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Power Plant Grow Review. Grown from seed to harvest under 12/12 light


power plant, fast, strong and big

Power Plant remains one of Dutch Passions most appreciated genetic contributions in recent decades.  This weeks blog is about a customer that grew his Power Plants from seed to harvest under a 12/12 light system in 3.5 litre pots in just 85 days averaging around 50g harvest per plant.  

Dutch Passion Power Plant has been a best-seller since the 1990’s, she’s a South African sativa with heavy yields and fast growth, but she is probably most appreciated for the hard-hitting knockout smoke.  As one of our original legendary varieties we offer this variety in both regular and feminized seeds.  The following comments and pictures in the grow diary come from Automaster, his original diary is here.

power plant

Above and below.  Power Plant grown under a 12/12 light cycle, a fast way to grow.

big blooms


My Regular Power Plant seeds were put into flower (12 hours light/12  hours darkness).  They were germinated in their final 3.5litre containers of organic soil.  This means that 4 Power Plants can go into a 15 litre pot footprint, a very efficient use of soil."

 "This growing method (grown from start to finish under 12/12 lighting) delivers superb efficiency saving 21 days of vegetive growth under 18/6 veg light and reducing water loss through evaporation. I used half the usual water with this method, and therefore less nutrient. The 3.5 litre pots are much easier to rotate 180 degree's daily and move around than larger containers. Due to the 3.5 litre container size I flushed the plants for 2 days with pure water every 10 days. This helped to keep any un-used salts/minerals down to a minimum. "

 "I grew from regular seed and got 54% male plants. The EC (electrical conductivity) of feed was kept low since pure sativas are generally light feeders. Starting EC was 0.2, and final EC was 0.6, pK 13/14 was substituted for nutrients for the last 4wks of flower. Canna flower boost was also used @1ml/ltr to facilitate pK uptake into the flowers. Rootball temperature had a minimum 21ºC and a maximum of  28ºC. I find that sativa dominant varieties are not troubled by higher temperatures. "


uniform plants


good sized blooms

long main cola


"70 days after germination around 80% of trichomes where very milky. So i could have harvested them at that point. However I gave them 85 days until the trichomes were 30% amber. Starting the grow under 12/12 allows you to start your next crop of seedlings in the same tent as the maturing plants.  It saves time and electricity.  This fast grow system allows you to harvest 4-5 times in 365 days using a 12/12 regime."


"Sativa dominant varieties seem to like this grow method, I had 4 plants which reached 1.2m tall but most were 80-90cm.  The trim waste all went into one bag ! Its a very low waste growing method since there isn’t a lot left over !  12/12 from seed is a great way of controlling the ‘sativa stretch’ height issues.  This stretch can be 2metres+ in 15 litre containers in normal grow situations."

"The smoke is legendary, and I now see why. It’s very smooth with THC power above 15%. Roses and old school flavors abound. It’s a very pleasant taste, and vape/combustion aroma from the reg Power Plant is superb on the nose.  Very, very crispy dried flowers (RH62%) with trichome load delivered by Power Plant.  A super sativa qualifier and no doubt."

resin covered main bloom

several finished plants



Congratulations to AutoMaster for showing us the unusual method of growing under 12/12 light conditions from start to end.  Its a fast way to grow that can allow growers to achieve more grow cycles without compromising quality.  

ps find lots more about Dutch Passion and our varieties on Facebook https://www.facebook.com/dutch.passion


January 30th 2015
Easy Indoor
Grow Guide


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Recent comments (8)

On 30 -01-2015 at 10:21 u Mr Jorilla ganjamoto wrote:
salutations... Very nice looking buds... Great work....

On 02 -02-2015 at 10:44 u Phrtao wrote:
This is how weed is grown in countries like Jamaica. They just plant at any time of year and the day length stays at pretty much 12/12 (varies only slightly because they are near the equator). If you are in Europe and have a greenhouse all you need is a little heating to get through the winter. I would suggest using autos in summer months since they will flower in longer days and give a better yield.

On 28 -08-2017 at 22:08 u VASILEIOS vasileiadis wrote:
the post was excellent but i wanted to clarify that the experiment was made with a regular seed and not with autoflowering seed.So i would like to ask you if you have any one who grow an autoflowering seed and not regular since regular seed is different.Waiting for your reply thanks in advance

On 29 -08-2017 at 09:50 u Eddy wrote:
VASILIOS, 28th August. This grow was done with photoperiod seeds, NOT autoflower seeds. The seeds were regular photoperiod seeds :-)

On 25 -10-2017 at 20:07 u Kevin wrote:
Ime startng a 12 12 grow from seed. It's autoflowr. How do I initiate flowerng

On 27 -10-2017 at 09:02 u Eddy wrote:
Kevin, 25th October 2017. If you are growing an autoflower it will start flowering automatically around 4 weeks after germination, irrespective of the light cycle. Good luck!

On 27 -10-2017 at 23:23 u Michael wrote:
What type of light did you use and what was your dry yield?

On 30 -10-2017 at 10:49 u Eddy wrote:
Michael, 27th October 2017. LED grow lights were used from start to finish, and the average harvest was around 50g per plant, with around a dozen plants by the look if it :-)

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Dutch Passion advise their customers to reassure themselves of local applicable laws and regulations before germination. Dutch Passion cannot be held responsible for the actions of those who act against laws and regulations that apply in their locality. Cannabis seeds should be kept as collectible souvenirs by anyone in an area where cultivation of cannabis is not legal.