Delphinium Cheer Blue F1

Large-flowered larkspur

Product code : NOR-GR06

Winner of an AAS and Fleuroselect 2020 award, larkspur 'Cheer Blue F1' is a compact and vigorous variety that has won over gardeners in northern climates. Covered in magnificent blue flowers, this delphinium is ideal for creating superb borders in landscaping. This variety reaches 40 cm (15.7 inches). The floral palette stands out for its blue color. The packet contains 20 seeds to start your planting. The compact habit of this variety makes it easy to integrate into confined spaces: you can plant it closer to a thoroughfare to enjoy its details and easily attend to it. Design your layout taking into account the adult habit and the distance from which the flowers will be observed.
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Detailed plant guide
Advice adapted to Canada
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Quantity
20 seeds
Exposure
Sun
Life cycle
Hardy perennial
Hardiness
Zones 3 to 4

Discover the plant

Common nameDelphinium Cheer Blue F1
FamilyRanunculaceae
GenusDelphinium
SpeciesLarge-flowered
CultivarBlue Cheer
TypeUntreated
Botanical nameLarge-flowered larkspur

Larkspur 'Cheer Blue F1' (Delphinium grandiflorum) – Offered by seed company WH Perron

Winner of an AAS and Fleuroselect 2020, the larkspur 'Cheer Blue F1' is a compact and vigorous variety that has won over gardeners in northern climates. Covered in beautiful blue flowers, this delphinium is ideal for creating beautiful borders in landscaping. Its early flowering, which extends into early summer, and its excellent germination make it an essential choice.

Hardiness zone: 3-4
Maturity: Perennial
Germination: 14 to 21 days
Sowing temperature: 21°C during the day / 15°C at night
Plant height: 40 cm
Spread: 25 cm
Color: Blue
Formulation: Raw
Use: Flowerbeds
Flowering: May to July

Cultivation method:

Sow seeds indoors about 6 to 8 weeks before the last spring frost. Maintain a temperature of 70°F (21°C) during the day and 60°F (15°C) at night for optimal germination. Use a light, well-drained potting soil. Transplant seedlings into the ground after the last frost, in a sunny or partially shaded area. Space plants 10 inches (25 cm) apart for good development.

Larkspur 'Cheer Blue F1' is perfect for beautifying your flowerbeds with its bright colour and compact habit. Its ease of cultivation and long flowering period make it an ideal choice for gardeners looking for an elegant and structured arrangement.

Photo de Delphinium Cheer Blue F1. Recouvert de magnifiques fleurs bleues, ce delphinium est idéal pour créer de superbes bordures en aménagement paysager. La couleur caractéristique est : bleu. Le visuel permet d'observer les contours, les teintes et la disposition des éléments présentés. Les détails de forme et les contrastes donnent un aperçu de l'apparence de cette plante ou de sa récolte.

Sowing guide

It all startswith a seed.

Germination temperature

21 D - 15 J

Germination time

14 to 21 days

Sowing period

Indoors, 6 to 8 weeks before the last frost

Propagation

Sowing

Growing method

Maintain a temperature of 21°C during the day and 15°C at night for optimal germination. Transplant young plants outdoors after the last frost, in a sunny or partially shaded location. Germination generally takes 14 to 21 days in potting soil maintained at 21 D - 15 N. The sowing schedule for this variety is as follows: indoors, 6 to 8 weeks before the last frost. To plant this variety, first choose a location corresponding to its sun exposure: full sun. Indoors: A well-drained and porous seed-starting mix is ideal to prevent overwatering. Outdoors: Cool, humus-rich soil. This variety benefits from soil that retains moisture during its growth; regular checks below the surface help to intervene before wilting while avoiding saturating the root ball. Plan for this variety's place in the flowerbed, considering its height of 40 cm (15.7 inches). When designing the planting, allow 25 cm (9.8 inches) of spread for each plant of this variety. Use this variety at the edge of an accessible planting area; its compact silhouette is best appreciated when taller plants do not overshadow it.

