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Trillium grandiflorum

American wake-robin

A table displaying which months are best to sow, plant and harvest.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Flowers
Flowers

Plant does not flower in January

Plant does not flower in February

Plant does not flower in March

Plant does flower in April

Plant does flower in May

Plant does flower in June

Plant does not flower in July

Plant does not flower in August

Plant does not flower in September

Plant does not flower in October

Plant does not flower in November

Plant does not flower in December

  • Botanical name: Trillium grandiflorum
  • Common name: American wake-robin
  • Family: Trilliaceae
  • Plant Type: Perennial
Flower colour:

White

Foliage colour:

Green

Trilliums are spring-flowering woodland plants, native to North America and Asia. Some have bright flowers and variegated foliage, others have fresh green leaves and white flowers. They thrive in sheltered, shady gardens in moist but well-drained soil.

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Trillium grandiflorum has striking, clover-like foliage, which contrasts with three-cornered flowers from late spring to early summer. The foliage looks good long after the flowers are over. This is a superb plant for a woodland garden, and it associates well with plants such as epimediums which like the same conditions. Once established it dislikes disturbance.

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For best results grow Trillium grandiflorum in moist but well-drained, neutral to acidic soil in shade, and combine with other shade-loving plants such as epimediums. Plants may be propagated from seed but will take three years to flower. Given the right conditions, established plants are long-lived.

How to grow Trillium grandiflorum

  • Plant size

    40cm height

    30cm spread

  • Aspect

    North facing, east facing, south facing, west facing

  • Sun exposure: Dappled shade, full shade
  • Hardiness: Hardy
  • Soil type: Well drained / light / sandy / clay / heavy / moist / acidic

Plant calendar

A table displaying which months are best to sow, plant and harvest.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sow
Sow

Do not Sow in January

Do not Sow in February

Do Sow in March

Do Sow in April

Do Sow in May

Do not Sow in June

Do not Sow in July

Do not Sow in August

Do not Sow in September

Do not Sow in October

Do not Sow in November

Do not Sow in December

Plant
Plant

Do not Plant in January

Do not Plant in February

Do not Plant in March

Do not Plant in April

Do Plant in May

Do Plant in June

Do not Plant in July

Do not Plant in August

Do not Plant in September

Do not Plant in October

Do not Plant in November

Do not Plant in December

Flowers
Flowers

Plant does not flower in January

Plant does not flower in February

Plant does not flower in March

Plant does flower in April

Plant does flower in May

Plant does flower in June

Plant does not flower in July

Plant does not flower in August

Plant does not flower in September

Plant does not flower in October

Plant does not flower in November

Plant does not flower in December

Trillium grandiflorum and wildlife

Trillium grandiflorum has no particular known value to wildlife in the UK.

Is Trillium grandiflorum poisonous?

Trillium grandiflorum has no toxic effects reported.

No reported toxicity to:

No reported toxicity to Birds

No reported toxicity to Cats

No reported toxicity to Dogs

No reported toxicity to Horses

No reported toxicity to Livestock

No reported toxicity to People

Plants that go well with Trillium grandiflorum