Havard's Century Plant
Agave havardiana
- Native to:
- Mexico, United States
Daderot






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Asparagaceae
- Genus:
- Agave
- Species:
- Agave havardiana
- USDA Symbol:
- AGHA
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb , Shrub , Subshrub
- Height:
- 180 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- High
- Bloom Months:
- may,jun,jul
- Bloom Colors:
- yellow, cream
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Hummingbirds:
- ★☆☆☆☆ Documented hummingbird visits (GBIF)
Garden & Ecology Notes
- Wildlife Value:
- bats, hummingbirds, bees
- Deer Resistant:
- Yes
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Rosettes can survive low-intensity fires due to thick succulent leaves. May resprout from base or produce offsets after fire damage to main rosette.
Soil Requirements
- Soil Type:
- rocky, well-drained, alkaline soil
- pH:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- native to rocky limestone slopes
Propagation & Germination
- Stratification:
- None required
- Germination Time:
- 7–21 days
- Notes:
- Seeds germinate readily at warm temperatures (70-80°F). Plants are monocarpic, flowering once after 15-25 years then dying.
The above propagation data sourced from Claude AI