Auto CBD Charlotte’s Web Feminized Seeds
From $75.00
Auto CBD Charlotte’s Web seeds helped put CBD-rich cannabis on the map. With 15–20% CBD, less than 1% THC, and a fast-finishing autoflower lifecycle, this legendary cultivar is valued for its mild effects, reliable performance, and place in modern cannabis history. Proof that not every famous strain built its reputation on THC. 🌿
Nearly every order ships with bonus seeds. One free seed per five purchased — added automatically, no catch. Contact us for bulk order pricing.
Germination Guarantee
Every batch is tested for quality and backed by our germination guarantee.
Fast, Local Shipping
Tracked Australia Post. Express or Standard. Plain, discreet packaging.
4.9⭐ ProductReview Rating
Independent Australian review platform. Read verified customer experiences.
Auto CBD Charlotte’s Web Feminized Seeds
From $75.00
Auto CBD Charlotte’s Web seeds helped put CBD-rich cannabis on the map. With 15–20% CBD, less than 1% THC, and a fast-finishing autoflower lifecycle, this legendary cultivar is valued for its mild effects, reliable performance, and place in modern cannabis history. Proof that not every famous strain built its reputation on THC. 🌿
Nearly every order ships with bonus seeds. One free seed per five purchased — added automatically, no catch. Contact us for bulk order pricing.
Germination Guarantee
Every batch is tested for quality and backed by our germination guarantee.
Fast, Local Shipping
Tracked Australia Post. Express or Standard. Plain, discreet packaging.
4.9⭐ ProductReview Rating
Independent Australian review platform. Read verified customer experiences.
🌿 Auto CBD Charlotte's Web Seeds: The High-CBD Classic on a Fixed Timeline
Auto CBD Charlotte's Web seeds carry the high-CBD, near-zero-THC genetics of the Stanley Brothers' CBD Charlotte's Web on a fixed 63 to 70 day seed-to-harvest timeline that flowers automatically without a light schedule change.
CBD Charlotte's Web was developed by the Stanley Brothers in Colorado, selected from a high-CBD, low-THC line for an unusually high CBD content with THC below 1%. It became the most recognised high-CBD strain in the world and the reference point for the entire high-CBD category. The auto version produces 15 to 20% CBD with THC under 1%, which places it firmly in the hemp range for potency and means it produces none of the intoxicating effect associated with THC-dominant cannabis.
What these seeds are: a high-CBD, non-intoxicating autoflower for growers who want CBD-rich material on a fixed, predictable timeline. The ruderalis cross preserves the core profile, the subtle herbal and pine terpene character and the high-CBD, low-THC ratio, while adding the autoflowering trait: 63 to 70 days from seed to harvest regardless of light schedule, compact at 60 to 100 cm, suitable indoors or out.
What these seeds are not: a high-THC strain. The experience is non-intoxicating at any dose, no altered mental state, no high. If you are after THC-dominant genetics, every other auto in the catalogue is that. This one is specifically for growers who want high-CBD, near-zero-THC material. Browse the full high-CBD range for the alternatives.
What Auto CBD Charlotte's Web seeds do well:
- High-CBD, near-zero-THC profile: 15 to 20% CBD with under 1% THC, the defining characteristic that made these genetics significant, and consistent across the auto version
- Non-intoxicating: no THC-induced altered state, clear-headed regardless of dose
- Fast fixed timeline: 63 to 70 days seed to harvest on any light schedule, one of the faster autos in the catalogue
- Subtle terpene profile: herbal, pine, and earthy, less pungent than THC-dominant autos, which suits lower-profile grows
- Multiple outdoor cycles: the short timeline allows three to four complete outdoor runs per Australian season in warm states
Auto CBD Charlotte's Web Lineage
🌿 Auto CBD Charlotte's Web Seeds Effects and Experience
Non-intoxicating, at any dose. At under 1% THC, Auto CBD Charlotte's Web produces no high and no altered mental state, with no impairment of clear thinking or reaction time regardless of how much is consumed. This is the defining characteristic of the strain and the main reason growers choose it over THC-dominant genetics.
