well I know I began flowering my 6 inch sativa at 3 weeks veg (from 2 inch cutting) and after 2 weeks of that, it has grown to 2ft. Sativa's are good inside, if you train and LST them...or want to devote one light to each plant. I prefer the sativa high over the indica..just my liking..and actually..alot of people will agree. From what I've seen, but from what people don't make it out to be, Sativa is the dominant choice of what people like from their high. Sativa is more of a mental medicine, while indica is more of a physical medicine. But based on your needs, equipment and conditions, indica is far easier to grow, than sativa. And yes, sativa CAN with stand 100f weather without any serious side effects..I have seen this first hand, day after day. I believe the plants have a mechanism that lowers its temp by 10f..so even if it is at 100, it is still at around 90 for the plant..plus it also provides itself shade. It's not soo much the temp of the light, but more the temp of the air around the plant. This can all be done without CO2. When asked what their favorite strain at the cannabis cup held in vancouver, most, nearly all who were asked, replied with sativa. I'd say for myself, it mostly depends on what kind of mood your in also...But also, think about taking sativa at day, and indica at night.
One thing, I don't agree completely with the first post. There are many sativa/indica strains that basicly give the sativa like buds and high, yet retain the indica yield and size. And he didn't even state a real description of a hybrid..he basicly only stated minor details of what pure indica or sativa characteristics are like. I'm sorry, but this is already widely known knowledge. And it is obvious that a plant that is more sativa or more indica will have more of the dominant characteristics. Thats just common sense.
Indica- sativa hybrids naturally tend toward the indica side of the family. they usually have controlled height. they dont grow very tall and after forcing flowering, their growth is limited. their side branches are usually not prominent and they can be grown in small spaces. indica grow under 5foot tall plants.
Sativa- indica hybrids tend toward the sativa parentage. they are taller plants, and will double or triple their size if they are forced when they are small. they are usually hard to grow in a sea of green, as the plants demand more space to spread out. sativa grows into 5-15 foot tall plants.
Disclaimer: I am a digital graphics designer, all images are purely digital in nature, meaning from 3d models I have created myself in 3DSmax. Then are later retouched in photoshop to add even more realism. In no way shape or form do I possess or grow the cannabis plant. Any specific details are completely fictional, and are made-up to go with the images. If the images are not made by me then they were found on an internet search engine.