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Spanish dagger
Also known as: Palm lily, Adam's needle
Spanish dagger (Yucca gloriosa) is a flowering evergreen shrub that originated in the United States southeastern region. It naturally grows along sand dunes, but has become very popularly cultivated as a garden plant used for landscaping. Other names for spanish dagger are Roman candle, Lord's candlestick, and Sea Islands yucca.
Scientific classification
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Toxic to Pets
Toxicity
Perennial
Lifespan
Shrub
Plant Type
Summer, Fall
Bloom Time
Fall, Winter
Harvest Time
50 cm to 1.8 m
Plant Height
1.2 m
Spread
Green, Blue, Yellow, Variegated
Leaf Color
5 cm to 7 cm
Flower Size
Brown, Red, Green, Copper, Burgundy
Fruit Color
White, Cream
Flower Color
Green, Blue, Brown, Cream
Stem Color
Winter dormancy
Dormancy
Evergreen
Leaf type
10 - 38 ℃
Ideal Temperature
Spring, Summer, Fall
Growth Season
Slow
Growth Rate

Images of Spanish dagger

Distribution of Spanish dagger

Distribution Map
Spanish dagger naturally occurs in the sand dunes and coastal borders of Southeast America. Its distribution of this frost-tender plant isn't widespread, only being cultivated in various European countries, some South American countries, and Great Britain.
Native
Cultivated
Invasive
Introduced
No species reported
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Habitat
Sand dunes, Seacoast
Hemisphere Trend Curve

Culture

Garden Use
The two-colored dagger-like leaves of spanish dagger (Yucca gloriosa) are an attractive and common feature of ornamental gardens, and its summer flowers and fruit attract birds. Spanish dagger makes a great addition to the beds and borders of Mediterranean, coastal, city, and cottage gardens. Grow this yucca with plants that bloom at similar times like sage, yarrow, and tiger lilies.
Symbolism
Protection, Purification, loyalty, new opportunities
Interesting Facts
This garden-worthy succulent plant demands special caution - the spines of Yucca gloriosa contain saponins, a soap-like compound. Although saponins have been used as a natural soap by Native Americans, these compounds can cause skin irritation and are considered toxic. Reportedly, some tribes used saponins as arrow-tip poison.
Name Story
Spanish dagger: As an ornamental plant, its white flowers are extremely beautiful and attractive. Despite that, the leaves are not inferior to flowers in any measure. The long and narrow leaves seem to be very hard, like Spanish bayonets and can easily injure anyone in contact.
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Cultivars

There are several recognized cultivars of Spanish dagger, including the following common varieties :

Quickly Identify Spanish dagger

1
Sword-shaped leaves with sharp tips and symmetrical arrangement.
2
Creamy white, bell-shaped flowers in large panicles with red or purple tints.
3
6-lobed, elongate berry with a tough, leathery exterior, distinctive among berries.
4
Thick, succulent stem transitioning from green to woody texture, exceeding 1 inch (2.5 cm) in diameter.
5
Young leaves are blue-green, linear, and feature inconspicuous teeth, maturing to light green.
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Care Guide for Spanish dagger

Every 3 weeks
Water
Full sun
Sunlight
10 - 38 ℃
Ideal Temperature
Garden Soil
Soil Type
Water: Adapted to arid climates, spanish dagger thrives with minimal moisture and high drought tolerance. It requires deep watering every three weeks and benefits from well-draining soil to prevent root rot. Water needs slightly increase during the active growth season to support its spiky foliage.
Fertilize: Fertilizing spanish dagger is crucial for growth and flowering. Use balanced or high nitrogen fertilizers quarterly, or bimonthly for young plants. Adjust amounts based on size; avoid over-fertilization. Opt for slow-release granules or diluted liquid formulas, and reduce fertilization in winter for optimal health and blooms.
Pruning: Spanish dagger features sword-like leaves and vibrant flower spikes. Periodic pruning in early spring improves air circulation and aesthetics by removing dead leaves and crowded areas. Avoid over-pruning to prevent stress and damage, promoting healthier growth and reducing pest problems.
Propagation: Spanish dagger can be propagated easily using cuttings from healthy stems with a growth node. Treat cut ends with rooting hormone and plant in well-draining soil. Maintain stable moisture levels without overwatering. Once established, spanish dagger requires minimal maintenance, making it suitable for all skill levels.
Repotting: Spanish dagger requires repotting every 2-3 years in spring to support its robust roots. Select a container one size larger and ensure proper drainage. After repotting, place it in bright, indirect light and water sparingly to promote recovery and healthy growth.
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