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Bulbs

Tulipa praestans 'Unicum' (15/v)

tulip 'Unicum'

A bulbous perennial, 20-25cm high, with leaves variegated with creamy-white margins and from one to five bright red flowers per stem in mid-spring. Each flower with small, light yellow bases and blue-black anthers

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Ultimate height

0.1–0.5 metres

Time to ultimate height

1–2 years

Ultimate spread

0–0.1 metre

Chalk

Loam

Sand

Moisture

Well–drained

pH

Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun

Aspect

South–facing or West–facing or East–facing

Exposure

Sheltered

Drought resistance

Yes

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)

Botanical details

Family: Liliaceae
Native to GB / Ireland: No
Foliage: Deciduous
Habit: Clump forming
Potentially harmful: Harmful if eaten, skin allergen. Wear gloves and other protective equipment when handling. Pets: Harmful if eaten, skin 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: Miscellaneous tulips include all species and hybrids not otherwise classified

How to grow

Cultivation

Plant 15-20cm deep from mid-autumn to late autumn in a rock garden or in containers, in fertile, preferably neutral or alkaline soil that is free-draining but also able to hold moisture when the bulbs are in full growth, in full sun and with shelter from strong winds; in summer, remove old yellow foliage, and keep soil dry; for more advice, see tulip cultivation

Propagation

Propagate by division of offsets, re-planting the larger bulbs and growing on the smaller bulbs in a nursery bed, or by bulb propagation

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Patio and container plants
Gravel garden
Rock garden
Cut flowers
Flower borders and beds

Pruning

No pruning required

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

Get involved

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