
- Feminized
- Premium
AMS XTRM ® Feminized Seeds
Kiyoh 8.2/10 from 8,372 shop reviews (Sep 30, 2026) · Read reviews
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- Sun-kissed genetics: most of our seeds are bred outdoors, under the full spectrum of natural sunlight
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- THC
- Up to 23%
- Indoor yield
- Up to 400 g/m²
- Flowering
- Average (8-12 weeks)
- Effect
- Creative, Euphoric, Relaxed
- Difficulty
- Moderate
- Flavor
- Citrus, Spicy, Tropical
Specifications
| Seed Type | Sativa |
| THC Level | High THC (Up to 23%) |
| Yield | High |
| Yield (indoor) | Up to 400 grams / 14.1 ounces per sq meter |
| Indica / Sativa | 20% / 80% |
| Flowering Time | Average (8-12 weeks) |
| Height (indoor) | Up to 110 cm / 43.3 inch |
| Plant Size | Average |
| Climate | Temperate, Tropical |
| Grow Difficulty | Moderate |
| Effects | Creative, Euphoric, Relaxed |
| Flavor | Citrus, Spicy, Tropical |
About AMS XTRM ® Feminized Seeds
About AMS XTRM feminized seeds
AMS XTRM feminized seeds grow into a sativa-dominant plant, 80% sativa and 20% indica, with long-fingered leaves. The buds look pale green because of the thick layer of resin that covers them. It is a steady, stable plant that stays predictable from one run to the next, which is a good quality in a variety you plan to grow more than once. The seeds are feminized, so you do not have to sort males from females.
What are the effects of AMS XTRM?
The high is creative, euphoric and relaxed. Because the genetics lean so far toward sativa, the head effect comes first and tends to feel clear and focused, which is why many people save it for the morning or early afternoon. The relaxed side shows up as a loose, easy body feel rather than anything heavy. THC reaches up to 23%, so it sits in the high range. Start with small amounts if you are not used to strong cannabis.
Taste and aroma
The flavor is exotic: citrus and spice on top, with a tropical note underneath. The citrus is the part you notice first, and the spice lingers on the exhale.
Strain characteristics
The plant is rated moderate for difficulty. It is powerful and steady, but a first-time grower should expect to read up on watering, feeding and light distance rather than assume it will look after itself. Plant size is average, and it suits temperate and tropical climates.
Growing AMS XTRM indoors
Indoors the plant stays up to about 110 cm (43 in). That is enough room for a sativa to stretch in a tent, but check your ceiling height before you commit. Low-stress training, where you bend the main stem and tie it down, spreads the canopy and keeps the lamp at an even distance from every bud site. Yield indoors goes up to 400 grams (14 oz) per square meter (11 ft2), which counts as a high yield.
Growing AMS XTRM outdoors
Outdoors the plant gets much bigger. Its average height is around 225 cm (7.5 ft), and the yield rises to as much as 750 grams (26.5 oz) per square meter. Give it a sunny spot with space on every side. Temperate or tropical conditions are where it does best, so a short, cold season is a poor match.
Flowering time and harvest
Flowering takes 8 to 12 weeks, and the typical finish is somewhere between 9 and 11 weeks. Do not rush the harvest. The sticky resin that makes this strain recognizable builds up in the last three weeks. Look at the trichomes with a loupe or a small microscope: cloudy trichomes with a few amber ones mean the buds are ready, while mostly clear ones mean wait longer. Sativa-leaning plants often reward patience with a clearer, brighter high.
Drying and curing
Hang the branches in a dark room at moderate humidity for about a week to ten days, until the small stems snap instead of bend. Then move the buds into airtight jars and open them daily at first. A slow cure keeps the citrus and spice notes from fading.
Who is this strain for?
AMS XTRM suits growers who want a strong sativa with real yield and have a little experience behind them. It also suits people who prefer a daytime effect that is creative and upbeat but still relaxed in the body.
Product reviews
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