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Product Description
Add vibrant, sun-loving blooms to your garden with Helianthemum flower seeds, known for their colorful flowers and low-maintenance growth. Ideal for garden beds, borders, rock gardens, and container plantings, Helianthemum provides a long-lasting, bright display that enhances any home garden.
Plant Type: Hardy perennial flowering plant
Light Requirement: Full sun
Bloom Season: Late spring through summer
Height: Grows 6–12 inches tall
Uses: Garden beds, borders, rock gardens, and containers
Quality: Premium, open-pollinated seeds
Soil Preparation: Use well-drained, sandy or loamy soil enriched with organic matter.
Sowing Time: Sow seeds indoors 6–8 weeks before the last frost or outdoors after frost danger has passed.
Sowing Depth: Press seeds lightly onto the soil surface; do not cover deeply.
Spacing: Space 6–12 inches apart for healthy growth.
Watering: Keep soil lightly moist during germination; moderate watering once plants are established.
Germination Period: Seeds typically sprout in 10–21 days under warm conditions.
Care Tips: Remove spent flowers to encourage continuous blooming; low-maintenance once established.

Life Cycle
Perennial flowering plant
Planting Season
Spring sowing
Growth Habit
Low spreading shrub
Flavor Profile
Not applicable
Plant Characteristics
Bright papery blooms
Use
Rock gardens & borders
Growing Conditions
Dry well-drained soils
Harvest Advantages
Long flowering span
Plant Resistance
Drought tolerant
Helianthemum spp.
Seed Names
Rock Rose Seeds
Seed Type
Heirloom open-pollinated
Helianthemum, commonly known as Rock Rose, is a sun-loving perennial prized for its cheerful, brightly colored flowers and low-growing habit. Blooming profusely in shades of yellow, pink, orange, and white, this hardy plant thrives in dry, well-drained soils and rocky conditions. Ideal for borders, slopes, and rock gardens, helianthemum brings vivid color and low-maintenance beauty to home landscapes.
Light Requirement
Full sun
Planting Depth
Surface sow
Sowing Method
Trays / direct sow
Plant Spacing
8–12 inches
Days to Maturity
120–180 days
Soil Preparation
Cold stratification
Hardiness Zones
USDA 5–9
Water Needs
Low–moderate
Planting Season
Spring / early fall
Seed Count
Recommended Coverage
100
Up to 25 sq ft
500
Up to 125 sq ft
1000
Up to 250 sq ft