Auto Pyramid II by Pyramid Seeds: A Comprehensive Strain Guide

Origins and Breeding History

Auto Pyramid II is an autoflowering cannabis cultivar developed by Pyramid Seeds, a Spanish breeder known for stabilizing high-yielding autos for European markets. The II in the name signals an iterative selection that refines an earlier auto release, emphasizing uniformity, vigor, and improved resin output. Pyramid Seeds has consistently blended ruderalis vigor with balanced indica and sativa influences to produce day-length independent plants. The result is an auto designed to finish reliably across diverse climates while maintaining a modern potency ceiling.

The breeder does not publicly disclose the precise photoperiod parents, a common industry practice intended to protect intellectual property. Based on Pyramid Seeds catalog patterns, Auto Pyramid II likely descends from an in-house indica-leaning hybrid crossed to a stabilized ruderalis donor. This kind of architecture is typical in well-bred autos where the ruderalis component is kept to roughly 20 to 30 percent to preserve potency and terpene richness. The remaining 70 to 80 percent usually represents the indica and sativa share, aimed at flavor and structure.

Iteration projects like II lines generally tighten phenotypic spread by focusing on plant height, internodal regularity, and finishing window. Grower feedback often drives these refinements, such as demands for better lateral branching or improved mold resistance in dense buds. Pyramid Seeds has a reputation for improving resin density without sacrificing cycle speed, a delicate tradeoff in auto breeding. Auto Pyramid II presents as a culmination of such feedback loops from testers and commercial cultivators.

A key historical driver for Auto Pyramid II has been the European shift toward short-cycle outdoor harvests. Northern growers often target 70 to 85 days from seed to harvest to avoid late-season rains. Pyramid Seeds prioritizes this window to reduce the probability of botrytis during ripening. The Auto Pyramid II line thus positions itself as fast-maturing yet robust enough for mid-latitude outdoor runs.

Genetic Lineage and Architecture

Auto Pyramid II is explicitly described as a ruderalis, indica, and sativa composite, reflecting a multi-branch lineage. The ruderalis portion confers autoflowering and bolt timing unaffected by photoperiod, typically expressing preflowers by day 18 to 24 from emergence. The indica component likely drives compact cola formation, dense calyx stacking, and chunkier trichome heads. The sativa influence can be seen in lateral branching, aroma complexity, and a more uplifting top note to the effect profile.

In practical terms, most phenotypes settle into a medium height class with an indoor average of 60 to 110 cm. Outdoor plants in 15 to 30 liter containers commonly reach 80 to 130 cm given adequate DLI and root volume. The stretch ratio from preflower to full flower tends to range 1.5x to 2.2x, which is manageable in tents under 2 meters. This architectural predictability is valuable for spacing and light mapping in small rooms.

Node spacing is moderately short, typically 3 to 6 cm under high light, which promotes continuous cola formation along branches. The internodal gaps widen under suboptimal PPFD or excess nitrogen, which can reduce final density by 10 to 20 percent. Support stakes or soft ties are advised in the last three weeks of bloom due to resin-heavy cola weight. The central spear often carries 25 to 40 percent of total plant yield in well-run autos.

The II revision appears focused on balancing apical dominance with lateral productivity. Many growers report symmetrical branching when early low-stress training is applied before day 21. This architecture allows a flat canopy for efficient PPFD distribution from LED fixtures. It also enhances airflow, reducing microclimate humidity that can predispose plants to botrytis.

Morphology and Bag Appeal (Appearance)

Auto Pyramid II typically presents with medium-width leaflets, indicating a hybrid expression that leans subtly indica in late flower. Fan leaves often darken with maturity, while sugar leaves can show anthocyanin pigmentation under cooler nights. In controlled rooms at 18 to 20 Celsius night temperatures, 25 to 40 percent of plants may show faint purples in the bract tips. Calyxes stack neatly, often producing golf-ball to soda-can calyx clusters along the main stem.

Trichome coverage is a standout feature in the II iteration compared to older autos. Macro inspection reveals a thick carpet of capitate-stalked trichomes with a high ratio of cloudy heads at maturity. Resin glands are moderately large, indicating a robust terpenoid and cannabinoid payload. When handled, buds leave a sticky residue suggesting above-average resin density for the cycle time.

Mature flowers are generally lime to forest green with amber pistils by late harvest. Buds dry down tight, reducing shrink loss ratio and often retaining 28 to 32 percent of fresh weight after dry in ideal conditions. Bract-to-leaf ratio is favorable, with minimal crow’s feet and limited larf if canopy is well lit. The trimmed bag appeal is market-ready, with a glossy frost sheen that holds through cure.

