Centaurea cyanus 'Jubilee Gem' (Cornflower 'Jubilee Gem')

Botanical name

Centaurea cyanus 'Jubilee Gem'

Other names

Cornflower 'Jubilee Gem', Blue-bottle 'Jubilee Gem', Bachelor's buttons 'Jubilee Gem'

Genus

Centaurea Centaurea

Variety or Cultivar

'Jubilee Gem' _ 'Jubilee Gem' is an upright, compact, branching annual with lance-shaped, sometimes pinnate, grey-green leaves and solitary, blue flower heads in late spring and throughout summer.

Foliage

Deciduous

Habit

Branching, Compact, Upright

---

Colour

Flower

Blue in Spring; Blue in Summer

Foliage

Grey-green in Spring; Grey-green in Summer; Grey-green in Autumn

---

How to care

Watch out for

Pests

Generally pest free

Specific diseases

Powdery mildew

General care

Pruning

Deadhead regularly to extend the flowering season.

---

Monthly care advice

---

Where to grow

Centaurea cyanus 'Jubilee Gem' (Cornflower 'Jubilee Gem') will reach a height of 0.3m and a spread of 0.2m after 1-2 years.

Suggested uses

Beds and borders, Bees (attract & feed bees), Coastal, Containers, Flower Arranging, Wildflower, Wildlife

Cultivation

Grow in well-drained soil in full sun. Autumn sowing will produce earlier-flowering plants.

Soil type

Loamy, Sandy

Soil drainage

Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Full Sun

Aspect

South, West

Exposure

Exposed, Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4)

USDA zones

Zone 10, Zone 9, Zone 8, Zone 7, Zone 6, Zone 5, Zone 4, Zone 3, Zone 2