, a nod to Somango (also known as Soma #5), a mango-forward hybrid popularized by Soma Seeds in the early 2000s. 00 Seeds selectively integrated Cannabis ruderalis into an indica-dominant Somango-type background to fix the autoflowering trait while preserving the variety’s tropical bouquet and relaxing demeanor.
As with many modern autos, the objective was to compress the lifecycle without sacrificing yield or potency. Autoflowering lines began booming after 2009–2011 as breeders improved vigor and resin density through multiple backcrosses, boosting average THC by several percentage points compared with early autos. By the mid-2010s, autos commonly achieved 15–20% THC in optimized environments, a range supported by many Somango-adjacent hybrids that also show low CBD (0–1%).
A key influence here is the cultivation guidance carried forward from Somango’s playbook. Soma Seeds recommends indoor soil gardens with organic nutrients and a 9–10 week flowering window for the photoperiod parent, an approach that translates well to Auto Sweet Soma’s preferences. Growers often find that similar soil biology, moderate nutrient strength, and stable environments help the auto expression reach full aromatic intensity.
The result is a compact, manageable plant targeted to small spaces and rapid cycles that still satisfies connoisseur expectations for flavor and resin. 00 Seeds’ selection strategy appears to prioritize terpene retention, particularly the tropical-citrus side of Somango, while ensuring consistent autoflowering onset across phenotypes. This balance between speed, taste, and structure is what gives Auto Sweet Soma enduring appeal among home cultivators and boutique producers alike.
Genetic Lineage and Inheritance
Auto Sweet Soma’s genetic core can be summarized as ruderalis/indica, with the indica component drawing heavily from Somango-type stock. Somango, sometimes listed as Soma #5, is known for tropical fruit aromatics, a relaxing yet creative mental headspace, and medium-height plants with strong lateral branching. Crossing this profile with a robust ruderalis donor fixes day-length independence while reducing overall stature and shortening the total lifecycle.
Somango-derived lines frequently present myrcene-dominant terpene profiles, with supporting citrus notes from limonene and occasional floral-lavender edges from linalool. Reports for Somango feminized strains commonly list creative, focused, relaxed, and uplifted effects, suggesting a balanced indica hybrid that doesn’t overly sedate in low to moderate doses. These traits tend to carry into Auto Sweet Soma, though expression can shift slightly toward earth and spice in cooler grows or lower-intensity lighting.
From a chemotype perspective, autos of this lineage typically fall into a THC-dominant, low-CBD category. Comparable Somango hybrids routinely test in the mid-teens to low 20s for THC, while CBD remains around 0–1%. A related cross, Critical x Somango, is often described as high THC (15–20%) with low CBD, reinforcing that this genetic neighborhood can produce meaningful potency without heavy cannabidiol content.
Ruderalis contributes more than just autoflowering; it also confers resilience, tolerance to variable photoperiods, and often improved cold hardiness compared with pure indica lines. This can broaden the viable outdoor window at higher latitudes where frost pressure shortens photoperiod cycles. For indoor growers, the inheritance translates to predictable flowering onset (often around days 21–28 from sprout) and a consistent 70–85 day seed-to-harvest runway under an 18/6 or 20/4 light schedule.
Morphology and Visual Traits
Auto Sweet Soma generally matures into a compact or medium-short plant, with common heights in the 60–100 cm range indoors. Under strong LED intensity and ample root volume, some phenotypes can stretch toward 110–120 cm, especially if training increases horizontal light access. Short internodes, sturdy petioles, and a symmetrical bush-like form are typical, making canopy management straightforward in tents and closets.
Leaf morphology leans indica: broad leaflets initially, with slight narrowing during mid-flower as nitrogen demands taper and plants prioritize bloom. Calyx development tends to be dense and resinous, forming chunky, mango-shaped colas stacked along lateral branches. Sugar leaves often carry noticeable trichome coverage by week 5–6, visible as a frosty sheen that intensifies through ripening.
Color expression is usually lime to forest green, with occasional anthocyanin blush on petioles or sugar leaves in cooler night temperatures. In late flower, bracts can swell and exhibit subtle mottling as resin heads mature from clear to cloudy and eventually amber. Pistils start off a cream or light tangerine hue and shift toward deeper orange as harvest approaches.
Yield potential scales with root zone volume, light intensity, and early training. Indoors with efficient LEDs (700–900 µmol/m²/s PPFD), well-run autos of this size class commonly produce 350–500 g/m², while restrained setups may see 250–350 g/m². Outdoors in full sun, individual plants can deliver 50–150 g depending on latitude, season length, and soil fertility.
Aroma
The aromatic identity draws heavily from Somango’s tropical palette. Expect a first impression of ripe mango and citrus zest, often supported by sweet floral undertones. As buds break apart, deeper notes of earth and spice emerge, bringing balance and complexity to the nose.
