Buddleja macrostachya - Butterfly Bush
Buddleja macrostachya - Butterfly Bush
Buddleja macrostachya
Large spiked Butterfly Bush
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Available in 2 sizes
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Available in 2 sizes
Available in 2 sizes
Available in 1 sizes
Available in 3 sizes
Available in 2 sizes
Available in 2 sizes
This plant carries a 24 months recovery warranty
More information
We guarantee the quality of our plants for a full growing cycle, and will replace at our expense any plant that fails to recover under normal climatic and planting conditions.
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Description
Buddleja macrostachya is a rare bush in cultivation, yet very ornamental throughout the year and easy to grow, although it requires a mild climate to thrive. It is a deciduous bush with a slightly weeping habit, bearing long pointed leaves which are woolly on the underside. It produces long trailing panicles, filled with small pale pink or yellow flowers, punctuated with an orange throat. The flowers emit a sweet honey scent, which is highly attractive to bees. The flowers appear in spring or summer and sometimes last until the first frost. In winter, its branches are revealed, covered in interesting ragged grey and brown bark. Definitely worth discovering!
Buddleja macrostachya is a large-growing botanical species in the Scrophulariaceae (buddleja) family. It is native to China, Bangladesh, India, Thailand, and Vietnam. In the wild, it grows between 900 m and 3200 m (2953 ft and 10499 ft) altitude, in well-drained, preferably limestone soils. It enjoys cool to moist ground, not far from watercourses which it tends to colonise the banks of. In our climates, it will reach a size of about 3 m (9.9 ft) in all directions, with rapid growth. The bush is composed of quadrangular winged stems, with brown bark that peels with age. The foliage, deciduous in cool climates, consists of almost sessile leaves, with a narrow, pointed, crenate edge, measuring up to 25 cm to 30 cm (9.8 in to 11.8 in) long and 5 cm (2 in) wide. They are green and shiny on the upper side, lighter and hairy on the underside. Flowering usually takes place in late spring or summer and is only stopped by cold weather. Thin panicles up to 20 cm (7.9 in) long and 4 cm (1.6 in) in diameter appear at the ends of the current year's branches. They are composed of small four-petaled bi-coloured flowers, about 3 mm to 4 mm (0.1 in to 0.2 in) wide. The flowering is followed by the formation of capsules 1 cm (0.4 in) long and 2 mm (0.1 in) wide, containing numerous easily germinating seeds. In deep soil and once well established, this buddleja tolerates summer drought quite well.
Whether planted as a solitary plant or in a group, in a hedge or at the back of a perennial bed, Buddleja macrostachya is a very colourful bush that will enhance the garden or even a terrace, as it is also suited to pot cultivation. Its long flowering accompanies that of all other flowering bushes, from spring to autumn. You can also plant it in a tall, informal hedge at the edge of the garden, with other buddlejas, as there is a wide choice in this genus, starting with the winter-flowering Buddleja officinalis, the spring-flowering B. 'Lochinch', the hybrids of B. x weyeriana ('Sungold', 'Honeycomb', 'Flower Power', 'Moonlight') or the dwarf varieties like 'Nanho Blue', and 'White Chip'. Gardeners in cold areas can welcome Buddleja macrostachya on a terrace during warm weather and see it flower in the greenhouse as early as February.
Buddleja macrostachya - Butterfly Bush in pictures
Plant habit
Flowering
Foliage
Planting and care
Buddleja macrostachya prefers fertile soils that remain fairly moist in summer, but it performs well in drier soil in summer and quite poor soil once established. However, its growth will be slower and slightly less luxuriant. Summer heat is not a problem; however it fears cold and waterlogged soil in winter, which can harm its hardiness. In mild climates, plant in autumn. In cooler areas, plant in spring. Choose any well-drained, preferably limestone, light and fertile soil. Plant in full sun and in a sheltered position in colder climates. Prune in late winter or autumn, as the bush flowers on the current year's wood. It can be subject to attacks from red spider mite in dry conditions.
Cultivation in pots:
In areas colder than -10° C (14° F), grow in a pot: choose a large container that will sit outside from May to September, in full sun. Water regularly to promote flower production. Prune after flowering to reduce the size of the bush so that it can be overwintered in a cool, very bright, unheated but frost-free place.
Reduce watering, and allow the substrate to dry between waterings. Fertilise in spring with a slow-release fertiliser for flowering shrubs.
Planting period
Intended location
Care
Planting & care advice
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Hardiness is the lowest winter temperature a plant can endure without suffering serious damage or even dying. However, hardiness is affected by location (a sheltered area, such as a patio), protection (winter cover) and soil type (hardiness is improved by well-drained soil).
In temperate climates, pruning of spring-flowering shrubs (forsythia, spireas, etc.) should be done just after flowering.
Pruning of summer-flowering shrubs (Indian Lilac, Perovskia, etc.) can be done in winter or spring.
In cold regions as well as with frost-sensitive plants, avoid pruning too early when severe frosts may still occur.
The harvesting period indicated on our website applies to countries and regions in USDA zone 8 (France, England, Ireland, the Netherlands).
In colder areas (Scandinavia, Poland, Austria...) fruit and vegetable harvests are likely to be delayed by 3-4 weeks.
In warmer areas (Italy, Spain, Greece, etc.), harvesting will probably take place earlier, depending on weather conditions.
The sowing periods indicated on our website apply to countries and regions within USDA Zone 8 (France, UK, Ireland, Netherlands).
In colder areas (Scandinavia, Poland, Austria...), delay any outdoor sowing by 3-4 weeks, or sow under glass.
In warmer climes (Italy, Spain, Greece, etc.), bring outdoor sowing forward by a few weeks.
The planting period indicated on our website applies to regions in USDA Zone 9a (East Coast and Midlands: Dublin, Wexford, Waterford, Kilkenny, Portlaoise). It will vary depending on where you live:
- On the west coast and in the north-west (Galway, Limerick, Sligo, Donegal, Westport), delay planting by 1 to 2 weeks in spring and bring it forward by 1 to 2 weeks in autumn compared to the dates given, preferably choosing periods without strong winds.
- In the inland hills and plateaus (Wicklow Mountains, Macgillycuddy’s Reeks, Connemara, Killarney), it is best to plant in spring (April–May) or autumn (September–October), avoiding periods of waterlogged soil in winter and strong winds, which pose the main risk to newly planted trees in these areas.
The flowering period indicated on our website applies to regions in USDA Zone 9a, such as the East Coast and Midlands, including Dublin, Wexford, Waterford, Kilkenny and Portlaoise.
This will vary depending on where you live:
- On the west coast and in the northwest (Galway, Limerick, Sligo, Donegal and Westport), it will be delayed by one to two weeks compared to the given dates, due to stronger Atlantic winds and less spring sunshine.
- In the inland hills and plateaus (the Wicklow Mountains, the Macgillycuddy's Reeks, Connemara and Killarney), flowering will be delayed by two to three weeks. Flowering mainly occurs between May and July, with the limiting factors being less frost and more of the excessive humidity, strong winds and lack of sunshine that are characteristic of these areas.
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