Cannabis cultivation involves several stages. Seed germination is followed by the growth and flowering of the plants, which are harvested later on, when they're ripe.
The bloom phase is the most important stage of your crop. It ends when we finally harvest our plants.
When does the flowering period start?
The bloom period begins with the appearance of the first flowers, about 10-15 days after switching the photoperiod to 12 hours of continuous light followed by 12 hours of complete darkness. Autoflowering strains do not depend on photoperiod to develop flowers, for they automatically start flowering 2 or 3 weeks after seed germination.
How long does the flowering stage take?
Cannabis plants need more or less days to ripe depending on the grown strain. Some varieties bloom very fast - taking less than 2 months to ripe - while others may extend their bloom for more than 3 months.
Indoors, a quick flowering allows us to perform several harvests per year. Outdoors, faster strains avoid the risk of rains and molds in October and November.
Here we list the fastest flowering strains on our catalog, with a theoretical bloom period of 8 weeks.
There are 500 products tagged as Fast flowering genetics
Alchimiaweb.com is happy to present Purple Sunset Auto by Philosopher Seeds, a super aromatic and resinous auto-flowering variety. It is a cross between two of the best US genetics lines at present.
Purple Sunset Auto by Philosopher Seeds, Sunset Sh [...]
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1 seed9.00€
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3 seeds26.00€
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5 seeds42.00€
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25 seeds175.00€
Alchimia Grow Shop is happy to present Zkittlez by Advanced Seeds, a hybrid marijuana plant crosse between Grape Ape x Grapefruit. The result is a variety highly acclaimed by cannabis gourmets, well-known for its high quality flavour with incredible [...]
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1 Seed7.50€
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3 Seeds (Product sold out)17.50€
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10 Seeds55.00€
Alchimiaweb.com presents Gorilla Girl F1 Fast Version by Sweet Seeds, a feminised cannabis variety inheriting US genetics and with a THC level of up to 31%. It's the most powerful strain in this seed bank.
Gorilla Girl F1 Fast Version, a powerful Go [...]
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3 seeds + 1 free seed
26.50€ 21.20€
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5 seeds + 2 free seed
44.00€ 35.20€
Alchimia Grow Shop is glad to present Early Gelato by Philosopher Seeds, the fast version of this powerful American genetics. Now available in our feminised cannabis seeds catalogue.
It is a cross between Early Maroc, a famous variety for its precoc [...]
Alchimia Grow Shop is happy to present Super Early Lemon by Philosopher Seeds, the early version of the feminised Super Lemon Haze.
It is a cross between an Early Maroc male, a mythical variety from this seed bank, and on the other hand a Super Lemo [...]
Alchimia Grow Shop is pleased to present Auto Triping 25 by Mr Hide Seeds, a marijuana variety that reaches THC levels of up to 23%.
Auto Triping 25, extremely easy to cultivate
It has 70/30 Indica Sativa genes. The seed bank has not revealed its p [...]
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1 seed7.50€
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5 seeds29.00€
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25 seeds90.00€
Alchimia Grow Shop is glad to present Auto Gorilla Cream by Mr Hide Seeds, an auto-flowering marijuana for maximum psychoactivity.
It is a cross between Northern Lights (Afghanistan) probably in an Auto version, and the powerful Gorilla Glue #4 ({So [...]
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1 seed8.00€
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5 seeds31.00€
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25 seeds100.00€
Now available at Alchimia Grow Shop Mr Sour-R by Mr Hide Seeds. A variety from its USA strains range, a selection of the best American clones.
this variety is a hybrid between Sour Diesel and Big Bud. It stands out for an incredible and penetrating [...]
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1 seed7.00€
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5 seeds30.00€
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25 seeds94.00€
We are happy to present Early Gorilla by Philosopher Seeds, the Gorilla Glue #4 version of this seed bank, a much appreciated variety for its high resin production and for its strong and relaxing effect. It is now available in our feminised cannabis [...]
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1 seed (Product sold out)8.50€
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3 seeds (Product sold out)23.00€
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5 seeds (Product sold out)36.00€
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25 seeds (Product sold out)150.00€
Dinafem presents here at Alchimiaweb.com Gorilla Auto, the auto-flowering version of the well-known Gorilla Glue cannabis genetics, a variety that retains GG characteristics while increasing its resistance to cold and moisture.
It is a cross between [...]
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1 seed11.00€
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3 seeds (Product sold out)25.00€
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5 seeds (Product sold out)40.00€
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10 seeds (Product sold out)80.00€
Now available in our catalogue at Alchimia Grow Shop, Quick Gorilla by Dinafem, the fast flowering version of Cannabis Gorilla Glue, with a flowering stage of about 51-56 days, that is 10 days less than the original GG.
It is a cross betwe [...]
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1 seed (Product sold out)12.00€
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3 seeds (Product sold out)28.00€
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5 seeds (Product sold out)45.00€
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10 seeds (Product sold out)90.00€
ACE Seeds presents Moroccan Beldia Kif, an authentic pure Moroccan strain sourced from the Rif region, in the north of the country near Ketama and Chefchaouen. This variety is traditionally used to produce the world-famous Moroccan blonde hash and is [...]
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3 seeds26.00€
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5 seeds40.00€
Now available in the Alchimia Grow Shop catalogue Northern Lights cannabis x Big Bud Early Harvest, created by World of Seeds to offer all the best characteristics of this hybrid, but with an even earlier harvest.
A 100% Indica hybrid combining [...]
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3 seeds16.65€
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7 seeds36.75€
Alchimiaweb.com is happy to present Cookies Auto, the auto-flowering Dinafem Girl Scout Cookies version.
It is a cross between Girl Scout Cookies and OG Kush Auto, unifying the GSC aroma and power with the OG speed and robustness.
Dinafem Cookies A [...]
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1 seed (Product sold out)11.00€
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3 seeds (Product sold out)25.00€
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5 seeds (Product sold out)40.00€
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10 seeds (Product sold out)80.00€
Alchimiaweb.com is glad to present Wedding Cake Auto by Philosopher Seeds, the auto-flowering version of this incredible American variety.
It is a cross between Wedding Cake (Animal Mints x Triangle Kush) and a Ruderalis with little dominance, resul [...]
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1 seed9.00€
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3 seeds26.00€
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5 seeds42.00€
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25 seeds175.00€
Alchimia Grow Shop is delighted to present MOB Cake by TH Seeds, a regular marijuana in Limited Edition. It is a powerful Indica dominant hybrid with an exceptionally intense aroma.
It is a cross between Birthday Cake (Bubblegum Kush x Vishnu Kush) [...]
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11 seeds (Product sold out)125.00€