Environmental factors significantly shape aromatic clarity. Warmer flowering temperatures (24–27°C day) and consistent humidity management can preserve volatile monoterpenes that drive the fruit-forward top notes. Conversely, overly high heat or irregular dry-down conditions can dull mango-citrus brightness and tilt the bouquet toward earth and hash.
Dominant terpenes likely include myrcene, limonene, and pinene, with potential supporting roles for linalool and caryophyllene. Myrcene often contributes the juicy mango and herbal facets, limonene brings citrus lift, and pinene adds an airy, pine-like top layer. Caryophyllene can introduce subtle pepper or clove in the background, especially evident after curing.
In sealed cure jars, the scent intensifies and stratifies. After 2–4 weeks of curing, many growers report a sharper delineation between tropical sweetness and grounding spice. Properly dried and cured buds frequently fill a room within seconds of opening, a hallmark of high terpene preservation.
Flavor
On the palate, Auto Sweet Soma tends to mirror its nose with ripe mango up front followed by citrus peel and light floral sweetness. The inhale is often bright and juicy, while the exhale introduces gentle spice, earth, and a faint woody echo. When vaporized at lower temperatures (175–190°C), the tropical and citrus aspects are most pronounced.
Combustion can accentuate the earthy-spicy base and mute some of the high-note fruit if the cure is rushed. A slow dry of 10–14 days and a 30–45 day cure commonly preserves monoterpenes and prevents chlorophyll from masking nuance. Users who prefer the mango-forward profile typically favor glass, convection-style vaporizers, or fresh headspace jars with 58–62% RH packs.
Flavor intensity correlates strongly with environmental stability in late flower. Overfeeding nitrogen can impose a viney, green bite that competes with the fruit. Maintaining balanced EC and avoiding excessive leafiness improve airflow, reduce terpene degradation, and yield a cleaner, brighter taste.
Across phenotypes, the flavor spectrum spans tropical sorbet to mango tea with a peppery finish. Some plants skew more citrus-tropical with pronounced limonene, while others lean herbal-earthy with a denser myrcene-caryophyllene footprint. This makes phenotype hunting worthwhile if you are seeking a specific mango/citrus-to-earth ratio.
Cannabinoid Profile and Potency
Auto Sweet Soma occupies a THC-dominant chemotype category consistent with indica-leaning autos derived from Somango lines. While exact values vary by phenotype and cultivation conditions, comparable Somango hybrids commonly register THC in the 15–20% band, with CBD typically low at approximately 0–1%. A related Somango cross, Critical x Somango, is frequently described within that same THC range, supporting the expectation for meaningful potency.
Modern autos can exceed 20% THC under ideal conditions, especially with high-intensity lighting, optimized nutrition, and precise environmental control. However, averages in real-world home grows tend to cluster in the mid-teens to high teens for this genetic class. Variability of ±3–5 percentage points is not uncommon between runs due to environment, phenotype selection, and harvest timing.
Minor cannabinoids such as CBG and CBC may appear in trace amounts, often in the 0.1–0.5% combined range in similar indica-dominant autos, though this can be highly lab-dependent. If low CBD is a concern, extracting or blending with CBD-rich material is a practical way to modulate the THC-forward effect. For medical users requiring a more balanced ratio, pairing with a 1:1 CBD product can temper intensity without sacrificing the mango-forward terpene experience.
For consumers, dosage titration remains the safest way to navigate potency variance. Starting with 1–2 inhalations and waiting 10–15 minutes can prevent overshooting optimal effects, particularly for THC-sensitive individuals. Edible or tincture preparations should begin at 1–2.5 mg THC and scale upward slowly, monitoring for anxiety or sedation.
Terpene Profile and Functional Ecology
Terpene expression in Auto Sweet Soma is expected to be led by myrcene, followed by limonene and pinene, with secondary support from linalool and beta-caryophyllene. In Somango-type plants, myrcene frequently appears as the dominant terpene, and anecdotal lab data from similar indica-leaning mango cultivars often shows myrcene concentrations in the 0.3–0.8% range by weight. Limonene contributions between 0.2–0.6% are common for citrus-forward profiles, while pinene (alpha and beta combined) can add another 0.1–0.3% in well-preserved samples.
Functionally, myrcene is associated with herbal, mango-like notes and may contribute to the perception of body relaxation. Limonene often correlates with mood elevation and a “bright” top note, whereas pinene can impart mental clarity or alertness in light doses. Caryophyllene is unique among terpenes because it can bind to CB1/CB2 receptors as a dietary cannabinoid, potentially adding a peppery, grounding effect.
