AutoBlackberry Kush LED grow lights review

This weeks AutoBlackberry Kush was the first time ‘Revert’ has grown an auto. He grew AutoBlackberry Kush  under LED grow lights and in coco fibre using an airpot.  The spectacular result shows what to expect from the best auto genetics when they are grown in good conditions.  Here they had around 760W (actual power draw) of LED light and produced a harvest of around 850g of dry cannabis.

The full grow review with pictures is here on the friendly Green Circle growers forum, but you may need to register to see all the pictures.  Nutrients were from Canna.

Comments from Revert

“The reason for the successful grow ? I’m guessing its the powerful LEDs and almost ideal temperatures. It was cold at times yes but usually it was around 24ºC – so almost perfect.”

“What I’m thinking is that because of the early nutrient deficiency the Autoberry Kush had to take longer than usual. Maybe that helped in her development as well in the end. I really didn’t expect anything like that to happen!”

Two traditional LED units

“My first AutoBlackberry Kush looked like a conventional Christmas tree plant and weighed 317g. The second one was really really bushy from the start, she eventually produced 529g of dry bud. I even removed a lot of side branches (20% of them) but she still grew very bushy. This resulted in a lot of bud sites.”

“Of course the raw power of the LED side-lights played a great deal in this too. The buds on the side branches were just as big and solid as the main cola 🙂  My AutoBlackBerry Kush had two LED grow lights above the lights from Bysen and Dutch Passion (360w total). I also made a couple of 200W LED fixtures for side illumination using Cree CXB3070 integrated LEDs.”

“I’ve never grown auto’s before… I started them out on low EC’s (i.e. low concentrations of nutrients). But after I got into trouble with the second AutoBlackberry Kush (nutrient deficiency?)  I raised the EC to about the same level I would give to a traditional photoperiod strain. Then I thinned her down by removing a lot of side branches. I think that helped to bring her back up to speed.”

Avice

“My advice would be not to underfeed this variety, and handle AutoBlackberry Kush as a traditional photoperiod strain. I’ve read somewhere that the more light you can give an auto the more they can eat.”

“That was certainly the case for the larger of the plants. Even at the end the EC (electrical conductivity) of the nutrient run off would always be lower than what I put in. That is usually never the case. I usually need to flush at least once in the middle of a grow to get the run off lower again. Didn’t need to do that this time.”

Harvest

“Harvests were 317 grams from the first AutoBlackberry Kush and 529 grams from the second. Making a grand total of 850 grams or 30 oz.  I NEVER expected it to be this good. I managed 1.12 GPW (grams per watt) with this grow and this is my absolute best ever.”

**

Its nice to see first-time auto growers have so much success with our autofems.  AutoBlackberry Kush is as easy to grow as any of the other Dutch Passion autoflowering varieties.  She grew well under a light cycle of 20 hours of light and 4 hours of darkness.  She typically takes 10-11 weeks from seed to harvest and produces harvests which are much heavier than average.  Most of the AutoBlackberry Kush plants will show blue/purple colourations from the Blueberry genetics as well as plenty of resin and some deep, rich Kush flavours and aromas.