loading

Trillium grandiflorum

American wake-robin bulbs

Product Image
Trillium grandiflorum has been given the Award of Garden Merit by the Royal Horticultural Society for its top performance in the garden.

The luminous white flowers that often fade to pink are perfect for brightening up a shady, moist bed or woodland garden in mid to late spring. The large, broad-petalled flowers are a knockout.

These plants are quite hard to grow and will take some time to establish large clumps, so they are better suited to the more experienced gardener.

How to care for Trillium grandiflorum:

Plant rhizomes 5cm (2in) deep and 5cm (2in) apart in autumn, ideally in a part-shade, sheltered spot with rich, humus-rich, well-drained soil. Once planted, they should be left largely undisturbed to establish and gradually spread over the years.

Apply a generous autumn mulch of leaf mould or well-rotted compost to protect the rhizomes over winter and help retain moisture. Keep the soil consistently moist but not waterlogged during the growing season, and remove any weeds carefully to avoid disturbing the shallow roots.

Once established, the plants require only modest maintenance, and cutting back old foliage in late autumn or early winter keeps the bed tidy without harming the rhizomes.
Flowering period:
  • Jan
  • Feb
  • Mar
  • Apr
  • May
  • Jun
  • Jul
  • Aug
  • Sep
  • Oct
  • Nov
  • Dec
Eventual height:
0.4m
Eventual spread:
0.3m
Position:

Light shade / shade

Rate of growth:

Average

Soil:

Moderately fertile, moist, well-drained soil

Hardiness:

Fully hardy

  • InformationHumans/Pets: Ornamental bulbs - not to be eaten

Product options

Product options image
BU30000473
1 × rhizome
£9.99
available to order from summer
Unavailable
Product options image
BU30000764
3 × rhizomes
£27.00 £9.00 each
available to order from summer
Unavailable
1
Delivery options (pick your preferred option at checkout)
Bulbs (only)£4.99

Goes well with

Become an RHS Member today and save 25% on your first year