Clear-headed and functional. The experience is a calm, settled, clear-headed quality rather than anything intoxicating, so it suits daytime use and any situation where staying sharp matters. It is also the obvious choice for growers who simply prefer to avoid THC for personal or lifestyle reasons. The character stays consistent at any dose, which is what sets it apart from every THC-dominant strain in the catalogue.
Onset: 15 to 30 minutes, subtle, nothing like the fast onset of THC-dominant autos. The character builds gradually.
Duration: 3 to 5 hours at typical doses, with a long, even, undramatic profile.
Flavour: herbal and fresh pine on the inhale with earthy undertones, clean and subtle on the exhale. Not the sweet, diesel, or skunky profiles that characterise most of the auto catalogue, but pleasant and mild. A proper 2 to 3 week cure improves the herbal-pine complexity.
🌿 Terpene Profile
The herbal-pine character is subtle by design, a clean combination rather than a loud one:
- Myrcene: the earthy, musky base that grounds the profile
- Pinene: the fresh pine note that defines the aroma
- Caryophyllene: a soft peppery, spicy edge
- Linalool: a light floral, herbal note that rounds it out
Subtle does not mean absent. For how these compounds shape aroma, see our cannabis terpenes guide.
🌱 Growing Auto CBD Charlotte's Web Seeds in Australia
(Strictly for ACT residents with a licence or those overseas where cultivation is legal.)
Experience level: accessible. This is among the more forgiving genetics in the auto catalogue, the hemp-influenced ruderalis component adds resilience, and the lower potency ceiling means minor feeding errors do not compound the way they do with high-THC genetics. The one genuine catch is harvest timing: the CBD window is earlier and narrower than THC autos, so this is not a strain you can leave and forget at the end. Our cannabis seedling care guide covers a strong start.
Critical auto rules, before germination:
- Start in the final container: 10 to 15 L indoors, 15 to 20 L outdoors. No transplanting
- Feed at quarter strength from week one: CBD plants are lighter feeders than THC-dominant autos, and excess nitrogen particularly affects the herbal terpene profile
- LST, no topping: gentle LST from week 2 to 3, the fixed timeline does not allow recovery
- Plan the harvest: the CBD window comes early, so be ready to check trichomes from day 56
The CBD harvest window, the critical difference from THC autos: CBD content peaks and then declines as trichomes develop further. For maximum CBD, harvest when trichomes are mostly cloudy with minimal amber, around 5 to 10% amber at most. Waiting for the 15 to 25% amber target appropriate for THC-dominant autos produces lower CBD as the compound breaks down. Check trichomes from day 56 and check every two to three days from there. Our amber trichomes guide covers reading them, with the caveat that the target here is earlier than for THC strains.
Height and structure: compact at 60 to 100 cm, well-branched with dense bud sites for a CBD strain. LST from week 2 to 3 opens the canopy and improves light penetration, and the more open sativa-influenced structure manages airflow well.
Aroma: notably less pungent than THC-dominant autos, the herbal-pine profile staying subtle throughout. Carbon filtration is still recommended indoors from week 5, but the smell is more manageable than most of the catalogue. The drying and curing guide covers the finish.
