Tulipa 'Royal Tower' (11) | tulip 'Royal Tower'

Bulbs

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A perennial bulb to around 50cm in height, with lance-shaped grey-green foliage and strong, upright stems producing large, peony-shaped double mango-orange flowers with a base layer of pale green petals, appearing in April to May

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 1 year
Max Spread: 0.1-0.5 metres
Max Height: 0.5-1 metres

Growing Conditions

Chalk Loam Sand

Moisture: Moist but well–drained or Well–drained
pH: Acid or Alkaline or Neutral

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: Unresolved
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: Double Late Group tulips flower in late spring, with large, fully double flowers, sometimes with a margin of a different colour

How to Grow

Cultivation

Plant bulbs in late autumn, at a depth of 10-15cm (4-6in) in fertile, well-drained soil. Choose a sunny position, with protection from strong winds and excess winter wet. Lift bulbs annually, once the leaves have died down, and ripen in a cool greenhouse, keeping dry over the summer. See tulip cultivation for more details

Propagation

Propagate by lifting and separating offsets. See bulb propagation

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
Wall side borders

Pruning

Deadhead after flowering; allow 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