Asclepias tuberosa
"Butterfly weed"
Orders placed before 1 March 2025
You can expect your order in February/March 2025
Orders placed 1 March - 15 April 2025
You can expect your order in March/April 2025
Orders placed 16 April - 15 May 2025
You can expect your order within 10 business days
UK orders over £50
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UK orders under £50
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Northern Ireland orders under £50
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Description
Don't be fooled by the name weed creeping into its common moniker; this plant is no garden gatecrasher. Indeed, Asclepias tuberosa prides itself on being every gardener's dream date: astonishingly attractive, remarkably resilient, and doesn't mind if you forget to call (or water) regularly.
Butterfly weed turns any patch into a zoological tapestry, teeming with nature's busiest pollinators—who knew conservation could be so effortlessly stylish? Whether you're aiming to spark up a monarch butterfly romance or just turn your garden into the it-spot for the six-legged set, Asclepias tuberosa hits the sweet spot, outshining its floral companions like a sunbeam in sequins.
Bring a warm, zingy summer glow to the garden with the frothy orange blooms of Asclepias tuberosa. Commonly named butterfly weed, the flat-topped clusters of nectar-rich flowers are frequented by pollinators of all kinds. The lava tone makes this a fittingly fiery addition to any hot-themed planting scheme, or they can create an eye-popping contrast with neighbouring plants with purple or blue blooms. You’ll enjoy an impressively long and vibrant flowering period which lasts from midsummer to autumn, and then further interest as flowering is followed by curious pointed seedpods which burst with fluffy seeds!
The stems of Asclepias tuberosa are fairly tall, reaching 75-90cm, and they also have a long vase life. Both features make this a favourite with florists, but wear gloves when handling as this plant can be irritant. These resilient perennials can tolerate winter temperatures down to -10°C and will grow back each year with minimal fuss, each time they will grow from a more established clump. Butterfly weed is well suited for growing in sunny borders with free draining soil and also patio containers.
The seeds of Asclepias tuberosa are equipped with silky hairs that allow them to be carried away by the wind. This mode of dispersal helps the plant to colonize new areas.
Key features
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Perfect for pots
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Comes back every year
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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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Low maintenance
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RHS Award (AGM)
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Fully hardy
Specs & details
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Botanical name
Asclepias tuberosa
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Flower colour
Orange, yellow
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Plant size
1
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Established height
50cm-1m
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Established spread
10-50cm
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Plant spacing
10 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
Pots
Water gardens
Cottage gardens
Low maintenance gardens -
Soil acidity
Any
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Soil moisture
Damp
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Soil type
Clay
Loam
Multipurpose compost
Loam-based compost -
Growing skill
Easy to grow
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Scented
No
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Pollinator-friendly
Yes
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Mouse resistant
No
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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 your Asclepias tuberosa roots in water for 3-6 hours prior to planting.
Plant your "Butterfly weed" bare roots into temporary pots with a multipurpose compost in spring 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.
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 before 1 March 2025
You can expect your order in Feb/March 2025Orders placed 1 March - 15 April 2025
You can expect your order in April 2025Orders placed 16 April - 15 May 2025
You can expect your order within 10 business days
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