Crocus
Crocus flowers are one of the first telltale signs of spring. Brightly hued spring varieties start emerging from the ground in late winter and early spring, usually before anything else flowers. When planted in mass, crocuses make a brilliant show of color, with a wide variety of colors to choose from, including white, yellow, blue, purple, and bi-colored varieties.
When to plant crocus bulbs: Crocuses grow from corms (i.e. bulb-like structures) and should be planted in the fall before the ground freezes. Aim for planting them about 6 to 8 weeks before your first expected frost date. This allows the bulbs to establish roots before winter sets in and ensures they are ready to bloom in early spring.