Daphne transatlantica Summer Ice
Daphne transatlantica Summer Ice
Daphne transatlantica Summer Ice
Daphne transatlantica Summer Ice
Daphne x transatlantica Summer Ice
Fragrant Daphne
Bought last year, it flowered last year. Growth is slow, but it's in flower this year – satisfied.
sylvie, 11/03/2026
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Description
The Daphne x transatlantica 'Summer Ice' is a recent American cultivar selected for its compact growth, decorative variegated foliage, easy cultivation, and long-lasting intensely fragrant jasmine-like flowering. This shrub forms a dense small bush with dark green leaves margined with cream yellow that turn ivory white under the summer sun, effectively brightening up darker corners of the garden. Starting from April, numerous clusters of flowers appear and are punctuated with pink buds that open into small white flowers. This generous flowering regularly continues until October! Use this daphne to illuminate your shady areas or to fill your terrace with fragrance.
The Daphne (x) transatlantica is a horticultural hybrid resulting from the cross-breeding between Daphne caucasica, a botanical species with white flowers and deciduous foliage native to the Caucasus, and D. collina, an evergreen shrub with pink flowers, native to rocky slopes and scrub vegetation in the Naples region of Italy. These shrubs belong to the Thymelaeaceae family and are resistant to cold mountainous conditions, growing in acidic, well-draining but moist soil. It is a slow-growing shrub that does not require pruning.
The 'Summer Ice' cultivar was introduced in 2019 by American breeder Robert Ticknor. It slowly forms a spreading shrub with a compact, bushy habit, reaching 1.2m (3 ft 11 in) in all directions. Exceptionally floriferous, this daphne is adorned with pink buds that open into delicate tubular flowers, white with yellow-orange anthers, measuring 2cm (0.8 in) wide, highly fragrant, arranged in small round clusters at the end of each stem. Its flowering is abundant, starting timidly from May and intensifying, covering the shrub in flowers until July. The flowering slows down in August, then resumes more vigorously in September and lasts until October. The lanceolate leaves, with dark green colour bordered with cream-yellow turning ivory-white, have a leathery lamina and are clustered at the end of branches before spreading along the length of the year's growth. They are evergreen in mild and temperate climates during winter, semi-evergreen in cold climates.
The Daphne x transatlantica 'Summer Ice' is a beautiful shrub for ornamental planting in an ericaceous bed in climates that do not dry out. It will look stunning in a container on a terrace, planted in good horticultural soil and watered with non-limestone water. To enjoy its fragrance, it is advisable to place it near the house or a pathway. For example, you can pair it with Japanese azaleas, acid-loving heathers (Calluna, Daboetia, Erica). Being mountainous in origin, it will also appreciate a cool alpine rockery, always in acidic soil, with plants like Lithodora fruticosa, Roscoea and Liriope muscari.
Note: Daphnes can be high-maintenance and difficult to cultivate. They are best suited for experienced gardeners.
Daphne transatlantica Summer Ice in pictures
Plant habit
Flowering
Foliage
Safety measures
Botanical data
Daphne
x transatlantica
Summer Ice
Thymelaceae
Fragrant Daphne
Cultivar or hybrid
ingestion
Cette plante est toxique si elle est ingérée volontairement ou involontairement.
Ne la plantez pas là où de jeunes enfants peuvent évoluer, et lavez-vous les mains après l'avoir manipulée.
Pensez à conserver l'étiquette de la plante, à la photographier ou à noter son nom, afin de faciliter le travail des professionnels de santé.
Davantage d'informations sur https://plantes-risque.info
Planting and care
The Daphne x transatlantica 'Summer Ice' should be planted in spring or autumn in a humus-rich, well-drained soil, with an acidic to neutral pH and free from limestone. The soil should remain moist, even during the summer. It prefers a sunny to semi-shaded exposure. Pruning is unnecessary, except for dead branches. Do not let the soil dry out, apply an organic mulch or plant heathers to protect the base. It can also be grown in a pot: plant your Daphne in a good horticultural soil, making sure to place a layer of clay pellets at the bottom of the perforated pot to facilitate drainage. Water regularly with non-limestone water and provide a fertiliser for acid-loving plants. Like Daphne odora, it can be affected by fungus; treat preventively with a fungicide in spring, before 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).
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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