Trillium — 9 species
Botanical species in the genus Trillium recorded in the PlantPeers database.

Trillium erectum
Trillium erectum
Family: Melanthiaceae
Cultivation
Prefers a deep well-drained woodland or humus-rich soil in a somewhat shady position that remains moist in the summer. Prefers a neutral to slightly acid soil. Grows well in open deciduous woodland.
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Trillium grandiflorum
Trillium grandiflorum
Family: Melanthiaceae
Cultivation
Prefers a deep well-drained woodland or humus-rich soil in a somewhat shady position that remains moist in the summer. Prefers a neutral to slightly acid soil but succeeds in acid or limey soils. Grows well in open woodland.
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Trillium kamtschaticum
Trillium kamtschaticum
Family: Melanthiaceae
Cultivation
Prefers a deep well-drained woodland or humus-rich soil in a somewhat shady position that remains moist in the summer. Prefers a neutral to slightly acid soil. Grows well in open woodland.
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Trillium ovatum
Trillium ovatum
Family: Melanthiaceae
Cultivation
Prefers a deep well-drained woodland or humus-rich soil in a somewhat shady position that remains moist in the summer. Prefers a neutral to slightly acid soil. Grows well in open woodland.
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Trillium pendulum
Trillium pendulum
Family: Melanthiaceae
Cultivation
This species does not appear in the Flora of North America, and as such the name should be considered to be very dubious. Prefers a deep well-drained woodland or humus-rich soil in a somewhat shady position that remains moist in the summer. Prefers a neutral to slightly acid soil.
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Trillium sessile
Trillium sessile
Family: Melanthiaceae
Cultivation
Prefers a deep well-drained woodland or humus-rich soil in a somewhat shady position that remains moist in the summer. Prefers a neutral to slightly acid soil. Grows well in open woodland.
Full cultivation guide →
Trillium smallii
Trillium smallii
Family: Melanthiaceae
Cultivation
Prefers a deep well-drained woodland or humus-rich soil in a somewhat shady position that remains moist in the summer. Prefers a neutral to slightly acid soil. Grows well in open woodland.
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Trillium tschonoskii
Trillium tschonoskii
Family: Melanthiaceae
Cultivation
Prefers a deep well-drained woodland or humus-rich soil in a somewhat shady position that remains moist in the summer. Prefers a neutral to slightly acid soil. Grows well in open woodland.
Full cultivation guide →
Trillium undulatum
Trillium undulatum
Family: Melanthiaceae
Cultivation
Prefers a deep well-drained woodland or humus-rich soil in a somewhat shady position that remains moist in the summer. Prefers a neutral to slightly acid soil. This species is often found in quite acid soils, seldom in alkaline soils.
Full cultivation guide →