Plant Data Sheet
Species (common name, Latin name)
Allium acuminatum, Hooker’s or Tapertip onion
East of the Cascades,
Common in dry, open, often rocky areas, low to moderate elevations in the mountains
Local occurrence (where, how common)
Dry, sunny, brushy or wooded slopes/summits/ & flats; in volcanic areas
Plant strategy type/successional stage
May be collected as: (seed, layered, divisions, etc.)
Seeds in late summer.
Propagation recommendations (plant seeds, vegetative parts, cuttings, etc.)
Reproduction by seeds. Seed - sow spring in a cold frame. Prick out the seedlings into individual pots when they are large enough to handle - if you want to produce clumps more quickly then put three plants in each pot. Grow them on in the greenhouse for at least their first winter and plant them out into their permanent positions in spring once they are growing vigorously and are large enough. Division in spring. Very easy, the plants divide successfully at any time in the growing season and the divisions can be planted straight out into their permanent positions if required.
Soil or medium requirements (inoculum necessary?)
Medium to course soils. pH between 6 and 8.
Care requirements after installed (water weekly, water once etc.)
Requires little moisture.
Normal rate of growth or spread; lifespan
Rapid growth rate. 1 foot mature height. Short lifespan.
Data Compiled by Robert Franco 5/27/06