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Trillium grandiflorum
Trillium grandiflorum
Trillium grandiflorum
Trillium grandiflorum

Trillium grandiflorum

TAXONOMY

FamilyMelanthiaceae
GenusTrillium
Zone4

ABOUT

Trillium grandiflorum, commonly known as the white trillium or large-flowered trillium, is a perennial herbaceous plant native to the eastern North American forests. It is known for its striking three-petaled white flowers that bloom in spring. The plant grows from a rhizome and prefers temperate climates. It undergoes a dormancy period during the winter months.

ALSO KNOWN AS

Large-flowered trillium
Trillium chandleri
Trillium chandleri f. foliaceum
Trillium chandleri f. gladewitzii
Trillium chandleri f. palaceum
Trillium chandleri f. plenum
Trillium chandleri f. subulatum
Trillium erythrocarpum
Trillium grandiflorum f. chandleri
Trillium grandiflorum f. dimerum
Trillium grandiflorum f. divisum
Trillium grandiflorum f. elongatum
Trillium grandiflorum f. grandiflorum
Trillium grandiflorum f. lirioides
Trillium grandiflorum f. petalosum
Trillium grandiflorum f. polymerum
Trillium grandiflorum f. regressum
Trillium grandiflorum f. roseum
Trillium grandiflorum f. striatum
Trillium grandiflorum f. viride
Trillium grandiflorum var. lirioides
Trillium grandiflorum var. minimum
Trillium lirioides
Trillium lirioides f. albomarginatum
Trillium lirioides f. giganteum
Trillium lirioides f. subsessile
Trillium lirioides f. ungulatum
Trillium lirioides f. variegatum
Trillium lirioides var. longepetiolatum
Trillium liroides f. vegetum
Trillium obcordatum
Trillium rhomboideum var. grandiflorum
Trillium scouleri

OVERVIEW

WaterWet
SoilLoamy
LightIndirect Bright (6 Hours)
Temperature15° C
Humidity60%
Dormancy4 Months
pH6.5
Pressure1,013 mbar

DETAILS

Care Instructions
White trillium thrives in temperate climates with moderate temperatures. It prefers bright, indirect light and should be kept in a location that mimics its natural forest floor habitat. Maintain moderate humidity levels and ensure the soil remains evenly moist but not waterlogged.
Soil
Trillium grandiflorum prefers well-draining loamy soil that is rich in organic matter. The soil should be kept evenly moist, and good drainage is essential to prevent root rot. A slightly acidic to neutral pH is ideal.
Fertilizer
Use a balanced fertilizer with an N-P-K ratio of 10-10-10. Fertilize the plant in early spring before the flowering period and again in late summer. Avoid over-fertilizing, as this can harm the plant.
Repotting
Repotting is generally not necessary for Trillium grandiflorum, as it prefers to remain undisturbed. If repotting is required, do so in early spring before new growth begins. Carefully transplant the rhizomes into fresh, well-draining soil.
Propagation
Trillium grandiflorum can be propagated by division or from seed. Division is best done in early spring or late summer. Carefully separate the rhizomes and replant them in suitable soil. Seed propagation is slow and can take several years to produce flowering plants.
Pruning
Pruning is not required for Trillium grandiflorum. Remove any dead or damaged leaves to maintain the plant's appearance and health. Allow the foliage to die back naturally after the flowering period.
Toxicity
Trillium grandiflorum is not known to be toxic to pets or humans. However, it is always best to handle plants with care and avoid ingestion.
Additional
Trillium grandiflorum is a protected species in some areas due to its declining natural habitat. It is important to source plants from reputable nurseries and avoid wild collection. The plant is also a favorite among woodland gardeners for its early spring blooms and naturalizing ability.
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