The first thing you need to know about Gerbera Daisy care indoors is that they need bright, all-day sunlight throughout the growing season. It means that you need to provide them with plenty of sunlight in spring, summer and fall. It is best if you can give them at least 3 to 5 hours of direct morning sunlight. It is best to water your Gerbera Daisy when the top ½ inch of the soil begins to dry.