🏠 Indoor Growing
- Seed to harvest: 63 to 70 days fixed, no light flip required
- Yield: up to 450 g/m² under quality lighting with LST (350 to 400 g/m² realistic for most grows)
- Container: start and finish in 10 to 15 L, no transplanting
- Light: 18/6 recommended, 20/4 marginally better for yield, no 12/12 flip
- Height: 60 to 100 cm, fits standard tents comfortably
- Training: LST from week 2 to 3, more forgiving than high-THC sensitive genetics
- Harvest: mostly cloudy trichomes, 5 to 10% amber maximum, earlier than THC autos for peak CBD
- Cycles: 5 to 6 complete indoor runs a year on the fast timeline
🌿 Outdoor Growing (Australia)
- Timing: ~63 to 70 days from planting, not season-dependent
- Yield: 100 to 200 g per plant, larger containers (15 to 20 L) and full sun push toward the upper end
- Container: 15 to 20 L minimum, started in the final pot, no transplanting
- Site: full sun preferred, 6-plus hours direct light minimum
- Multiple runs: three to four runs per season achievable, with September, November, January, and March plantings viable in warm states. Our Australian climate strain guide covers regional timing
- Best climates: the hemp-influenced ruderalis genetics handle a wide range of Australian conditions, more resilient to temperature variation than high-THC sensitive genetics, and they handle heat well
- Aroma: the subtle herbal-pine profile is less conspicuous than THC-dominant autos in outdoor positions
🧪 Auto CBD Charlotte's Web Seeds EC and Feeding Guide: Soil and Coco
Auto CBD Charlotte's Web is a lighter feeder than THC-dominant autos, the hemp-influenced genetics have lower nutrient requirements and are more sensitive to overfeeding, particularly excess nitrogen in flower. CBD percentage is driven by genetics, not feeding, so pushing higher EC does not raise it, it just risks tip burn and flatter terpenes. Start at quarter strength and build conservatively, and note that the CBD-specific harvest window (mostly cloudy, minimal amber) means the feeding and flush schedule runs slightly shorter than with THC-dominant autos.
All EC values assume quality base nutrients. Australian tap water typically runs 0.2 to 0.5 EC, so factor that into your target and measure after mixing.
📊 EC and pH Target Table: Soil vs Coco
| Phase / Week | Soil EC | Coco EC | Soil pH | Coco pH | Notes |
|---|---|---|---|---|---|
| Weeks 1–2 Seedling |
0.4–0.6 | 0.5–0.8 | 6.2–6.5 | 5.8–6.0 | CBD plants are lighter feeders than THC-dominant autos. Plain water in week 1, start conservative. |
| Weeks 3–4 Early veg / pre-flower |
0.6–1.0 | 0.8–1.2 | 6.0–6.5 | 5.8–6.2 | Light nitrogen. LST in progress. Pre-flowers around day 21. A lower EC ceiling than THC autos throughout the grow. |
| Weeks 4–5 Pre-flower transition |
0.8–1.2 | 1.0–1.4 | 6.0–6.5 | 5.8–6.2 | Reduce nitrogen, introduce bloom nutrients. CBD is genetic, not fed in, so do not try to push it with higher EC. |
| Weeks 5–7 Peak flower |
1.0–1.4 | 1.2–1.6 | 6.0–6.5 | 5.8–6.2 | A lower ceiling than THC-dominant autos. Back off nitrogen from week 5, excess N affects the herbal terpenes and plant health at this EC range. |
| Weeks 8–9 Late flower / ripening |
0.8–1.2 | 1.0–1.4 | 6.0–6.5 | 5.8–6.2 | Begin taper. Check trichomes from day 56. The CBD window approaches, mostly cloudy with minimal amber, so the flush needs to finish before CBD declines. |
| Final 7 days Flush |
0.0–0.4 | 0.0–0.5 | 6.2 | 5.8–6.0 | Plain pH water until runoff EC drops below 0.5. Do not extend the flush past 7 days, harvest before significant amber develops. |
🌱 Soil-Specific Notes
Pre-loaded nutrients: quality potting mix runs 1.0 to 1.5 EC on its own in weeks 1 to 3, above the target for this strain in those weeks, so plain water for the first 1 to 2 weeks in pre-loaded soil. Feed only when runoff EC drops below 0.6.
Runoff monitoring: water to 10 to 20% runoff and measure it. The lower EC ceiling means salt buildup can occur more quickly relative to feed-in, so flush with twice the pot volume of plain pH water when runoff runs more than 0.4 above feed-in.
Watering frequency: every 2 to 3 days in veg, every 1 to 2 days in flower, letting the top 2 to 3 cm dry between waterings.
🥥 Coco-Specific Notes
Feeding frequency: once daily in veg, once to twice daily in flower. The lower EC ceiling means consistent small feeds rather than pushing higher concentrations.
pH in coco: 5.9 to 6.1 at every feed. The herbal-pine profile is sensitive to pH drift, so check every feed.
