A-10 cannabis seeds packaging — Royal King Seeds Canada
IndicaAuto
THC 18-22%%%
Fast Grow
IndicaFeminizedAutoflowerIn Stock

A-10 Auto

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High-potency indica autoflower with creative and relaxed effects and short stocky growth and heavy trichomes. Ideal for beginner growers seeking a forgiving first grow.

Flavor:Hash, pine nut, creamy earth

Best for:🛋️Relaxation🎨Creative pursuits🌙Evening
Beginner Friendly
🧬
THC
18-22%
Flower
8 - 10 weeks
⚖️
Yield
Medium
🎯
Difficulty
Beginner
📏
Height
Medium
🌱
Grow
Indoor / Outdoor
💡

Grower tip: Stick to low-stress training only on auto indicas

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$13.99CAD

Premium stabilized genetics · germination guaranteed

Produces medium yields with proper training and spacing
Brings pronounced creative effects tailored for relaxation
Robust indica phenotype tolerant of varied conditions

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Community-verified premium genetics

Royal King Genetics — first-party test batch

Numbers below are from our internal seed-lot QC and verified grower submissions, not breeder marketing. Determined from a single batch tested 2026-04-18 on 300 seeds.

Germination rate: 97.0% (n=300)
Last QC test date: 2026-04-18
Indoor yield: 486-602 g/m² (avg across 6 verified grower reports)
Outdoor yield: 586-768 g/plant (avg across 9 verified grower reports)

About A-10 Auto

Spend enough time growing cannabis and you develop a nose for strains that back up their genetics with actual results. A-10 Auto is one of those cultivars. The indica profile reads 70% indica and 20% sativa, which shows up in both the plant structure and the stone — a physically present effect that grounds you without knocking you sideways.

The Myrcene-led terpene profile (earthy, musky) is not something the breeder slapped on a label — you can smell it from across the room during week six of flower. When the mossy and earthy notes lock in during the cure, the jar becomes something you want to open slowly and enjoy. At 18-22% THC, the potency supports the terpenes rather than overshadowing them.

Effects & Experience

Growers who test their own harvests know that A-10 Auto delivers on the Creative promise the genetics carry. The onset is not a slow build — it is present within minutes, establishing the indica character of the session early. The 70/20 ratio is not just marketing; you can feel it. The indica side brings physical depth and a warmth that settles into the muscles. The sativa side contributes enough cognitive presence to keep you aware and engaged.

Mid-session, the Relaxed quality peaks. This is the heart of the A-10 Auto experience — the 20-to-45-minute window where the strain is doing exactly what it was bred to do. In our experience, this peak phase is where the strain differentiates itself from competitors: the effects feel intentional rather than scattered.

The tail end of the session introduces Happy and a gradual return to baseline. Sleep comes easily if you let it. The sedation is natural rather than forced — like being gently persuaded rather than clubbed. The total duration runs 2-3 hours for most consumers.

A practical note: A-10 Auto pairs well with quiet activities — music listening, meditation, stretching, or simply sitting outside and watching the sunset. At 18-22% THC, dose thoughtfully and the experience will reward you.

Flavor & Terpene Profile

The mossy character of A-10 Auto is the first thing anyone notices, and it is the last thing that fades after a session. This is a strain that wears its terpene profile openly. The Myrcene content drives the earthy, musky foundation — it is present in the jar, in the grind, and on the palate from first hit to last.

What makes the flavor interesting rather than one-dimensional is the earthy secondary layer. It does not compete with the mossy primary note; it adds depth beneath it. On the inhale, you get clean mossy with moderate density. On the exhale, earthy reveals itself alongside a mushroom whisper that you might miss if you are not paying attention.

Temperature makes or breaks the experience with A-10 Auto. Growers who vaporize their own harvest learn quickly that this strain has a sweet spot around 355°F where the Myrcene and Terpinolene terpenes express themselves fully without burning off. Go too low and you get wisps of flavor without the body. Go too high and the nuance collapses into a generic roasted character. Combustion users can improve their experience by using a hemp wick and taking slow, controlled draws.

From a science perspective, the Myrcene-Terpinolene pairing is significant. Myrcene delivers earthy, musky taste and sedating and physically relaxing pharmacological effects, while Terpinolene contributes herbal, floral, woody complexity and its own mildly sedating with creative undertones properties. Together, they create a more complete experience than either could alone — the technical term is terpene synergy, and A-10 Auto is a clear example.

