Urginea maritima, commonly known as Sea Squill, is a striking Mediterranean bulb prized for its drought tolerance, towering white flower spikes, and ability to thrive in poor, rocky soils. Ideal for Mediterranean gardens, xeriscapes, and low-maintenance landscapes, it also performs exceptionally well in much of Australia’s dry, sunny climates.

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Quick Facts

• Botanical name: Urginea maritima
• Common name: Sea Squill
• Plant type: Bulbous perennial
• Height: Up to 2 m (6 ft)
• Sun exposure: Full sun
• Soil: Sandy, gritty, or rocky; excellent drainage required
• Water needs: Very low; drought tolerant
• Hardiness: To approx. –7°C (20°F)
• Toxicity: Poisonous to pets and humans

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Why Grow Sea Squill?

Sea Squill is loved by gardeners for its architectural presence, resilience, and ability to thrive on neglect. Its dramatic white flower spikes emerge in early autumn, often before the leaves appear, creating an impressive vertical accent in dry gardens.

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Features & Seasonal Interest

Tall Autumn Flower Spikes

• Produces narrow, white flower spikes up to 2 metres tall.
• Blooms in early autumn, adding height and drama when many other plants are fading.

Large Bulbs with Distinct Habit

• Bulbs should be planted with the neck exposed above the soil, mimicking their natural Mediterranean environment.
• Natural habitat ranges from coastal cliffs to inland rocky slopes.

Foliage

• Strap-like, fleshy leaves appear after flowering.
• Dies back naturally in early summer during dormancy.

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How to Grow Urginea maritima

1. Planting Location

Choose a site with:

• Full sun (critical for flowering)
• Excellent drainage (sandy, gritty, rocky soils)
• A slope or mound if soil is heavy, to prevent waterlogging

2. Soil Requirements

• Prefers poor, low-fertility soils.
• Avoid rich or moisture-retentive soil.
• Do not add fertilizer; it’s unnecessary and may harm the plant.

3. Watering

• Water sparingly during the active growing season.
• Allow soil to dry almost completely between waterings.
• During summer dormancy, do not water.

4. Climate & Hardiness

• Thrives in Mediterranean and warm, dry climates.
• Hardy to about –7°C (20°F).
• In colder zones, protect from extended freezing or grow in containers that can be moved indoors.

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Propagation

Offsets (Best Method)

• Divide bulbs during dormancy (late summer).
• Replant offsets in gritty, well-drained soil.
• Grow on in pots before planting in the landscape.

From Seed

• Possible but slow; seedlings may take several years to flower.

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Maintenance & Care

• Remove dead or yellowing leaves after they dry naturally.
• Cut back spent flower spikes after blooming to tidy the plant and prevent self-seeding.
• No fertilizer needed.
• Minimal care beyond ensuring dry summers and good drainage.

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Toxicity Warning

All parts of Urginea maritima are toxic to humans and pets.
Avoid planting where children or animals may ingest plant material.

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Ideal Uses in the Garden

• Xeriscapes & drought-tolerant gardens
• Mediterranean landscapes
• Rock gardens & gravel gardens
• Architectural plantings
• Large containers (excellent for cold-climate gardeners)

Its tall flower spikes create dramatic focal points, while the bulbs’ hardiness makes it an exceptional choice for low-maintenance gardening.

Urginea maritima are available for sale form the following nurseries

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