Gardens serve many functions, from providing veggies to feeding hummingbirds. Another option is packing your flower garden with fragrant, sweet-smelling blooms.

What is the best smelling rose? Get your questions answered by Chris from Week's Roses as he explains the varieties, types, and colors of Portland's official flower.

There are more than 300 species of roses and thousands of varieties. Most of them do not have a noticeable fragrance, writes Bob Niklewicz, a UC Master Gardener of Napa County.