Delphinium: superb flower stems that are easy to grow

Delphinium: superb flower stems that are easy to grow

Délphinium: A spectacle of erect flowers!

Délphinium, or "Lark'sfoot", or Dauphinelle…. 3 names for the same plant which offers a striking spectacle at the height of their flowering. Erected in the garden, the delphiniums are like erect and flaming spears.
Delphiniums are best known for their hybrid varieties which have been selected and hybridized for a long time by botanists.

Delphiniums are spectacular, garden-friendly perennials.

Native to the northern hemisphere, the delphinium is represented by many species, which are frequently found in the garden such as Delphiniums grandiflorum, Delphiniums elatum and their many hybrids divided into different varieties such as delphiniums "Elatum" , the delphiniums "Connecticut yankee", the delphiniums "Pacific", or even the delphiniums "Belladona".

Botanical name:


Type of plant

Family : Ranunculacea
• Cycle: perennial or annual plant (variety)
• Hardiness: hardy -30 ° C
Foliage : obsolete
Exposure : Sun
Ground : always fresh
• Harbor : upright, vertical shaft


• Cold resistance: -30 ° C
Flowering : all summer, from June to September.
Interview : One size after flowering, cut back the flower stalks at ground level for flowering in August-September
Height: from 0.50 to 2.40 m

Gardener's info:

Place your delphinium plants or seedlings sheltered from the wind, along a low wall or a garden separation.

When to sow the delphinium or lark's foot?

• Sowing under shelter: April
• In place: in June, and summer.

How to sow the delphinium?

Sowing under shelter:
• Prepare pots of potting soil
• Place 1 seeds per cup, on the surface
• Keep the soil moist until emergence
• When the seedlings have 3 leaves, transplant them (after the risk of frost)

Sowing in place:
• Prepare the soil by turning it over half a spade high.
• Break up the clods to make the soil fine and slightly loose.
• Discard seeds, on the fly, on the surface.
• They will not all germinate simultaneously, some will germinate immediately, others in the spring of the following year.

When to plant the delphinium?

• In spring or in September.

How to plant the delphinium?

Prepare the ground:
• Dig to the depth of a spade about 20 cm deep.
• Add potting soil and compost.
• Place the plants with their root ball.
• Leave 50 cm of space between the plants.
• Tamp, water, it's planted!

Flowering period:

• From June to September.


• Watering: in summer, water regularly, the soil should always be cool.

Some families and varieties ...

• Delphinium "grandiflorum": is a small and very bushy plant. It is 50 cm high and spans 50 cm. The leaves of Delphinium grandiflorum are very indented. It produces several flower stalks bearing beautiful spikes with bright blue flowers. The flowers measure 3 to 4 cm and the stem can measure up to 50cm.
Flowering from June to August.

• Delphinium "elatum": this is the group that brings together the largest delphiniums. Its stems are unbranched, and its flowers are dense and tight, around 6 cm in diameter. Culminating at more than 2 m in height, the flowers of the stalk can be single or double. The space occupied by the delphinium "elatum" can reach 0.80 m in diameter on the ground and develop from 10 to 15 flower stalks.
Some varieties of delphinium "elatum":
> Misty mauve:
double purple flowers
> Tropenacht: bright blue flowers with white hearts
> Pagan purple:
dark blue flowers with a black heart.

Delphinium "belladonna" : this delphinium with an erect habit and loose ramifications.
Some varieties:
> Atlantis : deep blue.
> Bellamosum: with less dense flowers on the blue stalk

Delphinium "pacific": These "pacific" delphiniums have imposing stems of nearly 1.50 m, they feature large single or double flowers. Unfortunately, their life is shorter. we can consider them as biannuals.
Some varieties of "pacific" delphinium:
> Pacific "Black night", very dark blue, with a black heart and stem.
> Pacific "Galahad" with immaculate white flowers.

Agrees with

• Roses, garden valerian, daylilies ...

With or without a garden ...

