Lilium regale (IXb/a)

Other common names

king's lily, royal lily

RHS Recommended

Bulbs

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A vigorous bulbous perennial to 2m in height, with narrow glossy green leaves and racemes of fragrant, trumpet-shaped white flowers 14cm in length, yellow in the centre and flushed with purple on the outside

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

1-1.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 2–5 years
Max Spread: 0.1-0.5 metres
Max Height: 1-1.5 metres

Growing Conditions

Chalk Clay Loam Sand

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

Position

Full sun

Aspect: North–facing or 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

Fragrance Flower

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: Ornamental bulbs - not to be eaten. Wear gloves and other protective equipment when handling. TOXIC to pets if eaten (cats) - see the HTA guide to potentially harmful plants for further information and useful contact numbers
Genus: Lilium are bulbous perennials with erect stems bearing whorled or spirally arranged leaves and terminal racemes or umbels of bowl-shaped, trumpet-shaped, funnel-shaped or turks cap shaped flowers, often fragrant, and white, yellow, orange or red
Name Status: Correct
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: These include lily species and cultivars of lily species with outward-facing flowers
Plant Range: SW China

How to Grow

Cultivation

Grow in well-drained soil enriched with leaf mould or well-rotted organic matter. See lilies and lilies for pots and borders for further advice

Propagation

Propagate by seed, sown, when ripe, in containers in a cold frame or separate offsets after the foliage dies down

Suggested planting locations and garden types

Cottage and informal garden
Cut flowers
Flower borders and beds

Pruning

No pruning required

Pests

May be susceptible to lily beetle, aphids, slugs, snails, thrips, leatherjackets, and wireworms, and to damage by rabbits and voles; plants in containers may be susceptible to vine weevil

Diseases

May be susceptible to grey moulds and a virus; see lily diseases