Ecologically, terpenes serve the plant as chemical signals—attracting beneficial organisms while deterring pests, as summarized in educational resources like Leafly’s terpene overview. In cultivation, preserving these volatiles requires careful handling of heat, light, and airflow in late flower and during drying. Excessive light intensity past peak ripeness can oxidize monoterpenes and flatten the profile, underscoring the importance of timely harvest and proper post-harvest technique.
Given phenotype diversity, growers may see one of two dominant aromatic arcs: a myrcene-limonene axis that reads as mango-citrus with energizing top notes, or a myrcene-caryophyllene axis that leans herbal-earthy with a soothing finish. Selecting mother seeds from the most aromatic plants and maintaining steady VPD in bloom are practical ways to keep terpene output at the high end of the cultivar’s potential.
Experiential Effects
User reports for Somango-family cultivars often include a creative, focused lift layered over a relaxed physical base, and Auto Sweet Soma typically follows that arc. The onset is generally gentle within the first few minutes for inhalation, building to a clear, uplifted headspace and loosening bodily tension without immediate couchlock. Many describe it as “day-friendly” at low to moderate doses, though higher doses can become sedating as myrcene and THC synergize.
In practical terms, early-session effects may include improved mood, light euphoria, and a reduction in stress perception. Music, conversation, and creative tasks can feel more immersive, aligning with Somango feminized descriptors such as creative, focused, relaxed, and uplifted. As the session deepens, the body feel tends to warm and soften, easing the transition to a calm, reflective state.
Duration varies by route of administration. Inhalation typically delivers a 2–3 hour arc, with the peak around 45–90 minutes, while edibles extend the experience to 4–6 hours or more. Individual tolerance, recent food intake, and set-and-setting all play meaningful roles in shaping outcomes.
A minority of users may experience transient dry mouth, red eyes, or light orthostatic dizziness, common with THC-forward indica hybrids. Anxiety-prone individuals should start low and evaluate the first 15–20 minutes before redosing. Pairing with hydration, a small snack, and a comfortable environment helps the strain reveal its balanced side.
Potential Medical Uses
Auto Sweet Soma’s profile suggests potential utility for stress modulation and mood support, consistent with the creative and uplifted descriptors often applied to Somango. The indica-leaning body relaxation may also offer subjective relief for muscle tension or generalized restlessness. In patient-led contexts, these effects can translate to improved comfort during evening wind-down routines or low-intensity daytime activities at lighter doses.
Given the likely myrcene-forward chemotype and modest CBD presence, analgesic benefits may be perceived by some users, particularly for mild to moderate discomfort. However, those requiring substantial pain control or anti-inflammatory effects may benefit from blending with CBD-dominant products to increase the breadth of action. CBD additions in the 5–10 mg range alongside THC can reduce the odds of anxiety and modulate intensity without erasing euphoria.
Sleep support is a common report at higher doses of indica-leaning autos, especially when consumed 60–90 minutes before bedtime. Myrcene-rich profiles are frequently associated anecdotally with easier sleep onset, though clinical evidence remains mixed and highly individual. Patients with insomnia should begin with very small doses to avoid next-day grogginess.
For appetite stimulation, THC-dominant strains can be beneficial, particularly for users experiencing poor appetite due to stress. Because CBD is likely low, individuals sensitive to THC-induced anxiety should approach cautiously or co-administer CBD. As always, medical outcomes vary widely—consultation with a clinician familiar with cannabis is recommended for condition-specific guidance and medication interactions.
Comprehensive Cultivation Guide
Auto Sweet Soma thrives in controlled indoor environments but performs reliably outdoors in warm, temperate seasons. Indoors, plan a seed-to-harvest window of roughly 70–85 days, contingent on phenotype, pot size, and environmental precision. Because it is autoflowering, maintain 18/6 or 20/4 lighting from sprout to finish; the added daily light integral (DLI) supports compact, resinous growth.
Medium and containers depend on your style. In living soil, 11–18 liters (3–5 gallons) is a good balance between size and speed; in coco/perlite or soilless, 9–12 liters (2–3 gallons) paired with frequent fertigation can drive rapid growth. Soma Seeds historically recommends soil and organic nutrients for Somango, and similar practices suit Auto Sweet Soma, preserving terpene nuance while simplifying feeding.
Environmental targets are straightforward. Aim for 24–28°C day and 18–22°C night in early to mid-veg, tapering to 22–26°C in late flower to protect terpenes. Maintain VPD in the 0.8–1.2 kPa range, trending toward 1.0–1.2 kPa in mid-to-late bloom; this typically maps to 45–55% RH in flower at 24–26°C.
