Watson's Snapdragon
Sairocarpus watsonii
- Native to:
- Mexican Pacific Is., Mexico, United States
Source: Wikimedia; Credit: <p>Watson, Sereno, 1826-1892; Eaton, Daniel Cady, 1834-1895; </p> United States. Geological Exploration of the 40th Parallel. Report. v. 5,Source: Wikimedia; Credit: Jim Morefield from Nevada, USA https://www.flickr.com/people/127605180@N04,Source: Wikimedia; Credit: Jim Morefield from Nevada, USA https://www.flickr.com/people/127605180@N04,Source: Wikimedia; Credit: Jim Morefield from Nevada, USA https://www.flickr.com/people/127605180@N04,Source: Wikimedia; Credit: Jim Morefield from Nevada, USA https://www.flickr.com/people/127605180@N04,Source: Wikimedia; Credit: Jim Morefield from Nevada, USA https://www.flickr.com/people/127605180@N04
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Plantaginaceae
- Genus:
- Sairocarpus
- Species:
- Sairocarpus watsonii
- USDA Symbol:
- SAWA2
Growth Characteristics
- Life Cycle:
- Annual
- Growth Habit:
- Forb/herb
- Height:
- 100 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Medium
- Bloom Months:
- apr,may,jun
- Bloom Colors:
- purple, lavender, white
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
Garden & Ecology Notes
- Wildlife Value:
- bees, butterflies
- Deer Resistant:
- Yes
Soil Requirements
- Soil Type:
- sandy, 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 arid regions, prefers open, rocky areas
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds benefit from light for germination; surface sow and provide cold stratification.
The above propagation data sourced from Claude AI