AMS Feminized Seeds by Green House – Anti-Mold Swiss Sativa x Indica for Humid Climates

The AMS (Anti-Mold Strain) feminized seed from Green House Seed Co. is a legendary Swiss cross designed to conquer humid climates and deliver heavy, resin-coated harvests without the heartbreak of bud rot.

Does the constant fear of mold ruining your precious outdoor harvest keep you up at night? Watching weeks of care turn to grey fuzz in damp autumn air is a special kind of grower's agony. It means lost yield, wasted effort, and the frustration of an unfinished season. But what if your plants could laugh in the face of humidity? The AMS was bred specifically for this battle. Its genetics, a cross of robust Swiss Sativa and Swiss Indica, are forged for resilience. This isn't just a strain; it's your insurance policy against the elements, turning problematic gardens into prolific ones.

Before You Pop Your AMS Seeds

Getting AMS started is straightforward, but a little prep sets you up for monster results. You'll need a sunny spot with good airflow or a well-ventilated indoor tent. Gather your preferred medium—it's not fussy but thrives in a well-draining soil or coco mix. A simple set of quality nutrients for each growth phase is all the extra input it needs.

• Germinate in a warm (22–25°C / 71–77°F), humid environment for the fastest taproot emergence.
• Start in a small pot and transplant to its final home early to avoid stunting its vigorous roots.
• If starting indoors, plan for a vegetative period of 4-6 weeks to build a strong structure before triggering flowering.

During the AMS Grow Cycle

Watching AMS develop is a lesson in rugged botany. The plant builds a sturdy, well-branched frame with dark green leaves. During the stretch in early flower, it won't get excessively tall, making it manageable indoors around 0.80–1.20 m (2.62–3.94 ft), but outdoors it can reach a proud 1.50–2.00 m (4.92–6.56 ft).

This is where its famous mold resistance shines. Even as dense, rock-hard buds form and swell, they resist botrytis where other strains would succumb. Keep airflow optimal, and consider a light organic preventative spray during the final weeks if your climate is extreme. The aroma evolves from earthy to a intense, sweet fragrance of overripe red fruits and forest floor.

After Harvest: Enjoying the Anti-Mold Bounty

Your reward is a substantial harvest of compact, glistening buds. Indoors, yields can reach 500–700 g/m² (1.61–2.25 oz/ft²), while outdoor plants can produce 600–800 g (1.32–1.76 lb) each. The smoke is smooth, translating that sweet, jam-like aroma into a flavor with earthy undertones.

The effect is a classic, clear-headed sativa-leaning high that sparks creativity and focus without sedation, perfect for daytime activities. Post-harvest, the plants require no special cleanup, and the seeds themselves store reliably for years when kept cool and dark.

Short- and Long-Term Advantages and Benefits

• Immediate Peace of Mind: Grow with confidence in humid or unpredictable climates where mold typically wins.
• Maximized Yield Security: Dense bud structure combined with mold resistance means you harvest almost everything you grow.
• Manageable Growth: Robust but not overly stretchy structure makes it suitable for both indoor tents and discreet outdoor gardens.
• Consistent Quality: Reliable genetics from a trusted breeder like Green House ensure predictable results harvest after harvest.
• Versatile Usage: The clear, energetic high makes it ideal for daytime use, creative projects, or social settings.
• Great for Beginners: High resistance to common problems makes it a forgiving choice for newer growers.
• Long-Term Value: High yield potential and crop security offer excellent return on investment from just a few seeds.

Technical Specifications

• Breeder/Brand: Green House Seed Co.
• Type: Feminized Photoperiod
• Dominance: 40% Sativa / 60% Indica Hybrid
• Genetics: Swiss Sativa x Swiss Indica
• Indoor Flowering: 8-9 weeks
• Outdoor Harvest (N. Hemisphere): Late September
• Indoor Yield: 500-700 g/m² (approx. 1.61-2.25 oz/ft²)
• Outdoor Yield: Up to 800 g/plant (approx. 1.76 lb/plant)
• Indoor Height: 0.80-1.20 m (2.62-3.94 ft)
• Outdoor Height: 1.50-2.00 m (4.92-6.56 ft)
• Difficulty: Low to Medium
• Ideal Climate: Temperate to Continental; highly resistant to humid conditions.
• Resistance: Exceptionally high resistance to mold (botrytis) and pests.
• Training: Suitable for LST, SCROG; responds well to topping.
• Recommended Pot Size: 15-20 L (3.96-5.28 gal) final pot for photoperiod growth.
• THC Content: Approx. 19%
• CBD Content:
• Aromatic Profile: Sweet, complex, ripe red fruits, earthy, forest floor.
• Effect: Clear-headed, creative, energetic, focused; daytime use.

Frequently Asked Questions

How mold-resistant is AMS really?

Extremely. It was literally named "Anti-Mold Strain" by its breeders. While no plant is 100% immune in terrible conditions, AMS is famously one of the most reliable choices for damp, humid, or rainy outdoor environments where botrytis is a common threat.

Is AMS suitable for beginner growers?

Absolutely. Its combination of robust growth, high resistance to common problems like mold and pests, and forgiving nature makes it an excellent choice for those learning the ropes. It's resilient enough to bounce back from minor mistakes.

What's the best way to train AMS plants?

Its sturdy structure and good branching respond very well to low-stress training (LST) to open up the canopy and increase light penetration. Topping early in vegetation can encourage multiple main colas. It's also a great candidate for a SCROG net to maximize indoor space.

When is the optimal time to harvest AMS outdoors?

In the Northern Hemisphere, AMS is typically ready in late September. Watch the trichomes: mostly milky white with some amber for a balanced effect. Harvesting a bit earlier can preserve its more energetic sativa qualities.

Can AMS be grown indoors successfully?

Yes, it performs very well indoors. Its manageable height and response to training make it suitable for tents. The main advantage indoors is you can perfectly control the environment, but its mold resistance is a bonus even if humidity fluctuates.

Personal Experience of Pevgrow’s CEO (Alan)

Let me tell you, AMS is a workhorse. I've run it in our test garden in a region that gets autumn rains, and where other fancy strains started to spot, the AMS stood proud and clean. The structure is solid—you don't need to stake every branch. I prefer giving it a long vegetative period indoors, about 6 weeks, topping it once, then moving it outside after the last frost. It bushes out nicely. The smell in late flower is intense, like a berry jam factory next to a pine forest, so a carbon filter is a must indoors. The high is exactly as advertised: clear and functional. It's my go-to recommendation for anyone asking for a "set it and forget it" outdoor strain that actually finishes. Don't overcomplicate the feed; it's not a heavy eater. A solid base nutrient with a slight PK boost in weeks 5-6 of flower is all it needs to pump out those rock-hard, resinous buds.