CalMag in coco: 1 ml/L from week 1 through flush. Standard coco supplementation applies, the CBD genetics do not change this requirement.
Lower EC ceiling: this strain runs noticeably lower EC than THC-dominant autos throughout. Growers who switch from high-THC genetics and apply the same feeding approach consistently overfeed, the peak-flower ceiling here (1.2 to 1.6 in coco) is lower than what most THC autos handle.
📋 EC Troubleshooting
| What You're Seeing | Likely Cause | Action |
|---|---|---|
| Tip burn weeks 1 to 3 | EC too high, CBD plants are lighter feeders, or pre-loaded soil plus added feed | Drop to plain water for one or two waterings, then resume lower. The ceiling for this strain is lower than most of the catalogue. |
| Yellowing before week 7 | Nitrogen deficiency from very light feeding, or pH drift preventing uptake | Check pH first. If correct, increase nitrogen slightly. Natural yellowing from week 7 is normal. |
| Herbal aroma flat or absent | Excess nitrogen, salt buildup, or insufficient cure | Back off nitrogen from week 5, flush properly, cure for 2 to 3 weeks, the herbal-pine character develops in the jar. |
| Runoff EC well above feed-in | Salt buildup, reached more easily with the lower EC ceiling | Flush with twice the pot volume of plain pH water. Resume only when runoff drops below 0.8. |
| Trichomes reaching 15%+ amber before the flush is done | Harvest timing, CBD declines at higher amber levels unlike THC strains | Harvest at 5 to 10% amber even if the flush is shorter than planned. CBD quality takes priority over flush duration here. |
💡 Feeding Key Principles
- Lower EC ceiling throughout: do not apply THC auto feeding rates, the hemp-influenced plant has lower nutrient needs and is more sensitive to excess feeding
- CBD is genetic, not fed in: pushing higher EC does not raise CBD percentage, it just risks tip burn and terpene damage, so feed conservatively and let the genetics work
- Harvest timing overrides flush duration: if trichomes approach 10% amber and the flush is not complete, harvest anyway, the CBD window is earlier and narrower than with THC genetics
- Flush and cure for terpene quality: 7 days flush until runoff drops below 0.5, then 2 to 3 weeks in sealed jars, the herbal-pine character develops during the cure
🗓️ Auto CBD Charlotte's Web Seeds Week-by-Week Grow Guide
Auto CBD Charlotte's Web runs 63 to 70 days, one of the shorter auto timelines in the catalogue. The critical difference from THC-dominant autos is the harvest window: CBD peaks at mostly cloudy trichomes and declines as amber develops, so the timeline below reflects that earlier target.
| Phase / Week | What's Happening | Key Actions | Watch Out For |
|---|---|---|---|
| Weeks 1–2 Seedling |
Taproot establishing, compact manageable structure emerging. More forgiving than high-THC sensitive genetics at this stage. | Plain water or quarter strength. 18/6. 60 to 70% RH. Final container from day one. | Overfeeding, CBD plants are lighter feeders. Do not apply THC auto feeding rates from the start. |
| Weeks 3–4 Early veg / pre-flower |
Steady growth. Pre-flowers around day 21. Well-branched compact structure developing. | Begin LST from week 2 to 3. Build gradually. EC 0.6 to 1.0 soil / 0.8 to 1.2 coco. 50 to 60% RH. | Overfeeding, the lower EC ceiling is easy to exceed if applying rates from THC autos. |
| Weeks 5–7 Early-mid flower |
Dense, resinous bud sites developing. The subtle herbal-pine aroma building from week 5. CBD accumulating in the buds. | Transition to bloom nutrients. EC 1.0 to 1.4 soil / 1.2 to 1.6 coco. Back off nitrogen from week 5. Carbon filter from week 5. Drop RH to 45 to 50%. | Excess nitrogen, the herbal terpenes suffer with N in late flower. Back off N earlier than with THC genetics. |
| Weeks 8–9 Late flower / CBD peak |
Trichomes moving clear to cloudy. CBD approaching peak. The critical harvest-monitoring window, different from THC autos. | Check trichomes from day 56. Drop RH to 40 to 45%. Begin flush at mostly cloudy. Harvest at 5 to 10% amber maximum. | Waiting too long. The CBD window is earlier than THC autos, advancing amber means declining CBD. Check every 2 to 3 days from day 56. |
