Species
Bitterroot,
Lewisia rediviva
L. rediviva occurs in gravelly to dry
soils, from sagebrush plains to lower elevations in the mountains; from
southern B.C. to southeast Alberta, east of the Cascades in Washington and
Oregon south to California; east to Idaho, Montana, Wyoming, Colorado, Utah,
Nevada, and Arizona.(1)
L. rediviva grows in a wide range of
climates and can be found from 60 to 3000 m (2)
Local occurrence
L. rediviva occurs all along the east
side of the cascades (3)
Gravelly
to dry, heavy soil, commonly on lithosol, from
sagebrush plains to mid-elevations in the mountains (3)
L. rediviva is a late successional strategy type and it takes up too 3 or 4 years
to produce viable seeds. (2)
Springbeauty, minerslettuce, purslane,
talinopsis, pussypaws (2)
May be collected as:
Seed
Seeds
are collected in mid summer when the corolla turns papery and the disseminule breaks away from the
stem. Seeds are shiny black at maturity.(1)
Seed germination
Seed
dormancy is classified as physiological dormancy 60 to 90 day cold moist
stratification. Germination occurs in early spring at temperatures slightly
above freezing to 10c (1)
Seed life
Seed
storage is at least 5 years under cool, dry conditions(1)
Cool
dry conditions in a paper bag until planting time (2)
Conetainers are filled and sown in late fall and irrigated thoroughly prior to
winter stratification.
Seedlings germinate in spring under fluctuating outdoor temperatures and are
grown under full sun exposure. Plants are fertilized in the fall, pots are
flushed with water, and irrigation frequency is gradually reduced in June
through October. (1) The plant becomes dormant during the hot months and is
prone to being overwatered during this period (2)
Growing
media used is 6:1:1 milled spaghnum peat, perlite, and vermiculite (1)
L. rediviva grows in a wide range of
soils from shale, clay, sand, granite, serpintine,
and talus (2)
Installation form
Seed
During
the third or fourth year when the plants are dormant out-plant the plants in
full sun in a well drained soil. Plant the plants 4-6 inches apart and don’t
add any water, wait for the rains to come. (2)
Weed
periodically as the plants need full sun.
(2)
Plant
is mature within 3-4 years, the lifespan is not reported.
1. DeSanto, Jerry; Luna,
2.
USDA, NRCS. 2004. The PLANTS Database, Version 3.5 (http://plants.usda.gov). National Plant Data Center,
3.
Burke Museum of Natural History and Culture
Data compiled by
Pat
Kendzierski