Does the indoor temperature effect the growth of the sunflower seeds?

Only in some tempetures, a sunflower seed needs sun and warth a sunflower does not do well in cold cloudy areas infact a sunflower has a really big chanse of dying in cold and cloudy areas. If a sunflower is in a cold cloudy place it will die because without sunshine a sunflower can't make food without food it will starve and if it starves it will die it also needs to be warm so if you want to plant a sunflower i'd do it in the summer were it is both sunny and warm.

(sunflower seeds growth)

A sunflower needs to be healthy and in a good enviorment were it is sunny and warm to produce full grown and healthy seeds. In a indoor enviorment when summer it is a good time to put a sunflower i sugjest by the window were the sun is most likely to get all the sun it needs. :)