In the garden : in flower beds, in a garden for a bouquet ...
Without garden: Delphinium does not always grow well in pots /

We recap

• Perennial: perennial
• Hardiness: up to -30 °
• Flowering: June to September
• Color: Blue, purple, white, mauve, sometimes pink
• Type of soil: rich humus and fresh
• Planting: full ground at the end of spring
• Maintenance: Regular watering in summer
• Use: massive, along a wall, in front of a clematis ...




Space between plants



regular in summer

2.40 m

50 cm



Few plants catch the eye like the tall stems of the delphinium. Its flowers offer shades of blue that are quite rare in the garden. It can be fleeting and needs a little care to bloom regularly.

Guides, letter models, practical sheets. We leave the card to you. Make your choice !

Few plants catch the eye like the tall stems of the delphinium. Its flowers offer shades of blue that are quite rare in the garden. It can be fleeting and needs a little care to bloom regularly.

Delphinium, Lark's Pied, Dauphinelle

Vegetation Perennial : Plant that lives more than two years.
Annual : Plant that lives less than a year.
Biennial : Plant whose life cycle lasts two years. In the first year, the plant grows in the second year, it gives flowers and fruits, then it dies.
To know more

Foliage Persistent : The foliage lasts all year.
Semi-persistent or semi-deciduous : The plant retains part of its foliage all year round.
Lapsed : The plant loses its leaves in the fall.
To know more

Height at maturity Mature height is the height to which the plant naturally rises when it is in the most favorable conditions.
It may take time for the plant to reach this height, depending on the speed of its growth.
The plant may also never reach its height at maturity, if it is pruned regularly, or if it is not cultivated in the optimal conditions for its growth.
To know more

Interview Easy : The plant does not require special care, or very simple care.
Moderate : The plant requires regular care or a little gardening practice.
Difficult : The plant requires important care and gardening skills.
To know more

Water requirement The water requirement of a plant can be supplied by rain, natural soil moisture or watering. To estimate the necessary watering, it is also necessary to take into account the ambient temperature, because of the evaporation, and the capacity of the soil to retain water.
Low : For a houseplant, water monthly. For an outdoor plant, it tolerates drought well.
Way : For a houseplant, water weekly or every two weeks. For an outdoor plant, it will need water supplies before the soil dries up.
Important : For a houseplant, water several times a week. For an outdoor plant, it needs abundant and regular water supplies.
To know more

Growth Slow : The plant reaches maturity in several decades.
Normal : The plant reaches maturity in a few years.
Fast : The plant reaches maturity in a few months.
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Multiplication Propagation involves creating a new plant yourself.
Sowing : The plant reproduces by planting seeds.
To know more
Division : Part of the root (rhizome, tuber) is used to create new shoots.
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Cuttings : A branch is planted in the ground, where it produces new roots.
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Layering : The branch is not cut from the plant, but it is partly buried in the earth, where it develops its own roots.
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Graft : A plant fragment is implanted on another plant.
To know more
Impossible : It is not possible, for an individual, to multiply his plant. If he wants another, he must buy it from a professional.

Cold resistance Resistant (rustic) : Frost resistant plant.
To protect (semi-rustic) : Plant which supports the freshness but which requires a protection against the frost.
To return (fragile) : Plant which fears the cold and which must be sheltered during the cold season.
To know more

Soil type Clay soil : Heavy and sticky soil when wet, which hardens and cracks when drying.
Limestone soil : Clear and chalky earth, dry in summer and muddy in winter.
Sandy soil : Light soil, easy to work with and which retains water poorly.
Stony ground : Soil loaded with pebbles and poor in organic matter.
Humidor : Black and easy to work, it looks like forest earth.
Heather land : Acidic soil (pHВ 4 Г 5), sandy and rich in humus.
Potting soil : It's easy, this land can be bought in stores!
To know more

