Smallest autoflower

anyone know wich autoflower strains grow smallest?
i have a small growroom about 70cm tall and 30cm wide.
i have used the room before to grow up many plants before moving them
outside. between the plant pot and the light there is 35cm tall place for
a plant.

I wonder if anyone's crossbred the smallest autos available to make truly small 15in or less potent plant

theres a guy on here whis done a 3" plant. however i would suggest lsting the plant into the area, possibly extending up the walls to use all the light.
I have found with my current run, that soil pellets tend to make bigger plants at first, however one of my Rockwool girls is pushing hard to catch up, and ironically has the most extensive root system.

you don't need to go autos..you can run 12-12 from seed and finish at the same time with a small plant.

OR grow in a small pot ! WORKS 100%

*party cup*