Photoperiod dependent cannabis varieties are those that require a change in the amount of light they receive to enter their flowering cycle and produce buds.
Cannabis plants typically require a 12h light and 12h darkness period to enter the flowering cycle. If the plant receives more than 12h of light, it remains in the vegetative cycle and does not start producing buds.
These strains are popular among cannabis cultivators due to their ability to produce higher-yielding cultivation than auto-flowering seeds, although the growing cycle is longer. The plants tend to acquire a larger size.
The photoperiod dependent seeds were the only seeds available on the market until the emergence of the auto-flowering seeds. Generally, cultivators choose photoperiod dependent strains because they offer greater control over the growth cycle and a higher potential yield.
There are both feminised and regular photoperiod dependent cannabis seeds.
Philosopher Seeds
43.00€
Ethos Genetics
From 70.00€
Alchimia is glad to present Blue Zushi by Growers Choice, a cannabis strain with complex terpenes and smooth smoke. It offers berries, caramel or even cheese and m [...]
Alchimia is happy to present Fat Bastard by Blimburn Seeds, an easy-to-grow cannabis strain that gives off a fruity, skunky aroma. It is character [...]
Alchimia is delighted to present C.Banana by Philosopher Seeds, a variety in a limited edition based on the original Banana OG, a plant with a high THC con [...]
Alchimia Grow Shop is pleased to present Bubble Gum Fast by 00 Seeds Bank, the ultra-fast flowering version of this famous and highly prized genet [...]
White Widow from 00 Seeds Bank is a feminised version of this legendary cannabis variety that since the 80s has been one of the most popular strains with growers a [...]
Alchimia is glad to present Imperium X by Anesia Seeds, one of the cannabis varieties with the highest THC content on the market, [...]
Alchimia is happy to present Cherry Mac Muffin by Growers Choice, a cannabis genetics with cherry terpene, Zkittlez and Gelato sweetness. It offers a high THC cont [...]
We present Tropicanna Poison F1 Fast Version by Sweet Seeds, a super-fast variety of reddish colours. It is already available in our feminised cannabis seeds catal [...]
This marijuana strain developed by the team of Barney's Farm is a strange mix that comes from two famous genetics: the Critical Kush is a crossing between the highly desired [...]
Alchimia is pleased to present Gorilla Fast by 00 Seeds Bank, the fast version of the famous [...]
Alchimiaweb.com is happy to present Cherry Gar-see-yaa by Ethos Genetics, a feminised marijuana extremely resinous with purple and dark to [...]
Barney's Farm presents here Mimosa x Orange Punch, a feminised cannabis strain that offers a powerful fruity aroma. This variety is now available [...]
Alchimia is delighted to present Critical Mass by Advanced Seeds, an early and easy to cultivate strain with a high production. It offers very sweet terpenes and p [...]
Now available at Alchimia, feminised seeds of B-45, a collaboration between Silent Seeds and the great Booba, a renowned rapper on the French scen [...]
Alchimia is thrilled to present White Truffle in limited edition by Growers Choice. This US cannabis, with a high THC content and abundant yields, is the encounter between [...]
Barney's Farm presents here Moby Dick, a well-known marijuana strain due to its numerous qualities both in terms of cultivation and taste [...]
Alchimia is pleased to present Permanent Marker by Blimburn Seeds, a cannabis hybrid with sweet and floral flavours that combines the energising Sativa and Indica [...]
00 Seeds presents here Sweet Critical CBD, a cannabis strain with a THC content of 0.3% and a CBD level of 18-22%. This variety is now available in our feminised c [...]
Alchimia is delighted to present Cherrytini S1, the feminised version of Cherrytini, one of Perfect Tree's first regular crosses. It is the result of a top hybridisation [...]
We are happy to present Sweet Seeds Red Hot Cookies, a Sativa dominant hybrid with made in US genetics. This variety is now available in our feminised cannabis see [...]
Alchimia is happy to present Gorilla by 00 Seeds, a well-known marijuana plant highly appreciated by Indica plant lovers. It is one of the most appreciated genetics within this see [...]
Alchimia is happy to present Orange Creampop by Humboldt Seeds Company, a variety offering spectacular yields and easy cultivation, as well as an unparalleled pote [...]
Alchimia is pleased to present Critical Mass Fast, a fast version of the Critical Mass by Advanced Seeds [...]
Alchimia is happy to present Hardcore Gelato by Philosopher Seeds, a genetics with a distinguished and tropical bouquet, with creamy and sweet Kushy nuances remini [...]
Alchimia is pleased to present Critical Widow by Philosopher Seeds, one of the seeds most requested by our customers. After countless requests, the seedbank has in [...]
Barney's Farm presents Blue Gelato 41, an exciting new cannabis hybrid with a psychedelic and positive effect accompanied by an intense an [...]
Alchimia is pleased to present Black Muffin F1 Fast Version by Sweet Seeds, a super-fast cannabis strain that produces purple buds and gives off a [...]
Alchimia is delighted to present Red Banana Berry by Growers Choice, a variety noted for a strong red colouring, a high THC level up to 27%-30% an [...]
Alchimia is delighted to present Skunk #1 by Sensi Seeds, a strain that has amazed cannabis lovers for more than a quarter of a century and changed cannabis culture [...]
Alchimiaweb.com presents Gorilla Zkittlez from Barney's Farm, a new feminised variety combining two champions from the West Coast of the USA. [...]
Alchimia is pleased to present Granny Candy by Humboldt Seeds, a potent and resinous variety with a delicious fruity aroma. This variety is now available in our fe [...]
Alchimia is glad to present Apple Fritter by Philosopher Seeds, a feminised seed offered in Limited Edition. A very resinous cannabis strain with [...]
