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Adam's needle

Adam's needle

Yucca filamentosa
A virtually stemless, broadleaf-evergreen native of central and eastern North America: a basal rosette of rigid, sword-shaped, spine-tipped leaves up to 30 inches long, fringed along the margins with the curly white threads that give the species its name. In early summer a flowering stalk shoots from the center to 5-8 feet, carrying nodding, bell-shaped, creamy-white flowers. Tough enough for poor sandy soil, heat, drought, and salt spray, it earns its keep as architectural structure in dry and seaside gardens.
Native: 29 US states
Climate fit: broad (78/100)
Structure
Focal point
Border
Light
Full sun / Part shade
Water
Low water
Mature size
48-96" tall · 36" apart
Hardy in zones
5a-10b
very cold to mild winters
AHS heat range
6-12
Plant range authored in AHS heat-zone terms.
Native in Illinois
Yes

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A documented larval host for the Skipper butterflies — specialist wildlife that depend on plants like this to reproduce.

Cold hardiness

These values are location-based: this location's current hardiness is the baseline, and the 2050 value is a projected future climate for this same location.
Now
Zone 6b
Plotwright
USDA Zone 6b
-5°F to 0°F
Well-suited
Zone 7a
Plotwright
0°F to 5°F
Well-suited
In plain terms: This location has cold winters. Its winters are projected to keep warming through 2050.
Well-suited today and still thriving in 2050.

Heat tolerance

Heat tolerance values are location-based too: heat days today are observed at this site, and the 2050 value projects this same location under a future climate.
Loading AHS heat-zone data for this location...

Similar plants

Browse lateral options with similar roles, light needs, size, or native-range overlap; these are not filtered for a better climate fit.
Hydrangea quercifolia
Oakleaf hydrangea
A four-season native shrub of the southeastern United States, where NC State Extension notes it grows wild in moist woods and along stream banks. It is an upright, multi-stemmed deciduous shrub, slow-growing to roughly 4-8 feet tall and 4-10 feet wide, named for its large, oak-shaped, lobed dark-green leaves. Showy pyramidal 4-12 inch panicles of creamy-white flowers open from late spring into summer and fade to pink and then tan, while the bold foliage turns wine, orange, and mahogany in fall over peeling cinnamon bark. Easy and low-maintenance in organically rich, well-drained soil, it is grown as a specimen, in masses, or as an informal hedge.
Shrub
Full sun / Part shade
Moderate water
Zones 5a-9b
Climate: moderate
Focal point
Structure
Border
Pollinator
Rhododendron catawbiense
Catawba rhododendron
A large, rounded, multi-stemmed broadleaf evergreen shrub of the southern Appalachians — typically 6-10 feet tall (rarely to 20) with glossy dark green leaves and showy compact terminal trusses of 15-20 funnel-shaped lavender-pink flowers in mid to late spring. Native from Virginia to Kentucky south to Georgia and Alabama, where it forms dense thickets on rocky high-elevation slopes and ridges. Prefers cool summers, acidic moist-but-well-drained soil, and part shade; all parts are highly toxic if ingested.
Shrub
Part sun / Part shade
Consistent moisture
Zones 4a-8b
Climate: moderate
Structure
Focal point
Border
Thuja occidentalis
American arborvitae
A dense, conical-to-narrow-pyramidal evergreen tree native to eastern and central North America, prized as a screening and foundation conifer. Flat, fan-like sprays of scale-like, aromatic yellow-green foliage clothe the tree from the ground up, and red-brown bark exfoliates on mature trunks. Wild trees can reach 40-60 feet but cultivated plants typically stay near 20-30 feet; small urn-shaped cones and dense evergreen cover make it valuable food and shelter for birds.
Tree
Full sun / Part sun / Part shade
Consistent moisture
Zones 2a-7b
Climate: broad
Structure
Focal point
Border
Baptisia australis
Blue false indigo
A long-lived native perennial of central and eastern US woodland borders and prairie meadows with deep blue pea-shaped flowers in late spring, blue-green leguminous foliage, attractive black seed pods for winter interest, and a nitrogen-fixing root system (Fabaceae). Larval host for 6 documented butterfly species per NC State (orange sulphur, clouded sulphur, frosted elfin, eastern tailed-blue, hoary edge, wild indigo duskywing) — among the highest Lep-host-count perennials in the eastern flora.
Perennial
Full sun / Part shade
Moderate water
Zones 3a-9b
Climate: broad
Border
Pollinator
Focal point
Structure
Hibiscus moscheutos
Hardy hibiscus
A bold, moisture-loving native perennial of eastern North America that dies back to a woody base each winter and returns to throw up stout 2-6 ft stems topped with enormous 4-8 inch saucer-shaped flowers — white, pink, red, or burgundy, each with a contrasting central eye — from June into September. NC State Extension describes a herbaceous perennial hardy across USDA zones 4a-9b that thrives in wet to constantly moist soils, tolerates heat, humidity, and even brief flooding, and draws hummingbirds, butterflies, and other pollinators. The tropical-looking dinner-plate blooms make it a dramatic focal point for rain gardens, pond edges, and the back of a sunny border.
Perennial
Full sun / Part shade
Consistent moisture
Zones 4a-9b
Climate: broad
Focal point
Border
Structure
Pollinator
Forsythia × intermedia
Border forsythia
A deciduous shrub grown almost entirely for its explosion of yellow four-lobed flowers that line the bare arching stems in early spring, before the leaves emerge. A garden hybrid of two Asian species (Forsythia suspensa × F. viridissima) — not native to North America. Missouri Botanical Garden describes it as a "one-season wonder" that fades into the background after bloom, so it earns its place as a late-winter color signal rather than a four-season anchor.
Shrub
Full sun / Part shade
Moderate water
Zones 5a-8b
Climate: moderate
Focal point
Structure
Border

Sources & citations

Cite this page
For lesson plans, articles, or research that uses this page. To cite a single upstream fact instead, use its specific source listed below.
Plotwright. (2026, May 17). Adam's needle (Yucca filamentosa). Retrieved 2026, June 24, from https://plotwright.com/plants/yucca-filamentosa
Sources for every fact
Every fact on this page traces to a source. 18 fields cited - 18 source-backed.
Missouri Botanical Garden PlantFinder
Botanical research database
Backs 17 fields
Identity
Summary
Plant type
Light
Moisture
Hardiness
Heat zone
Size
Spacing
Habit
Design roles
Seasonal interest
Growth stages
Lifecycle
Regional guidance
Success tips
Designer notes
Wikimedia Commons
Photo · CC BY-SA 3.0
Backs 1 field
Image
Lady Bird Johnson Wildflower Center Native Plant Database
Botanical research database