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Sweet Seeds +Speed Auto® is a lightning-fast autoflowering feminized cannabis strain that delivers full harvests in just 7 weeks from germination, offering a balanced high and rich, original flavor profile perfect for both day and night use.
Most autoflowers promise speed, but still keep you waiting 8, 9, even 10 weeks. If you're looking for a quick turnaround without sacrificing quality, that delay can feel like an eternity—especially when you're eager to taste your harvest or share it with friends.
Spending extra weeks in the grow room means higher electricity bills, more risk of pests or mold, and delayed gratification. And if your plant doesn’t deliver on flavor or potency, that time feels wasted. Many fast strains cut corners—weak effects, bland taste, or low yields—forcing you to choose between speed and quality. But what if you didn’t have to?
Sweet Seeds +Speed Auto® solves the speed-vs-quality dilemma. Bred from Critical Mass Auto and Speed Devil #2 Auto®, this 3rd-generation autoflower hits harvest in just 7 weeks with impressive yields, a complex sweet-cheesy-skunk aroma, and a balanced high that’s creative, uplifting, and gently relaxing. It’s the rare strain that’s truly fast without compromise—perfect for quick indoor cycles or outdoor stealth grows.
Compact and efficient, +Speed Auto® thrives in small spaces. At 50–90 cm (1.76–2.95 ft), it fits perfectly under most grow lights. With proper LST and defoliation, you’ll see dense, resin-coated colas forming by week 5. Indoors, expect 350–500 g/m² (12.35–17.64 oz/ft²) under optimal conditions—especially when supported with quality nutrients from Kit Top Grow Box Bio Plagron.
Outdoors, this strain shines in sunny, Mediterranean climates. It handles mild stress well and produces 30–150 g/plant (1.06–5.29 oz/plant), depending on sunlight and soil. Its fast cycle lets you fit multiple harvests in a single season. Just make sure to protect it from prolonged humidity to avoid mold—Bio Bloom BioBizz can help boost resilience and flower density.
Quick overview: Autoflowering · Sweet Seeds · 7-week cycle · Low difficulty · Ideal for indoor or outdoor grows.
Directed growth: 18–20h light cycle · Compact structure · Early final pot.
Efficient flowering: Week 4–8 · RH 40–50% · Boost resin and density.
Harvest and refinement: 7 weeks · Dry slow, cure long.
Yes, but be cautious. This strain has moderate resistance to mold. Ensure good airflow, avoid overcrowding, and consider using organic fungicides as a preventive measure.
No. Autoflowers have a fixed life cycle—aggressive pruning can stress the plant and reduce yields. Stick to LST and light defoliation only.
In a tent of that size with 1–4 plants, you can expect 100–200 g total, depending on setup, light intensity, and care.
Yes, it develops a noticeable skunky-cheesy aroma in mid-flower. Use a carbon filter if growing discreetly.
It’s versatile: vaporize for clarity, roll a joint for social vibes, or use in edibles for longer-lasting relaxation.
I’ve grown dozens of autoflowers, but +Speed Auto® stands out for its reliability and flavor. I ran four plants under a 200W LED in a 60x60 cm tent—planted in 20L pots with Light Mix and BioTabs. I used LST early and light defoliation, nothing aggressive. By week 5, the buds were already dense and glistening. I harvested at day 49—exactly 7 weeks—and after a 3-week cure, the smoke was smooth, uplifting, and subtly relaxing. The aroma? Sweet lemon with a funky cheese twist—unexpected but addictive. I’ve shared it at barbecues and solo sessions, and it always gets compliments. My only tip: don’t rush the cure. Let it breathe, and the flavor deepens beautifully.
| Type: | Autoflowering | |
| Banks: | Sweet Seeds | |
| Genetics: | Critical Mass x Speed Devil #2 Auto | |
| Phenotype: | Indica / Sativa Hybrid | |
| Indoor production: | 350-500 gr/m2 | |
| Outdoor production: | 30-150 gr/plant | |
| Indoor height: | 50-90 cm | |
| Outdoor height: | 50-90 cm | |
| Crop cycle since germination: | 9 weeks | |
| THC: | 18% | |
| CBD: | 0.6% |
Almost all seeds germinated well and grow healthy. Delivery was fast and customer service worked great. I will order these seeds again some time in the future. But first let´s see how they turn out
Indoor cultivation scrog 20 pots. I used lights at the led 600 visperia -marshydro 600 at the led I collected 1000 g ,two fans are used and 4timer on 19 hours of lights, fan works on two separate shekels every hour the fans activate alternately ,with a ph of 6.3 test for watering every 2 days for 68 days of veg and 72 days of flowering for a 1000g harvest. I had the same kind of results with white widow and red rouster a charcoal air exchanger to clean the air and a dehumidifier is used if too humid (58/64% relative humidity)
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!
My first time buying from Pevgrow and I really liked it because I got the seeds I was looking for and I got a free gift and fast delivery.