Yup they do exactly that..seedling to flower, with a very short veg approx 2wks veg, they show sex around 17days for males and 21days for females..
I grow LR2s regularly to fill out the grow space, and they grow very well..
for example i just harvested one of mine and it yielded just under 3oz wet...
They generally need a few more days flowering than the 60 days that joint dr suggests, i usually take mine out to around 75+days, to let the buds mature and the trichomes to be around 70% cloudy and 30% Amber, for a more couchlock style high.
Lots of people rag on LR's real bad, as being a waste of space in the grow chamber for a minimal buzz..
Ok so lowryder high isnt hella long, but it can be up there with alot of other strains..
I was very suprised with the effects off these lil dwarf autos...and they still knock me on my ass every now and then..
Theyre a great introduction to growing bud, theyre pretty hardy lil plants so long as you dont go crazy with the nutes, they dont like high fertiliser levels..
They respond well to molasses and get very frosty with trichs towards the end of flowering.
I never use pots bigger than 2-3L and they do just fine, approx 16-18" in full flower.
Obviously the better your growing environment the better the bud you'll get...
Get your grow area sorted and youll be on the path of good green.
Outdoor growing theyll do well too, so long as you choose the correct time to plant them and let them finish..You know what weather patterns you got coming in the next few months, if its gonna be fine ie no frosts and very low temps, or you live in an equatorial region you can get perpetual grows all year....also outdoors theyll take another month or so to finish..
If'n ya wanna see some of mine, check out my profile,and the LR threads i have contributed to , there should be some better LR info on there.