Baptisia 'Dusty Purple'
"False indigo"
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
Baptisia 'Dusty Purple', commonly known as false indigo, is a showy addition to UK gardens, offering long, upright stems adorned with dusty purple pea-like flowers. Each spike bursts into bloom in late spring, creating a soft, smoky haze of colour that dances above the blue-green foliage. Baptisia 'Dusty Purple' isn’t just about flowers—it also provides architectural interest, with its stately, erect habit giving height and form to borders or cottage-style plantings. As the season progresses, the blossoms give way to decorative seed pods, adding texture and subtle autumnal interest that carries the plant’s charm beyond summer.
This hardy perennial thrives in sunny or partially shaded spots with well-drained soil, making Baptisia australis 'Dusty Purple' relatively low-maintenance once established. Its dusty purple flowers pair beautifully with soft whites, yellows, and silvery foliage, and it works equally well in informal borders, mixed perennial beds, or as a striking accent in larger containers. The pea-like flowers are a magnet for pollinators, so Baptisia 'Dusty Purple' isn’t just a treat for the eyes—it supports bees and butterflies too. With its combination of architectural grace, long-lasting blooms, and subtle smoky hues, Baptisia 'Dusty Purple' ensures UK gardens enjoy colour, structure, and a touch of perennial sophistication from late spring through to early summer.
Baptisia is called false indigo because its blue dye once mimicked true indigo—tricking traders and tinting fabrics on a budget.
Key features
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Good for cutting
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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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Thrives well in full sun
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In peat-free compost
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RHS Award (AGM)
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Fully hardy
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Rodent resistant
Specs & details
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Botanical name
Baptisia australis 'Dusty Purple'
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Flower colour
Dusty purple
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Plant size
1
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Established height
1-1.2m
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Established spread
50cm-1m
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Plant spacing
4 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
2-3 years
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Sunlight
Full sun
Partial shade -
Position
Sheltered
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Suitable for
Borders
Cottage gardens
Cut flower Gardens
Woodland gardens
Wildlife gardens -
Soil acidity
Any
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Soil moisture
Damp
Free draining -
Soil type
Clay
Loam
Multipurpose compost -
RHS Award (AGM)
No
Yes -
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
Yes
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Deer resistant
Yes
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Toxicity
Skin/eyes irritant
Toxic if eaten -
Squirrel resistant
Yes
Plant calendar
| Jan | Feb | Mar | Apr | May | June | July | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
- Planting
- Flowering
Useful information
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Soak the Baptisia 'Dusty Purple' roots in water for 3-6 hours prior to planting
Plant your "False indigo" 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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