Position

Sun exposure:
Full sun
Aspect:
South facing, west facing
Position in border:
Back, middle

Soil

Acidic / Boggy / Chalky / Alkaline / Clay / Heavy / Moist

Purple loosestrife, Lythrum salicaria, is a tall-growing wildflower that grows naturally on banks of streams and around ponds. It has strong, upright stems, from which long, poker-like heads of bright purple-red flowers appear from midsummer. Its flowers are extremely attractive to bees and butterflies.

Lythrum salicaria ‘Robert’ bears tall spires of rose pink flowers. It’s ideal for growing at the pond edge but will also thrive at the back of a moist, sunny border or bog garden – it makes a great choice for an informal cottage or wildlife garden.

Grow Lythrum salicaria ‘Robert’ in moist soil. Water frequently in dry weather and cut back old growth in spring. Divide clumps every three to five years.

Plant calendar

JanFebMarAprMayJunJulAugSepOctNovDec
Plantyesyesyesyesyes
Flowersyesyes
Divideyesyes
At its bestyesyes

Lythrum ‘Robert’ and wildlife

Lythrum ‘Robert’ is known for attracting bees, beneficial insects, butterflies/moths and other pollinators. It has nectar/pollen rich flowers.

Is known to attract Bees
Bees
Is known to attract Beneficial insects
Beneficial insects
Is not known to attract Birds
Birds
Is known to attract Butterflies/​Moths
Butterflies/​Moths
Is known to attract Other pollinators
Other pollinators

Is Lythrum ‘Robert’ poisonous?

Lythrum ‘Robert’ has no toxic effects reported.

No reported toxicity to:
Is not known to attract Birds
Birds
Is not known to attract Cats
Cats
Is not known to attract Dogs
Dogs
Is not known to attract Horses
Horses
Is not known to attract Livestock
Livestock
Is not known to attract People
People
Plants that go well with Lythrum 'Robert'
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