+Easy to Grow Bulbs, Inc. in 2011, come back year after year. They're called Sunset Sisters, by the way.
But freesia take some care as they start to bloom. The most important thing is to stake them. The blooms get top-heavy, and start to tip over. I learned that the first year! I get bamboo stakes at the Dollar Store and tie the stalks with green flexible gardening tape.
The next thing that you need to do is to remove the spent the blooms. Freesia bloom in sequence, so by the time the last flower has bloomed on the stalk, the first one is looking pretty sad. I just gently pull them off. In the photo the blooms have just begun, so it will take a few days to get to that point.
I also water and fertilize them generously. I stick houseplant spikes in the ground, and also water them with Miracle-Gro.
Freesia are plants for fussing over. Every year I think that they're gonna be too much trouble, and every year I take the trouble. With care, they are an amazing addition to the garden. They will bloom throughout March, and then will die back as the heat starts to come on in April. And the next year they will come back!