I want to grow flowers in my apartment with a grow light. I was considering marigolds and just trying to figure out how long they grow for and during what part of the year they would grow. I keep running into the following information:
Marigolds enjoy a longer blooming season in USDA zones 10 and higher, where the weather dips toward freezing later in the winter. Planting marigolds after the last frost in the spring means you should see blooms after 45 to 60 days, and they'll continue until (usually) the first frost of fall.
Does that mean indoors they will bloom all year? If not, how long does marigold blooming last indoors and in what month does the blooming period start?
To be more specific, I will be planting orange tagetes erecta or commonly known as African Marigolds.