Pieris 'Forest Flame'

Sun

Partial shade, preferably morning sun and afternoon shade. Tolerates more sun in cool, moist climates; protect from drying winds and strong afternoon sun.

Water

Keep evenly moist but not waterlogged. Water deeply during dry spells, especially while establishing and when grown in a container.

Soil

Acidic, humus-rich soil that drains freely but retains moisture, ideally pH 4.5-6.0. Unsuitable for chalky or alkaline ground; use ericaceous potting mix in containers.

Height

8-12 ft (2.4-3.7 m)

Spread

5-8 ft (1.5-2.4 m)

Flowers

White, bell-shaped flowers in hanging clusters in early to mid-spring; flower buds remain visible through winter.

Foliage

Leathery, narrow oval evergreen leaves. New growth opens scarlet-red, fades through pink and cream, then matures to glossy dark green.

Growth

Slow to moderate; may take 10-20 years or longer to approach full size.

Care needed

Medium

• Pollinators
• Deer resistant
• Wildlife
• Low allergen

Northern hemisphere months. In Australia, shift them by six.

Difficulty

Moderate

Toughness

Fairly tough

Pick your zone, country, light and whether you have pets.

1. Planting day

   1.6 ft (0.5 m)

2. After 1 year

   2.9 ft (0.89 m)

3. After 2 years

   4 ft (1.3 m)

4. After 3 years

   6 ft (1.7 m)

5. After 5 years

   8 ft (2.5 m)

About 7 years to full size.

From a typical nursery size, at an average rate for this kind of plant. A rule of thumb, not a forecast.

Cats and dogs

Toxic

Growth rate

Slow

• Water deeply through dry periods; do not allow the shallow root zone to dry out completely.
• Apply 2-3 in (5-8 cm) of leaf mould or composted bark each spring, keeping mulch clear of the stems.
• If growth is weak, feed lightly in spring with a fertilizer formulated for acid-loving shrubs.
• Use collected rainwater where tap water is hard, especially for container plants.
• Protect young spring growth from late frost with horticultural fleece when practical.

Pruning. Prune lightly immediately after flowering to remove dead or damaged shoots and shorten awkward branches. Avoid routine hard pruning or late-season trimming, which can remove the following spring's flower buds.

Early spring

Check soil moisture, refresh the mulch and feed lightly if needed.

Spring

Protect emerging red shoots when late frost is forecast.

Late spring

After flowering, remove spent flower clusters if accessible and carry out any light shaping.

Summer

Water during dry spells and inspect leaf undersides for lace bugs.

Late summer

Take semi-ripe cuttings from healthy, non-flowering shoots.

Autumn

Plant in suitable acidic soil where winters are mild; in colder regions, wait until spring.

Winter

Check container drainage and shelter pots from drying winds and severe freezes.

• Use as an evergreen focal point in a sheltered, partly shaded border.
• Combine with rhododendrons and camellias for successive spring flowers and contrasting foliage.
• Plant along a woodland edge above ferns and shade-tolerant groundcovers.
• Grow in a large, well-drained container of ericaceous mix where garden soil is alkaline.

Garden styles it suits: Woodland, Japanese, English country, Modern courtyard, Pacific Northwest woodland and Winter interest.

Plant it with: Rhododendrons, Azaleas, Camellias, Japanese maples, Japanese painted ferns and Hostas.

Wildlife: Spring flowers provide nectar and pollen for bees, including bumblebees. Evergreen branches offer some shelter for small garden wildlife.

• Yellow leaves with green veins usually indicate iron deficiency caused by alkaline conditions: check soil pH and move to an acidic bed or ericaceous container mix if necessary.
• Lace bugs cause pale stippling on leaves and dark specks beneath: inspect leaf undersides, avoid hot, dry sites and treat young insects with insecticidal soap where locally approved.
• Phytophthora root rot can cause wilting and dieback in wet soil: improve drainage, avoid overwatering and remove badly affected plants.
• Late frost and cold winds can blacken new shoots: provide shelter and remove damaged tips once the risk of further frost has passed.

Toxic to people, cats, dogs and horses if eaten. All parts contain grayanotoxins; ingestion can cause vomiting, weakness, dangerously slow heart rate and potentially fatal poisoning. Seek urgent medical or veterinary advice after ingestion.

• Japanese pieris (Pieris japonica)

  Has similar evergreen leaves and hanging white bells. New-growth colour varies widely among cultivars, so a reliable label is needed to distinguish 'Forest Flame' from similar red-flushing selections.

• Photinia 'Red Robin' (Photinia × fraseri 'Red Robin')

  Also produces bright red new leaves, but its leaves are broader and more conspicuously toothed, and its flowers form flat clusters rather than hanging chains of bells.

• Drooping leucothoe (Leucothoe fontanesiana)

  Has similar small white bells but a lower, arching habit, more pointed leaves and flower clusters mainly along the stems rather than conspicuous terminal panicles.

Pieris refers to the Pierides, a name for the Muses in Greek mythology, while 'Forest Flame' describes the fiery colour of the young foliage.

Propagation. Take semi-ripe cuttings in late summer and root in a free-draining, acidic propagation mix with humidity and gentle bottom heat. Rooting can be slow; seedlings will not reliably retain the cultivar's characteristics.

Accepted botanical name

Pieris

Sources: GBIF (CC BY 4.0). The care and design notes are LandscapeGPT's own.