Solomatic CBD
Cannabis seeds
by Royal Queen Seeds
Solomatic CBD Autoflower Seeds by Royal Queen Seeds
Solomatic CBD is an autoflowering cannabis seed from Royal Queen Seeds that delivers up to 21% CBD with less than 1% THC — a 22:1 CBD-to-THC ratio. That makes it the best CBD seed in the RQS catalogue for growers who want cannabidiol-rich flower without any psychoactive effect. Cross Diesel CBD with Asia CBD Auto, add a touch of ruderalis genetics, and you get a plant that goes from seed to harvest in 9–10 weeks with zero light-cycle fiddling required.
Pack Sizes
| Pack | Seeds | SKU |
|---|---|---|
| 1 seed | 1 | CSRQ0314 |
| 3 seeds | 3 | CSRQ0315 |
| 5 seeds | 5 | CSRQ0316 |
| 10 seeds | 10 | CSRQ0317 |
Starting with a single seed is fine if you want to test the genetics, but we'd go for the 3-pack — it gives you room for one plant that's a bit slower without the pressure of having put all your eggs in one basket. The 10-pack makes sense if you're planning a dedicated CBD crop or want to run a full tent.
Why Solomatic CBD Seeds Deserve a Spot in Your Grow
Solomatic CBD produces the highest CBD-to-THC ratio of any autoflower in the Royal Queen Seeds range, at 22:1. Most CBD strains still carry enough THC to produce a noticeable head change. Solomatic CBD doesn't. With THC locked below 1% and CBD reaching up to 21%, this is a strain built entirely around cannabidiol. If you've been growing THC-dominant plants and want to add a CBD-only harvest to your rotation — or if you're growing specifically for someone who uses CBD but can't tolerate THC — Solomatic is the obvious pick when you buy from the Royal Queen Seeds lineup.
The autoflowering genetics take most of the guesswork out of the grow. You don't need a timer switch, you don't need to worry about light leaks triggering re-veg, and you don't need a separate veg tent. Set your lights to 18–20 hours, keep the environment stable, and the plant handles the rest. We've seen first-time growers pull a solid harvest from autoflowers when they'd have struggled with photoperiod strains — and Solomatic is one of the more forgiving autos in the RQS range.
One honest note: autoflowers don't respond well to heavy stress training or major mistakes in the early weeks. If you overwater a photoperiod plant, she recovers. Overwater an auto during week two and you've lost growing time you can't get back. Treat her gently, especially in the first three weeks, and she'll reward you.
Solomatic CBD Strain Specifications
Solomatic CBD is a feminised autoflower with Diesel CBD × Asia CBD Auto genetics and ruderalis heritage, finishing in 9–10 weeks from seed. Here are the full specs at a glance.
| Specification | Detail |
|---|---|
| Seed bank | Royal Queen Seeds |
| Genetics | Diesel CBD x Asia CBD Auto (with ruderalis) |
| Type | Autoflowering, feminised |
| CBD content | Up to 21% |
| THC content | Below 1% |
| CBD:THC ratio | 22:1 |
| Seed to harvest | 9–10 weeks |
| Height (indoor) | 90–120 cm |
| Yield (indoor) | Up to 475 g/m² |
| Yield (outdoor) | Up to 150 g per plant |
| Light cycle | 18–20 hours throughout |
Growing Solomatic CBD: What to Expect from Seed to Harvest
Solomatic CBD completes its full life cycle in 9–10 weeks from germination, reaching 90–120 cm indoors. That means she fits comfortably in a 120 cm tent with room for a light and filter above. Outdoors, expect her to stretch slightly taller, but she's not going to tower over a garden fence. The compact size also makes her a strong candidate for balcony grows or small greenhouses.
That 9–10 week timeline is fast, even for an autoflower. You can realistically run three full cycles in a single growing season if you're working indoors. Keep the light on for 18–20 hours a day — more light generally means more yield with autos, though 20/4 is the sweet spot we'd recommend. No need to flip to 12/12.
Yields are respectable for a CBD auto: up to 475 g/m² indoors under good conditions, and around 150 g per plant outdoors. Those numbers assume decent light (at least 300W LED equivalent for a square metre), proper feeding, and no major stress events. If you're running a basic setup, expect to land somewhere in the 300–400 g/m² range, which is still a solid return for a 10-week turnaround.
Aroma, Flavour, and the Solomatic CBD Experience
Solomatic CBD delivers a diesel-forward, fuel-tinged aroma with sweet and earthy undertones inherited from its Diesel CBD parent. It smells like proper cannabis — not like the flat, grassy scent you sometimes get from hemp-derived CBD flower. When you crack open a cured bud, there's a sharpness to it that tells you the terpene profile is doing its job. It's the kind of jar you open twice — once to grab a nug, once just to smell it again.
On the palate, the diesel character softens into something smoother, with a hint of pine and spice on the exhale. If you've smoked or vaped high-CBD strains before and found them bland, Solomatic is a different story. Royal Queen Seeds clearly bred this one for flavour, not just cannabinoid content.
Because THC sits below 1%, there's no psychoactive effect to speak of. What you do get is the body-level calm that CBD is traditionally associated with. Data from the European Monitoring Centre for Drugs and Drug Addiction (EMCDDA) confirms growing consumer interest in high-CBD, low-THC cannabis cultivars across Europe, and Solomatic fits squarely in that category. Research suggests CBD may support relaxation without sedation (Shannon et al., 2019), and that tracks with what we hear from customers who grow this strain specifically for daytime use. Dry mouth and dry eyes are the most commonly reported side effects — keep water handy.
