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PlantSnap
Plant Care
White rock rose
(Helianthemum apenninum)
Also Known As
White rock rose, Apennine rockrose, Italian rockrose
About This Plant
Helianthemum apenninum is a low-growing, evergreen shrub with small, dark green leaves and showy yellow flowers that bloom in the spring and summer. It is native to the Apennine Mountains in Italy.
Plant Care Instructions
Outdoor Size Range
12-24 inches (30-60 cm)
Light Requirements
Apennine sunrose prefers full sun, but can tolerate partial shade.
Humidity Needs
Apennine sunrose prefers low humidity, but can tolerate moderate humidity levels.
Fertilizing Schedule
Fertilize with a balanced, slow-release fertilizer in the spring.
Pruning Guidelines
Prune lightly after flowering to maintain shape and promote bushiness.
Common Pests and Diseases
Apennine sunrose is relatively pest and disease-free, but may be susceptible to root rot in poorly-drained soils.
Indoor Size Range
6-12 inches (15-30 cm)
Watering Schedule
Water regularly, but allow the soil to dry out slightly between waterings.
Temperature Range
Apennine sunrose prefers warm temperatures between 60-80°F (15-27°C), but can tolerate temperatures as low as 20°F (-6°C).
Growing Season
Spring and summer are the growing seasons for Apennine sunrose.
Growing Difficulty Level
Apennine sunrose is relatively easy to grow and care for.
USDA Hardiness Zones
Apennine sunrose is hardy in USDA zones 7-10.
Did You Know?
The name Helianthemum comes from the Greek words 'helios' meaning sun and 'anthemon' meaning flower, referring to the plant's love of sunny locations.
