A vibrant perennial with upright stems bearing deep-crimson flowers on tall spikes from mid to late summer. Striking dark, bronze-purple foliage. Height 75cm. Spread 30cm. Full sun/partial shade. Moist, well drained soil. Hardy.
Lobelia x speciosa ‘Crimson Princess’ is a striking perennial featuring rich crimson flower spikes and dark bronze-purple foliage. Ideal for adding bold colour and vertical interest, Lobelia x speciosa ‘Crimson Princess’ performs beautifully in borders and moisture-retentive planting schemes.
PLANTING and AFTERCARE GUIDE
Best Planting Time
Spring: Plant in spring when the soil is workable and beginning to warm, allowing roots to establish well.
Early Autumn: Alternatively, early autumn planting helps your Lobelia develop a strong root system before dormancy.
Site Selection
Sunlight: Thrives in full sun or partial shade, offering flexibility in positioning.
Soil: Prefers fertile, moist but well-drained soil. Incorporating compost or organic matter will improve growing conditions.
Planting Instructions
Prepare the Hole: Dig a hole twice the width and the same depth as the root ball.
Soil Preparation: Mix compost or well-rotted organic matter into the soil.
Planting: Position the plant so the crown sits level with the soil surface.
Backfill: Firm gently around the roots.
Watering After Planting: Water thoroughly to help Lobelia x speciosa ‘Crimson Princess’ establish.
Watering Requirements
Growing Season: Keep the soil evenly moist during active growth to support healthy foliage and flowering.
Dry Periods: Regular watering is essential, as it thrives in consistent moisture.
Feeding
Spring: Apply a balanced fertiliser in early spring to encourage strong growth.
Mid-Season: A light supplementary feed can help maintain vigour of the plant.
Pruning
Deadheading: Remove faded flower spikes regularly to prolong blooming.
Seasonal Care: Trim back tired stems to maintain a neat appearance.
Mulching
Spring: Apply a layer of organic mulch to retain moisture and suppress weeds.
Ongoing Care: Mulching improves soil structure and supports Lobelia x speciosa ‘Crimson Princess’ throughout the growing season.
Supporting the Plant
Growth Habit: Upright stems may benefit from light support in exposed areas.
Placement: Ideal for middle or back of borders where height and colour can stand out.
Final Tips
Lobelia x speciosa ‘Crimson Princess’ is a hardy, eye-catching perennial that delivers vibrant colour from mid to late summer. With moist, fertile soil and regular care, it will thrive and provide a dramatic garden display year after year.
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