Mediterranean Sea Lavender (Limoniastrum monopetalum)

Mediterranean Sea Lavender

Limoniastrum monopetalum

It bears delicate purple spikes against silvery foliage, a quiet coastal beauty. Evergreen drought-tolerant shrub; common name: Mediterranean sea lavender.

Full sun
1–2/week
Moderate
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Plant Needs

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Sunlight Requires full direct sunlight; tolerates coastal salt spray and intense summer heat
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Watering Drought-tolerant once established; water deeply only when top 5–10 cm of soil is completely dry
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Temperature Tolerates mild frost down to 5°C; thrives in warm, dry Mediterranean climates
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Characteristics

  • Leaf: Linear, succulent gray-green leaves with waxy coating to reduce water loss
  • Flower: Dense terminal spikes of small pale purple, five-lobed flowers
  • Stem: Woody, branching base with slender, upright flowering stems
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Care Guide

Watering

Water deeply every 7–10 days during dry spells; avoid waterlogging

Fertilization

Apply diluted balanced feed once monthly. Avoid over-fertilization to prevent excessive foliage growth at the expense of flowering

Banana peel tea:Steep 2–3 chopped banana peels in 1L water for 3 days; strain and dilute 1:2 before drenching soil
Pruning
  • Trim spent flower spikes after blooming to encourage tidiness and potential rebloom
  • Thin overcrowded branches in early spring to improve airflow and light penetration
  • Cut back leggy stems by one-third in late winter to promote compact growth
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: No documented toxicity to cats per ASPCA records

Humans: No documented toxicity to humans

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Garden Uses & Culture

Culture: N/A

Usage: Coastal garden ornamental; erosion control on sandy slopes