| Days 63–70 Flush & harvest |
Final ripening, trichomes mostly cloudy with minimal amber, herbal-pine aroma at peak. | Plain pH water for 7 days. Harvest at mostly cloudy, 5 to 10% amber. Slow dry at 15 to 18 °C, 55 to 60% RH for 10 to 14 days. | Going past 10% amber. Unlike THC autos where a later harvest adds body weight, a later harvest here means lower CBD. |
| Post-harvest Cure |
The subtle herbal-pine character develops in the jar. Fresh-dried is decent, after 2 to 3 weeks the complexity sharpens. | Jar at 60 to 65% RH, burp daily for one to two weeks. 2 weeks minimum, 3 weeks for the full herbal-pine character. | Judging it on fresh-dried material, the character develops during the cure, same as every other auto. |
🧠 Jason's Tip: Growing Auto CBD Charlotte's Web
The biggest adjustment switching from THC-dominant autos to this strain is the harvest timing. With THC autos, more amber means more weight, so you develop a habit of waiting. Here that habit works against you, CBD peaks at mostly cloudy trichomes and declines from there. I check trichomes every two to three days from day 56 and harvest the moment I see mostly cloudy with minimal amber. The window is narrower than most growers expect.
Feeding is the other adjustment. CBD plants are lighter feeders than the high-THC autos most growers are used to, and the EC ceiling is lower throughout. I run these at maybe 70% of the EC I would use for a THC auto at the same stage, and that is where they perform best. Pushing harder just gives you tip burn and flatter terpenes.
The cure matters just as much as with any other auto. The herbal-pine character is subtle and it develops in the jar. Fresh-dried it smells decent, but after two to three weeks of cure it is genuinely pleasant: clean herbal, fresh pine, earthy depth. That is what you are growing for.
⚖️ Auto vs Feminised CBD Charlotte's Web: Which Suits You
| Feature | Auto CBD Charlotte's Web (this page) |
CBD Charlotte's Web Feminised |
|---|---|---|
| Type | Autoflower | Photoperiod |
| Seed to harvest | 63–70 days fixed | 9–10 wk flower + veg |
| CBD | 15–20% | 16–22% |
| THC | <1% | <1% |
| Indoor yield | Up to 450 g/m² | Higher with extended veg |
| Height | 60–100 cm | Larger with extended veg |
| Light schedule | Any, no flip required | 12/12 to flower |
| Best for | Fixed timeline, multiple cycles, no light management | Maximum yield, full veg control |
Both deliver the same high-CBD, near-zero-THC profile. Choose Auto CBD Charlotte's Web for a fixed 63 to 70 day timeline, multiple outdoor cycles, and compact height without managing a light flip. Choose the CBD Charlotte's Web Feminised for maximum yield and full veg control.
🎯 Is Auto CBD Charlotte's Web Right for Your Grow?
✅ Auto CBD Charlotte's Web is the right choice if:
- You specifically want high-CBD, near-zero-THC material, 15 to 20% CBD with under 1% THC on a fixed timeline
- Non-intoxicating, clear-headed material is the goal, suited to daytime use and situations where staying sharp matters
- You prefer to avoid THC for personal or lifestyle reasons
- Multiple outdoor cycles per season matter, the timeline allows three to four runs in warm states
- A discreet aroma suits your situation, the herbal-pine profile is less conspicuous than THC-dominant autos
- A compact, manageable grow without light-flip management is what you need
❌ This is not the right strain if:
- You want a psychoactive effect, the under 1% THC produces no high, every other auto in the catalogue is the choice for THC-dominant material
- Maximum yield per cycle is the priority, the photoperiod version with extended veg produces more per plant
- You want maximum CBD expression and can manage a 12/12 flip, the CBD Charlotte's Web Feminised gives you that with full veg control
- You expect the same parameters as your THC-dominant autos, the lower EC ceiling and earlier harvest window are genuine differences
Still comparing options? Our full strain lineup guide covers the range, or browse the high-CBD range, the autoflower range, or the complete cannabis seeds catalogue.
