Tweedy's Ivesia

Potentilla tweedyi

Native to:
United States
Tweedy's Ivesia

brewbooks (www.flickr.com) from near Seattle, USA

📍 View on iNaturalist →

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Rosaceae
Genus:
Potentilla
Species:
Potentilla tweedyi
USDA Symbol:
IVTW

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
25 cm
Light Requirements:
Full Sun
Drought Tolerance:
Medium
Bloom Months:
jun,jul,aug
Bloom Colors:
cream, yellow

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)

Keystone Species Ranking

Caterpillar Keystone:
★★☆☆☆ Butterfly & moth species supported by this genus (NWF)

Garden & Ecology Notes

Wildlife Value:
bees
Deer Resistant:
Yes

Soil Requirements

Soil Type:
rocky, well-drained, nutrient-poor soil
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
native to rocky mountainous regions

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–90 days
Germination Time:
14–42 days
Notes:
Seeds benefit from cold stratification. Surface sow as seeds may require light for germination.

The above propagation data sourced from Claude AI