I struggled for years trying to grow nasturtiums, Tropaeolum spp. when a friend, Jean Anne shared her secret. They must be planted before Halloween. Now I can't think of fall without thinking of getting a little nasturtium seed into the ground.
A few things I love about nasturtiums are they are easily grown from seed (if you know when to plant them), they grow well in heavy soils, and they reseed themselves. I'll be you have a spot for some vibrant spring color.