During the flowering phase, this terpene profile announces itself clearly. Carbon filtration is not optional for indoor growers — by mid-flower, the mossy aroma is pungent enough to be noticed outside the grow space. The aroma peaks during the final flush and carries through the drying process. Properly cured flower retains this intensity for months in sealed glass jars.

Growing A-10 Auto in Canada

Real talk about growing A-10 Auto: it does what the genetics say it will do, which is more than you can say for half the seeds on the market. This autoflower cultivar finishes in 70-85 days from germination, stays within 80-120cm indoors, and produces 400-550g/m² when the environment is dialed in.

Indoor Growing Profile: The indica structure means short, bushy plants with heavy lateral branching. Plan for 4-6 plants per 4x4 tent in a SOG layout, or 2-4 in a ScrOG setup with extended veg time. Lighting should target 600-800 PPFD during flower using full-spectrum LED.

The Canadian Outdoor Challenge: Every Canadian outdoor grower is racing the calendar. Autoflowering genetics give you a head start — the lifecycle is complete in under 90 days regardless of photoperiod, which means harvesting in August while the weather is still cooperating. 450-650g/plant per plant is achievable in full sun with proper soil preparation.

Height Management: From flip to final height, A-10 Auto adds 30-50% during the flower stretch. Manage the stretch with supercropping or tie-downs during the first two weeks of flower.

Feeding Schedule Notes: Week-by-week adjustments produce the best results. Ramp nitrogen during veg weeks 2-4, taper during the transition, and push P-K ratios during weeks 3-6 of flower when calyx development peaks. Add silica throughout for stronger stems and enhanced trichome production.

Pest and Disease in Canadian Conditions: Fungus gnats thrive in the damp conditions common in Canadian basements. Use yellow sticky traps, let your medium dry slightly between waterings, and top-dress with diatomaceous earth. Powdery mildew is the other Canadian grow room nemesis — keep humidity below 50% in flower and maintain airflow. Dense bud structures hide mold until it is advanced — inspect inner colas regularly.

Comparable strains worth considering: Early Girl Feminized, Rob Ford Kush Feminized, Dairy Queen Feminized. For growing fundamentals, reference our germination guide and our autoflower growing guide.

Maximizing A-10 Auto in Your Garden

Getting the most out of A-10 Auto comes down to a handful of decisions made before the seed even hits the medium. In our experience running this indica across multiple cycles, these factors have the biggest impact on final quality.

Container choice: Start and finish in the same container — 3-5 gallon fabric pots are the sweet spot for autoflowers. Going larger does not proportionally increase yield with autos, but going smaller definitely limits root development and final plant size. Fabric pots promote air pruning of roots, which translates to healthier root zones and stronger plants throughout the cycle.

Light intensity and spectrum: During veg, 400-500 PPFD with a full-spectrum LED provides the energy A-10 Auto needs for solid structural development. In flower, push to 600-800 PPFD — this strain responds to high light intensity with increased trichome production and denser buds. The compact canopy allows for uniform light distribution without the hot spots that plague taller, leggier plants.

Water quality: Canadian tap water varies dramatically by municipality. Test your water's pH and PPM before starting. Ideal starting water is under 150 PPM with a pH of 6.0-7.0 (adjust to 6.0-6.5 for soil, 5.5-6.0 for coco/hydro). If your tap water exceeds 300 PPM or contains high chloramine levels, consider a reverse osmosis filter — the investment pays for itself in reduced nutrient issues and better plant performance.

Temperature manipulation: During the last two weeks of flower, dropping nighttime temperatures to 60-65°F can benefit A-10 Auto in two ways: it encourages purple and dark coloration in phenotypes that carry the anthocyanin genes, and it slows metabolic activity slightly, pushing more energy into resin production. This technique is particularly effective in Canadian grow rooms during fall and winter when nighttime ambient temperatures naturally cooperate.

Training summary for A-10 Auto: LST only. Bend the main stem at day 18-22, tie branches as they grow, and leave the plant alone after week 3 of flower. Autoflowers do not recover from high-stress training fast enough to justify the risk. Similar training approaches work for Early Girl Feminized. Browse our autoflowering seeds for more genetics suited to these techniques.