Light intensity should scale with development. Seedlings enjoy 200–350 µmol/m²/s PPFD, rising to 500–700 µmol/m²/s in early veg and 700–900 µmol/m²/s in bloom. Many growers report best results when maintaining a DLI around 35–45 mol/m²/day in flower, which balances yield potential with terpene preservation.
Nutrition should remain moderate to avoid overshooting autos’ smaller root masses. In coco, target an EC of ~1.2–1.4 in early veg, peaking at 1.6–1.8 in mid-flower before tapering; in soil, feed by plant response, erring on the lighter side. Keep pH at 5.8–6.2 for coco and 6.2–6.8 for soil to optimize nutrient uptake and prevent lockouts.
The lifecycle typically follows this cadence: days 0–7 germination and seedling establishment, days 8–21 vegetative expansion, days 22–35 stretch and early flower initiation, days 36–63 bulk flower formation, and days 64–85 ripening. Many autos begin visible pistil development around day 21–28, regardless of photoperiod changes. Harvest timing should be guided by trichome maturity rather than calendar, watching for the desired ratio of cloudy to amber heads.
Training should be gentle. Low-stress training (LST) beginning around day 14–21 can open the canopy without stunting; avoid topping after day 20 to prevent yield loss. Strategic defoliation is best done in small batches at weeks 4 and 6, focusing on leaves that shade top sites while maintaining at least 60–70% of the total leaf mass for energy capture.
Water management is central to auto performance. Aim for full wet-to-dry cycles in soil, allowing 20–30% of the pot’s water mass to leave before rewatering; in coco, frequent fertigation with 10–20% runoff stabilizes EC and root-zone pH. Ensure robust aeration—adding 20–30% perlite to soil mixes or using air-pruning fabric pots can enhance root vigor.
Pest and disease prevention begins with cleanliness and airflow. Use sticky cards, periodic leaf inspections, and HEPA intake filtering to reduce infestations. Outdoors, consider integrated pest management such as Bacillus thuringiensis (BT) for caterpillars and predatory mites for spider mites; neem or essential-oil sprays should be limited to early veg to avoid terpene contamination, and never applied in bloom.
Yields correlate with early momentum. Fast, healthy growth in the first 25–30 days often predicts final output; plants that stall early rarely catch up. Under efficient LED lighting and good cultivation, indoor yields of 350–500 g/m² are attainable, while 250–350 g/m² is common in modest setups; outdoors, 50–150 g per plant is a reasonable planning range depending on season length and sun exposure.
Outdoors, time your sowing to avoid cold nights and ensure at least 10–12 weeks of frost-free conditions. Autos can be staggered every 2–3 weeks for continuous harvests across summer. Containerized plants allow easy relocation to chase the sun and avoid heavy rains during late flower, preserving density and reducing botrytis risk.
For terpene retention, manage late-flower conditions carefully. Reduce temperatures slightly in the final two weeks and avoid sustained PPFD beyond the plant’s capacity, which can volatilize monoterpenes. A light nutrient taper and mild drought-stress technique in the last 3–5 days can improve resin intensity, but avoid severe stress that jeopardizes yield or induces foxtailing.
Harvest, Drying, Curing, and Storage
Optimal harvest timing balances potency, head feel, and flavor preservation. Many growers target trichomes that are ~5–15% amber, 75–90% cloudy, and few clear, which often aligns with peak mango-citrus expression and a relaxed but not overly narcotic body effect. Waiting too long can push the experience toward heavier sedation as more trichomes oxidize.
For drying, aim for the classic 60/60 protocol—about 60°F (15.5–16.5°C) and 60% RH—for 10–14 days, depending on bud density and local conditions. Gentle airflow, not directly on the buds, prevents microclimates and preserves delicate monoterpenes. Stems should bend and snap lightly, not fully crisp, before moving to jars.
Curing is best done in glass jars filled to ~60–70% of their volume to maintain a stable microclimate. Burp jars daily for 5–10 minutes during the first 7–10 days, then weekly for the next month; include 58–62% humidity packs to stabilize water activity around 0.58–0.65. Over 4–8 weeks, the flavor typically clarifies, with mango and citrus sweetening while earthy-spicy undertones round off.
For long-term storage, keep jars in a cool, dark place to limit terpene oxidation and cannabinoid degradation. Avoid frequent light exposure and temperature swings, which can reduce total terpene content over time. Properly dried and cured Auto Sweet Soma can maintain top-tier aroma and potency for 6–12 months, with gradual declines thereafter when stored at stable 58–62% RH.
If you plan extracts or rosin, harvesting at optimal trichome maturity and freezing immediately can capture peak volatile content. Fresh-frozen material pressed into live rosin often highlights the tropical top notes and minimizes oxidation byproducts. Regardless of method, gentle handling and clean equipment are crucial for translating the strain’s mango-forward character into concentrates.
