Larkspur

Large erect perennials with an abundant summer blooming.
Common name : Larkspur
Scientific name : Delphinium spp.
Family : Ranunculaceae
Category : Perennials
Type of plant : Perennial
Pruning needed
Pruning needed
Sun loving
Sun loving
Flowery
Flowery
Frost resistant
Frost resistant
Full description for Delphinium spp. not yet available.

Sowing & planting

J
F
M
A
M
J
J
A
S
O
N
D

Flowering

J
F
M
A
M
J
J
A
S
O
N
D

Caracteristics

Exposition
Water needs
Granulométrie plants.granulometry_4
Frost-resistance High
Zone USDA 5b
Height 100 - 170
pH 7

Identify my larkspur

Delphiniums are perennials (sometimes grown as annuals), with toothed leaves that are cut into three to seven lobes. The flowers are cup-shaped, arranged in long erect ears. They are single or double, sometimes hooded. The whole plant is poisonous by ingestion - you are advised against using this criterion for identification!

Plant my larkspur

The delphiniums prefer a rich soil and a sunny situation! Plant your delphiniums every 20-40 cm (adapt according to the adult size of the cultivar) in a fertile soil, well drained, in full sun, sheltered from the wind. Water copiously after planting.

Water my larkspur

Water twice a week during the first month. After that, you will just need to water in case of drought.

Cut down my larkspur

You can cut down the dry stems at the end of the season, if their look bothers you.

Mulch my larkspur

Mulch your delphiniums before winter, and renew it if necessary in April. Use some wood mulching, preferably wood shredder.

Prop my larkspur

In April, give a support pole to the large delphiniums, especially if they are exposed to the wind.

Prune my larkspur

Vigilant deadheading will prolong the blooming period !

Fertilize my larkspur

Delphiniums like rich soils: when mulching is repeated, it may be worthwhile to provide a some compost or mowed lawn mulch in a thin layer. Spreading it in November and in April will make it available during growth and then during flowering.

Thin out my larkspur

Thin out your delphiniums in the spring by selecting 3 to 7 shoots, which will promote flowering.

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