Geranium pratense ‘Midnight Reiter’

Description

Geranium pratense ‘Midnight Reiter’ is a striking hardy perennial known for its deep purple foliage and clusters of lilac-blue flowers that appear from June to August. Because of its compact 40 cm height and rich colouring, Geranium pratense ‘Midnight Reiter’ is perfect for borders, containers, cottage gardens and mixed perennial displays. Follow this comprehensive guide to help your Geranium flourish throughout the growing season.

PLANTING and AFTERCARE GUIDE

Best Planting Time

Plant Geranium pratense ‘Midnight Reiter’ when the soil naturally begins to warm or still retains gentle warmth, as this encourages strong early root development and ensures healthy growth ahead of flowering.

Site Selection

• Sunlight: Choose a position with full sun or partial shade, as this enhances flower colour and helps Geranium pratense ‘Midnight Reiter’ maintain its rich purple foliage throughout the season. Adequate light also promotes sturdy, upright stems.
• Soil: Geranium thrives in well-drained, moderately fertile soil. Improving heavy or compacted ground with compost or grit boosts drainage and structure, which consequently supports root strength and reliable flowering.

Planting Instructions

1. Prepare the Hole: Dig a hole twice the width of the root ball and equal in depth, allowing ample room to establish a healthy root system.
2. Soil Preparation: Mix compost or organic matter through the soil to enhance fertility and texture, resulting in improved establishment and growth.
3. Planting: Position the plant so the top of the root ball sits level with the soil surface, then gently backfill and firm to remove air pockets.
4. Watering After Planting: Water thoroughly to settle the soil and help moisture reach the root zone without becoming waterlogged.

Watering Requirements

• Growing Season: Water moderately, allowing the soil surface to dry slightly between waterings. Since Geranium prefers good drainage, this helps support vigorous flowering without the risk of overwatering.
• Dormant Period: Water sparingly and only when the soil becomes noticeably dry. This supports the plant’s natural rest cycle and prevents excess moisture around the roots.

Feeding

• Spring: Apply a light, balanced fertiliser to promote healthy new foliage and encourage early flower development, setting the foundation for a strong season.
• Mid-Summer: Provide a gentle supplementary feed to maintain vigour and support continuous flowering throughout June to August.

Pruning

• Deadheading: Remove spent flowers regularly to encourage ongoing blooms and maintain a tidy appearance, helping channel energy into fresh bud production.
• Seasonal Cutting Back: After the flowering period, trim stems lightly to refresh the plant and promote neat regrowth.

Mulching

• Spring Mulch: Apply a thin layer of organic mulch to conserve moisture, suppress weeds and improve soil quality around Geranium pratense ‘Midnight Reiter’.
• Winter Mulch: A protective mulch helps stabilise soil temperature and supports strong root health for the following year.

Supporting the Plant

With its compact 40 cm height, Geranium rarely needs staking; however, in more exposed areas, light support can help prevent leaning during peak flowering.

Final Tips

Geranium pratense ‘Midnight Reiter’ is a hardy, low-maintenance perennial that provides bold colour and striking foliage contrast. By planting it in a sunny or lightly shaded, free-draining site, watering moderately and feeding occasionally, you will enjoy dependable growth and vibrant blooms every summer. With minimal care, Midnight Reiter becomes a standout feature year after year.

RHS Details

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