Under LED spectra with a red-rich bloom channel, the cola shape is notably cylindrical rather than foxtailed. Foxtailing remains minimal unless the canopy is overdriven above 1100 µmol per square meter per second without added CO2. Flower clusters are uniform, which simplifies bucking and machine trimming for commercial runs. For hand-trimmed craft batches, the aesthetic is easily positioned as premium mid to top shelf.

Aroma and Bouquet

Auto Pyramid II opens with a layered scent that combines sweet herbal tones and a light citrus zest. The top notes often present as lemon-lime or green apple peel when the jar is first cracked. A mid-palate of earth and fresh pine arrives after the initial sweetness fades. The base carries a subtle spice, likely caryophyllene-driven, with a faint incense finish.

Freshly ground flowers expand the bouquet toward sweet dough and mild berry in some phenotypes. This evolution is consistent with terpene release patterns where monoterpenes volatilize rapidly. The headspace inside a grinder will read notably higher in limonene and pinene, perceived as bright and clean. Within 60 seconds, a warmer, peppered aroma settles in, indicating caryophyllene and humulene dominance.

Dry pulls from a joint typically echo green mango, tea leaf, and light caramel. When combusted, the smoke is smooth with minimal throat scratch if cured at 58 to 62 percent relative humidity. Vaporization at 180 to 190 Celsius highlights the floral and citrus aspects first. Increasing to 200 Celsius shifts toward woodier, spicier tones as sesquiterpenes become more prominent.

Storage stability is solid over a 60 to 90 day cure, with total aroma loss estimated at 10 to 20 percent under 60 Fahrenheit and 60 percent RH conditions. Terpene retention improves significantly when buds are kept in UV-opaque containers. The cultivar’s resin density helps protect volatile fractions from rapid oxidation. Overall, the bouquet remains expressive if environmental swings are minimized.

Flavor and Aftertaste

On the palate, Auto Pyramid II balances sweet and herbaceous elements with a clean exhale. The first two draws often deliver citrus peel and light candy backed by green tea bitterness. Mid-session, a pine-resin character emerges that pairs well with the lingering sweetness. The aftertaste leans spicy-woody with a gentle tongue-tingle suggesting caryophyllene presence.

In water pipes, flavor clarity is high during the first three hits, then degrades gradually as residues build. Dry herb vaporizers preserve the nuance best, especially at temperatures under 195 Celsius. Connoisseurs report that the cultivar holds flavor across a full session better than average autos. This is likely due to the integrated resin head size and terpene composition skewing toward more stable sesquiterpenes.

Pairings that highlight the profile include sparkling water with lemon, mild cheeses, and nutty chocolate. The citrus and pine contrasts complement lighter fare without overwhelming. For the end of a cure cycle, the profile can deepen toward caramelized sugar and cedar. That shift often coincides with a small increase in perceived smoothness as chlorophyll degrades.

Cannabinoid Profile and Potency

Pyramid Seeds markets many autos in a potency window comparable to mid-to-top photoperiod hybrids, and Auto Pyramid II follows that trajectory. While publicly posted, strain-specific lab certificates for this cultivar are scarce, grower reports commonly cite THC in the 16 to 21 percent range. CBD is typically sub-1 percent, often 0.1 to 0.6 percent, placing the chemotype firmly in a THC-dominant class. Total cannabinoids can reach 18 to 23 percent under optimized conditions.

In decarboxylation terms, most raw flower THCA converts to THC at a mass conversion factor of 0.877. Thus, a flower with 20 percent THCA will theoretically yield about 17.5 percent THC post-decarb. Real-world decarb processes introduce small losses, frequently 5 to 10 percent due to volatilization. Controlled ovens and short time-at-temp protocols help contain these losses.

Autos historically lagged behind photoperiod strains in potency, but breeding gains have narrowed the gap to within 2 to 5 percentage points. Under high PPFD and robust nutrition, Auto Pyramid II can present as strong as many photoperiods of similar aroma class. Elevated CO2 to 800 to 1000 ppm combined with 900 to 1100 µmol PPFD often increases biomass 10 to 20 percent. Cannabinoid concentration correlates more with light intensity and plant health than with CO2 alone.

Minor cannabinoids such as CBG and CBC typically register at 0.1 to 0.5 percent each. Trace THCV may be present but rarely exceeds 0.2 percent in autos of this lineage. These minors can subtly influence perceived effect despite low absolute percentages. Their presence also contributes to entourage effects that modulate the overall experience.

Terpene Profile and Minor Volatiles

Auto Pyramid II commonly expresses a terpene suite anchored by myrcene, beta-caryophyllene, and limonene. Growers often report total terpene content in the 1.2 to 2.2 percent by weight range when cured correctly. Myrcene contributes herbal and green mango notes while acting as a soft base. Beta-caryophyllene adds pepper and spice, and uniquely interacts with CB2 receptors as a dietary cannabinoid.

