As an auto, you need to be careful when transplanting. Any shock will stunt their growth. Be as careful as possible. Normally Iād go from germination to final pot. As far as outside, make sure your temps are high enough/ both at night and during the day. Iād say not lower the 60 degrees (16 c ). Again itās about not stunting her growth. If wind is an issue, feel free to stake her. I find doing it sooner rather then later, as thereās less chance of damaging the root system.
Happy growing š±