An erect perennial with toothed mid-green leaves and spikes of pretty soft-pink flowers from July to September. Height 60cm. Spread 40cm. Full sun/partial shade. Moist well-drained soil. Hardy.
Physostegia virginiana ‘Rosea’ is an upright, clump-forming perennial valued for its soft pink flower spikes and fresh mid-green foliage. Furthermore, its structured habit makes it ideal for borders, naturalistic planting, and moisture-retentive garden areas.
PLANTING and AFTERCARE GUIDE
Best Planting Time
Plant Physostegia virginiana ‘Rosea’ when the soil is workable and beginning to warm. At this stage, root growth is more active and, therefore, the plant establishes quickly ahead of its flowering period from mid to late summer.
Site Selection
Sunlight: Choose a site in full sun or partial shade. Adequate light, as a result, promotes strong upright growth and abundant flowering on Physostegia virginiana ‘Rosea’.
Soil: Moist but well-drained soil is essential. Improving the planting area with organic matter helps retain moisture while still allowing excess water to drain freely.
Planting Instructions
Prepare the Hole: Dig a hole twice the width of the root ball and the same depth to allow roots to spread comfortably.
Soil Preparation: Incorporate compost into the excavated soil to improve structure and moisture retention.
Planting: Place the plant so the top of the root ball is level with the soil surface, then backfill and firm gently.
Water Thoroughly: Water well after planting to settle the soil and support early establishment of Physostegia virginiana ‘Rosea’.
Watering Requirements
Growing Season: Water regularly to keep the soil consistently moist, especially during active growth. Consequently, this supports healthy foliage and flower production.
Dormant Period: Reduce watering significantly, applying moisture only when the soil begins to dry, which helps Physostegia virginiana ‘Rosea’ maintain its natural growth rhythm.
Feeding
Spring: Apply a balanced fertiliser to encourage strong stem development and healthy foliage.
Mid-Season: Additionally, a light supplementary feed can help sustain flowering performance through the summer months.
Pruning and Maintenance
Deadheading: Remove spent flower spikes regularly to keep plants tidy and extend the flowering display. This also directs energy back into Physostegia virginiana ‘Rosea’.
Seasonal Cutting Back: Cut back stems after flowering finishes to refresh growth and maintain a neat structure.
Mulching
Spring Mulch: Apply organic mulch to conserve moisture, suppress weeds, and improve soil quality.
Protective Mulch: Later in the year, mulching helps protect the roots and supports long-term plant health.
Final Tips
Physostegia virginiana ‘Rosea’ is a hardy, dependable perennial that thrives with consistent moisture and minimal maintenance. Plant it in a suitable position, provide regular care, and Physostegia virginiana ‘Rosea’ will reward you with elegant flower spikes and reliable seasonal colour year after year.
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