🌿 CBD Charlotte's Web Seeds: The Original High-CBD Strain

CBD Charlotte's Web feminised seeds carry the Stanley Brothers' original high-CBD genetics: 16 to 22% CBD with THC below 1%, the most globally recognised high-CBD strain there is, in photoperiod format with full control over veg time, plant size, and yield.

CBD Charlotte's Web was developed in Colorado by the Stanley Brothers, selectively bred for an unusual cannabinoid ratio: very high CBD with near-zero THC. It became the strain that brought high-CBD cannabis to mainstream attention worldwide, and it remains the reference point for the entire high-CBD category.

Why CBD Charlotte's Web seeds exist: most cannabis is grown for THC. These seeds are grown for the opposite, the maximum CBD with essentially no THC and no psychoactive effect at all. Growers choose this strain specifically because they want CBD-rich material without any intoxication, and that is what the genetics consistently deliver.

Photoperiod over auto: full control over plant development. Veg as long as you need before triggering flower with a 12/12 flip, shape the plant with SCROG or training, and harvest up to 600 g/m² indoors or 300 to 500 g/plant outdoors. For maximum CBD production per cycle, the photoperiod delivers what the auto cannot.

🌿 CBD Charlotte's Web Seeds Effects and Experience

Non-psychoactive at any dose: at below 1% THC, CBD Charlotte's Web produces no high regardless of how much you consume or how long you veg the plant. No altered mental state, no impairment. This is the defining characteristic of the strain and the reason growers seek it out over every other option in the catalogue.

What the experience is like: a clear-headed, non-intoxicating calm, a mild sense of physical settledness without any mental alteration. Because there is no high and no impairment, it fits into daytime use in a way THC-dominant strains do not. People choose it precisely because they want the character of CBD-rich cannabis and none of the intoxication.

Onset: 15 to 30 minutes, gradual and subtle rather than the fast onset of THC-dominant strains. The experience builds slowly and lasts 3 to 5 hours at typical amounts.

Flavour: clean fresh pine on the inhale, woody and earthy on the exhale, with a light citrus brightness. Subtle by cannabis standards and less pungent than most of the catalogue. With a 2 to 3 week cure the pine and woody complexity sharpens, so do not assess the terpene quality from fresh-dried material.

🌲 Terpene Profile

The clean, piney character comes from a pinene-led profile, distinct from the heavy earthy and sweet profiles across the THC-dominant catalogue:

• Pinene (dominant): the fresh pine note that leads the aroma and keeps the character bright and clean
• Myrcene: an earthy base that adds depth underneath the pine
• Caryophyllene: a subtle peppery note, and the one terpene that binds directly to CB2 receptors
• Limonene: the light citrus brightness on the finish

For how these compounds shape flavour and aroma, see our cannabis terpenes guide.

🌱 Growing CBD Charlotte's Web Seeds in Australia

(Strictly for ACT residents with a licence or those overseas where cultivation is legal.)

Experience level: Intermediate. The hemp-influenced genetics are reasonably forgiving and more resilient than sensitive THC-dominant photoperiods. The two things to plan for are height (120 to 180 cm needs training indoors) and the CBD-specific harvest window, which is earlier and narrower than the amber windows used for THC strains. For the early weeks, our cannabis seedling care guide covers getting a plant established well.

Veg and training: grow under 18/6 until the plant is the size you want to flower. 4 to 6 weeks suits most indoor setups, while 6 to 8 weeks with SCROG produces the canopy needed to approach the 600 g/m² range. At 120 to 180 cm, training is necessary indoors: SCROG is the most effective method (set the screen at 40 to 50 cm and flip when it is 60 to 70% full), with topping at node 4 to 5 and LST also working well. The open, sativa-influenced structure fills a screen evenly.

The CBD harvest window (the key difference from THC strains): CBD content peaks when trichomes are mostly cloudy and declines as amber develops. For maximum CBD, harvest at mostly cloudy with 5 to 10% amber at most. Waiting for the 20 to 30% amber typical of THC photoperiods degrades CBD content noticeably. Check trichomes every 2 to 3 days from week 7. Our amber trichomes guide covers reading them, and the same rule applies outdoors: do not wait for autumn weather to "ripen" the plant by developing more amber, since that is CBD degrading, not improving.

Feeding: CBD Charlotte's Web is a lighter feeder than THC-dominant photoperiods at every phase, so do not apply THC feeding targets or you will overfeed and get tip burn. CBD percentage is genetic, not feeding-driven, so a higher EC does not raise CBD content, it just risks terpene damage. Start at quarter strength in seedling, build conservatively (a useful rule of thumb is roughly 70% of the EC you would run for a THC photoperiod at the same stage), and back off nitrogen from week 4 of flower to protect the clean pine profile. A 7 day flush is enough, and harvest timing takes priority over completing the flush. Our drying and curing guide covers the finish.

