Snapdragon Growing Guide



Crop Rotation Group



Fertile garden soil with excellent drainage.


Full sun.

Frost tolerant

Good. Where winters are mild, well-rooted plants survive one winter and bloom heavily the following spring.


Encourage fast growth by mixing a balanced organic fertiliser into the soil before planting.


Upright and uniform, snapdragons make great accent plants when grown in groups. Try a snapdragon as the upright element in a mixed container.


Single Plants: 30cm (11") each way (minimum)
Rows: 30cm (11") with 30cm (11") row gap (minimum)

Sow and Plant

When starting snapdragon seeds indoors in late winter, barely cover the seeds with moist seed starting mix. Grow the seedlings under bright lights until they are large enough to transplant outdoors. Most gardeners save time by buying snapdragons as bedding plants.
Our Garden Planner can produce a personalised calendar of when to sow, plant and harvest for your area.


Some varieties can grow tall enough to need staking. Colours include red, orange, yellow, violet, white, pink and many bicolours.


Snapdragons make wonderful cut flowers. Gather stems when two-thirds of the flowers on the spike have opened. As flowers fade outdoors, snip them off with secateurs to encourage reblooming.


Especially in warm, wet weather, tired snapdragons may collapse from various root rot diseases.

Planting and Harvesting Calendar

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Pests which Affect Snapdragon