Soil and care

The right care,at the right time.

Watering

Use a light and well-draining potting mix. This variety benefits from soil that retains moisture during its growth; regular checks beneath the surface help intervene before wilting while avoiding oversaturation of the root ball. To plant this variety, first choose a location that matches its exposure: sun. Indoors: A well-draining and porous seedling potting mix is ideal to prevent overwatering.

Soil type

Use a light, well-draining potting mix. To plant this variety, first choose a location that matches its sun exposure: full sun. Indoors: A well-draining, porous seed-starting mix is ideal to prevent overwatering. Outdoors: Cool, humus-rich soil. This variety benefits from soil that retains moisture during its growth; regular checks below the surface help intervene before wilting while avoiding saturating the root ball.

Fertilization

To install this variety, first choose a location corresponding to its exposure: sun. Indoors: A well-drained and porous seed-starting mix is ideal to prevent overwatering. Outdoors: Cool soil rich in humus. During its flowering from May to July, keep this variety accessible to remove damaged parts without bruising the still fresh flowers.

Moisture

Cool to moist soil, with good drainage

Seasonal care

During its flowering period from May to July, keep this variety accessible to remove damaged parts without crushing fresh flowers. Transplant into the garden with a mixture of half garden soil, half compost, in a sunny location, preferably well sheltered from prevailing winds. Stake them in early May, as they need strong stakes. Newly established plants require abundant watering; thereafter, water at the first sign of wilting, as delphiniums dislike humidity. In early spring, spread lime all around the base; watering will help the lime penetrate. Apply a 15-30-15 fertilizer every 15 days from May 15 to August 15. After flowering, cut back the stems below the inflorescence; some years, a second bloom may develop. In the fall, cut the plant back to ground level. Germination generally takes 14 to 21 days in potting soil maintained at 21 J - 15 N. The sowing schedule for this variety is as follows: indoors, 6 to 8 weeks before the last frost. This variety benefits from soil that retains moisture during its growth; regular checks beneath the surface help intervene before wilting while avoiding oversaturating the root ball. This variety flowers from May to July.

Container growing

A garden,within reach.

Recommended pot size

Drained container with a 25 cm (9.8 in) spread per plant.
The foliage of this variety measures about 25 cm (9.8 in); allow this width around the container instead of crowding several plants against its edge. Place the container of this variety in this exposure: full sun, checking the light received throughout the day. Germination generally takes 14 to 21 days in potting mix maintained at 21 D - 15 N. The sowing schedule for this variety is as follows: indoors, 6 to 8 weeks before the last frost. To plant this variety, first choose a location corresponding to its exposure: full sun. Indoors: A well-drained and porous seed starting mix is ideal to prevent overwatering. Outdoors: Cool, humus-rich soil. This variety benefits from soil that retains moisture during its growth; regular checks below the surface help intervene before wilting while avoiding saturating the root ball. During its flowering from May to July, keep this variety accessible to remove damaged parts without bruising the fresh flowers. Transplant to the garden with a mixture of half garden soil, half compost, in a sunny location, preferably well sheltered from prevailing winds.
Photo de Delphinium Cheer Blue F1. Recouvert de magnifiques fleurs bleues, ce delphinium est idéal pour créer de superbes bordures en aménagement paysager. La couleur caractéristique est : bleu. Le visuel permet d'observer les contours, les teintes et la disposition des éléments présentés. Les détails de forme et les contrastes donnent un aperçu de l'apparence de cette plante ou de sa récolte.

Bloom and dimensions

Its place,in your garden.

