Longbeak Arrowhead
Sagittaria australis
- Native to:
- United States
Judy Gallagher (www.flickr.com)
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Alismataceae
- Genus:
- Sagittaria
- Species:
- Sagittaria australis
- USDA Symbol:
- SAAU2
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 120 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- jun,jul,aug,sep,oct
- Bloom Colors:
- white
Keystone Species Ranking
- Caterpillar Keystone:
- ★★☆☆☆ Butterfly & moth species supported by this genus (NWF)
Garden & Ecology Notes
- Wildlife Value:
- waterfowl, birds, muskrats, turtles
Soil Requirements
- Soil Type:
- rich, moist, organic soil
- pH:
- 5.5 - 7.5 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- Commonly found in wetlands and marshes
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds germinate best when surface sown in saturated or submerged soil with light exposure.
The above propagation data sourced from Claude AI
Pre-treatment: Seeds are stored in zip-lock-type plastic bags in moist medium at 42°F or in cold water (42°F changed monthly to reduce algal growth) for up to 6 months. This cold moist condition serves as a stratification process.
Source: npn.rngr.net