🌿 Auto CBD Charlotte's Web Customer Experiences
Paraphrased from verified customer reviews and grower communications.
⭐⭐⭐⭐⭐ "Grew two indoors in a small tent, harvested at 67 days. The herbal-pine aroma after a 3-week cure is subtle and clean, nothing like the pungent stuff I usually grow. Compact and easy to manage, exactly what I wanted from a CBD auto.", Indoor grower, Australia
⭐⭐⭐⭐⭐ "Did an outdoor run in October, harvested in December. Got 140 g from one plant in a 15 L pot on a north-facing balcony. The smell stayed subtle the whole time, and germination was three out of three. Would run again.", Balcony grower, Australia
❓ Frequently Asked Questions: Auto CBD Charlotte's Web Seeds
What is Auto CBD Charlotte's Web?
Auto CBD Charlotte's Web seeds are an autoflowering feminised version of the Stanley Brothers' high-CBD CBD Charlotte's Web, crossed with ruderalis to flower automatically at 3 to 4 weeks from germination regardless of light cycle. The strain produces 15 to 20% CBD with THC below 1%, which places it firmly in the hemp potency range. Seed to harvest runs 63 to 70 days on a fixed timeline, and the defining characteristic is the near-zero-THC, high-CBD profile, non-intoxicating at any dose.
How long do Auto CBD Charlotte's Web seeds take from seed to harvest?
Approximately 63 to 70 days (9 to 10 weeks) from germination, one of the shorter auto timelines in the catalogue. Harvest at mostly cloudy trichomes with 5 to 10% amber maximum, earlier than the amber targets for THC-dominant autos. CBD peaks before significant amber develops and declines from there, so the window is narrower and earlier than most growers expect coming from THC genetics.
Does Auto CBD Charlotte's Web produce any high?
No. At under 1% THC the strain produces no high and no altered mental state at any dose. If you are after a psychoactive effect, this is not the right strain, every other auto in the catalogue is THC-dominant. This one is specifically for growers who want high-CBD, non-intoxicating material.
What yields can I expect from Auto CBD Charlotte's Web seeds?
Up to 450 g/m² indoors under quality lighting with LST, with 350 to 400 g/m² the realistic expectation for most grows, since CBD hemp genetics generally run slightly lower practical yields than optimised THC autos. Outdoor plants produce 100 to 200 g each, with 15 to 20 L containers and full sun pushing toward the upper end. The fast timeline allows five to six indoor runs a year.
Is Auto CBD Charlotte's Web suitable for first-time growers?
It is one of the more accessible autos in the catalogue, the hemp-influenced ruderalis genetics add resilience to minor cultivation inconsistencies. The standard auto rules still apply (final container, no transplanting, light early feeding), and the main adjustments for anyone coming from THC autos are the lower EC ceiling and the earlier, narrower harvest window, which does take a bit of attention to get right.
How is feeding different from THC-dominant autos?
Two key differences. The EC ceiling is lower throughout, CBD plants are lighter feeders, so applying THC auto targets consistently overfeeds. And back off nitrogen from week 5, earlier than most THC autos, since the herbal terpenes suffer with excess nitrogen in late flower. Harvest timing also differs: aim for mostly cloudy trichomes with 5 to 10% amber maximum, not the 15 to 25% amber target for THC genetics.
Do you ship Auto CBD Charlotte's Web seeds across Australia?
Yes, with fast domestic shipping and discreet packaging, and most orders arrive within a few business days. All seeds are batch-tested with the paper towel method at ~22 °C and stored cold and dry to preserve viability.
2 reviews for Auto CBD Charlotte’s Web Feminized Seeds
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Harvest was smaller than my THC autos, but the quality made up for it. After cure, the smoke was smooth and mild, no throat burn. The effect is pure relaxation — takes away stress and body tension without any head buzz. For me, it’s perfect daytime medicine and great before bed when I don’t want to feel high.