Clusters of elegant, soft lilac-pink tubular flowers with pale throats appear for several months from midsummer above mounds of fresh mid-green foliage. Height 60cm. Spread 45cm. Flowers from July to October. Full sun/partial shade. Hardy.
Penstemon ‘Pensham Capricorn Moon’ is a charming perennial known for its soft lilac-pink tubular flowers with pale throats and lush mid-green foliage. With its long flowering period from July to October, it makes a vibrant addition to borders and mixed garden displays. Follow this comprehensive guide to help Penstemon ‘Pensham Capricorn Moon’ thrive and provide months of floral interest.
PLANTING and AFTERCARE GUIDE
Best Planting Time
Spring: The best time to plant Penstemon ‘Pensham Capricorn Moon’ is in spring, once the soil has warmed. Planting during this time allows the root system to establish well before flowering begins.
Autumn: Alternatively, planting in early autumn gives Penstemon time to settle before winter. This supports healthy root development for vigorous growth the following year.
Site Selection
Sunlight: Choose a site that receives full sun or partial shade. Penstemon flowers best in areas with at least 6 hours of sunlight per day.
Soil: Plant in moist, free-draining soil. Good drainage is essential, as Penstemon does not tolerate soggy roots. Improve poor soils with compost or organic matter.
Planting Instructions
Prepare the Hole: Dig a hole twice the width and the same depth as the root ball.
Improve the Soil: Enrich the planting area with compost to boost fertility and drainage—key to strong, healthy growth for Penstemon ‘Pensham Capricorn Moon’.
Planting: Position the plant so the top of the root ball is level with the surrounding soil. Backfill and firm gently.
Watering In: Water thoroughly after planting to help settle the soil around the roots.
Watering Requirements
During the growing season, water Penstemon ‘Pensham Capricorn Moon’ regularly, especially in dry spells. Let the soil dry out slightly between waterings.
Reduce watering in autumn as flowering slows. In winter, only water if conditions are very dry.
Feeding
In early spring, feed Penstemon ‘Pensham Capricorn Moon’ with a balanced fertiliser to kickstart growth.
Apply a second light feed in midsummer to encourage continued flowering and maintain plant vigour.
Pruning and Deadheading
Deadheading: Remove faded flowers throughout the season to promote ongoing blooming. This keeps your Penstemon looking tidy and productive.
Autumn Cutback: After the final flush of flowers, cut back stems by about a third. Leave some foliage over winter for protection and prune harder in spring.
Mulching
In spring, mulch around the base of Penstemon ‘Pensham Capricorn Moon’ with compost or bark to retain moisture, suppress weeds, and improve soil health.
Apply a protective mulch in winter to insulate roots and prevent frost damage.
Supporting the Plant
Penstemon ‘Pensham Capricorn Moon’ usually maintains a neat, upright habit, but in exposed gardens, light staking may be necessary during peak flowering.
Final Tips
Penstemon is a reliable and low-maintenance perennial that delivers colour for months. By giving it a sunny spot with fertile, free-draining soil and following this care guide, you’ll enjoy beautiful, soft-hued blooms all summer and into autumn. Whether used in borders, cottage gardens, or pollinator-friendly displays, Penstemon ‘Pensham Capricorn Moon’ adds lasting beauty and elegance to any outdoor space.
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