Not the plant you're looking for? Search over 300,000 plants

Bulbs

Lilium 'Grand Cru' (Ia/b)

lily 'Grand Cru'

An upright bulbous perennial with leafy stems bearing upward-facing, wide-open bright yellow flowers up to 15cm wide in mid summer, each petal with a deep red stain at the base

Other common names

lily 'Gran Cru'

Save to My plants

Ultimate height

0.5–1 metres

Time to ultimate height

2–5 years

Ultimate spread

0.1–0.5 metres

Chalk

Clay

Loam

Sand

Moisture

Moist but well–drained, Well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun

Aspect

West–facing or East–facing or South–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)

Botanical details

Family: Liliaceae
Native to GB / Ireland: No
Foliage: Deciduous
Habit: Bushy
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: Accepted
Horticultural Group: Division Ia lilies are early flowering Asiatic hybrids with alternate leaves and upright funnel-shaped flowers

How to grow

Cultivation

Grow in well-drained soil enriched with leaf mould or well-rotted organic matter

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

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

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

Get involved

The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.