Sweet Pure CBD
Cannabis seeds
by Sweet Seeds
Sweet Pure CBD is a feminised cannabis seed strain from Sweet Seeds that delivers up to 15% cannabidiol with barely a trace of THC — between 0.4% and 1%. That ratio makes her one of the cleanest CBD-focused genetics on the market, bred specifically for growers who want cannabinoid-rich harvests without any psychoactive effects. If you've been hunting for a proper CBD workhorse that actually smells and tastes good, this is where you stop scrolling.
Why Sweet Pure CBD Seeds Stand Out
Sweet Seeds built this strain through two generations of autopollination (S2) from a CBD-rich clone with Diesel ancestry. The result is a slightly sativa-dominant hybrid — 60% sativa, 40% indica — that grows with vigour but stays manageable. The genetics are stabilised, which matters: you're not gambling on phenotype variation every time you pop a seed. The CBD-to-THC ratio sits roughly between 8:1 and 37:1 depending on the phenotype, and that consistency is what sets Sweet Pure CBD apart from the random "CBD-rich" seeds floating around.
We've carried Sweet Seeds for years. Their breeding programme is tight — they don't release genetics until the line is stable, and it shows. Sweet Pure CBD was their first near-pure CBD strain, and they clearly didn't rush it.
Sweet Pure CBD Aroma and Flavour Profile
Here's where this strain earns its name. Crack open a cured bud and you get a wave of sweet, ripe fruit — think mandarin peel left in the sun — layered over a clean cypress undertone that keeps it from being cloying. The Diesel heritage shows up as a faint fuel note on the exhale if you're paying attention, but it's subtle. For a CBD strain, the terpene profile is genuinely complex. Most CBD-dominant genetics smell like hay. This one actually smells like cannabis worth growing.
That aromatic complexity isn't just pleasant — it hints at a broader terpene and flavonoid content. According to research published in PMC, cannabinoids and terpenes together exhibit analgesic, anti-inflammatory, and neuroprotective effects that may work in combination (PMC10821245). A strain with this kind of terpene depth potentially offers more than its cannabinoid numbers alone suggest.
Growing Sweet Pure CBD Seeds
Sweet Pure CBD is a photoperiod feminised strain with a 9-week flowering time — reasonable for a sativa-leaning plant. She doesn't stretch excessively, but give her vertical space and she'll fill it. The slightly sativa structure means open, airy buds that resist mould better than dense indica flowers, which is a real advantage if you're growing in humid conditions.
- Germinate your seeds using the paper towel method or directly in a small pot of lightly moistened soil. Keep temperatures between 22–26°C.
- Transplant seedlings into their final containers once they've developed 3–4 sets of true leaves. She responds well to 11–15 litre pots indoors.
- Maintain 18/6 light during vegetative growth. She takes well to low-stress training (LST) — spreading those sativa branches opens up the canopy for better light penetration.
- Flip to 12/12 when plants reach roughly half your desired final height. Expect about 50% stretch during the first two weeks of flower.
- Harvest after 9 weeks of flowering when trichomes are mostly cloudy. For maximum CBD content, don't wait for amber — cloudy is your sweet spot.
- Dry slowly at 18–20°C and 55–60% humidity for 10–14 days, then cure in glass jars for at least two weeks.
| Specification | Detail |
|---|---|
| Seed Bank | Sweet Seeds |
| Seed Type | Feminised (photoperiod) |
| Genetics | S2 autopollination of CBD-rich Diesel clone |
| Sativa / Indica | 60% Sativa / 40% Indica |
| CBD Content | 8–15% |
| THC Content | 0.4–1% |
| Flowering Time | 9 weeks |
| Indoor Yield | Up to 500 g/m² |
| Outdoor Yield | Up to 600 g/plant |
| Available Packs | 3 seeds / 5 seeds |
CBD Yield and What the Research Says
With CBD levels reaching up to 15%, Sweet Pure CBD produces some of the most cannabidiol-dense flower you can grow from seed. To put that in perspective: 1 gram of dried flower at 15% CBD contains 150mg of cannabidiol. A modest indoor harvest of 400g gives you 60,000mg of CBD in raw flower — enough to last most people a very long time.
According to Healthline, researchers believe that components like CBD may be responsible for the pain-relieving effects historically attributed to cannabis, with use in pain management dating back to 2900 B.C. in Chinese medicine (healthline.com/nutrition/cbd-oil-benefits). And a study published in PMC found that CBD may help reduce the formation of lipid inflammation precursors such as arachidonic acid and cytokines (PMC11641728). These are research findings, not guarantees — but they explain why growers are increasingly interested in high-CBD cultivars like this one.
