Photo of Petromarula pinnata flower by Annie's Annuals & Perennials

Photo by Annie's Annuals & Perennials

Used with permission, all rights reserved

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Petromarula pinnata

Also Known As

  • Cretan Rock Lettuce

Plant type

perennial

size

  • H: 2'
  • W: 3'

planting zones

  • 8a-10b

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Petromarula pinnata plant details

Petromarula pinnata is a broadleaf deciduous perennial with green foliage. In summer blue and lavender flowers emerge. Grows well with sun and regular - low water. Drought tolerant once established. Does well in rich and well-drained soil.

CHARACTERISTICS OF Petromarula pinnata

Plant type: perennial
Plant family: campanulaceae
Foliage: deciduous green
Mature size: 3 FT wide, 2 FT tall
Flowers: blue and lavender blooms in summer
Uses: container plant, long-blooming, monocarpic, rock garden, self-sowing

GROWING CONDITIONS for Petromarula pinnata

USDA Zones: 8a - 10b
Sun exposure: sun
Watering frequency: regular - low
Soil needs: rich and well-drained

Nursery contributed plant descriptions

The Superstar award goes to this easy, little known drought tolerant Mediterranean rarity. From humble beginnings as an attractive rich green clump of shiny celery-like leaves – 18” across – it transforms itself, usually in its second year into the marvelous plant you see here. Many strong upright spikes densely studded with fascinatingly reflexed lavender blue stars, reaching to 2’ tall, spread to 3’ across. Blooms last up to 3 months in Summer with almost no flowers fading. Now it may or may not die after it’s finished but reliably self-sows – so not to worry. Superb choice for well-drained rock gardens & containers. We give ours some Summer water, compost & good drainage.

Gardening facts about Petromarula pinnata plant

How to Grow Petromarula pinnata

  • Sun Exposure

    • sun
  • Water Needs

    • regular - drought tolerant
  • Soil Needs

    • well-drained
    • rich

Features

  • Flower Color

    • blue
    • lavender
  • Foliage Season

    • deciduous
  • Flower Season

    • summer
  • Foliage Color

    • green
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