Lythrum 'Lady Sackville'
"Purple loosestrife"
Orders placed until 29 February 2027
You can expect your order in February/March 2027
Orders placed 1 March - 15 April 2027
You can expect your order in March/April 2027
Orders placed 16 April - 15 May 2027
You can expect your order within 10 business days
Free tracked delivery
on orders over £50
Tracked delivery £4.99
on orders under £50
All orders are responsibly packed and delivered carbon neutral — Learn more
Delivery to Northern Ireland
Tracked delivery £6.99
on orders under £50
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Description
Reliable, upright, and richly coloured, Lythrum 'Lady Sackville' is a refined selection of the much-loved purple loosestrife, bringing vibrant structure to summer borders. Forming a neat clump of dark green, strap-like foliage, Lythrum 'Lady Sackville' produces sturdy vertical stems that rise confidently to around 80cm. From midsummer onwards these stems are crowned with slender flower spikes, each one studded with clusters of vivid purple-red blooms. The colour of Lythrum 'Lady Sackville' is particularly striking in warm sunlight, glowing against surrounding greenery and adding a lively vertical accent among softer perennials. Despite its bold presence, Lythrum 'Lady Sackville' carries an easy, natural elegance that suits both relaxed cottage-style planting and more considered border designs.
Thriving in moisture-retentive soil, Lythrum 'Lady Sackville' is especially at home beside ponds, streams or in damp borders where its upright habit provides welcome height and rhythm. Over time, Lythrum 'Lady Sackville' develops into a handsome, clump-forming perennial that returns each year with dependable vigour. The glowing flower spikes of Lythrum 'Lady Sackville' are also highly attractive to pollinating insects, bringing welcome movement and life to the garden through the warmest months. Combined with ornamental grasses, persicaria or late-flowering salvias, Lythrum 'Lady Sackville' delivers colour, structure and wildlife value in one graceful, easy-going plant.
Lythrum comes from the Greek word lythron, meaning "blood"—an apt nod to its richly coloured flowers.
Key features
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Comes back every year
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Attractive to wildlife
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Loved by pollinators
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In peat-free compost
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Low maintenance
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Fully hardy
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Rodent resistant
Specs & details
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Botanical name
Lythrum salicaria 'Lady Sackville'
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Flower colour
Purple
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Plant size
1
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Established height
70cm-1m
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Established spread
30-50cm
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Plant spacing
9 plants per m2
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Leaf colour
Green
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Habit
Upright
Clump-forming -
Life cycle
Perennial
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Hardiness
Fully hardy
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Years to establish
1-2 years
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Sunlight
Full sun
Partial shade -
Position
Sheltered
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Suitable for
Large containers
Borders
Meadows
Wildlife gardens
Cottage gardens
Low maintenance gardens -
Soil acidity
Any
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Soil moisture
Free draining
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Soil type
Loam
Loam-based compost
Multipurpose compost -
RHS Award (AGM)
Yes
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Growing skill
Easy to grow
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Scented
No
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Pollinator-friendly
Yes
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Mouse resistant
Yes
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Rabbit resistant
No
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Deer resistant
No
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Toxicity
No report
Plant calendar
| Jan | Feb | Mar | Apr | May | June | July | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
- Planting
- Flowering
Useful information
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Soak the Lythrum 'Lady Sackville' roots in water for 3-6 hours prior to planting
Plant your "Purple loosestrife" bare roots into temporary pots with a multipurpose compost within a week of delivery and grow-on in a sheltered spot outdoors
Choose a pot which comfortably fits the bare roots. Some have a noticeable crown which should be just below the soil surface with any top growth exposed. Some varieties are a length of root which should be planted lengthways and shallowly (1-2cm deep).
Plant out into borders or permanent containers in late spring or early summer once in full growth. Choose a position in sun or shade depending on the variety.
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Orders placed until 29 February 2027
You can expect your order in February/March 2027Orders placed 1 March - 15 April 2027
You can expect your order in March/April 2027Orders placed 16 April - 15 May 2027
You can expect your order within 10 business days
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