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How to Grow Ekeberjia

Ekeberjia

Erythryna lysistemon

tree

Erythryna lysistemon, commonly called the coral tree or Transvaal karee, is a deciduous to semi-deciduous tree native to southern Africa. It produces spectacular bright red or orange-red flower spikes before its leaves emerge in spring, attracting birds and insects. The tree grows 20-30 feet tall with a wide, spreading crown and thorny branches.

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Example Ekeberjia timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Ekeberjia

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Ekeberjia

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Ekeberjia dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun, 6-8 hours daily; tolerates partial shade
💧
Water: Moderate water during growing season; reduce watering during dormancy. Drought-tolerant once established. Allow soil to dry between waterings.
📏
Spacing: 240 inches
📅
Days to maturity: 3-4 years to first flowering
🌱
Planting depth: 1 inch for seeds; plant transplants at same depth as container

Soil

Type: Well-draining, sandy to loamy soil
pH: 6.0-7.5
Amendments:
Compost Sand for drainage Organic matter

Growing Zones

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Thrives in zones 9b-11; frost-tender in cooler regions

9b 10a 10b 11a 11b

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Growth Stages

1

Seedling

2-3 months

Small plants with tender leaves emerging from soil; slow initial growth

Keep soil lightly moist; protect from frost; provide bright light; avoid overwatering

2

Young vegetative

1-2 years

Developing woody stems with thorns; compound leaves emerging; gradual height increase

Establish deep watering schedule; stake if needed for support; minimal pruning

3

Pre-flowering

1-2 years

Tree approaching flowering size; fuller canopy development; thorny branches become more prominent

Reduce nitrogen fertilization; ensure full sun exposure; maintain consistent watering

4

Flowering

3-6 weeks

Brilliant red-orange flower spikes emerge before or as leaves unfold in spring; highly attractive to hummingbirds and sunbirds

Minimal intervention; deadheading optional; provide ample water during bloom period

5

Fruiting & dormancy

Several months

Bean-like seed pods develop after flowers fade; tree enters semi-dormant phase with reduced foliage in winter

Reduce watering; collect seed pods if propagation desired; allow natural dormancy

Companion Planting

Plan your garden →

Plant with:

Desert rose Aloe Bougainvillea Mexican sunflower Lantana Acacia

Avoid planting near:

Nitrogen-fixing legumes in very close proximity Dense-rooted trees competing for water

Common Pests

  • Spray with water; use neem oil if severe; increase humidity around plant

  • Remove with cotton swab dipped in alcohol; spray with insecticidal soap

  • Prune affected branches; apply horticultural oil in dormant season

  • Prune out infested branches; maintain tree vigor through proper care

Uses

🦋

Hummingbird and bird magnet

Wildlife

The brilliant red flowers are irresistible to hummingbirds, sunbirds, and other nectar-feeding birds, making it a premier wildlife garden plant. The tree provides food and shelter for numerous bird species. [source]

🏠

Ornamental specimen and landscape accent

Household

Serves as a stunning focal point in gardens and landscapes, especially striking when in full spring bloom. The dramatic architecture and seasonal color change add visual interest year-round. [source]

💊

Traditional African medicine

Medicinal

Used in southern African traditional medicine for various purposes including treatment of wounds and certain ailments. Contains alkaloids with potential pharmaceutical interest. [source]

🎨

Seed pods and dried arrangements

Craft

The distinctive bean-like seed pods can be dried and used in floral arrangements and craft projects for their attractive texture and shape. [source]

🍳

Ceremonial and cultural significance

Culinary

In South Africa, the coral tree is culturally significant and historically used in traditional ceremonies. Some parts have been explored for limited culinary applications in traditional contexts. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Seed pods mature in late summer to fall; collect when pods turn brown and dry. Split pods to extract seeds. Seeds can be scarified or soaked overnight before planting to improve germination. Flowers are not typically harvested but are valued for ornamental display.

Fun Facts

  • 🌱 Erythryna lysistemon is the national tree of South Africa, featured on the country's coat of arms and featured in South African currency
  • 🌱 The tree's thorns are believed to have inspired the design of the Zulu shield, which mimics the tree's branching pattern and defensive spikes
  • 🌱 Seeds contain poisonous alkaloids and should never be ingested; the plant is toxic if eaten but serves as a powerful ornamental despite this

Gardening Terms

New to gardening? Learn about terms used in this guide:

Crown Deadhead Full Sun Germination Partial Shade pH
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