(common name, Latin name)
Yarrow is distributed throughout the
Yarrow is generally found at elevations of 1200-3350 m but can also be found as low as sea level.
occurrence (where, how common)
route 520 at Montlake, 1 plant.
Yarrow grows in meadows and pastures, along stream edges, in sand dunes, and along the edge of woodlots. It tends to grow on poor soils and is very drought tolerant.
strategy type/successional stage (stress-tolerator, competitor,
weedy/colonizer, seral, late successional)
May be collected as: (seed, layered, divisions, etc.)
Flowering starts in April at lower elevations continuing through September at higher elevations. Fruiting occurs during August and September.
restrictions or guidelines
Collect seed heads and allow them to air dry indoors for at least a week before cleaning.
Crush the heads with a rolling pin to remove the nutlets, then sieve the nutlets and chaff to separate the seed. Cold store dry seeds in a sealed container.
germination (needs dormancy breaking?)
Seeds are nondormant and
germinate over a variety of temperatures.
life (can be stored, short shelf-life, long shelf-life)
dried, seeds can be stored for a medium amount of time.
seed storage conditions
Cold store dry seeds in a sealed container.
recommendations (plant seeds, vegetative parts, cuttings, etc.) Sow
indoors in late winter and transfer to larger containers in six weeks, or sow
outdoors in late April.
Soil or medium requirements (inoculum necessary?)
May be grown in
well-drained, moist soil but they establish best with the addition of
fertilizer. They grow best in full sun,
but will tolerate some shade.
form (form, potential for successful outcomes, cost)
Seed, seedlings are the best form for installation.
requirements after installed (water weekly, water once etc.)
Moderate to no
watering after it is established.
rate of growth or spread; lifespan
lifespan, up to 3 feet tall.
Plants database http://plants.usda.gov/cgi_bin/topics.cgi