Soil pH The pH measures acidity of the soil.
Alkaline soil : The pH is above 7. These are mainly calcareous soils.
Neutral soil : The pH is between 6.5 and 7.2. Most plants grow well there.
Acidic soil : The pH is below 7. This is mainly heather land.
To know more

Soil moisture Soil moisture does not depend on rain, but on how the soil retains water or not.
Drained soil : Fresh soil but where water does not stagnate.
Wet soil : Soil where water stagnates.
Dry soil : Soil that does not retain water.
Fresh soil : Soil that remains constantly moist (but not soaked). To know more

Exposure Sun : The plant should have direct sun all day. Inside, it is directly (less than 1m) in front of a window facing south or west.
Part shade : The plant should have sun only part of the day. Indoors, it is in front of a window to the east or further away from a window facing south or west.
Shadow : The plant should be in the shade of other plants. Indoors, this is the case for rooms in winter, windows to the north or partly obscured and when the plant is far from the window (+ 2 m).
To know more

Planting Full earth : The plant can be planted directly in the earth.
Bin, pot or planter : The plant can be planted in a container. (The volume of the container must be adapted to the size of the plant.)
To know more

OCT. NOV. From C.

OCT. NOV. From C.

OCT. NOV. From C.

Often called lark's foot, the delphinium counts more than 300В species native to the mountainous areas of the globe †“of which about half in China – and belongs to the family of Buttercups. However, today mainly horticultural varieties are found.

The Latin name, Delphinium, refers to the spur more or less curved according to the species, present at the back of the flowers, very visible on the bud, which makes it resemble a rostrum of a dolphin.

The plant forms a basal tuft of leaves, very cut and more or less webbed, from which several flower stems emerge, branched or not, which rise 0.30В More than 2В m. The flowers can be flattened or more rounded, even trumpet or pixie cap, single or double, in very tight, dense spikes, or on the contrary looser depending on the species. They bloom in the summer and sometimes come up again in the autumn.

Precious for the bedrock, to which they give relief, in the company of clématites for example, whose colors harmonize perfectly with them, the large delphiniums offer superbly colored flowers, most often blue, but also white, pink, yellow, red, purple or violet, with, depending on the variety, a central eye in contrast, black or white, called fly. The verticality that they bring is equally suitable in a geometrical massif as in a country garden.

Medium and low species are equally remarkable in flower beds and borders. They are also more resistant and have a longer life span than tall varieties.

The delphinium is perfectly hardy, but perennial species are sometimes sparse. In good growing conditions, however, they can be reseeded †“if you have not cut off all the flowersВ!

Large spikes of delphiniums form spectacular bouquets which hold in a vase for a long time.

The Indians used larkspur to paint blue. Later in Europe, it was finely ground to make blue ink. Today, the juice of the flowers mixed with alum is used to make a blue ink.

AttentionВ: all parts of the plant contain alkaloids and are very toxic if swallowed, causing vomiting and even death in large doses. In low doses, extracts of this plant are used in herbal medicine, especially for the eyes.

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Which plants to associate them with?

The delphinium is ideal in a bed because these tall flowering spikes bring color and relief. If you want to play the color card, you can combine it with orange blossoms. They will highlight the pretty blues of the delphinium. For this, we can bet on the bulbs to be planted in spring. Arum ‘Mango’ and Dwarf Dahlia Cactus Sumatra ’offer several layers and shades of sophisticated orange blooms.

The delphinium can also be part of plant compositions turned towards blue. Several perennials reveal a subtle color scheme from spring to fall. From March, the Toulouse double violet blooms before being accompanied by the Scabious ‘Butterfly Blue’ from April to October. In summer, Sage Reine des Bleues ’offers long spikes while the creeping habit of perennial Geranium Johnson's Blue dresses the foot of the massif. For a varied and supplied bed, consider alternating your flowering plants with evergreen foliage or grasses. Boxwood, Aucuba japonica ‘Crotonifolia’ and Choisya ternata take over from the blooms and structure the massif all year round.

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Video: HortiHugh: Delphinium care