my daughter's sunflower is blooming, but it's inside and i'm thinking it won't do well. can i deadhead it? will it grow back? i'm new to gardening and started everything indoors a little too early...ok, about a month or 2 too early. i'm in zone 6 and we're still getting high temps in the 50s, so i can't put anything out until the middle of may at the earliest. now that i know how quickly the sunflowers grow we'll definitely start more seeds in the summer, but i'd like to be able to use what we have as well.