Which Flowers are in Season during Winter?
Many an uneducated flower fan believes that flowers don't survive harsh winters; this is a simple misconception. There are plenty of gorgeous varieties of "winter flowers " or flowers that can grow and thrive throughout winter's excessive precipitation and freezing temperatures. A lot depends on the Zone of the US you live in; but there are many beautiful blooms considered to be winter flowers.
Perhaps the most common among flowers that outlast a winter season are Carnations. Carnations, commonly called "pinks," are known for hardiness. They can be grown from seed and set outdoors in Zones 3 through 9. They have a large long-lasting bloom, with a rich spiced scent. Carnation Plants put up a sturdy stem that can grow up to 24 inches long. Carnations can be replanted yearly, and with correct winterization, they can be kept as perennials.
roses are flowers that don't disappear in wintertime. All outdoor roses need some attention going into winter. Winter weather in Zones 6 & below can really challenge rose bushes, whereas Shrub roses are hardier & pretty much fend for themselves. When outdoors, roses need to be coaxed into "dormancy," and well-watered after the first frost. (Once the ground freezes the bush has to take care of itself, so give it a good soaking going into winter.) Zones 7 & 8 always stand the chance of a freeze and maybe even snow. Mounding with leaves or shredded mulch should suffice for protection. Roses thrive - and still bloom and grow very well indoors - during winter. In fact, roses are a popular choice for holiday floral arrangements because of their beauty, color variety and color meanings & sweet aromas.
Another notable flower for winter is the Gerbera Daisy. With loads of color options – from yellow to pink, to orange, red and white, Gerbera Daisies are the favorite of many florists because they can be used in so many designs. Plus they are easy to care for. Simply clip the bottom a quarter to half-inch every other day and give the vase fresh water and they'll last over three weeks. In Zones 9 &10 you can safely leave your gerbera daisies in the ground to overwinter. In Zones 7 and 8 gerbera daisies can be left in the ground with winter protection, (see above protection for roses) although the survival rate may be low.
lilies are an iconic winter flower, often used in winter weddings and other winter festivals. Lilies are also popular for gifting. Among the flower bouquets of lilies, Stargazer and Cassablanca lily bouquets are the most sought after floral bouquets. Besides bouquets, lily bulbs & potted lily plants are also popular gifts. If you grow outdoor lilies, cut the tops off after they finish flowering so they won't try to manufacture seed, leaving about 3 feet of stem/leaves to strengthen back up. Cut the rest off late in the fall. It doesn't hurt to leave the stems until spring if you don't mind the semi-messy look.