We’re winding down this particular part of the Pro-Grow 260 Journal, There will be more challenges thrown at the 260 in the future. I’m curious to see how it fares up against it’s updated sibling the 14 spectra Pro-Grow 180. Hmmm…

Autoflower harvest - Northern Light Auto

Northern Light Auto #4 Harvested! Dense, heavy, sticky and very smelly!

Grow guide for marijuana beginners.

For now, the PG-260 will continue vegging out our seedlings & cuttings, until another crop of autos comes along, which may be soon. We have 4 seedlings (10 days old) from seeds we got off of Northern Light Auto #1, Will they auto? Check back in about 2 weeks (Christmas week), as it is usually around week 3 from seed that the autoflower trait kicks in and we’ll know for sure!

Simply put, this grow was/is a success! In the first 128 days we’ve sprouted & rooted countless seedlings & cuttings, as well as bloomed out 3 autoflower plants from seed to buds in under 90 days. Then we went ahead and bloomed 2 more Northern Light Autoflowers* just because. And this is in the Veg-Tent, you should see Pro-Grow 400 in the Bloom-Room 😉

Blue Mystic Auto: 48 grams,
Northern Light Autoflower #3: 60 grams
Northern Light Autoflower #1: 34 grams,
Total: 142 grams (just over 5 ounces)

*Northern Light Autos, second round (Unofficial):
#4, just under one ounce.
#5, 19 grams

Autoflowering under Hydroponics Hut’s Pro-Grow 260 has produced some beautiful buds

In short:
We spent 90+ days following a live, medical marijuana grow using the Pro-Grow 260 LED grow light, exclusively from Hydroponics Hut.

Our chosen strains were: Blue Mystic Autoflower & Blue Mystic regular, Northern Light Autoflower, Blackberry, & various seedlings. We tested to see if I can effectively “kill two birds with one stone”, by using the Pro Grow 260 for vegging cuttings & seedlings to maturity, as well as blooming out a few autoflower plants at the same time, all in a 4′ x 2′ “closet” grow.

Overall, for grow area you could legitimately do:

Optimal height(s) from lamp to canopy: Bloom 18″ – 20″ and Sprouts/Veg 24″ –  28″. [The optimal distance to the lamp also varies by strain, I had most in the “prime” zone, but some liked it closer, and for a few I had to really raise the lamp to get the sprouts to stretch up taller and grow out their node spacing beyond tight 1 cm increments.

Sprouts/Fresh Cuttings:  Up to 4′ x 4′, with the Vegetation Only stetting.
Seedlings/Cuttings: Up to 5′ x 5′ with Dual Spectrum setting.
Bloom: Easily 4′ x 4′, and up to 5′ x 5′ with a little plant rotation & shuffling.

Our Blooming plant’s heights varied from the shortest at  8″ tall, to the tallest at about 30+”, both Northern Light Autos. The vegged plants up to about 14″. Light penetration is a non issue unless you grow some tall trees, anything up to 3′ tall should do just fine with a little care.

There is still a great deal of confusion and bickering within the LED grow light industry, and though the dust is settling, I feel it’s important to offer my experiences to help people steer clear of potential pitfalls. If you have any questions… Just ask!

The last 2 branches on Northern Light Auto #5

With a majority of trichomes amber, we cut the last of Northern Light Auto #5

I am not employed by Hydroponics Hut. I’m simply someone who took some time to learn (the hard way, sometimes) what to look for in LED grow light technology, and have been very satisfied with the performance and innovation of their grow lights and note that their customer support is tops in the business!