Index / Search / Phacelia tanacetifolia
§1 Plant
Phacelia tanacetifolia Benth.
vernacular lacy phacelia — species · Hydrophyllaceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb
- Duration
- Annual
- Group
- Dicot
- Family
- Hydrophyllaceae R. Br.
- Genus
- Phacelia
§2a
Native status, by region
- CAN Canada Introduced
- L48 Lower 48 States Native
§2b
County-level range
· 42 counties across 6 states/territories§3Cultivation specs · USDA
Recorded by the USDA Plant Materials Program.
§3a
Tolerances
- Drought
- Medium
- Shade
- High
- Moisture use
- Medium
- Fire
- Medium
- Salinity
- Low
- Anaerobic
- High
- CaCO₃
- Medium
- Hedging
- None
§3b
Climate & soil
- Cold tolerance
- 52 °F minimum
- Frost-free days
- 100 min.
- Precipitation
- 8–18 in/yr
- pH range
- 6.4–8.6
- Root depth
- 10 in min.
- Fertility need
- Low
- Soil texture
- coarse, medium, fine
§3c
Form & growth
- Growth form
- Single Crown
- Growth rate
- Rapid
- Mature height
- 4 ft
- Foliage texture
- Medium
- Foliage colour
- Green
- Porosity (summer)
- Porous
- Porosity (winter)
- Porous
- Flower colour
- Blue
- Fruit colour
- Brown
- Fire resistant
- No
- N fixation
- None
- Toxicity
- None
§3d
Reproduction
- Bloom period
- Early Spring
- Seed abundance
- Medium
- Seed begins
- Spring
- Seed ends
- Spring
- Spread rate
- Slow
- Stratify
- No
- Seeds / lb
- 244,944
- Propagation
- seed
§3e
Use & availability
- Commercial availability
- Contracting Only
- Nursery stock
- No
- Palatable, human
- No
- Lumber
- No
- Christmas tree
- No
§4Counties, by state
Recorded in 42 counties across 6 states/territories.
Arizona view state ↗ 2 N ▾
California view state ↗ 33 N ▾
- Alameda 06001
- Amador 06005
- Butte 06007
- Calaveras 06009
- Colusa 06011
- Contra Costa 06013
- Fresno 06019
- Inyo 06027
- Kern 06029
- Kings 06031
- Lake 06033
- Los Angeles 06037
- Madera 06039
- Marin 06041
- Merced 06047
- Monterey 06053
- Napa 06055
- Orange 06059
- Riverside 06065
- San Benito 06069
- San Bernardino 06071
- San Diego 06073
- San Joaquin 06077
- San Luis Obispo 06079
- Santa Barbara 06083
- Santa Clara 06085
- Solano 06095
- Stanislaus 06099
- Sutter 06101
- Tehama 06103
- Tulare 06107
- Ventura 06111
- Yolo 06113
Colorado view state ↗ 1 N ▾
Maine view state ↗ 1 N ▾
Michigan view state ↗ 1 N ▾
Oregon view state ↗ 4 N ▾
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/PHTA ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/2928226 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T20:46:58Z