Adams Needle Yucca (Yucca filamentosa)

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Adams Needle Yucca Plant Care

Yucca filamentosa L.

Yucca filamentosa, Adam's needle and thread, is a species of flowering plant in the family Asparagaceae native to the southeastern United States. Growing to 3 metres tall, it is an evergreen shrub valued in horticulture.

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Water

Every 14–21 days

Light

Full sun to partial shade

Temp

50–85°F

Humidity

30–60%

What Is the Adams Needle Yucca?

Adams Needle Yucca (Yucca filamentosa) belongs to the Asparagaceae family within the Yucca genus. Adams Needle Yucca is native to the southeastern United States. Adams Needle Yucca is also known as Adam's Needle, Common Yucca, Threadleaf Yucca.

Adams Needle Yucca displays an upright, architectural growth habit, reaching up to 6 inches tall with a spread of approximately 3 inches. Adams Needle Yucca produces creamy-white, bell-shaped flowers on tall spikes.

Leaf size: approximately 18 inches.

How Often Should You Water a Adams Needle Yucca?

Yucca filamentosa requires watering every 14–21 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.

Watering Frequency

Every 14–21 days

Let soil partially dry between waterings

What Light Does the Adams Needle Yucca Need?

Adams Needle Yucca thrives in full sun to partial shade light conditions. The optimal light range is 2000–4000 lux. Avoid placing Adams Needle Yucca in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Light Requirement

Full sun to partial shade

2000–4000 lux

What Temperature and Humidity Does the Adams Needle Yucca Prefer?

Yucca filamentosa grows best at temperatures between 50°F and 85°F. Adams Needle Yucca prefers humidity levels of 30–60%.

Temperature

50–85°F

Humidity

30–60%

What Soil Mix Works Best for a Adams Needle Yucca?

Sandy, well-draining soil mix with added perlite and gravel for good drainage. Good drainage is essential for Adams Needle Yucca to prevent waterlogging, which leads to root rot and fungal issues.

How Do You Repot a Adams Needle Yucca?

Repot every 2-3 years in spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.

How Do You Propagate a Adams Needle Yucca?

Adams Needle Yucca can be propagated through offsets (pups), seeds. Similar propagation techniques also apply to joshua tree plant care, which shares the same genus.

Fertilizing

Every 8 months

During the growing season

Is the Adams Needle Yucca Toxic to Pets and Children?

Toxic to Pets & Children

Mildly toxic to humans and pets if ingested

What Pests and Diseases Affect the Adams Needle Yucca?

Adams Needle Yucca is susceptible to aphids, spider mites, scale insects. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.

What USDA Hardiness Zone Does the Adams Needle Yucca Need?

Adams Needle Yucca grows outdoors in USDA Zone 4a – 10b. Native to the southeastern United States, Adams Needle Yucca is adapted to warm climates. In cooler regions, grow Adams Needle Yucca as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 4a – 10b

Keep exploring plants

Adams Needle Yucca is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.

It belongs to the Yucca genus — compare its care with other Yucca species on PlantoScan.

Adams Needle Yucca tolerates low-light rooms and shaded spots — browse the full list of low-light plants.

More Yucca Species

Other Yucca species in PlantoScan's care catalogue share similar watering, light, and soil preferences:

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