Mature height

40 cm (15.7 in)

Width / spread

25 cm (9.8 in)

Flower color

Blue

Growth habit

Compact

Bloom period

Larkspur 'Cheer Blue F1' (Delphinium grandiflorum) – Offered by seed producer WH Perron A winner of both an AAS and Fleuroselect 2020 award, the 'Cheer Blue F1' larkspur is a compact and vigorous variety that has won over gardeners in northern climates. Covered in magnificent blue flowers, this delphinium is ideal for creating superb borders in landscape design. Its ease of cultivation and long flowering period make it an ideal choice for gardeners looking for an elegant and structured layout.
Photo de Delphinium Cheer Blue F1. Recouvert de magnifiques fleurs bleues, ce delphinium est idéal pour créer de superbes bordures en aménagement paysager. La couleur caractéristique est : bleu. Le visuel permet d'observer les contours, les teintes et la disposition des éléments présentés. Les détails de forme et les contrastes donnent un aperçu de l'apparence de cette plante ou de sa récolte.

Garden associations

In goodcompany.

Companion plants

Plan the position of this variety in the bed, considering its height of 40 cm (15.7 in). When designing the planting, allow for a 25 cm (9.8 in) spread for each plant of this variety. Use this variety as an edging plant in an accessible design; its compact silhouette is best appreciated when taller plants do not overshadow it. The shades of this variety lend themselves well to a composition with white flowers and green foliage; repeat the color in several spots throughout the bed to guide the eye without multiplying species.

Frequently asked questions

Your questions,answered.

When to sow Delphinium Cheer Blue F1?
Germination typically takes 14 to 21 days in potting soil maintained at 21 J - 15 N. The sowing schedule for this variety is as follows: indoors, 6 to 8 weeks before the last frost. Transplant young flowers when their true leaves have developed and their roots hold the soil ball. Handle seedlings gently and avoid compressing the stem. Under grow lights, progressively space out the containers so that the foliage does not overlap. Acclimatization then prepares the plants for sun, wind, and temperature variations. Planting outdoors occurs when conditions match their hardiness.
How to enjoy Delphinium Cheer Blue F1 in containers?
The foliage of this variety spreads about 25 cm (9.8 in); allow this width around the container instead of packing several plants tightly against its edge. Place the container of this variety in this exposure: full sun, checking the light received throughout the day. Plan the location of this variety in the flowerbed taking into account its height of 40 cm (15.7 in). When designing the planting, reserve 25 cm (9.8 in) of spread for each plant of this variety. Use this variety at the edge of an accessible landscape; its compact silhouette is best appreciated when taller plants do not enclose it from above.
How to combine Delphinium Cheer Blue F1 colors?
The nuances of this variety lend themselves to a composition with white flowers and green foliage; repeat the color at several points in the bed so that the eye circulates without multiplying the species. This variety flowers from May to July. Plan the placement of this variety in the bed taking into account its height of 40 cm (15.7 in). When designing the planting, reserve 25 cm (9.8 in) of spread for each plant of this variety. Use this variety as an edging for an accessible landscape; its compact silhouette is best seen when taller plants do not close in above it.
What location is suitable for Delphinium Cheer Blue F1?
To install this variety, first choose a location that matches its sun exposure: full sun. Indoors: A well-drained and porous seed starting mix is ideal to prevent overwatering. Outdoors: Cool, humus-rich soil. Plan for this variety's place in the bed, considering its height of 40 cm (15.7 in). When designing the planting, allow 25 cm (9.8 in) of spread for each plant of this variety. Use this variety along the edge of an accessible landscape; its compact silhouette is best appreciated when taller plants do not close in above it.
How to water Delphinium Cheer Blue F1 during its growth?
This variety benefits from soil that retains moisture during its growth; regular checks below the surface help intervene before wilting while avoiding oversaturating the root ball. During its flowering period from May to July, keep this variety accessible to remove damaged parts without crushing the still fresh flowers. Transplant into the garden with a mixture of half garden soil, half compost, in a sunny location, preferably well sheltered from prevailing winds. Stake them in early May, as they require strong stakes. Newly established plants require copious watering; thereafter, water at the first sign of wilting, as delphiniums dislike humidity.