Loosestrife ‘Robert’ (Lythrum salicaria ‘Robert’)

Loosestrife ‘Robert’ | Lythrum salicaria ‘Robert’

Compact rose pink flowering pond plant for margins and pollinator friendly gardens

Loosestrife ‘Robert’, botanically known as Lythrum salicaria ‘Robert’, is a vibrant and compact marginal pond plant that delivers a stunning display of rich rose pink flower spikes throughout the summer months. Flowering from June through to September, this variety is perfect for adding bold colour, height, and structure to pond edges, bog gardens, and damp borders.

Unlike the taller wild forms of loosestrife, ‘Robert’ offers a more controlled, clump forming habit, making it ideal for smaller ponds and more refined planting schemes. Its upright stems are packed with vivid pink blooms that stand proudly above lance shaped green foliage, creating a striking contrast that draws the eye and enhances any water feature.

This plant is not just about appearance. It is a magnet for pollinators, attracting bees, butterflies, and hoverflies throughout its long flowering period. This makes it an excellent choice for wildlife friendly ponds where biodiversity is a priority. The dense growth also provides shelter for amphibians such as frogs and newts, helping to create a balanced and thriving pond ecosystem.

Loosestrife ‘Robert’ thrives in moist to wet soil conditions and can be planted in shallow water up to around 5 cm deep. It performs best in full sun where it will produce the most abundant flowering, but it will tolerate partial shade if needed.

Extremely hardy and reliable in UK conditions, this plant will return year after year with very little maintenance. Its compact size, long flowering period, and wildlife benefits make it a fantastic all round choice for pond owners looking to combine colour with ecological value.

Whether you are planting a natural wildlife pond or a more decorative water feature, Loosestrife ‘Robert’ provides dependable performance and eye catching summer colour.

🇬🇧 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

• Bright rose pink flower spikes from early summer to autumn
• Compact growth ideal for smaller ponds and margins
• Highly attractive to bees and pollinators
• Adds vertical structure and strong colour
• Hardy and reliable in UK conditions
• Supports wildlife and pond biodiversity

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Reasons to Buy

• Long flowering period for extended colour
• Perfect for pond edges and damp borders
• Excellent choice for wildlife friendly planting
• Easy to grow and low maintenance
• Compact form compared to wild loosestrife varieties

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Care Instructions

• Plant on a marginal shelf or in damp soil at a depth of 0 cm to 5 cm.
• Position in full sun for the best flowering display, though partial shade is tolerated.
• Keep soil consistently moist or wet at all times.
• Deadhead spent flowers to encourage continued blooming.
• Cut back foliage in late autumn after flowering has finished.
• Divide clumps every 3 to 4 years in early spring to maintain vigour.

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Flowering Period

June to September

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Size and Growing Conditions

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Dispatching Your Pond Plants

Your Loosestrife ‘Robert’ 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 Purple Loosestrife (Lythrum salicaria) and Louisiana Iris ‘Heather Stream’ (Iris ‘Heather Stream’).

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.