TRILLIUM RIVALE Pseudotrillium
Pseudotrillium is known by the common name brook wakerobin, is endemic to the Siskiyou Mountains of southern Oregon and northern California. The Latin specific epithet rivale means “growing by streams, with reference to a preferred habitat.
Pseudotrillium rivale is a rhizomatous herbaceous perennial growing up to 20 cm (7.9 in) in height. Single nodding non-fragrant flowers have pink-blushed white petals up to 3 cm (1.2 in) long by 2 cm (0.8 in) wide. The plant flowers April to June (late March to early May at the higher elevations). After flowering, the entire plant may enlarge and become more robust and turgid with very glossy leaves.
Under its former name, Trillium rivale, this plant has gained the Royal Horticultural Society's Award of Garden Merit.
Seeds are very rare and limited supply.
Type: Hardy perennial
Hardiness zones: 5-8
Seeds per pack: 3
Germination: Seeds should be planted outdoors in late summer or fall, so that they will benefit from the cool and fluctuating temperatures of winter. In spring they will sprout, so be sure to mark the location that you planted the seeds. Please note, these seeds cannot grow without this cold period, so patience is required, though they are well worth the wait!
If you would prefer to start your seeds indoors, they will require a pattern of warm and cold periods. Once you receive your seeds, plant them in a pot, just under the surface of the soil. Water, and place at room temperature for 1 month. The seeds will not grow yet. Then, place the container in a clear plastic bag, and label the seeds (note the seeds are poisonous if eaten). Place the pot in a refrigerator for 3 months. Then, bring the pot back to warmth (room temperature). The seeds should germinate within 3 months, though if no growth appears, the seeds can be returned to the fridge for a second cold period (3 months).