| There are some viburnums that provide showy and wonderfully fragrant flowers in early spring--many viburnums don't have fragrant flowers so do your homework before buying! (Better yet, buy them in bloom.) Calycanthus has spring flowers with a rather odd sweet/fruity fragrance. Buddleia has fragrant flowers (some more so than others) all summer and as a bonus is irresistible to butterflies. Buddleias are very tough, drought-tolerant plants that do well in poor sites. I'm not a big fan of roses, but there are many that provide fragrance. Various Osmanthus will provide late fall fragrance, and Sarcococca species bloom in winter. Neither has showy flowers, but they are attractive evergreen shrubs and provide fragrance when few other plants do. Aside from shrubs, don't neglect hardy perennials and bulbs. Lilium regale is very fragrant and has been hardy and reliable in my garden, although the blooming period is far too short. BTW you should also check out the fragrant plants forum for more suggestions, probably far more than you will get here. Finally, don't be afraid to ask for help at the local nurseries. Behnke's in Beltsville is one of the all-around best in our area, and their staff are usually pretty knowledgeable and can provide you with all kinds of suggestions. | 
