Summer Snowflake (Gratiola officinalis)

Summer Snowflake | Gratiola officinalis

Delicate white flowering marginal pond plant perfect for wildlife ponds and natural pond edges

Summer Snowflake, scientifically known as Gratiola officinalis, is a charming and delicate marginal pond plant that brings understated beauty and natural elegance to pond margins, bog gardens, and damp planting areas. Producing masses of small white to pale pink tubular flowers from late spring through to early autumn, this graceful perennial creates a soft and natural display that blends beautifully into wildlife friendly pond settings.

Native to wetland habitats across parts of Europe, Summer Snowflake thrives in shallow water and permanently moist soils, making it an ideal choice for pond shelves, damp borders, and bog gardens. Its slender upright stems are lined with narrow lance shaped green leaves, while the elegant flowers appear delicately spaced along the stems, giving the plant a light and airy appearance.

One of the standout qualities of Gratiola officinalis is its long flowering season. Blooming from May through to September, it provides valuable late spring and summer colour around the pond edge while also supporting pollinators such as bees, hoverflies, and beneficial insects. The flowers may appear white or occasionally flushed with pale pink tones depending on growing conditions and maturity.

Summer Snowflake works especially well in naturalistic pond planting schemes where softer textures and wildlife value are important. Its gently spreading growth habit helps soften hard pond edges and transitions beautifully between water and surrounding garden planting. It also pairs wonderfully with creeping pond plants, water forget me not, and low growing marginals.

Despite its delicate appearance, this plant is hardy and reliable in UK conditions. Once established, it requires very little maintenance and performs best when planted in consistently moist soil or shallow water up to approximately 5 cm deep. It is suitable for ponds of all sizes, including smaller wildlife ponds and decorative patio ponds.

Because of its relatively compact size, Summer Snowflake is easy to position within mixed marginal planting displays without becoming overpowering. The neat upright habit also helps provide subtle vertical structure around shallow pond shelves while maintaining a soft and relaxed appearance.

For gardeners looking to encourage biodiversity while also adding elegant seasonal colour to pond margins, Summer Snowflake is an excellent choice. Its long flowering period, wildlife friendly nature, and delicate appearance make it a superb addition to both traditional and contemporary water gardens.

🇬🇧 UK-grown aquatic plant: Grown at a dedicated aquatic plant nursery in the South of England and carefully prepared for delivery across the UK.

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Key Benefits

• Elegant white and pale pink flowers from spring to autumn
• Excellent pollinator friendly pond plant
• Perfect for pond margins and bog gardens
• Softens hard pond edges naturally
• Compact and easy to manage growth habit
• Suitable for wildlife ponds and patio ponds
• Long flowering season provides extended interest
• Hardy and low maintenance in UK gardens

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Reasons to Buy

• Beautiful delicate flowers with a natural appearance
• Ideal for wildlife friendly pond planting schemes
• Easy to grow in shallow water or damp soil
• Excellent companion plant for marginal pond displays
• Provides long lasting seasonal colour around ponds
• Compact size suitable for smaller ponds and containers

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Care Instructions

• Plant Summer Snowflake in shallow water or consistently damp soil for best results. Position in full sun or partial shade, although sunnier locations generally encourage more prolific flowering.
• Avoid allowing the soil to dry out completely during warmer weather, particularly if planted in boggy borders rather than directly within the pond margin.
• Trim back faded growth and old stems in autumn once the foliage naturally dies back. This encourages fresh vigorous growth the following spring.
• This plant requires very little maintenance once established and is generally trouble free in UK pond conditions.

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Flowering Period

May to September

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Size and Growing Conditions

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Dispatching Your Pond Plants

Your Summer Snowflake will be carefully packed to protect the foliage and roots during transit.

Orders received by 11am Monday to Wednesday are normally dispatched on the following working day using a next working day courier service. During busy periods, dispatch may occasionally take an extra day.

To avoid plants being held in depots over a weekend, we do not usually dispatch on Fridays. Highlands and Islands orders using a two day service are not normally dispatched on Thursdays.

Available basket sizes:

• Pack of 3 × 9cm Pots
• 1 Litre Basket – usually 11 × 11 × 11cm square; some varieties may be supplied in a 14cm diameter × 10cm round basket
• Pack of 3 × 1 Litre Baskets – each usually 11 × 11 × 11cm square

Planting depth is measured from the top of the aquatic basket to the water surface.

Plants supplied in 9cm pots require potting into suitable aquatic baskets before being placed in the pond.

Finofil baskets are manufactured in the UK from 100% recycled plastic and are fully recyclable. Their fine dual-mesh construction helps retain aquatic soil while allowing water and nutrients to reach the roots. Basket shape may vary slightly depending on the plant and supplier availability.

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Similar pond plants

For another pond-edge planting option, compare Chameleon Plant (Houttuynia cordata ‘Chameleon’) and Sunburst Yellow Loosestrife (Lysimachia christinae ‘Sunburst’).

Explore more marginal pond plants or browse our complete pond plants range. Need baskets, aquatic soil or planting essentials? Browse our pond plant baskets and aquatic planting supplies.