on the socond node it will always have sidways growing. You can train them to do loops. I have made plants do 3 loops, as a joke.
ON earth plants want there roots pointing to earth center. The branches will point to the light. Now on Mars, check with local growers there.
IF the light hits the ground it will not grow ground, but if the light hits the plant it grows , so bend to fit the grow area. Use chlose pins to weigh the leafs /stems over , use panty hose strips to bend stalks over with out breaking them. NEVER use string or wire , it cuts off the flow on the stem.