Campsis × tagliabuana ‘Madame Galen’, commonly known as the trumpet vine, is a fast-growing, deciduous climbing plant known for its stunning, trumpet-shaped flowers in salmon-orange to reddish-orange hues. Here’s a detailed planting guide to help you grow Campis x Madame Galen successfully:
1. Choosing the Right Location
- Sunlight: Full sun is best for flowering, though partial shade can be tolerated.
- Climate: Grows well in USDA Zones 5-9, making it suitable for most regions in New Zealand except for very cold inland areas.
- Soil: Adaptable to most soil types but thrives in well-drained, fertile soil.
- Watering: Drought-tolerant once established, though regular watering in dry spells promotes better flowering.
- Fertilization: Generally low-maintenance; too much fertiliser can promote excessive foliage at the expense of flowers.
2. Planting Time
- Best time to plant: Spring (September–November): Best for giving the plant a full growing season to establish.
Early Autumn (March–April): Allows roots to establish before winter.
3. Preparing the Planting Site
- Soil Preparation: Campsis × tagliabuana thrives in well-drained, moderately fertile soil. Aim for a slightly acidic to neutral pH (6.0–7.5). If the soil is heavy clay, improve drainage by adding organic matter (compost or well-rotted manure). If the soil is too sandy, mix in organic matter to improve water retention.
- Watering the Hole: Water deeply after planting to help roots establish.
4. Planting the Hosta
- Plant Placement: If planting near a wall or structure, place the hole 30-45cm away to prevent root competition. Carefully remove the plant from its container and gently loosen the roots if they are root-bound. Place the plant in the hole at the same depth it grew in the container.
- Backfilling: Backfill with soil, firming it down gently to eliminate air pockets.
5. Watering and Fertilising
6. Mulching and Maintenance
- Mulching: Apply a 2–3 inch layer of mulch (wood chips, bark, or straw) around the base to retain moisture and suppress weeds. Keep the mulch a few inches away from the stem to prevent rot.
- Maintenance: Secure young vines to a trellis or support with soft ties or garden twine to guide their growth.
7. Pest and Disease Control
- Pests: Generally resistant but can sometimes attract aphids, scale insects, or powdery mildew.
- Aggressive Growth: Can become invasive in some regions if not properly maintained.
8. Winter Care
- In colder regions, add a layer of mulch or dry leaves around the base for insulation. If frost is severe, wrap young plants in frost cloth.
9. Common Uses
- Low-maintenance once established.
- Drought-tolerant and adaptable to different soil types.
- Attracts pollinators, making it great for biodiversity.
- Provides fast-growing coverage for fences, pergolas, and walls.
10. Common Varieties
- Campsis × tagliabuana ‘Indian Summer’ – A more compact variety than ‘Madame Galen’ (reaches 3–4m instead of 6–9m). It has smaller, softer orange flowers with a yellow throat.
- Campsis × tagliabuana ‘Summer Jazz Fire’ – A dwarf trumpet vine, making it ideal for smaller gardens or container growing. It has fiery red-orange flowers.
- Campsis × tagliabuana ‘Golden Trumpet’ – A rare yellow-flowering variety within the Campsis × tagliabuana group. It produces bright golden-yellow trumpet-shaped blooms.
11. Tips for Success
- Prune for Strong Growth
- Watch for powdery mildew in humid conditions—ensure good air circulation.
With the right sunny spot, good soil preparation, and proper support, Campsis × tagliabuana ‘Madame Galen’ will thrive in New Zealand’s climate, bringing vibrant colour and wildlife to your garden!
