Tulipa 'Callahan' (7/d)

Bulbs

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A perennial bulb, up to 50cm high, with broadly lance-shaped, grey-green leaves. Cup-shaped, double, vibrant bronze, copper, burnt orange and paprika-red flowers, appear from April to May

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Size

Time to Maturity: 1 year

Growing Conditions

Chalk Clay Loam Sand

Moisture: Moist but well–drained or Well–drained
pH

Position

Full sun

Aspect: South–facing or West–facing
Exposure: Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

H1A: under glass all year (>15C)
H1B: can be grown outside in the summer (10 - 15)
H1C: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20): H6

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Liliaceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Columnar upright
Potentially harmful: Harmful if eatenskin allergen. Wear gloves and other protective equipment when handling. Pets: Harmful if eatenskin allergen - for further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus: Tulipa are bulbous perennials with characteristic flowers, in a wide range of colours, in spring
Name Status: Accepted
Horticultural Group

Horticultural Classification Codes

Horticultural Classification Codes are often given to genera which have a large number of species or cultivars. They are used to categorise cultivated plants based on specific, shared characteristics such as shape, colour, size or flowering time, and can be displayed as letters or numbers

For example:
Dahlia ‘Sunset Kate (Sin) = Single flower
Rosa ‘Marigold’ (HT) = Hybrid Tea: Fringed Group tulips flower in late spring, with single, cup-shaped flowers with finely-fringed tepals

How to Grow

Cultivation

Plant 10 to 15cm deep in fertile, well-drained soil in a sunny position. Protect from excessive wet and shelter from strong winds. See tulip cultivation

Propagation

Propagate by lifting and separating offsets. See bulb propagation for further advice

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Patio and container plants
Cut flowers
Flower borders and beds
Underplanting of roses and shrubs

Pruning

Deadhead after flowering, and allow flower stem and foliage to die down naturally

Pests

May be susceptible to slugs, aphids and stem and bulb eelworm; squirrels may eat the bulbs

Diseases

May be susceptible to tulip fire and bulb rot in poorly drained soil