Snapdragons, or Antirrhinum majus, are flowers that can handle cold temperatures, but not heavy freezes.
Antirrhinums are more commonly known as Snapdragons, they are a fragrant genus of flowering plant, containing around 36 species, belonging to the Plantaginaceae family. These plants resemble the face of a dragon that opens and closes its mouth when squeezed, hence the ‘snap’.
Snapdragons need full sun, and grow well in most types of neutral soil with a pH between 6.2 and 7.
Snapdragons come in a wide range of colours including purple, yellow, white, crimson, pink and bronze. They are native to the Mediterranean though they will grow well in English flower beds and rock gardens.
- These flowers should be planted outside after the last frost in your area.
- These plants like to be in full sunlight and need to be situated in average soil that offers good drainage.
- Snapdragon seedlings can be bought from your local garden centre, and need to be planted 1 – 2 inches deep with about 15 – 30 centimetres between each seedling, as larger species can grow between 30 and 48 inches high.
- Watered in the seedlings but do not over water.
- The plants should be watered in the morning, as leaving the plants wet at night can lead to distorted growth and rotting of the roots.
- Snapdragons will bloom around June and the tallest growing shoots should be pinched out when they are around 3 inches tall to encourage branching and more flowers.
- Once the flowers have died off, cut the plant back to around 6 inches, which will then promote new growth and a second bloom if well fertilised.
- If you are growing the taller varieties of snapdragon, be sure to stake them to provide them with extra strength.
Snapdragons are very hardy annual flowers that can withstand a heavy frost and will provide beautiful colour in your garden for the entire summer. Snapdragons are usually treated as annuals in temperate climates.