I plant my Pointsita outside every spring, They grow bigger. In Fall thy come in. HOw big will they grow?

Someone said to put then in a dark place for a short time , The Flowers Bigger %26amp; get more color. Thankyou TT

I plant my Pointsita outside every spring, They grow bigger. In Fall thy come in. HOw big will they grow?
I BELIEVE POINSETTAS ARE UNIQUE IN SIZE. THEY ALWAYS NEED A DARK PLACE FOR A PERIOD OF TIME (TO BE DORMANT), BUT CAN BECOME A GOOD 30" IN SOME CLIMATES.
Reply:I had poinsettas as hedges in southern California. They get big. These were waist high.