Yucca filamentosa 'Excalibur'

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Common Name: Adam's Needle

This Yucca forms a uniform, spiky, rounded clump of sword-like, blue-green to glaucous grey-green leaves lined with an extraordinary number of curly white filaments. Its habit is much more uniform and is overall smaller than the straight species.

Impressively stout flower scapes carry white, bell-shaped flowers in early to midsummer.

Succulent in nature, Yucca do well in low water and rock gardens, tolerating dry soils that many other perennials do not. Tall flower scapes appear at maturity like elaborate candelabras. Grow these plants in full sun so they might reach their full potential.

Height:

1.5-2.0 Feet

Spread:

3.0-3.5 Feet

Scape Height:

4.0-5.0 Feet

Hardiness Zones:

(4),5,6,7,8,9,10

Flower Color:

White Shades

Foliage Color:

Green shades

Sunlight:

Full Sun (> 6 hrs. Direct Sun) Part Shade (4-6 hrs. Direct Sun)

Water Requirements:

Low Water Needs Average Water Needs

Soil Quality:

Poor Soil Quality Average Soil Quality Fertile Soil Quality

Soil Chemistry:

Acidic Soil (pH < 7.0) Neutral Soil (pH = 7.0) Alkaline Soil (pH > 7.0)

Bloomtime:

Early Summer Midsummer

Critter Resistant:

Deer Resistant Rabbit Resistant

Seasonal Interest:

Evergreen

Growth Rate:

Medium

Garden Style:

Patio Container Eclectic Formal Modern Rock Garden

Other Features:

Border Plant Container Drought Tolerant Easy To Grow Salt Tolerant Specimen Focal Point

Origin:

Native to North America

Yuccas thrive in any type of well-drained soil including those that are very dry. Though they will grow in partial shade, they reach their full potential only if they receive sun all day long. Many yuccas do not bloom until they are mature. Once they start, though, you will see that they were worth the wait. The flower stalks retain some ornamental value after the blooms have faded. Mature plants sometimes develop plantlets near their base. These can be dug and transplanted elsewhere if desired.

Characteristics