Overview
Helianthemum 'Sulphur Moon' is a matforming, bushy, spreading branched shrubs in the genus Helianthemum, part of the Cistaceae family, with evergreen foliage. Helianthemum 'Sulphur Moon' grows best in full sun, and tolerates most soils and any pH. Its UK hardiness is rated H4. Suggested uses include gravel garden, rock garden, wildlife gardens and banks and slopes.
About
Helianthemum 'Sulphur Moon' is a cultivar of evergreen shrubs within the genus Helianthemum, known for their small paired leaves and saucer-shaped flowers that bloom in spring and early summer. This cultivar forms a matting, bushy, and spreading habit, making it suitable for gravel gardens, rock gardens, wildlife gardens, and banks or slopes. It thrives in full sun and well-drained, fertile soils of various types including chalk, clay, loam, and sand, across a range of pH levels. Hardy to UK zone H4, it can be propagated by softwood cuttings in late spring or early summer.
Growing conditions
Best soil and position for Helianthemum
- Sunlight
- Full sun
- Soil type
- Chalk, Clay, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Well-drained
- Aspect
- South-facing, West-facing, East-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H4
Plant details
Helianthemum 'Sulphur Moon' size, habit and characteristics
- Plant type
- Shrubs, Alpine Rockery
- Habit
- Matforming, Bushy, Spreading branched
- Foliage
- Evergreen
- Suggested uses
- Gravel garden, Rock garden, Wildlife gardens, Banks and slopes
Care notes
Pruning and caring for Helianthemum 'Sulphur Moon'
- Propagation
- Softwood cuttings in late spring or early summer
- Pest resistance
- Generally pest-free
- Disease resistance
- May be susceptible to honey fungus
Frequently asked questions
Where is the best place to plant Helianthemum 'Sulphur Moon'?
Helianthemum 'Sulphur Moon' prefers full sun. It suits exposed and sheltered positions.
What soil does Helianthemum 'Sulphur Moon' need?
Helianthemum 'Sulphur Moon' is adaptable and grows happily in most soil types, including chalk, clay, loam and sand. It is happy in soil of any pH. Aim for soil that stays well-drained.
Is Helianthemum 'Sulphur Moon' hardy in the UK?
Helianthemum 'Sulphur Moon' has an RHS hardiness rating of H4, meaning it is hardy through an average UK winter, tolerating -10 to -5°C.
How do I propagate Helianthemum 'Sulphur Moon'?
Softwood cuttings in late spring or early summer.
More in the Helianthemum genus
- Helianthemum 'Wisley Pink'Rock Rose
- Helianthemum canariense
- Helianthemum hybrids
- Helianthemum lippii
- Helianthemum nummulariumcommon rockrose
- Helianthemum oelandicum subsp. alpestrealpine sun rose
- Helianthemum 'Ben Dearg'
- Helianthemum 'Bishopsthorpe'