| Agave titanota | |
|---|---|
| |
| A. titanota, United States Botanic Garden (David Stang, 2006) | |
| Conservation status | |
 Endangered (IUCN 3.1) | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Asparagaceae |
| Subfamily: | Agavoideae |
| Genus: | Agave |
| Species: | A. titanota |
| Binomial name | |
| Agave titanota Gentry | |
Agave titanota, the chalk agave, is a species of flowering plant in the family Asparagaceae. It is a medium-sized evergreen succulent perennial native to Oaxaca, Mexico. It often reaches 1-2 feet tall and 2-3 feet wide.
The plant forms a solitary rosette of broad whitish green leaves with variable spines, which are 1-2 feet long and 5 inches wide, typically narrower toward the base and widest near the tip. Occasionally, it produces offsets. Mature plants may produce a flower head from 3m to 6m tall with yellow flowers. As it is monocarpic, this signals the death of the plant.
It can tolerate temperatures of −3 °C (27 °F), but in practice is best grown in a sheltered spot without severe frosts. It has gained the Royal Horticultural Society's Award of Garden Merit. This plant is suitable for USDA hardiness zones 9-11. It may be susceptible to scale insects and chlorosis resulting from magnesium deficiency.
Cultivars include 'White Ice', 'Filigree', and 'Solar Eclipse.'
References
- García-Mendoza, A.J.; Sandoval-Gutiérrez, D.; Casas, A.; Torres-García, I. (2020). "Agave titanota". IUCN Red List of Threatened Species. 2020: e.T115698292A116354558. doi:10.2305/IUCN.UK.2020-1.RLTS.T115698292A116354558.en. Retrieved 19 November 2021.
- "Agave titanota Gentry". The Plant List. Retrieved 5 January 2018.
- ^ "Agave titanota". Cactus Art Nursery. Retrieved 5 January 2018.
- ^ "Agave titanota, Rancho Tambor Agave, Succulent". www.smgrowers.com. Retrieved 2021-04-30.
- ^ Shoot. "Agave titanota Chalk Rancho Tambor Maguey Care Plant Varieties & Pruning Advice". www.shootgardening.co.uk. Retrieved 2021-04-30.
- ^ "Agave Titanota Care: Growing Rancho Tambor Agave Plants". Plant Care Today. 2019-11-11. Retrieved 2021-04-30.
- "Agave titanota". Royal Horticultural Society. 2012. Retrieved 5 January 2018.
| Taxon identifiers | |
|---|---|
| Agave titanota | |