Heuchera 'Neptune'
alum root 'Neptune'
A vigorous, clump-forming, evergreen herbaceous perennial producing grey-silver foliage with dark green veining which may become more red in sunshine. Creamy-white flowers appear on loose, wiry stems above the foliage throughout the summer
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Size
Ultimate height
0.1–0.5 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Grey Silver Green | |||
|---|---|---|---|---|
| Summer | Cream White | Grey Silver Green | ||
| Autumn | Grey Silver Green | |||
| Winter | Grey Silver Green |
Position
- Partial shade
Aspect
East–facing or North–facing or South–facing or West–facing
Exposure
ShelteredDrought resistance
Yes Hardiness
H6Botanical details
- Family
- Saxifragaceae
- Native to GB / Ireland
- No
- Foliage
- Evergreen
- Habit
- Clump forming
- Genus
Heuchera are more or less evergreen, clump-forming perennials with attractive, rounded, shallowly palmately lobed leaves and racemes or panicles of small, tubular flowers, often with colourful calyces
- Name status
Accepted
How to grow
Cultivation
Grow in fertile, humus-rich, moist but well-drained soil, in partial or full shade, and mulch every year; the rootstock tends to push upwards, so every few years, in late summer or early autumn, divide and re-plant with only the crown above ground
Propagation
Propagate by division in late summer or early autumn
Suggested planting locations and garden types
- City and courtyard gardens
- Cottage and informal garden
- Patio and container plants
- Low Maintenance
- Flower borders and beds
Pruning
No pruning required. Remove dead leaves
Pests
May be susceptible to leaf and bud eelworm and vine weevil
Diseases
May be susceptible to heuchera rust
Get involved
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.