Redvein enkianthus Enkianthus campanulatus
Redvein enkianthus (Enkianthus campanulatus) is a deciduous perennial shrub in the Ericaceae family, native to Japan. It grows 2–4 m (6.6–13 ft) tall and 1.5–3 m (4.9–10 ft) wide, wants part sun to part shade and moderate water, and is hardy to about -25 °C (-13 °F). Space plants about 2 m (6.6 ft) apart.
Plan Redvein enkianthus in your garden →
Free. Draw your beds, then watch it grow through the year in 2D and 3D.
Redvein enkianthus at a glance
| Type | Perennial shrub, deciduous |
|---|---|
| Family | Ericaceae |
| Mature height | 2–4 m (6.6–13 ft) |
| Mature spread | 1.5–3 m (4.9–10 ft) |
| Spacing | 2 m (6.6 ft) centre to centre |
| Sun | Part sun to part shade, at least 4 h of direct sun a day |
| Water | Moderate; drought tolerance low, waterlogging tolerance none |
| Soil pH | 4.5–6 |
| Cold hardiness | About -25 °C (-13 °F) once established (roughly USDA zone 5) |
| Heat stress | Likely above about 30 °C (86 °F) |
| Flowering | from about May for 3–4 weeks (northern hemisphere; later in cold climates, earlier in warm ones) |
| Wind tolerance | Low |
| Pollinator value | High |
| Edible | Not grown as food |
| Native to | Japan |
| Common in gardens of | 🇯🇵 Japan, 🇬🇧 United Kingdom, 🇺🇸 United States, 🇮🇪 Ireland |
Is Redvein enkianthus toxic?
- People: not well documented
- Cats: not well documented
- Dogs: not well documented
Heath family; toxicity not well documented. Treat with caution.
If a child or pet may have eaten part of a plant, call a poison centre or vet straight away.
Companion planting: what to grow with Redvein enkianthus
No well-documented helpful pairing. Group it with plants that like part sun to part shade and moderate water.
Keep apart or take care
- caution With Mountain laurel: Mountain laurel and rhododendrons are hosts of Phytophthora ramorum (sudden oak death), which spreads from infected foliage between neighbouring plants. Evidence B
- caution With English lavender: Acid-loving plants need pH 4.5–5.5, lavender prefers neutral to alkaline soil; one bed cannot suit both. Evidence B
Questions about Redvein enkianthus
- How far apart should I plant Redvein enkianthus?
- About 2 m (6.6 ft) apart, centre to centre. A mature plant spreads 1.5–3 m (4.9–10 ft).
- Does Redvein enkianthus need full sun?
- Part sun to part shade: at least 4 hours of direct sun a day.
- How much water does Redvein enkianthus need?
- Moderate water. Drought tolerance is low and waterlogging tolerance none.
- How cold-hardy is Redvein enkianthus?
- It tolerates about -25 °C (-13 °F) once established, roughly USDA zone 5.
- When does Redvein enkianthus flower?
- From about May for 3–4 weeks (northern hemisphere; later in cold climates, earlier in warm ones).
- Is Redvein enkianthus poisonous to cats and dogs?
- For cats it is not well documented; for dogs not well documented; for people not well documented. Heath family; toxicity not well documented. Treat with caution.
- What grows well with Redvein enkianthus?
- There is no well-documented companion pairing for Redvein enkianthus. Group it with plants that like the same sun (part sun to part shade) and water (moderate).
Sources and evidence
Evidence grade B (B: extension service or peer-reviewed).
- RHS Plant Finder, Royal Horticultural Society
- Missouri Botanical Garden Plant Finder, Missouri Botanical Garden
Notes and assumptions
- Cream bells veined red hang in clusters in spring; fiery red autumn colour. Acid soil like rhododendrons.
Reference values for planning, not horticultural, veterinary or medical advice. Varieties, soils and local climates differ: check with a local nursery or extension service.
Related plants
- Blueberry Vaccinium corymbosum
- Rhododendron Rhododendron
- American cranberry Vaccinium macrocarpon
- Lingonberry Vaccinium vitis-idaea
- Bilberry Vaccinium myrtillus
- Satsuki azalea Rhododendron indicum
- Japanese andromeda (pieris) Pieris japonica
- Heather (ling) Calluna vulgaris