Tulipa 'United States' (14) | tulip 'United States'

Synonyms

Tulipa greigii 'United States'

Bulbs

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A striking cultivar with brightly-coloured, large flowers, in early spring, held to 25cm above mottled green and purple foliage. Petals are deep golden-yellow with a bold red mid-band above a yellow base and 2 fine lines of red extending to the petal tip

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0-0.1 metre

Size

Time to Maturity: 1–2 years
Max Spread: 0-0.1 metre
Max Height: 0.1-0.5 metres

Growing Conditions

Chalk Loam Sand

Moisture: Well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun

Aspect: South–facing or West–facing or East–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: Greigii Group tulips have large, single, bowl-shaped flowers in the range yellow to red, often with contrasting margins, and flower in early and mid-spring; the grey-green leaves are usually mottled with purple or maroon

How to Grow

Cultivation

Plant 10 to 15cm deep in fertile, well-drained soil. 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
Coastal
Cottage and informal garden
Patio and container plants
Rock garden
Flower borders and beds
Garden edging

Pruning

Deadhead after flowering

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