Neville Shoemakers was the man who first released G-13 on the market to the public. It's still available today from a number of sources; some better than others, and crossed with other fine strains as well. Supposedly, Ole Miss now has some weed that tests higher than 37% THC, but the US Government stockpiles weapons grade synthetic shit that's thousands of times stronger. How it's intended to be used is anybody's guess, though.
http://www.seedsman.com/en/origins-of-g13
http://www.memphisflyer.com/memphis/high-times-in-mississippi/Content?oid=1525380
http://www.clarionledger.com/article/20130814/NEWS03/130814021/-High-Times-challenges-Ole-Miss-marijuana-potency-competition
Product Code- G13F (Feminized) ♀
[The Original Neville's Cut- First Pure G13 Seed EVER!!!]
Long Lasting
Pleasant, happy buzz
THE BIGGEST AND HEAVIEST
PLANT CURRENTLY AVAILABLE!
Potency: 4½ out of 5
Taste: Lightly Fragrant and Fruity
G13
INDICA
INDOOR GROWTH
OUTDOOR GROWTH
Finished height
* 18" to 24"
Plant height
4' to 6+'
Yield (g/m²)
SOG
450 to 750 g
Yield
1 to 5+ pounds
Flowering
63 Days
Finish
October
Potency Key: Strains like
AK-47 or White Widow would
have a rating of 4 out of 5
Frost Resistance -
Spring
Good
Frost Resistance -
Fall
Good
* When flowered at a cutting height of 8 inches tall
http://drgreenthumb.com/GreenthumbSeedsProfiles.htm#Profile%20G13
https://www.youtube.com/watch?v=fnKhDL8AL6M