Calandrinia grandiflora – Stunning Rock Purslane for Your Garden

Calandrinia grandiflora, commonly known as Rock Purslane, is a striking, drought-tolerant perennial that produces vibrant magenta to purple flowers atop succulent-like foliage. Native to South America, this low-maintenance plant thrives in warm, dry conditions, making it ideal for rock gardens, xeriscaping, borders, and containers. With its long blooming season and ability to attract pollinators, Rock Purslane adds a bold splash of color and texture to any landscape.

Key Features

• Scientific Name: Calandrinia grandiflora
• Common Name: Rock Purslane
• Plant Type: Perennial (can be grown as an annual in colder climates)
• Flower Color: Bright magenta to purple
• Mature Height: 12 to 24 inches
• Spread: 18 to 30 inches
• Growth Habit: Spreading, mounding
• Light Requirements: Full sun
• Soil Requirements: Well-drained, sandy or rocky soil
• Watering Needs: Low; drought-tolerant once established
• Blooming Season: Late spring through fall
• Uses: Rock gardens, xeriscaping, borders, containers, pollinator-friendly landscapes

Why Grow Calandrinia grandiflora?

• Drought-Tolerant – Perfect for dry climates and water-wise gardens.
• Long Blooming – Produces an abundance of flowers from late spring through fall.
• Pollinator-Friendly – Attracts bees and butterflies to your garden.
• Low Maintenance – Requires minimal care once established.
• Versatile Landscaping – Works well in rock gardens, containers, and borders.

How to Grow Calandrinia grandiflora from Seeds

Seed Sowing Instructions

• Best Time to Sow: Spring, after the last frost, or indoors 6-8 weeks before the last frost.
• Sowing Method:
  • Direct sow outdoors in well-drained soil or start indoors in seed trays.
  • Lightly press seeds onto the soil surface without covering them, as they require light to germinate.
  • Keep the soil slightly moist but not waterlogged.
• Germination Conditions:
  • Temperature: 65-75°F (18-24°C)
  • Germination Time: 2-4 weeks
• Transplanting: Once seedlings have at least two sets of true leaves, transplant them to their final location.

Care and Maintenance

• Watering: Water sparingly; prefers dry conditions once established.
• Fertilization: Apply a light, balanced fertilizer in early spring for optimal growth.
• Pruning: Remove spent blooms to encourage continuous flowering.
• Winter Care: In colder climates, grow as an annual or bring container plants indoors.
• Pest & Disease Resistance: Naturally resistant to most pests and diseases.

Companion Planting Suggestions

• Pairs well with succulents like Agave, Sedum, and Echeveria for a drought-resistant display.
• Complements other drought-tolerant perennials like Lavender, Salvia, and Yarrow.
• Adds vibrant contrast to ornamental grasses and low-growing shrubs.

Bring Bold Color and Resilience to Your Garden

With its dazzling blooms, drought resistance, and effortless care, Calandrinia grandiflora is an excellent choice for gardeners looking to enhance their outdoor space with a hardy and eye-catching plant. Whether in a rock garden, container, or sunny border, Rock Purslane will thrive and impress with its vivid flowers and lush foliage.