Limonene typically threads through as lemon-lime and a perceived uplift in the headspace. Alpha-pinene and beta-pinene add pine and subtle eucalyptus, supporting a focused top note. Humulene can appear as woody and bitter hop, helping dry out the finish. Linalool is occasionally detected at low levels, bringing faint lavender when present.

In lab terms, monoterpenes such as myrcene and limonene are more volatile and decline faster during cure. Sesquiterpenes such as caryophyllene and humulene are heavier and stabilize the scent longer. Proper slow dry at 60 Fahrenheit and 60 percent RH for 10 to 14 days preserves more monoterpenes. Burping protocols that limit oxygen spikes further protect delicate fractions.

A reasonable working range for individual terpenes includes myrcene at 0.3 to 0.9 percent, caryophyllene at 0.2 to 0.6 percent, and limonene at 0.2 to 0.5 percent by weight. Pinene family terpenes are commonly 0.05 to 0.2 percent combined. Total volatile sulfur compounds are minimal, and the cultivar does not present as a heavy gas profile. Instead, it leans toward sweet-citrus-pine with a gentle spice foundation.

Experiential Effects and Use Scenarios

The effect profile of Auto Pyramid II is balanced, starting with a clear cerebral lift and settling into a calm body ease. Many users describe an initial 15 to 30 minute window of enhanced focus and mild euphoria. As the session progresses, muscle tension often eases without heavy couchlock. The arc is suitable for late afternoon into evening use for most tolerance levels.

Subjective onset is medium-fast, typically noticeable within 2 to 5 minutes when inhaled. Peak intensity tends to arrive around 30 to 45 minutes and fade linearly over 1.5 to 2.5 hours. The cultivar’s hybrid nature allows functional conversation and light tasks during the first half. A mellow taper favors relaxation and winding down in the second half.

Potential side effects mirror other THC-dominant hybrids, including dry mouth and dry eyes. A minority of users may experience transient anxiety at higher doses, especially if sensitive to limonene-forward profiles. Moderating intake or pairing with calming environments often mitigates such responses. Adequate hydration and lower-temperature vaporization can also smooth the experience.

Ideal scenarios include creative planning, cooking, medium-length walks, or listening to music. Social settings benefit from the friendly mood lift without overwhelming sedation in the early phase. For bedtime use, some may prefer a slightly later session to align the body relaxation phase with lights out. Overall, the cultivar is versatile across several daily windows depending on dose.

Potential Therapeutic Applications

While individual responses vary, the balanced hybrid effect suggests potential for stress modulation. The mood-elevating onset may assist with situational anxiety and daily stress when used in low to moderate amounts. Body relaxation and perceived muscle ease can be supportive after physical activity. Typical sessions last 90 to 150 minutes, which fits many evening routines.

Users seeking assistance with mild pain may appreciate the caryophyllene and myrcene combination. Caryophyllene’s CB2 interaction is discussed in literature for potential anti-inflammatory properties. Myrcene has been associated anecdotally with body relaxation and sedation at higher doses. Auto Pyramid II’s terpene balance could align with such goals when titrated carefully.

Sleep support is mixed and dose dependent. Some users report easier sleep onset when dosing 60 to 90 minutes before bed to sync the relaxing tail end with bedtime. Others prefer pairing with a more linalool-forward cultivar for heavier sedation. The best approach is to start low and adjust timing and temperature in a vaporizer to shape the arc.

For appetite stimulation, THC-dominant chemovars commonly increase hunger signals, especially in the mid-phase of the session. Those managing appetite may find this useful during recovery or high-exertion periods. People with sensitivity to THC should approach with caution and consider CBD pairing. As always, medical decisions should be guided by a clinician familiar with cannabinoid therapeutics.

Comprehensive Cultivation Guide

Auto Pyramid II is engineered for speed and reliability, finishing in approximately 70 to 85 days from sprout in most environments. Germination rates of quality seeds typically exceed 90 percent when using a 24 to 26 Celsius propagation zone. Paper towel or plug methods both work, but planted directly into the final container minimizes transplant shock in autos. Most growers see cotyledons within 48 to 72 hours under gentle light.

Container size influences plant size and yield strongly in autoflowers. A 7 to 11 liter container supports 45 to 90 grams per plant indoors, while 15 to 25 liter containers can reach 80 to 150 grams outdoors. For density, a sea-of-green layout at 9 to 12 plants per square meter can yield 350 to 550 grams per square meter. Single-plant training in larger pots under powerful fixtures can exceed these figures if dialed in.

Media choice is flexible, with light, aerated soil and buffered coco coir being the most popular. Soil pH targets 6.2 to 6.6 with a runoff EC of 1.2 to 1.8 mS per centimeter, while coco prefers pH 5.7 to 6.0 and EC 1.3 to 2.0. Autos generally respond best to moderate feed strength, with a bias toward calcium and magnesium when using RO water. Overfeeding nitrogen past week three often redu