Meet Yumbolt Auto, a compact, resin-rich indica with Humboldt County roots and a fast 8–10-week life cycle. Expect dense, trichome-coated buds, a sweet berry-and-earth profile, and a deeply calming finish. This easygoing autoflower brings classic character to growers seeking a straightforward run.

Our breeders created Yumbolt Auto by crossing Yumbolt with Lowryder 2. The result is an 80% indica, 20% sativa variety that pairs Yumbolt’s California heritage with autoflowering speed and convenience.

Open a jar to sweet berries, rich earth, and a fresh hint of pine. The smoke is smooth and full-bodied, with a mellow sweetness that lingers alongside its grounded, earthy notes.

With THC levels listed at 12–24%, Yumbolt Auto delivers a soothing, body-led experience. The mood settles into calm and relaxation, then leans toward sleepiness. It’s a natural fit for quiet evenings and winding down after a demanding day.

Myrcene anchors the profile with earthy sweetness and a soft berry note. Linalool adds a gentle floral accent, while alpha-pinene and camphene bring fresh, woody pine. Together, these terpenes complement the strain’s mellow evening character. Customers choose it for relaxation and may seek it out for concerns such as insomnia, pain, or arthritis.

These feminized autoflowering seeds flower automatically without a change in light schedule. Yumbolt Auto completes its life cycle in about 8–10 weeks from germination and suits indoor or outdoor gardens. Every Grassfarmer seed comes with our germination guarantee.

Early growth rewards a steady, attentive approach. Use a quality, well-draining medium and provide consistent light, airflow, and appropriate nutrition as plants develop. Its beginner-friendly nature and compact autoflower format make it a practical choice for growers working with limited space or time.

Yumbolt Auto grows with a sturdy central stem and supporting branches, reaching around 4.59 feet (1.4 m). Give it a temperate environment, plenty of sunshine outdoors, and balanced growing conditions indoors. Monitor moisture and humidity as the plant moves through its stages.

Expect a quick finish and firm, resinous flowers. Indoor yields can reach approximately 1.31 oz/ft² (400 g/m²), while outdoor plants may produce around 3.53–4.23 oz (100–120 g) each. The variety can be grown throughout the season when conditions are suitable.

Choose Yumbolt Auto for Humboldt-inspired flavor, a soothing indica presence, and a fast, manageable grow. Grassfarmer offers premium genetics in small and bulk quantities, with fast, discreet shipping and guaranteed delivery in the USA, Canada, the European Union, and the U.K. Shop with confidence and get your next grow underway.

Attributes

Climate Temperate
Effects Calming, Relaxed, Sleepy
Flavors Berry, Earthy, Sweet
Genetics 80% Indica / 20% Sativa
Harvest Month All Season
Height 4.59 ft | 1.4 m
Indoor Yield 1.31 oz/ft² | 400 g/m²
Life Cycle 8–10 weeks
Lineage Yumbolt x Lowryder 2
Medicinal Arthritis, Insomnia, Pain
Outdoor Yield 3.53–4.23 oz/plant | 100–120 g/plant
Sex Feminized
THC 12%–24% (High)
Terpenes Alpha-Pinene, Camphene, Linalool, Myrcene