Geranium pratense ‘Striatum’ (Splish Splash)

Description

Geranium pratense ‘Striatum’ is a striking perennial geranium admired for its large white flowers splashed with lavender-blue. Growing to a height and spread of 50cm, it produces long-lasting blooms from June to September. This hardy, low-maintenance plant is perfect for borders, cottage gardens, or mixed perennial beds. Follow this guide to ensure your Geranium pratense ‘Striatum’ thrives and delivers a vibrant floral display.

PLANTING and AFTERCARE GUIDE

Best Planting Time

• Spring: The optimal time to plant Geranium pratense ‘Striatum’ is in spring. Planting during this period allows roots to establish before the peak flowering season, ensuring healthy growth and abundant blooms.
• Autumn: Early autumn is also suitable. Planting at this time helps Geranium pratense ‘Striatum’ settle in before dormancy, encouraging strong growth the following year.

Site Selection

• Sunlight: Geranium pratense ‘Striatum’ flourishes in full sun to partial shade. Choose a site that receives at least 4–6 hours of sunlight per day for optimal flower production.
• Soil: Ensure well-drained soil for Geranium pratense ‘Striatum’. Adding organic matter such as compost improves fertility and supports vigorous growth while preventing root problems.

Planting Instructions

1. Prepare the Hole: Dig a hole twice the width and the same depth as the root ball to provide adequate space for root expansion.
2. Soil Preparation: Mix in compost or well-rotted organic matter to improve soil structure and nutrient content.
3. Planting: Position your Geranium so the top of the root ball is level with the surrounding soil. Backfill gently, firming the soil to remove air pockets.
4. Watering After Planting: Water thoroughly after planting to help the roots settle and encourage strong establishment.

Watering Requirements

• Growing Season: Keep soil evenly moist during the first growing season while Geranium pratense ‘Striatum’ establishes. Once mature, it tolerates occasional dry periods but benefits from regular watering in prolonged dry spells.
• Dormant Season: Reduce watering as growth slows. Only water if the soil becomes very dry.

Feeding

• Spring: Apply a balanced, slow-release fertiliser in early spring to promote strong foliage and abundant flowering.
• Mid-Summer: A light feed can extend flowering and maintain the plant’s vigour through the blooming season.

Pruning

• Deadheading: Remove spent flowers regularly to encourage more blooms and maintain a tidy appearance.
• Autumn Pruning: After flowering ends, cut back stems to tidy the plant and prepare Geranium pratense ‘Striatum’ for the dormant season.

Mulching

• Spring: Apply mulch around the base of Geranium pratense ‘Striatum’ to conserve moisture, suppress weeds, and regulate soil temperature.
• Winter: A mulch layer also protects roots during colder months, ensuring the plant survives and thrives in the next growing season.

Supporting the Plant

Geranium pratense ‘Striatum’ naturally forms a compact mound, so staking is usually unnecessary. In exposed or windy locations, light support can prevent flopping.

Final Tips

Geranium pratense ‘Striatum’ is a hardy, low-maintenance perennial that brings vibrant colour and texture to any garden. Plant in well-drained soil with full sun or partial shade, feed occasionally, and prune as needed. With this care, this Geranium will reward you with a long season of white and lavender-blue blooms, making it an ideal choice for borders, cottage gardens, and perennial beds.