quick q on autoflowers

i live on a tiny island in the caribbean where we dont have seasons, so we can grow outside all year long.

due to my location, i can not grow tall plants,security reasons..my question is, if i grow loweryders(autoflowering), do you guys have an estimate of how tall these will reach in my region, considering 12/12 all year long...

thanks.

does a bump count?

i wouldnt expect any more than 3 ft tall on any lowryder