Buddleja davidii Psychedelic Sky - Butterfly Bush
Buddleja davidii Psychedelic Sky - Butterfly Bush
Buddleja davidii Psychedelic Sky - Butterfly Bush
Buddleja davidii Psychedelic Sky® (PIIBD-III)
Butterfly Bush, Summer Lilac
Arrived in excellent condition with already many shoots that have been covered in beautiful fragrant mauve flowers. Very happy with this purchase.
Eric, 06/07/2025
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Description
Buddleja davidii 'Psychedelic Sky' is an attractive selection with large panicles measuring 15 to 25 cm (6 to 9 in) in length with intensely violet flowers. The flowers are fragrant and attract bees and butterflies. This flowering period extends from June to September if care is taken to remove faded flowers to promote reblooming. It is a hardy bush with an erect ball-shaped habit, particularly neat and with fairly limited growth for the species. It is an easy plant to grow that thrives in full sun and all types of well-drained soil. The butterfly bush also tolerates temporary drought, sea spray, and limestone. The abundant summer flowering of this cultivar deserves a place at the back of your flower beds, isolated in a small garden, or as a free hedge around vegetable and fruit crops to attract pollinators in large numbers.
Buddleja davidii 'Psychedelic Sky' is a selection by Michael Dirr of Plant Introductions Inc., distinguished by its long intense violet panicles and much tidier habit. It is a medium-sized variety with an erect ball-shaped habit and upright branches. Belonging to the Scrophulariaceae (buddlejaceae) family, this bush is derived from Buddleja davidii, also known as Father David's buddleja or Changing Buddleja, a robust Chinese species.
'Psychedelic Sky' will reach its maximum adult size of 1.8 m (6 ft) tall and 1.5 m (5 ft) wide in 3 or 4 years. It produces numerous erect, well-branched branches with grey-green leaves with a whitish underside. The leaves, 12 to 20 cm (5 to 8 in) long, are pointed and lanceolate in shape. This deciduous foliage is absent in winter, except in mild climates. This variety blooms abundantly from June to September. The flower panicles are about 20 cm (8 in) long carried by straight and vigorous branches. These flowers are intensely violet with a small orange eye and release a sweet fragrance reminiscent of honey, highly sought after by pollinating insects. The flowers contain substances collected by pollinating insects that will transform them into honey. This hardy bush is resistant to urban pollution and does not suffer from occasional drought when planted in deep soil. When grown in a container, it will require frequent watering and regular fertiliser application.
Whether planted individually or in groups, at the corner of the house, on a dry slope, or in a flower border, Buddleja davidii 'Psychedelic Sky' will bring the garden to life throughout the summer and into early autumn. Its long and intense violet summer flowering complements other shrubs and perennials in a mass planting with dark pink and white flowers (phlox, echinaceas), and with grey and silver foliage of artemisias. It also pairs well with yellow blooms and golden foliage as seen in liatris, St. John's wort, and choisya. This moderately growing variety is also suitable for container gardening in smaller gardens but is even better suited as a free hedge with weigelas or to add a more relaxed structure to a strict and colourless corner of the garden. It adapts well to coastal areas and thrives in any good, well-drained garden soil. Its pleasantly fragrant flowers are also beautiful in bouquets.
Buddleja davidii Psychedelic Sky - Butterfly Bush in pictures
Plant habit
Flowering
Foliage
Botanical data
Buddleja
davidii
Psychedelic Sky® (PIIBD-III)
Buddlejaceae
Butterfly Bush, Summer Lilac
Cultivar or hybrid
Planting and care
Buddleja davidii 'Psychedelic Sky' is easy to grow, as it is a low-maintenance plant. It thrives in sunny locations, but also flowers in partial shade. Plant it in spring or early autumn, in ordinary, well-worked and well-drained soil. It can tolerate limestone and poor soil. Once established, the plant will tolerate periods of moderate drought. It has no significant enemies. However, beware of caterpillars, weevils, and red spider mites that can infest it. Pruning vigorously after flowering and/or in early spring maintains a compact and branching habit and encourages abundant flowering.
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).
The flowering period indicated on our website applies to countries and regions located in USDA zone 8 (France, the United Kingdom, Ireland, the Netherlands, etc.)
It will vary according to where you live:- In zones 9 to 10 (Italy, Spain, Greece, etc.), flowering will occur about 2 to 4 weeks earlier.
- In zones 6 to 7 (Germany, Poland, Slovenia, and lower mountainous regions), flowering will be delayed by 2 to 3 weeks.
- In zone 5 (Central Europe, Scandinavia), blooming will be delayed by 3 to 5 weeks.
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 planting period indicated on our website applies to countries and regions located in USDA zone 8 (France, United Kingdom, Ireland, Netherlands).
It will vary according to where you live:
- In Mediterranean zones (Marseille, Madrid, Milan, etc.), autumn and winter are the best planting periods.
- In continental zones (Strasbourg, Munich, Vienna, etc.), delay planting by 2 to 3 weeks in spring and bring it forward by 2 to 4 weeks in autumn.
- In mountainous regions (the Alps, Pyrenees, Carpathians, etc.), it is best to plant in late spring (May-June) or late summer (August-September).
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.