🏠 Indoor Growing

• Veg time: 4 to 8 weeks under 18/6 depending on target size and training
• Flower time: 8 to 9 weeks from the 12/12 flip
• Yield: up to 600 g/m² with SCROG and extended veg, or 350 to 450 g/m² for standard grows without SCROG
• Height: 120 to 180 cm, so plan for a 180 cm tent minimum (200 cm preferred) and train with SCROG or topping
• Harvest: mostly cloudy trichomes, 5 to 10% amber maximum, earlier than THC photoperiods
• Aroma: pine and woody from flower week 5, subtle compared to most of the catalogue, though carbon filtration is still worth running

🌿 Outdoor Growing (Australia)

• Planting: October to November for a full Australian summer veg
• Harvest: March to April as days shorten and flowering triggers naturally
• Yield: 300 to 500 g/plant in good conditions, with full sun and large containers (30 to 50 L) pushing toward the upper end
• Height: 150 to 200 cm or more with a full season, so stake from week 4 of flower for cola support
• Climate: handles warm Australian conditions well across most states, and the open structure manages airflow and moisture better than dense indica genetics. Our Australian climate strain guide breaks this down by region
• Harvest: the same CBD rule applies, mostly cloudy with minimal amber, regardless of how the autumn weather is tracking

⚖️ CBD Charlotte's Web vs Auto: Which Format Suits You

Choose this photoperiod for the maximum CBD volume per cycle and full control over plant development. Choose the Auto CBD Charlotte's Web for a fixed timeline, compact height, and multiple outdoor cycles without a light flip. The CBD percentage is comparable between the two, since the genetics set the ratio: the photoperiod's advantage is total volume, not percentage.

🎯 Is CBD Charlotte's Web Feminised Right for Your Grow?

Browse the feminised photoperiod range or the complete cannabis seeds catalogue.

❓ Frequently Asked Questions: CBD Charlotte's Web Seeds

What are CBD Charlotte's Web seeds?

CBD Charlotte's Web seeds are feminised photoperiod seeds carrying the Stanley Brothers' original high-CBD genetics, the strain that brought high-CBD cannabis to worldwide attention and remains the benchmark for the category. They produce 16 to 22% CBD with THC below 1%, which makes the strain non-psychoactive at any dose. It is grown by people who specifically want high-CBD, near-zero-THC material without any intoxication.

How much CBD do they produce?

16 to 22% CBD with below 1% THC. The percentage is set by the genetics and is consistent across well-executed grows. What the photoperiod format adds over the auto is total production volume, up to 600 g/m² indoors with SCROG versus the auto's 450 g/m². For CBD-rich material in volume, the photoperiod is the version to grow.

Does it produce any high?

No. At below 1% THC, CBD Charlotte's Web produces no psychoactive effect at any dose. This is categorical rather than a subtle difference from THC-dominant strains. If a high is what you are after, every other strain in the catalogue suits that, since these genetics exist for growers who want the opposite.

How long does a grow take?

4 to 8 weeks of veg under 18/6, then 8 to 9 weeks of flower from the 12/12 flip, so 12 to 17 weeks total depending on veg length. Longer veg means a larger plant and a higher yield, and for SCROG targeting the upper range, 6 to 8 weeks of veg is the practical minimum. If a fixed timeline suits you better, the Auto CBD Charlotte's Web runs 63 to 70 days with no flip.

When should I harvest for peak CBD?

At mostly cloudy trichomes with 5 to 10% amber, earlier than most THC photoperiods. CBD content peaks at this point and then declines as more amber develops, which is the single most important difference between growing CBD and THC strains. Check trichomes every 2 to 3 days from week 7 and harvest as soon as the target is reached. Waiting for 20 to 30% amber means lower CBD.

Is it suitable for beginners?

Intermediate. The hemp-influenced genetics are more forgiving than sensitive THC photoperiods, but the specific adjustments are the lower EC ceiling throughout, the earlier harvest window, and the height management for a 120 to 180 cm plant. Growers new to photoperiods should expect a learning curve, and the Auto CBD Charlotte's Web is more accessible as a first CBD grow.

What is the terpene profile?

Pinene-dominant: clean fresh pine leads, with woody depth, earthy undertones, and a subtle citrus brightness from limonene. It is genuinely distinct from the heavy earthy, diesel, and sweet-fruit profiles across most of the catalogue, subtle and pleasant rather than pungent. The full pine and woody complexity develops over a 2 to 3 week cure, so assess after cure rather than from fresh-dried material.