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|Botanical Name||Antirrhinum majus|
|Common Name||Snapdragon, dog's mouth, lion's mouth, toad's mouth|
|Plant Type||Tender perennial grown as an annual|
|Mature Size||6 to 48 inches, depending on the variety|
|Sun Exposure||Full sun to partial shade|
|Soil Type||Well-draining, rich, moist|
|Soil pH||Slightly acidic to neutral|
|Bloom Time||Spring and fall|
|Flower Color||White, yellow, pink, red, orange, peach, purple, and violet|
|Native Area||Europe and North America|
Your snapdragons will bloom most profusely in full sun to partial shade in the spring. Once the temperature heats up, they may stop blooming altogether. Planting them in partial shade and keeping them well watered will help them make it through the summer and likely bloom again in fall. However, they are quick to get established and it can be just as easy to replace your snapdragon plants each season.
Snapdragons need adequate watering. When growing snapdragon, keep moist for the first few weeks. Once established, snapdragon will need approximately an inch of water per week in times of no rainfall. Water near the crown of the plant and avoid overhead watering to keep your snapdragon healthy. Once established, let the soil dry about an inch deep before watering.
Snapdragons prefer cooler temperatures. Snapdragons grow best when nighttime temperatures are in the low 40s and daytime temperatures in the low 70s Fahrenheit. Once established in the bed and hardened off, they can withstand sub-freezing temperatures. Make sure they stay well-watered during cold spells and add a layer of pine straw mulch, and they can last for quite some time. If you should get record low temperatures, cover snapdragons with pine straw for a few days until the chill has passed. Seedlings grown indoors do need to be hardened off for about 10 days to two weeks before planting in the garden.