Idaho Trillium
Trillium petiolatum
zones 3-6
35 seeds
Idaho Trillium is native to Idaho, eastern Washington, and Oregon. It bears leaves on long stalks and features flowers with dark red-brown petals. It is unusual among Trillium species as it has round petiolate leaves and the flowers bloom close to the ground as opposed to most other Trillium species which flower above the leaves. The flowers are hermaphrodite (have both male and female organs) and are commonly pollinated by flies. It generally flowers from early April to late May. The plant is small, measuring just a few inches tall. It can be found near stream beds, under scrub brush, and near the edges of forests.
Idaho Trillium is fairly easy to grow. It prefers a deep well-drained woodland or humus-rich soil in a shady position that remains moist in the spring. It can be propagated by seed though it may take two to three years to germinate and another two to four years to bloom. Fresh seeds produce the most reliable germination. Old and dried seeds may produce some seedlings, but the germination percentage will be low and takes longer to germinate. Trillium seed require a double dormancy, a warm-cold-warm period and a second warm-cold-warm period. If seed are planted and left outdoors, they usually begin germination during the second year. Plant the seeds ½ inch deep in rich, loamy soil.
Trillium petiolatum
zones 3-6
35 seeds
Idaho Trillium is native to Idaho, eastern Washington, and Oregon. It bears leaves on long stalks and features flowers with dark red-brown petals. It is unusual among Trillium species as it has round petiolate leaves and the flowers bloom close to the ground as opposed to most other Trillium species which flower above the leaves. The flowers are hermaphrodite (have both male and female organs) and are commonly pollinated by flies. It generally flowers from early April to late May. The plant is small, measuring just a few inches tall. It can be found near stream beds, under scrub brush, and near the edges of forests.
Idaho Trillium is fairly easy to grow. It prefers a deep well-drained woodland or humus-rich soil in a shady position that remains moist in the spring. It can be propagated by seed though it may take two to three years to germinate and another two to four years to bloom. Fresh seeds produce the most reliable germination. Old and dried seeds may produce some seedlings, but the germination percentage will be low and takes longer to germinate. Trillium seed require a double dormancy, a warm-cold-warm period and a second warm-cold-warm period. If seed are planted and left outdoors, they usually begin germination during the second year. Plant the seeds ½ inch deep in rich, loamy soil.
Trillium petiolatum
zones 3-6
35 seeds
Idaho Trillium is native to Idaho, eastern Washington, and Oregon. It bears leaves on long stalks and features flowers with dark red-brown petals. It is unusual among Trillium species as it has round petiolate leaves and the flowers bloom close to the ground as opposed to most other Trillium species which flower above the leaves. The flowers are hermaphrodite (have both male and female organs) and are commonly pollinated by flies. It generally flowers from early April to late May. The plant is small, measuring just a few inches tall. It can be found near stream beds, under scrub brush, and near the edges of forests.
Idaho Trillium is fairly easy to grow. It prefers a deep well-drained woodland or humus-rich soil in a shady position that remains moist in the spring. It can be propagated by seed though it may take two to three years to germinate and another two to four years to bloom. Fresh seeds produce the most reliable germination. Old and dried seeds may produce some seedlings, but the germination percentage will be low and takes longer to germinate. Trillium seed require a double dormancy, a warm-cold-warm period and a second warm-cold-warm period. If seed are planted and left outdoors, they usually begin germination during the second year. Plant the seeds ½ inch deep in rich, loamy soil.