Galanthus elwesii (giant snowdrop)

One of the first plants to emerge, this 24-inch-tall bulb bears nodding white bells as early as mid-January. Blooms are faintly chocolate-scented; leaves are glossy, erect, and strap-shaped.

For long-lasting bright yellow flowers that sparkle in midsummer, try Allium moly. It is robust, hardy, and an excellent cut flower, naturalizing and increasing happily in the sun in most garden soils. The cultivar 'Jeannine' flowers earlier and produces larger umbels on sturdier stems.

The newly opened blossoms of N. ‘Intrigue’ (1970, Zones 3–9) are a soft chartreuse-yellow. As they mature, however, the flowers become a luminous white and attract a lot of attention, especially when planted with a blood-red tulip like ‘Hollandia’. When combined with another soft-colored flower, like Hyacinthus orientalis ‘Lady Derby’, it creates a peaceful scene. An American-bred jonquilla-type daffodil with several flowers per stem, ‘Intrigue’ also has a wonderful fragrance. 

The species daffodil N. bulbocodium var. conspicuus (Zones 3–9) has been around so long that no one can actually put a date on it. Its look is unusual: It does have six golden petals, but they are tiny, twisted, and often difficult to see. Its prominent rounded cup gives rise to its nickname, hoop petticoats. It prefers acidic soil and when happy, will reseed, blooming like buttercups in groups. Only 4 to 6 inches tall, it naturalizes itself in many areas.