How to Grow Solomatic CBD Autoflower Seeds
Growing Solomatic CBD from seed to harvest takes seven straightforward steps, starting with germination and ending with a cured jar of CBD-rich flower.
- Germinate your Solomatic CBD seeds using the paper towel method or directly in a small pot of moist, light soil. Taproots typically emerge within 24–72 hours.
- Plant the germinated seed 1–2 cm deep in its final container. Autoflowers don't like transplanting — start in the pot she'll finish in. A 10–15 litre fabric pot works well.
- Set your lights to 18–20 hours on, 4–6 hours off. Keep the light at the manufacturer's recommended distance to avoid stretching or light burn.
- Water sparingly in the first two weeks. The root system is tiny — overwatering is the number one killer of autoflower seedlings. Let the top centimetre of soil dry out between waterings.
- Begin light feeding around week 3 with a mild vegetative nutrient. Switch to bloom nutrients when you see the first pistils, usually around week 4–5.
- Monitor trichomes from week 8 onwards. Solomatic CBD is ready to harvest at 9–10 weeks from seed. Cloudy trichomes with a few amber heads indicate peak CBD content.
- Harvest, dry for 7–10 days in a dark room at 18–22°C with 55–60% humidity, then cure in glass jars for at least two weeks. Proper drying and curing make a massive difference to the final flavour.
Running Solomatic CBD in a small tent? The Dark Box 80x80x160 gives her exactly the headroom she needs, and a carbon filter keeps the diesel terps from announcing your grow to the neighbours. If you're starting from scratch, a complete grow kit saves you the hassle of matching components.
Solomatic CBD vs Other CBD Strains from Royal Queen Seeds
Solomatic CBD is the only autoflower in the Royal Queen Seeds catalogue with a 22:1 CBD-to-THC ratio, making it the top choice for growers who want maximum CBD with virtually no THC. Royal Medic is a photoperiod strain with a roughly 1:1 CBD-to-THC ratio — good if you want some THC in the mix, but a completely different plant if you're after CBD-only flower. RQS also offers other photoperiod options that lean toward balanced ratios. None of them autoflower, so both require light cycle management and a longer overall grow time.
If you want the highest CBD content with the lowest possible THC, and you want autoflowering convenience on top, there's no contest within the RQS range. The trade-off is that autoflowers generally yield less per plant than photoperiod strains — but the speed and simplicity more than compensate, especially for smaller setups.
What Makes Solomatic CBD Unique Among CBD Autoflowers
Solomatic CBD stands apart because it combines three traits that rarely appear together in a single seed: a 22:1 CBD-to-THC ratio, genuine autoflowering genetics, and a terpene profile that actually tastes like cannabis rather than hay. Most CBD autos on the market either carry more THC than advertised, take longer than claimed, or produce flower that's underwhelming in flavour. Solomatic consistently delivers on all three fronts, which is why it remains one of the most reordered CBD seeds we carry.
The Diesel CBD × Asia CBD Auto cross also gives Solomatic a genetic stability that some newer CBD autos lack. We've heard from growers who've run multiple packs and report very little variation between plants — they grow to similar heights, finish within the same week window, and produce comparable CBD levels. That predictability matters when you're planning a harvest around a specific timeline or need consistent cannabinoid content across a batch.
Frequently Asked Questions
Will Solomatic CBD get me high?
No. THC stays below 1%, which is far too low to produce any psychoactive effect. The 22:1 CBD-to-THC ratio means you get cannabidiol without the head change. You'll taste and smell proper cannabis, but there's no high to speak of.
How much CBD does Solomatic CBD produce per plant?
With up to 21% CBD in dried flower and yields of up to 475 g/m² indoors, a single square metre could produce roughly 100 g of CBD content at peak potency. One gram of 21% CBD flower contains approximately 210 mg of CBD.
Do I need to change the light cycle for Solomatic CBD?
No. As an autoflower, Solomatic CBD transitions from vegetative growth to flowering on her own internal clock. Keep lights at 18–20 hours throughout the entire 9–10 week cycle. No 12/12 flip needed.
Can I grow Solomatic CBD outdoors?
Yes. She grows slightly taller outdoors but stays manageable. Expect up to 150 g of dry bud per plant. She'll finish in about 10 weeks from seed regardless of the outdoor light schedule, thanks to her ruderalis genetics.
Is Solomatic CBD suitable for first-time growers?
It's one of the best CBD strains for beginners. The autoflowering genetics remove the need for light cycle management, and the 9–10 week seed-to-harvest timeline keeps things moving. Just avoid overwatering in the first two weeks and you'll be fine.
What are the parent genetics of Solomatic CBD?
Royal Queen Seeds crossed Diesel CBD with Asia CBD Auto, then incorporated ruderalis genetics for the autoflowering trait. The Diesel CBD parentage contributes the fuel-forward terpene profile, while Asia CBD Auto brings the high cannabidiol content and compact structure.
Does CBD counteract THC?
Research suggests CBD may modulate some of THC's psychoactive effects, though the mechanism isn't fully understood. With Solomatic CBD's 22:1 ratio and sub-1% THC, the question is largely academic — there's barely any THC present to counteract.
Where can I buy Solomatic CBD seeds?
You can order Solomatic CBD autoflower seeds directly from Azarius in packs of 1, 3, 5, or 10 seeds. All seeds are official Royal Queen Seeds stock, stored in climate-controlled conditions to preserve germination rates.
Last updated: April 2026
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Medical disclaimer. This content is for informational purposes only and does not constitute medical advice. Consult a qualified healthcare provider before use of any substance.