How to Grow Sunrose
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Sunrose
Helianthemum nummularium
shrubSunrose is a low-growing, spreading evergreen shrub that produces vibrant, papery flowers in shades of pink, red, orange, yellow, and white. It blooms prolifically throughout spring and early summer, attracting pollinators to sunny garden locations. This drought-tolerant plant is perfect for rock gardens, borders, and containers.
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Example Sunrose timeline · Pittsburgh, PA (Zone 6b)
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Plant Sunrose
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Sunrose
Around Jul 16≈ 90 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Sunrose dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 5-9, with best performance in zones 6-8
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Seedling
2-3 weeksTiny seedlings emerge with small oval cotyledons and develop needle-like true leaves.
Keep soil barely moist, provide bright light, ensure excellent drainage. Thin seedlings to prevent damping off.
Vegetative Growth
4-8 weeksPlant develops a spreading, mat-like form with small needle-like or narrow oval leaves, typically gray-green in color.
Water moderately during establishment, allow frequent dry periods. Begin gradually exposing to full sun. Avoid fertilizing; sunrose prefers poor soil.
Flower Bud Formation
2-3 weeksSmall buds appear at branch tips in late spring; buds develop in clusters at terminal ends.
Continue drought practices once established. Reduce watering significantly. Provide full sun exposure for maximum bud set.
Flowering
6-10 weeksProlific blooms appear in bright colors (pink, red, orange, yellow, white); flowers open in sunlight and close at night or in shade.
Maintain strict drought conditions. Deadhead spent flowers to encourage continuous blooming. No supplemental watering unless extreme drought.
Post-flowering & Dormancy
4-6 monthsFlowers fade and plant enters semi-dormant period in late summer; foliage may take on bronze or purple tones.
Avoid fertilizing and supplemental watering. Light pruning after flowering to maintain shape. Plant remains evergreen in mild climates.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray with water to dislodge; use miticide if severe. Improve air circulation. Avoid excessive nitrogen fertilizer.
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Yellow sticky traps, insecticidal soap, or neem oil spray. Remove heavily infested leaves.
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Improve air circulation, avoid overhead watering, remove affected foliage. Sulfur or fungicide spray if severe.
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Prevent through excellent drainage and drought conditions. Remove and discard severely affected plants.
Uses
Garden Design & Ornamental Use
CraftSunrose is prized for rock gardens, alpine troughs, dry borders, and Mediterranean-style landscapes. Its low-growing, spreading habit makes it ideal for ground cover and edging applications. [source]
Pollinator Support
WildlifeThe prolific papery flowers attract bees, butterflies, and hoverflies throughout the blooming season, providing essential early spring and summer nectar sources. [source]
Container & Landscape Appeal
HouseholdSunrose thrives in shallow pots, mixed containers, and raised beds, adding color and texture with minimal maintenance requirements. [source]
Traditional Herbal Uses
MedicinalIn some European folk traditions, Helianthemum has been used in herbal preparations for respiratory support, though clinical evidence is limited. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Sunrose is ornamental; deadhead faded flowers throughout the blooming season to extend flowering. Cut flowers are short-lived. Collect seeds in late summer if desired for propagation; allow seed pods to dry on plant before harvesting.
Fun Facts
- 🌱 Sunrose flowers are heliotropic—they open in bright sunlight and close at night or on cloudy days, following the sun's movement across the sky.
- 🌱 The common name 'sunrose' comes from the flower's resemblance to small roses combined with its sun-loving nature; it is also called rock rose, though it is unrelated to true roses.
- 🌱 Sunrose has been cultivated since ancient times in Mediterranean regions and was highly valued by Victorian gardeners for alpine and rock gardens.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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