Hardy Geranium. Beautiful clusters of lilac/blue saucer shaped flowers et against stunning dark red/black foliage. Height 20cm. Spread 30cm. Flowers from May to October. Full sun/partial shade. Hardy.
Geranium pratense ‘Black Beauty’ is a striking hardy perennial admired for its lilac-blue saucer-shaped flowers set against dramatic dark red to black foliage. Because of its compact size—reaching around 20 cm tall with a 30 cm spread—it fits beautifully into borders, mixed beds, cottage-style plantings, and wildlife-friendly gardens. As this guide explains, Geranium pratense ‘Black Beauty’ is both eye-catching and easy to grow, making it an excellent addition to any outdoor space.
PLANTING and AFTERCARE GUIDE
Best Planting Time
Plant Geranium pratense ‘Black Beauty’ when the soil naturally begins to warm or retains gentle warmth. Consequently, the roots establish more efficiently, which ensures strong growth before its long flowering season from May to October. Additionally, early establishment helps produce fuller foliage and more abundant blooms.
Site Selection
Sunlight: Choose a position in full sun or partial shade. With adequate light, Geranium develops its richest foliage tones and its most vibrant flower colour. Moreover, consistent sunlight encourages compact, healthy growth throughout the season.
Soil: Geranium thrives in well-drained, moderately fertile soil. Therefore, avoid heavy or waterlogged areas. If needed, improve drainage with compost or grit to support root health and prevent rot. As a result, the plant grows more vigorously and flowers more reliably.
Planting Instructions
Prepare the Hole: Dig a hole twice the width of the root ball and equal in depth. This allows plenty of space to develop its root system.
Soil Preparation: Mix compost or well-rotted organic matter into the surrounding soil to enhance structure and drainage. Consequently, the plant receives an ideal blend of moisture retention and airflow.
Planting: Position the plant so the top of the root ball sits level with the soil surface. Gently backfill and firm the soil to remove air pockets, ensuring steady root-to-soil contact.
Watering After Planting: Water thoroughly after planting to settle the soil around the roots. This initial hydration supports quick establishment and encourages early growth.
Watering Requirements
Growing Season: Water moderately, allowing the soil surface to dry slightly between sessions. Because Geranium prefers free-draining soil, consistent but measured watering prevents stress and helps sustain flowering.
Dormant Period: During periods of reduced growth, water sparingly. Only provide moisture when the soil becomes particularly dry. This approach mirrors the plant’s natural rhythm and prevents unnecessary root saturation.
Feeding
Spring: Apply a balanced fertiliser to encourage the emergence of healthy new foliage and abundant flower buds.
Mid-Summer:A gentle supplementary feed can help maintain vigour, especially as it continues flowering well into autumn.
Pruning
Deadheading: Remove spent flowers regularly to prolong the blooming period. As a result, Geranium pratense ‘Black Beauty’ redirects energy into producing fresh blooms rather than seed production.
Seasonal Cutting Back: After flowering, lightly trim back the foliage to refresh the plant and promote tidier, more compact growth. This practice also encourages a healthier return the following season.
Mulching
Spring Mulch: Apply a thin layer of organic mulch to conserve moisture, suppress weeds, and regulate soil temperature around Geranium pratense ‘Black Beauty’.
Supporting the Plant
Given its compact 20 cm height and low, tidy form, Geranium typically requires no staking. Its dense foliage and spreading habit make it excellent for edging and for adding contrast among lighter-leafed perennials.
Final Tips
Geranium pratense ‘Black Beauty’ is a hardy, rewarding perennial that provides months of stunning colour and rich foliage contrast. Consequently, planting it in a bright, well-drained location, watering moderately, and feeding lightly will ensure years of dependable performance. With just a little care, this Geranium will thrive and bring lasting beauty to your garden from spring through autumn.
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