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Hardy perennial
Ranunculaceae
Perennials
Larkspur 'Summer Cloud'
Delphinium grandiflorum
Delphinium 'Summer Cloud': 30.5 cm high and 30.5 cm spread, full sun exposure. Blue, white flowers in June-August. Zone 3; choose a soil compatible with its moisture needs.
- Exposure
- Sun
- Life cycle
- Hardy perennial
- Hardiness
- Zone 3
Discover the plant
Common nameLarkspur 'Summer Cloud'
FamilyRanunculaceae
GenusDelphinium
Speciesgrandiflorum
CultivarNuage d'été
TypeHardy perennial
Botanical nameDelphinium grandiflorum
Delphinium grandiflorum 'Summer Cloud', known in the garden as Larkspur 'Summer Cloud', combines blue and white blooms with a volume that is easy to place in a composition. The foliage has shades of green, which can be highlighted among different textures. The usual flowering period is June-August. The clump reaches about 30.5 cm in height and 30.5 cm in spread; use these dimensions to place the plant in the middle of a flowerbed and for group plantings. A few stems can be reserved for bouquets without removing all the blooms from the garden.
In terms of cultivation, Larkspur 'Summer Cloud' prefers full sun; the recommended soil is humus-rich, retaining its moisture during growth, without stagnant water around the crown. For Larkspur 'Summer Cloud', regularly check the soil around the root ball: it should remain moist. Water at the base when the surface starts to dry and adjust watering according to rainfall; this exposure (sun) does not eliminate the need for water. A margin corresponding to its 30.5 cm spread avoids having to move the clump in the first few seasons. The indicated hardiness level is zone 3, to be assessed according to your garden conditions.
In a planting of Larkspur 'Summer Cloud', after flowering, remove spent flower stalks above healthy foliage and continue watering as appropriate for the soil. Tall delphinium spikes may require support in windy areas; plan for this before they fully develop. For companion planting, consider daylilies, campanulas, and coneflowers in varieties with similar needs. Keep its 30.5 cm height in mind to place lower plants on the correct side and allow the flowers to be visible during June-August.
Planting guide
From planting to establishment.
Spacing / density
12 in
Best planting time
Spring after the thaw or early autumn, allowing the roots to establish themselves before the cold weather sets in.
Growing method
Larkspur 'Summer Cloud': In spring after the thaw or in early autumn, allowing time for the roots to establish before the severe cold. For Larkspur 'Summer Cloud', regularly check the soil around the root ball: it should remain moist. Water at the base when the surface begins to dry and adjust the amount according to rainfall; this exposure (sun) does not negate the need for water. Large delphinium spikes may require support in windy areas; plan for this before they are fully developed.
Soil and care
The right care,at the right time.
Soil pH
alkaline; general indication of the botanical group
Care level
Regular maintenance
Watering
For Larkspur 'Summer Cloud,' regularly check the soil around the root ball: it should remain moist. Water at the base when the surface begins to dry and adjust watering based on rainfall; this exposure (sun) does not eliminate the need for water.
Soil type
Humus-rich, retaining its freshness during growth, with no stagnant water around the collar
Fertilization
Fertilizer for flowering
Moisture
Regular watering during growth
Seasonal care
Larkspur 'Summer Cloud': after flowering, remove spent flower stalks above healthy foliage and continue watering as appropriate for the soil. During its flowering period (June-August), also monitor for damaged stems and neighboring plants that might overshadow the clump.
Container growing
A garden,within reach.
Recommended pot size
A stable container, wider than the root ball, with drainage holes; size to be adapted to the format sold and the adult development.
To try 'Summer Cloud' Larkspur in a container, choose a well-drained and stable pot, suitable for the root ball and its future size (30.5 cm). The substrate should remain moist; it will dry out faster than in the ground. Plan to protect the container in winter depending on your climate.
Bloom and dimensions
Its place,in your garden.
Mature height
12 inches (30.5 cm)
Width / spread
12 inches (30.5 cm)
Flower color
Blue
Foliage color
Green
Foliage type
Deciduous in cold climates
Growth rate
Moderate
Growth habit
Erected
Fragrance
Undocumented for this selection
Bloom period
June-August
Garden associations
In goodcompany.
Companion plants
Associations to consider for Larkspur 'Summer Cloud': daylilies, bellflowers, coneflowers. Choose varieties that tolerate sun and comparable moisture; allow each clump its adult space.
Plants to avoid
Around ‘Summer Cloud’ Larkspur, especially avoid neighbours that would cover its leaves or strongly compete with its root ball. Compatibility in terms of light, water and spread takes precedence over a list of so-called enemy plants.
Frequently asked questions
Your questions,answered.
Where to plant Larkspur 'Summer Cloud'?
Expect sun and suitable soil (humus-rich, retaining moisture during growth, with no standing water around the crown). Large delphinium spikes may require support in windy areas; plan for this before they are fully developed.
What place should I reserve for Pied-d'alouette 'Summer Cloud'?
Reaches approximately 12 inches in height and 12 inches in width at maturity. Approximately 12 inches on center, to be adjusted according to the actual clump development. This size is suitable for use in the middle of a flower bed and for group plantings.
When does Larkspur 'Summer Cloud' bloom?
The stated period is June-August. The flower palette is blue, white. The exact date and duration depend on the climate, the season, and when the plant was installed.
How to water and care for Delphinium 'Summer Cloud'?
For Larkspur ‘Summer Cloud’, regularly check the soil around the root ball: it should remain moist. Water at the base when the surface begins to dry and adjust watering according to rainfall; this exposure (sun) does not eliminate the need for water. After flowering, remove spent flower stalks above healthy foliage and continue watering as appropriate for the soil.
Can Larkspur 'Summer Cloud' be grown in a pot?
To try 'Summer Cloud' Delphinium in a container, choose a stable pot with drainage holes, suitable for the root ball and its future size (30.5 cm). The substrate must remain moist; it will dry out more quickly than in open ground. Plan to protect the container in winter depending on your climate.
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