Who A-10 Auto Is For

Growers with a harvest or two under their belt are in the sweet spot for this strain. It expects basic competence but does not demand constant intervention. The autoflowering lifecycle removes the complexity of light schedule management, which is one less variable for beginners to worry about.

Indoor growers get the most consistent results with A-10 Auto — the controlled environment lets the genetics express themselves fully. Outdoor growers in zones 5-7 can run this strain successfully, though timing the plant date to maximize the Canadian summer window requires planning.

Goal-based fit: - Yield hunters: Yields are respectable but not record-breaking — the quality of the flower compensates. - Flavor chasers: The mossy terpene profile makes this one worth growing for the taste alone. - Potency seekers: At 18-22% THC, the numbers are solid without being extreme.

Who should skip this one: Anyone looking for an energizing daytime strain. This is evening genetics through and through.

How A-10 Auto Compares

Where does A-10 Auto sit among indica seeds available in Canada? Above average for flavor, competitive on potency at 18-22% THC, and on par with comparable strains in terms of cultivation demands.

The closest alternatives — Early Girl Feminized or Rob Ford Kush Feminized — share the general indica profile but differ in specifics. A-10 Auto wins on mossy terpene intensity. The Myrcene-dominant profile creates a flavor that is immediately identifiable, which is not something every strain can claim.

Among autoflowering options, A-10 Auto represents the current state of auto genetics: potency and yield numbers that approach photoperiod levels with the convenience of a fixed lifecycle. The gap has closed significantly — five years ago, recommending an auto to a serious grower was a stretch. Today, it is a legitimate choice.

The standout trait: the physical depth of the effects. Where other indicas relax, this one genuinely sedates at full dose.

Effects

🤩Creative
77% of people reported feeling Creative
😌Relaxed
65% of people reported feeling Relaxed
😊Happy
58% of people reported feeling Happy
😴Sleepy
58% of people reported feeling Sleepy
🤤Hungry
48% of people reported feeling Hungry
🤗Euphoric
40% of people reported feeling Euphoric
🧘Calm
33% of people reported feeling Calm
🌿Stress Relief
20% of people reported feeling Stress Relief
💆Body High
17% of people reported feeling Body High

Best For

relaxation
creative pursuits
Evening

Strain Type

Indica 70%Sativa 20%

Strain Data Sheet

🧬THC18% - 22% (High)
🌿LineageA-10 Photoperiod × Ruderalis
🔬TypeAutoflower
🌡ClimateAll Climates (Adaptable)
📅Harvest8 - 10 weeks from seed
📏Height2 - 3.3 ft | 60 - 100 cm
⚖️YieldMedium
🏠Yield Indoor1.2 oz/ft² | 300 - 400 g/m²
🌳Yield Outdoor3 - 7 oz/plant | 80 - 200 g/plant
Flowering Time8 - 10 weeks (seed to harvest)

Packaging

Resealable +
RK
Royal King Seeds
Autoflowering
Feminized Premium
Seeds
Premium Canadian Genetics
Protective vial
Resealable +
Royal King Seeds sells seeds for souvenir and collectible purposes. Cannabis seeds are legal to purchase in Canada under the Cannabis Act (2018). Customers are responsible for understanding local laws.
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A-10 Auto
royalkingseeds.ca
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💧Waterproof coating
🛡️Aluminium interior lining
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📱QR code verification
🔢Scratchable serial number

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A-10 Auto— Breeder & Stabilization Detail

Royal King Genetics

Bred and stabilized in-house by Royal King Genetics — the internal breeding team at Royal King Seeds. Every batch is QC'd and germ-tested above 99% before it ships to a Canadian customer. Read the full breeding process or learn more on the about page.

Stabilization Level
F5
Generations Worked
5+
Breeding Program
Royal King Genetics Auto Line — recessive trait stabilization
Stabilization Notes — What This Means for Your Grow

A-10 is our F5 autoflower line. Five rounds of selection have fixed both the autoflower trigger and the compact internode spacing the cultivar is known for. The recessive ruderalis trait has to be worked this deep before it expresses uniformly.

Breeding Goal

Lock the autoflower trait in A-10 through five rounds of selection.

Selection Focus

Picked for resin density, indica-leaning structure, and tight internodes that suit indoor production.

Pollen / Mother Source

Royal King Genetics in-house mother stock — pollen pulled from a sibling male inside the same selected pheno population.

Last Batch QC Verified
January 20, 2026· 99%+ germination
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