Every garden needs at least one dramatic plant to take center stage, and yucca, or Adam’s needle (Yucca filamentosa), fits the bill perfectly. The bold plant spares no expense when it comes to height and big blooms. Yucca celebrates the arrival of summer with flowering stalks that tower 5 to 8 feet above its tall, sword-shaped green leaves. Creamy, bell-shaped blooms nod lazily in the breezes of June and July. Though the plant is a showstopper, it’s not a diva. It is exceptionally tolerant of urban conditions and can take drought, heat, and blazing sun without the slightest bit of wilting.

Common name: Yucca, Adam’s needle   
Botanical name: Yucca filamentosa
Plant type: Evergreen
Zones: 4 to 11
Height: Foliage is about 30 inches tall; flower stalk 4 to 8 feet
Family: Agavaceae

Growing conditions
    Sun: Full sun; some tolerance for part shade
•    Soil: Light, sandy, well-drained
•    Moisture: Dry to medium

Care
•    Mulch: None needed.
•    Pruning: Remove the flower stalk once blooming is done.
•    Fertilizer: None needed.

Propagation
•    By seed or by division.

Pests and diseases
•    No major insect or disease problems.

Garden notes
•    Y. filamentosa looks great in borders, on dry slopes, and in dry garden areas.
•    Yucca is very difficult to eradicate once it’s established, so plant it in a spot where you want it to stay permanently.
•    A yucca plant will produce pups, or offshoots. You can leave these where they are or transplant them.
•    A yucca hedge makes a very effective barrier.

All in the family
•    The species name, filamentosa, refers to the twisted threadlike filaments at the edge of the leaves.
•    A few other yucca species look very much like Y. filamentosa: weakleaf yucca (Y. flaccida), soapweed (Y. glauca), and Y. smalliana.
•    Familiar plants related to the yucca include agave and Joshua tree.

Where to buy
•    Forestfarm, Williams, OR, 541-846-7269, www.forestfarm.com
•    Shooting Star Nursery, Georgetown, KY, 866-405-7979, www.shootingstarnursery.com
•    SmartSeeds, Claremont, CA, 909-576-6206, www.smartseedstore.com

(Text by Elyse Lucas, photo courtesy of Kemper Center for Home Gardening at the Missouri Botanical Garden)