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C4-Matic 420 Fast Buds is a high-performing autoflowering hybrid that delivers dense, trichome-covered buds in just 7–8 weeks, offering a balanced high and impressive resistance to mold and pests.
Let’s be real — not everyone has the time, space or green thumb to babysit finicky plants. You want something that actually works, without the stress of constant monitoring or the fear of losing your crop to mildew or bugs.
Imagine a strain that laughs off humidity spikes, ignores pests, and still packs on frosty buds like it’s nothing. No daily pH checks, no nutrient lockouts, no surprise powdery mildew. Just plant it, feed it, and watch it thrive — even if you’re new to growing.
That’s exactly what you get with C4-Matic. This hybrid combines Skunk, White Widow and Big Bud with Ruderalis for automatic flowering and unmatched hardiness. It grows compact but powerful, perfect for stealth grows or tight spaces, and finishes fast — no waiting months to see results.
C4-Matic stays short and bushy, reaching just 80–110 cm (2.62–3.61 ft), making it ideal for indoor tents or hidden outdoor spots. Its dense structure hides well under cover, and the strong, fruity-skunky aroma? Easy to manage with a simple carbon filter. Whether you're in a small apartment or a remote garden, this plant keeps a low profile without sacrificing yield.
Fast, forgiving, and built for results — here’s how to get the most from your C4-Matic.
Quick overview: autoflowering · FastBuds · 7–8 week cycle · low difficulty · ideal for indoor tents or discreet outdoor setups.
Safe start: Germinate seeds at 22–25 °C with high humidity. Transplant once the radicle is ~1 cm long. For a stronger root foundation, Clonex Mist boosts early development and reduces shock.
Stable seedling: Keep lights 40–50 cm (15.75–19.69 in) above canopy. Water lightly and let soil dry slightly between irrigations. Introduce mild nutrients after week 2. Cannazym improves root health and nutrient uptake in any medium.
Directed growth: Maintain 18–20 hours of light daily. Use LST to spread branches and maximize light exposure. Feed with balanced nutrients, increasing slightly in mid-flower. A well-aerated mix like Autoflower SuperMix supports steady growth without overfeeding.
Efficient flowering: Lower humidity to 40–50% to prevent mold. Ensure good airflow and support heavy colas if needed. No topping — let the Ruderalis genetics do their thing.
Harvest, drying and curing: Harvest when trichomes are mostly milky with some amber for a balanced effect. Flush 7–10 days before harvest. Dry at 18–22 °C and 50–60% RH for 10–14 days, then cure in jars for 2–4 weeks, burping daily.
Yes — it’s one of the easiest autoflowers to grow, with high resistance to stress, pests and mold. Just keep a consistent light schedule and avoid overwatering.
Yes, it has a medium to high odor — fruity, skunky and earthy. Use a carbon filter indoors to stay discreet.
Absolutely. Its mold resistance makes it a solid choice for humid or unpredictable weather, especially in Mediterranean or temperate zones.
Under good LED lighting, expect 450–550 g/m² (1.6–1.9 oz/ft²) in just 7–8 weeks — impressive for an auto.
No — avoid topping, FIM or aggressive pruning. Use low-stress training (LST) instead to shape the plant without slowing growth.
I grew C4-Matic in my balcony tent last summer, and it was a no-brainer. I didn’t touch it for two weeks while traveling — came back to a healthy, thriving plant. No pests, no mold, just dense, frosty buds. I used LST early on to spread the canopy, and I fed it lightly with a simple coco mix. The high is smooth — uplifting at first, then gently relaxing. Perfect for unwinding after work without knocking me out. I keep a jar curing right now, and the aroma? Pure citrus with a skunky punch. If you want a strain that grows itself and still delivers top-tier quality, this is it.
| Type: | Autoflowering | |
| Banks: | FastBuds | |
| Genetics: | White Widow x Skunk x Big Bud x Ruderalis | |
| Indoor production: | 450-550 gr/m2 | |
| Outdoor production: | 50-350 gr / plant | |
| Outdoor height: | 1m | |
| Crop cycle since germination: | 8 weeks | |
| THC: | 19% | |
| CBD: | 1.1% |
Yes, the shipment is 100% discreet, no one will know what you have bought, also the sender is SITE OF SHOPS ONLINE.
Yes, we ship to almost every country in the world although you need to know the current legislation in your country to make sure that you do not break any regulations with the germination of the seeds.
UK: 3-4 days (express)
USA: 4-5 days (express)
Australia: 4-5 days (express)
Japan: 4-5 days (express)
Canada: 4-5 days (express)
South Africa: 4-5 days (express)
New Zealand: 5-7 days (express)
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The customer must be informed about the laws of their country regarding seeds or other products that may be purchased on our website, the possession of which may constitute a criminal offence in the country of receipt.
We cannot be made responsible for the wrong use that some people decide to give to the seeds, so please don't act against your national laws.
Due to problems with customs you can check here for restrictions to certain countries.
We accept the following payment methods: Bank transfer, Cryptocurrencies, cash, credit and debit cards and cash on delivery (Spain, Belgium, France, Italy, Portugal).
You can change the currency on the top right to know the price of the products in your local currency and of course pay this way.
In 24/48 hours we will ship your order.
If you live in a country where the cultivation of cannabis is legal and you decide to plant the seeds, it is good that you know that all the seeds that we commercialize have germination guarantee.
If you germinate with the method of paper napkins and you have followed all the steps that we indicate here, you will only have to return us the seeds not germinated in their original packaging and when we receive them we will proceed to the change.
Then we take care of requesting the return to the seed bank, we do not transfer this responsibility and time to our customers.
If you receive a broken product due to transport, you have to notify us within 24 hours for insurance coverage, always contact us as soon as possible and we will fix the problem!
Among all those who comment or send us your questions, there will be a monthly raffle for a €50 voucher for your purchases at Pevgrow. What are you waiting for? Write us and participate!
How well will this C4 do in a hot outdoor summer climate like Dallas TX? (100° days/80° nights)
Hello, in principle watering it when necessary should not be any problem, greetings.