No way to answer this... every strain grows differently and every strain has different phenotypes that grow differently.
There is plenty of information on average plant height. You probably have a more specific question you want answered. Are you looking to grow in a small space and want to know if you have enough room? Let us know what type of plant you are asking about (indica, sativa). How it's grown effects the height as well (hydro vs. soil, bottle nutes vs organic, led vs hps vs sun). So which average are you looking for? There are many variables beyond what I listed.
@[member="Sgtstadanko707"] No shit bro?! That is impressive even for outdoors... you talking straight from seed or did you start inside?
8 weeks : A good size plant 2-3 feet, bushy and mature. Indoor 2 to 3 feet loaded with buds 4 weeks from being harvested.
You growing outside? Haven't seen u much on here. Sent from my SGH-I747M using Grasscity Forum mobile app
Its in my hydro thread. my hydro plants die tonight and I have, lets say lots of plants, Im just showing a few on my grow journals. I took a 100 gallon kids pool and made a Pool Of Green. View attachment 1446073 View attachment 1463396 View attachment 1487759
wow thats pretty cool.. I have a kids pool... hummmm Sent from my SGH-I747M using Grasscity Forum mobile app
I put 6 chunks of rebar around it and 3 10 foot pieces of PVC to make a dome. toss plastic over it at night. They lived through some frosty morning this spring. Yea a pool is a cool planter. next year ill do more but cut the bottom out. The plants are early blooming indica almost true autoflowering but are pushing 4 feet tall now and can get 6 feet.