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A classic annual, snapdragons have been grown for generations. Snapdragons are a wonderful cool-season annual that fit right along with pansies and violas and look good in mixed containers or cut for bouquets. Not only are they appreciated by humans for their bright, cheery colors, but they are also an important nectar plant for the bumblebee.
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Part Sun, Sun
From 1 to 8 feet
6-18 inches wide
Snapdragons are one of the few flowers that come in almost every color. These cool-season annuals make a great addition to any garden and come in a wide variety of colors so fit most color schemes, even in the winter.
Snapdragon Care Must-Knows
As soon as it's the first day above freezing, the itch to start gardening sets in. Snapdragons are one of the first plants that can scratch that itch. These plants are tough in the cold and will keep up a blooming show. Whether it's early spring, late fall, or even midwinter in Southern climates, snapdragons are happy to keep blooming.
While these plants are more than happy to deal with the cold, they often don't handle summer heat well, especially in Southern climates. In this case, plan on storing them indoors, as they will stop blooming in summer heat and may not make it through the stress of the summer. Once cool fall nights arrive, they can be happily replanted.
For the best show, give them as much sun as possible. But when heat sets in, provide shelter from the hot afternoon sun. Plants are more susceptible to foliar diseases like rusts and powdery mildew in shade, so make sure to space plants properly and keep foliage dry.
Some of the old-fashioned varieties of snapdragons can get large, especially varieties bred for cut-flower production. With large types, be sure to give young plants a good pinch to encourage bushy growth and prevent too much flopping.
Once the plants have put on their first major set of blooms, keep plants deadheaded to encourage more blooms. If it seems like the plants aren't growing many more buds, it is sometimes beneficial to cut back the plants and add a dose of fertilizer. This will kick production into gear for another growth spurt.
It seems there are always new varieties on the market. Lately, a slew of varieties with variegated foliage, dwarf habits, improved heat and disease tolerance have been developed (just to name a few). There are also new flower forms with interesting patterns, open-face blooms, and double blossoms.