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| Category: Succulent |
| Family: Agavaceae (now Asparagaceae) |
| Origin: Mexico (North America) |
| Evergreen: Yes |
| Yellow/Chartreuse Foliage: Yes |
| Variegated Foliage: Yes |
| Flower Color: Yellow Green |
| Bloomtime: Infrequent |
| Parentage: (A. americana var. striata sport) |
| Height: 4-6 feet |
| Width: 6-8 feet |
| Exposure: Full Sun |
| Summer Dry: Yes |
| Deer Tolerant: Yes |
| Irrigation (H2O Info): Low Water Needs |
| Winter Hardiness: 15-20° F |
| May be Poisonous (More Info): Yes |
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Agave americana 'Joanna' (Yellow-banded Century Plant) - This large succulent is slightly smaller than the species but still grows to an impressive 5 to 6 feet tall and 6 to 8 feet wide. It has long gray glaucous leaves with a central broad band of yellow lines. As with the species, there are recurved spines on the margins and a long terminal spine. Yellow-green flowers attract hummingbirds, however the Century Plant doesn't bloom until it is a decade or so old (not a century!) and the flowering plant dies after flowering. Plant in full sun. Irrigate occasionally to not at all. Cold hardy to 15 degrees F. This plant was a selected mutation of Agave americana var. striata that was noticed by San Marcos Growers supervisor Arturo Garcia and it is named for his daughter.
This information about Agave americana 'Joanna' displayed is based on research conducted in our library and from reliable online resources. We will also note observations that we have made about it as it grows in the gardens in our nursery and those elsewhere, as well how the crops have performed in containers in our nursery field. We will also incorporate comments we receive from others, and we welcome hearing from anyone with additional information, particularly if they can share cultural information that would aid others in growing it.
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