Santa Marta Haze Auto Seeds by Seed Stockers – High-THC Sativa Autoflower with Fruity-Pine Aroma

Santa Marta Haze Auto by Seed Stockers is a high-THC, sativa-dominant autoflowering strain that delivers massive yields and an uplifting, long-lasting cerebral buzz in just 75 days from seed to harvest.

Are you tired of waiting months for a sativa high that actually hits?

Most sativas take forever to grow, stretch like crazy, and need constant attention. You’re left with mediocre yields and a buzz that fades too fast. And if you’re growing indoors, space and stealth matter — but you still want that clear, energizing head change that keeps your ideas flowing.

It’s frustrating when your plant smells up the room before it even flowers, or when you prune too hard and kill your yield. You want something fast, reliable, and powerful — without the hassle of a 5-month grow cycle or a PhD in plant training.

Enter Santa Marta Haze Auto. This autoflowering powerhouse combines Colombian jungle genetics with Amnesia Haze to give you a fast, low-maintenance grow with a truly psychedelic punch. Ready in just 11 weeks, it produces dense, resin-coated buds with a fresh, fruity-pine aroma and THC levels hitting up to 26%. Whether you’re in a small tent or a sunny balcony, this strain adapts fast and delivers big — no training needed.

Massive yields with minimal effort

• Indoor harvests up to 550 g/m² (1.94 oz/ft²) under 600W HPS
• Outdoor yields reach 150 g/plant (5.29 oz/plant) in 90–100 days
• Thrives in 18–20 hours of daily light, no photoperiod switch needed
• Reaches 0.80–1.10 m (2.62–3.61 ft) tall — perfect for stealth grows
• Resistant to mold and pests, ideal for humid or temperate climates

What you’ll experience from first spark to final exhale

• A fast-acting, euphoric head buzz that sparks creativity and focus
• Fruity, spicy, and piney flavors with a smooth, clean finish
• Long-lasting effects thanks to THC levels between 20–26%
• Minimal odor during grow — great for discreet setups
• Smooth vapor or smoke, perfect for daytime or social sessions

How to grow Santa Marta Haze Auto for best results

For a strong start, germinate seeds in a moist paper towel or use Coco A y B by Atami to boost root development in coco coir. Transplant once the taproot is 1 cm long into a final pot of 18–27 L to avoid stress.

Keep lighting at 18–20 hours daily throughout the cycle. Water with pH-balanced solution (5.8–6.2 for coco, 6.0–6.5 for soil) and avoid overfeeding — this strain hates nutrient burn. Use light organic inputs like Bio Bloom by BioBizz during flowering to enhance terpene production and resin.

Support the main cola if needed, but avoid topping or aggressive pruning — it’s an autoflower. Ensure good airflow to prevent humidity buildup, especially in the dense lower branches. Flush 7–10 days before harvest when trichomes turn milky to amber for a smoother high.

Technical specifications

• Breeder / Brand: Seed Stockers
• Type: Autoflowering
• Dominance: Sativa (90%)
• Genetics: Amnesia Haze × Santa Marta (Colombian Jungle Haze)
• Life cycle: 75 days (indoor), 90–100 days (outdoor)
• Indoor yield: 450–550 g/m² (1.59–1.94 oz/ft²)
• Outdoor yield: 75–150 g/plant (2.65–5.29 oz/plant)
• Height (indoor): 0.80–1.10 m (2.62–3.61 ft)
• Height (outdoor): up to 1.20 m (3.94 ft)
• Difficulty: Low to intermediate
• Structure: Tall, sativa-like with long colas and moderate branching
• Climate: Temperate, Mediterranean, continental
• Resistance: Moderate resistance to mold and pests
• Training: Suitable for LST; avoid topping or FIM
• Recommended pot: 18–27 L final pot (early transplant)
• Light cycle: 18–20 h daily (entire cycle)
• THC: 20–26%
• CBD: Low (approx.
• Aromatic profile: Limonene, pinene, myrcene
• Flavour: Fruity, spicy, pine, fresh
• Effect: Cerebral, stimulating, creative, uplifting

Frequently Asked Questions

How long does Santa Marta Haze Auto take to grow?

From seed to harvest, it takes about 75 days indoors and 90–100 days outdoors, making it one of the fastest high-THC sativas available.

Is this strain good for beginners?

Yes — it’s easy to grow with minimal training. Just keep nutrients low and avoid pruning. Great for first-time autoflower growers.

Does it smell strong during flowering?

It has a noticeable fruity-pine aroma, especially in late flowering. Use a carbon filter like those in our grow shop if growing indoors for discretion.

Can I grow it outdoors in a cold climate?

It prefers warm, sunny conditions but handles mild temperature drops. Avoid cold, wet autumns — harvest before heavy rains to prevent mold.

Personal Experience of Pevgrow’s CEO (Alan)

I grew Santa Marta Haze Auto in my 1.2 m² tent under a 600W quantum board, and damn — the trichomes started glittering by week 6. I used a 20L fabric pot with light mix and 30% coco, and she stretched about 30 cm in pre-flower. No topping, just gentle LST to open up the lower nodes. By week 10, the smell was unreal — fresh pine and citrus, not the skunky stink that sets off alarms. I flushed for 10 days, dried slowly at 18°C and 55% RH, and cured in jars. The high? Pure creative fire — perfect for writing, music, or long walks. I’ve grown photoperiod Hazes for years, but this auto delivered 90% of the buzz in half the time. My only tip: don’t overwater in week 4–6. She’ll tell you when she’s thirsty.