How to Grow Winter Heath 'December Red'
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Winter Heath 'December Red'
Erica carnea 'December Red'
shrubErica carnea 'December Red' is a compact, evergreen shrub known for its deep red-pink tubular flowers that bloom abundantly during winter months. This cultivar is one of the earliest flowering heaths, providing vibrant color when most gardens are dormant. It reaches 12-15 inches tall and spreads 18-24 inches, making it ideal for rock gardens, borders, and containers.
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Example Winter Heath 'December Red' timeline · Pittsburgh, PA (Zone 6b)
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Plant Winter Heath 'December Red'
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Winter Heath 'December Red'
Late summer into fallBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Winter Heath 'December Red' dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 5b-8b; best performance in cooler climates with mild winters
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Get my Winter Heath 'December Red' timeline →Growth Stages
Establishment
4-8 weeks after plantingYoung transplant with limited foliage; actively developing root system
Water regularly to establish roots. Mulch around base with 1-2 inches of ericaceous mulch (pine bark). Avoid transplanting shock by planting in cool weather.
Vegetative Growth
Spring to early autumnPlant develops dense, needle-like foliage; forms compact mound shape
Pinch back new growth in spring to encourage bushiness if desired. Begin monthly feeding with ericaceous fertilizer. Maintain consistent moisture.
Budding
September to NovemberFlower buds form at branch tips, visible as small red protrusions emerging from foliage
Continue regular watering. Do not prune during this stage. Reduce nitrogen fertilizer; apply phosphorus-rich formula to support flowering.
Flowering
December to February (8-12 weeks)Abundant tubular flowers in deep red-pink open progressively along stems, creating striking winter display
Peak bloom December-February. Deadhead spent flowers to extend bloom if desired, though not essential. Continue watering during dry winter periods.
Post-Bloom Dormancy
March to AprilFlowers fade; plant enters semi-dormant state while maintaining evergreen foliage
Light pruning after bloom to maintain shape; cut back no more than 1/3 of growth. Resume balanced fertilizer in spring. Reduce watering frequency in late winter.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Remove infested stems; spray with insecticidal soap in early spring before larvae hatch; encourage beneficial insects
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Increase humidity through regular misting; spray with water to dislodge; use miticide if severe; avoid excessive heat and dryness
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Apply nematodes to soil in autumn; handpick adults at dusk; use sticky traps; remove plant debris where they hide
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Ensure excellent drainage; avoid overwatering; use ericaceous soil; remove affected plants; apply copper fungicide preventively in susceptible areas
Uses
Winter Floral Arrangements
HouseholdCut flowering stems provide exceptional deep red-pink color for fresh winter bouquets and holiday decorations when most other flowers are unavailable. The long stems and clustered flowers create natural focal points in arrangements. [source]
Pollinator Food Source
WildlifeEarly winter flowers provide critical nectar and pollen for winter-active insects, particularly early-flying bees and overwintering butterflies during the coldest months. The dense evergreen foliage offers shelter for beneficial insects. [source]
Edible Flowers
CulinaryErica carnea flowers are edible and can be used as delicate garnish for winter salads and desserts, offering mild, slightly honey-like flavor and visual interest. Ensure pesticide-free plants before using. [source]
Dried Flower Preservation
CraftFlowers can be air-dried or pressed for winter crafts, dried arrangements, and botanical pressing projects. They retain color well and create lasting winter decorative displays. [source]
Traditional Herbal Use
MedicinalErica species have been used in traditional herbalism for diuretic and respiratory support, though clinical evidence is limited. Modern use is primarily ornamental rather than medicinal. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
This is an ornamental shrub not typically harvested. Stems with flowers can be cut for fresh winter arrangements; cut in morning when flowers are fully opened. Vase life is approximately 2-3 weeks with water change every 2-3 days.
Fun Facts
- 🌱 Erica carnea 'December Red' is one of the few shrubs that flowers reliably throughout December and January in temperate climates, earning it the common name 'Winter Heath' and making it invaluable for year-round garden interest.
- 🌱 The tubular flowers are specifically adapted for bee pollination, and Erica carnea blooms are particularly important for winter-active bumblebees and solitary bees that emerge during mild winter days.
- 🌱 This cultivar is extremely cold-hardy and can withstand temperatures down to -20°F (-29°C) while actively flowering, making it one of the hardiest ornamental ericaceous plants.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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