The near-zero THC content is worth emphasising. According to a case-control study cited in PMC, administration of cannabis rich in THC may be associated with a raised risk of psychosis in certain patients (PMC7830475). Sweet Pure CBD sidesteps that concern entirely. At 0.4–1% THC, you're well below any psychoactive threshold.
Who Should Grow Sweet Pure CBD
This strain fills a specific gap. If you're growing for personal CBD supply and you don't want to deal with THC — whether for personal preference, sensitivity, or because you simply want to use CBD during the day without any head change — Sweet Pure CBD is the best CBD seed strain in the Sweet Seeds catalogue for that purpose. The 9-week flowering time and 500g/m² indoor potential mean you're not sacrificing productivity for purity.
Compared to something like a 1:1 THC:CBD strain, Sweet Pure CBD gives you a completely different experience. No psychoactive effects at all. You can harvest, dry, cure, and use the flower in tea, dry herb vaporisers, or homemade extracts without worrying about impairment. That's the whole point of this cultivar.
The honest limitation: if you're after any kind of recreational effect, this isn't your strain. She's purpose-built for CBD, and she does that job exceptionally well — but she won't get you anywhere mentally. That's a feature, not a bug, but it's worth stating plainly.
Growing Sweet Pure CBD indoors? Pair her with a complete grow tent kit to control temperature and humidity through that 9-week flowering window. A decent carbon filter setup keeps the sweet mandarin aroma from announcing your garden to the neighbours. If you're planning to vaporise the harvest, a dry herb vaporiser is the cleanest way to get the most from those CBD-rich trichomes.
Sweet Pure CBD Compared to Other CBD Strains
| Feature | Sweet Pure CBD | Typical 1:1 CBD Strain | CBD Auto Strain |
|---|---|---|---|
| CBD Content | 8–15% | 5–12% | 5–10% |
| THC Content | 0.4–1% | 5–12% | 0.5–5% |
| Psychoactive Effect | None | Mild to moderate | None to mild |
| Flowering Time | 9 weeks (photoperiod) | 8–10 weeks | 8–9 weeks (from seed) |
| Indoor Yield | Up to 500 g/m² | 400–500 g/m² | 300–400 g/m² |
| Light Schedule Control | Yes (12/12 flip) | Yes | No (autoflower) |
The photoperiod nature of Sweet Pure CBD gives you control over vegetative time — you decide when she flowers. Autoflowering CBD strains are simpler but typically yield less and give you less room to train or recover from mistakes. For growers who want maximum CBD output per square metre, the photoperiod format wins.
Frequently Asked Questions
Will Sweet Pure CBD get me high?
No. With THC levels between 0.4% and 1%, Sweet Pure CBD produces no psychoactive effects whatsoever. You'd need THC content above roughly 3–5% to feel anything, and this strain sits well below that threshold.
What does Sweet Pure CBD smell and taste like?
Sweet and fruity with distinct mandarin and cypress notes. The Diesel ancestry adds a faint fuel undertone, but the overall profile is refreshing and pleasant — far more complex than most CBD-dominant strains.
How much CBD can I expect per plant?
At up to 15% CBD and yields of 500g/m² indoors, a single square metre could produce flower containing up to 75,000mg of CBD. Actual numbers depend on your growing conditions, but the genetics are capable of serious output.
Is Sweet Pure CBD suitable for beginners?
Yes. The stabilised genetics and reasonable 9-week flowering time make her forgiving. She's slightly sativa-dominant so she grows tall — use LST to keep her manageable if vertical space is limited.
Can I grow Sweet Pure CBD outdoors?
Absolutely. In good outdoor conditions she can yield up to 600g per plant. She prefers a warm, Mediterranean-style climate but handles temperate European summers well thanks to her open bud structure, which resists mould.
What's the difference between the 3-seed and 5-seed packs?
Same genetics, different quantity. The 3-seed pack suits a single small grow or a test run. The 5-seed pack gives you better selection — pop all five, keep the best performers, and you'll have a clearer picture of the strain's potential.
How should I use the harvested flower?
Dry herb vaporisation is the most efficient method for extracting CBD from flower. You can also brew it as tea (decarboxylate first at 110°C for 40 minutes), or use it to make homemade CBD oil infusions with a carrier fat like coconut oil.
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.