Bring bold color and long-lasting beauty to your garden with Calandrinia Grandiflora Seeds, commonly known as Rock Purslane. This stunning, drought-tolerant flowering plant is cherished for its brilliant magenta-to-purple blooms and succulent-like foliage. Perfect for rock gardens, borders, containers, dry landscapes, and water-wise gardening, Rock Purslane offers months of non-stop color with minimal care.

These high-quality, non-GMO seeds are perfect for gardeners seeking low-maintenance plants that thrive in sunlight and heat while providing vibrant visual interest throughout the growing season.

Key Features

• Produces vibrant magenta or purple blooms

• Drought-tolerant once established

• Ideal for rock gardens, borders, containers, and xeriscapes

• Long-lasting flowering season

• High-quality, non-GMO seeds

• Hardy and heat-tolerant

• Easy to grow and suitable for beginners

Specifications

Botanical Name: Calandrinia grandiflora
Common Name (US): Rock Purslane
Plant Type: Tender Perennial (often grown as annual)
Seed Type: High-Quality, Non-GMO
Flower Color: Magenta, purple-pink
Bloom Season: Late Spring, Summer, Early Fall
USDA Hardiness Zones: 8–11
Sun Exposure: Full Sun
Soil Requirements: Well-drained, sandy or rocky soil preferred
Plant Height: 12–24 inches
Spacing: 10–14 inches apart
Water Requirements: Low to moderate; thrives in dry conditions
Germination Time: 14–21 days
Temperature for Germination: 65–75°F
Growth Habit: Compact, mounded; succulent-like foliage
Uses: Rock gardens, borders, containers, dry landscaping
Special Notes: Excellent for water-wise and low-irrigation landscapes.

Planting Guide

1. Sowing Indoors or Outdoors

• Start indoors 6–8 weeks before the last frost, or sow directly outdoors in warm climates.

2. Sowing Depth

• Sow seeds on the surface of the soil; do not bury deeply.

• Lightly press seeds into the soil.

3. Light & Temperature

• Calandrinia seeds require light to germinate.

• Provide bright sunlight or use grow lights.

• Maintain 65–75°F for best germination.

4. Transplanting

• Harden off seedlings before planting outdoors.

• Choose sunny, well-drained locations.

5. Watering & Care

• Water lightly; allow soil to dry between waterings.

• Avoid overwatering, as Rock Purslane prefers dry conditions.

• Deadhead spent blooms to encourage continuous flowering.

6. Flowering Period

• Expect abundant blooms from late spring into early fall, especially in sunny, dry locations.

Benefits

• Excellent choice for drought-resistant or low-water gardens

• Long blooming season with intense color

• Thrives in heat and full sun

• Low maintenance and easy for beginner gardeners

• Ideal for ornamental landscaping and container gardening