Heucherella Cracked Ice
Heucherella Cracked Ice
Heucherella Cracked Ice
Heucherella Cracked Ice
Heucherella Cracked Ice
(x) Heucherella Cracked Ice
Foamy Bells
This heuchera is located in my parents' garden, a cottage garden with flowers in all seasons!
Pomme, 14/04/2023
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Description
Heucherella 'Cracked Ice' is a hybrid between Heuchera and Tiarella, combining the best of both parents in a highly successful variety. This recent selection forms a low, evergreen cushion of deeply lobed leaves, with a frosty blue-green colour, veined with dark purple. In autumn, it takes on a delightful silver-pink tone, which is truly fascinating. Its delicate and abundant spring flowering consists of panicles of white flowers carried on slender stems. This vigorous, compact, healthy, and easy-to-grow variety is an excellent perennial for shaded and cool areas of the garden or in undergrowth.
Heucherella 'Cracked Ice' belongs, like its ancestors Heuchera and Tiarella, to the Saxifragaceae family. It has inherited the qualities of these two plants: the spectacular foliage of the Heuchera and the abundant flowering and superior robustness of the Tiarella. 'Cracked Ice' was obtained by Terra Nova, a North American nursery specialising in the creation of new cultivars of Heuchera, Heucherella, and Tiarella, with increasingly surprising colours and remarkable vigour.
It is a perennial plant that forms a low and compact clump. At maturity, it reaches about 20 cm (8 in) in height and 40 cm (16 in) in spread. The leaves measure 4 to 10 cm (2 to 4 in) in diameter. The first leaves, which emerge in spring, are narrower. They give way to large, rather round and deeply palmate leaves that resemble those of a maple, with a silvery green-blue colour and strongly marked veins coloured in dark purple. With the arrival of cold weather, 'Cracked Ice' takes on a soft and luminous silver-pink colour. The very long-lasting flowers appear in April-May and last until the beginning of summer, grouped in condensed spikes carried on thin and hairy stems about 50 cm (20 in) tall. These white flowers have a foam-like appearance.
Heucherella 'Cracked Ice' appreciates wooded environments with a humid atmosphere. It will naturally find its place in moist woodland alongside ferns, Impatiens balfouri, Solomon's seals, and astilbes. It is also a good plant for perennial borders or in a rockery, always in shade. It can also be used as a waterside plant. It will also thrive in containers or sheltered planters away from direct sunlight. In this case, it should be planted in a well-drained potting mix without excess fertiliser, with watering carefully monitored in summer and reduced in winter. Pots will need protection against cold winter winds.
Heucherella Cracked Ice in pictures
Flowering
Foliage
Plant habit
Botanical data
(x) Heucherella
Cracked Ice
Saxifragaceae
Foamy Bells
Cultivar or hybrid
Planting and care
Easy to maintain, Heucherella 'Cracked Ice' thrives in all types of moist to wet, well-drained, neutral to acidic soils. It can be planted in partial shade or dense shade (although the foliage colour may be less vibrant). It is essential to avoid full sun. You should plant it in loose soil that retains moisture, and consider using mulch. It does not tolerate very hot conditions and prefers high humidity. Once established, this perennial seems to tolerate dry shade under trees and bushes. It requires minimal maintenance and pruning is not necessary except for damaged foliage or rejuvenation.
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 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.
The harvest period stated on our website applies to regions in USDA zones 8b to 9a (East, South-East and southern coast: Eastern Leinster, County Wexford and County Waterford, Cork region: Dublin, Wexford, Waterford, Kilkenny, Cork). It will vary depending on where you live:
- In the Midlands and the inland plains: the Middle Shannon Valley, Westmeath, Offaly, Longford, Cavan and Monaghan (Athlone, Mullingar, Tullamore, Longford, Cavan, Monaghan), in USDA zones 8a to 8b, the harvest will be delayed by 1 to 2 weeks compared with the dates given. Far from the moderating influence of the sea, these plains experience late frosts right up until the end of spring. The heavy, peaty soils warm slowly here, and damp patches form pockets of frost. Wait until the soil has dried out and warmed up before planting, and protect young plants with a fleece on clear nights.
- In the Atlantic West and North-West: Kerry, Clare, Galway, Connemara, Mayo, Sligo and Donegal (Killarney, Ennis, Galway, Westport, Sligo, Letterkenny), in USDA zones 8b to 10a, the harvest will be delayed by 1 to 3 weeks compared with the dates given. Summers here are cloudier, rainier and windier than in the east, which slows down ripening and encourages late blight and other fungal diseases. Kerry and Clare are at the lower end of the range, whilst Mayo and Donegal, which are cooler and more exposed, are at the upper end. However, the mild coastal winters mean that leafy vegetables and root vegetables can be harvested at dates close to those indicated, or even earlier: shelter crops from the wind with hedges and grow heat-loving plants in greenhouses or polytunnels.
- In the highlands, above 200 m: the Wicklow Mountains, Macgillycuddy’s Reeks, the Galtee and Comeragh ranges, the Twelve Bens in Connemara and the Donegal highlands, in USDA zones 7b to 8a, the harvest will be delayed by 2 to 4 weeks compared with the dates given, depending on the altitude, taking care to beat the first early frosts, which may occur as early as the start of autumn. Wind, constant damp and late frosts lasting into early summer significantly shorten the growing season. Opt for sheltered, south-facing slopes, early-maturing varieties and growing under cover.
Depending on your garden’s aspect, these variations can range from one to two weeks. A frost-prone valley floor delays the harvest, whilst a south-facing wall brings it forward.
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