Ram's Horn
Proboscidea louisianica
- Native to:
- Mexico, United States
Juan Carlos Fonseca Mata
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Martyniaceae
- Genus:
- Proboscidea
- Species:
- Proboscidea louisianica
- USDA Symbol:
- PRLO
Growth Characteristics
- Life Cycle:
- Annual
- Growth Habit:
- Forb/herb
- Height:
- 60 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Medium
- Bloom Months:
- jun,jul,aug,sep
- Bloom Colors:
- white, pink, purple, yellow
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Caterpillars:
- ★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)
Host Plant for Caterpillars
Isabella tiger moth (Pyrrharctia isabella), Virginia Tiger Moth (Spilosoma virginica)
Reported Fauna Sightings
Moths:Chloridea virescens, tobacco hornworm (Manduca sexta)
Garden & Ecology Notes
- Wildlife Value:
- bees
- 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 and semi-arid regions
Propagation & Germination
- Stratification:
- None required
- Germination Time:
- 10–21 days
- Notes:
- Seeds germinate readily in warm soil; best sown after last frost when soil temperatures reach 70°F or above.
The above propagation data sourced from Claude AI
Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).; then Scarify, then cold-moist stratify for 60 days.
Source: Claude AI
ORGHPS Germination Guide: Sow @ 20C. Germinates within 3 months.