How to grow hebe
Overview
Hebe (Veronica speciosa) is a compact, evergreen shrub from New Zealand, valued for its dense foliage and spikes of purple, pink, or white flowers. It provides structure and texture in mixed borders, and thrives in mild, coastal climates with protection from harsh afternoon sun.
Varieties
- Hebe 'Wiri Cloud' — Compact, silver-grey foliage with purple flowers; ideal for coastal gardens.
- Hebe 'Green Globe' — Dwarf, rounded form with bright green leaves; excellent for low hedges.
- Hebe 'Pink Elephant' — Upright shrub with pink flowers and dark green foliage; popular in mixed borders.
Soil Preparation
Hebe prefers slightly acidic to neutral soil (pH 6.0–7.0) with good drainage. Before planting, dig in well-rotted compost or aged manure to improve moisture retention. If soil is heavy clay, raise beds or add gypsum to improve drainage.
Growing Guide
Plant hebe in well-drained soil enriched with organic matter, in a position that receives morning sun and afternoon shade. Space plants 60–80 cm apart for a dense hedge or 1 m apart for individual specimens. Water deeply after planting and weekly until established; then reduce to fortnightly in dry periods. Avoid heavy clay or waterlogged sites.
Care
Feed with a balanced slow-release fertiliser in early spring and again after flowering. Prune lightly after flowering to maintain shape and remove spent blooms. Mulch around the base to retain moisture and suppress weeds.
Companion Planting
Pair hebe with roses, lavender, and salvia for a complementary colour and texture display. It also works well with other shrubs like choisya and pittosporum. Avoid planting near vigorous groundcovers that may compete for moisture.
Common Pests & Risks
Aphids and scale can cluster on new growth and stems; treat with horticultural oil or insecticidal soap. Fungal diseases like powdery mildew and root rot appear in humid or poorly drained sites; improve air circulation and avoid overhead watering. Check for leaf spot in wet weather.
Troubleshooting
Yellow leaves: overwatering or poor drainage; reduce watering and improve soil. Brown leaf edges: wind or salt burn; shelter from strong winds. Stunted growth: nutrient deficiency; apply balanced fertiliser in spring. Powdery mildew: fungal disease in humid conditions; improve air circulation and treat with fungicide.