Masses of small, rich violet-blue fragrant flowers appear in June and July above the hairy, bright green leaves of this spreading, semi-evergreen perennial phlox. Height 35cm. Spread 50cm. Partial shade. Moist, well-drained soil. Hardy.
Phlox divaricata ‘Blue Moon’ is a charming spreading perennial admired for its fragrant violet-blue flowers that appear above fresh green foliage. Furthermore, its semi-evergreen habit and woodland character make it ideal for shaded borders, naturalistic planting, and ground cover.
PLANTING and AFTERCARE GUIDE
Best Planting Time
Spring: The ideal time to plant Phlox divaricata ‘Blue Moon’ is in spring when soil conditions allow roots to establish before the main growing season.
Early Autumn: Alternatively, planting in early autumn allows the plant to settle in before dormancy and supports strong growth the following year.
Site Selection
Sunlight: Phlox divaricata ‘Blue Moon’ thrives in partial shade. Therefore, choose a location with dappled light or gentle morning sun to encourage healthy growth and abundant flowering.
Soil: Moist, well-drained soil rich in organic matter is best. Improving the planting area with compost will help maintain the consistent moisture that this plant prefers.
Planting Instructions
Prepare the Hole: Dig a hole twice the width of the root ball and the same depth to allow the roots to spread comfortably.
Soil Preparation: Mix compost or organic matter into the soil to enhance fertility and improve moisture retention.
Planting: Position the plant so the top of the root ball is level with the surrounding soil, then backfill and gently firm the soil.
Watering After Planting: Water thoroughly to settle the soil and help Phlox divaricata ‘Blue Moon’ establish strong roots.
Watering Requirements
Growing Season: Keep the soil consistently moist during active growth. Regular watering will help maintain healthy foliage and produce abundant blooms.
Dormant Season: Reduce watering when growth slows, although the soil should not be allowed to dry out completely.
Feeding
Spring: Apply a balanced fertiliser in early spring to support fresh foliage and flowering.
Mid-Season: Additionally, a light feed during the growing season can help maintain the vigour of Phlox divaricata ‘Blue Moon’.
Pruning
Deadheading: Remove spent flowers to keep the plant tidy and encourage additional blooms.
Seasonal Care: Trim back any untidy stems after flowering to maintain the neat spreading habit of your Phlox.
Mulching
Spring: Apply organic mulch around the base to help retain moisture and suppress weeds.
Later in the Year: Mulching also improves soil structure and supports the long-term health of Phlox divaricata ‘Blue Moon’.
Supporting the Plant
Natural Habit: Phlox forms a low spreading clump and generally does not require staking. It works particularly well planted among other shade-loving perennials.
Final Tips
Phlox divaricata ‘Blue Moon’ is a beautiful, low-maintenance perennial that adds colour and fragrance to partially shaded areas. With moist, fertile soil and gentle light, Phlox divaricata ‘Blue Moon’ will spread gradually and provide a reliable display of soft violet-blue flowers each year.
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