Hebe Joan Mac
Hebe Joan Mac
Hebe Joan Mac
Hebe Joan Mac®
Shrubby Veronica, Speedwell shrub
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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
Hebe 'Joan Mac'® is a superb variety of hybrid Speedwell shrub, with dark and shiny foliage all year round. The long evergreen leaves are dark green to purple. In June, clusters of pink-purple flowers emerge among the leaves, offering a striking and beautiful contrast. This relatively hardy small bush is easy to grow in regions where winters are not too harsh. This variety naturally forms a beautiful, very compact and dense evergreen cushion, ornamental all year round. The plant is disease-resistant, undemanding about soil type, and drought resistant once established in the garden. It is also an excellent plant for the terrace.
Hebe 'Joan Mac' is a recent hybrid cultivar, selected at the Tully nursery in Ireland. It belongs to the Plantaginaceae family and is similar to perennial veronicas. It forms a small, regular bush with a particularly compact habit, reaching about 40 cm (16 in) in all directions. Its reddish stems, which lignify with age, bear thin, long, thick, and leathery elliptical leaves. They have a very dark and shiny green colour, with purple tinges. The young shoots are purple. Flowering mainly occurs in May-June, sometimes with a second flush in autumn. It takes the form of simple lateral inflorescences resembling long thin spikes of 5 cm (2 in). They are composed of a multitude of small flowers: the floral buds, slightly tinged with white, reveal the intensity of their bright pink-purple colour when they open. Pruning after flowering is recommended to maintain a compact habit and a tidy appearance for this shrubby speedwell.
With relatively slow growth, and being relatively hardy (down to -10°C (14 °F) for 'Joan Mac'), Hebes are generally grouped with perennial plants because their usage is closer to these than to shrubs. The 'Joan Mac' variety, on the other hand, naturally has a compact and dense growth habit that is well suited for ornamenting terraces and balconies, mixed with e.g. ericaceous plants or creeping rosemary. In favourable climates it can create neat and intensely coloured borders throughout the summer, and it is highly decorative in winter. In cold regions, Hebes can be grown in large pots on the terrace, to be stored in a bright and unheated room during winter.
Hebe Joan Mac in pictures
Plant habit
Flowering
Foliage
Botanical data
Hebe
Joan Mac®
Scrophulariaceae
Shrubby Veronica, Speedwell shrub
Cultivar or hybrid
Planting and care
The 'Joan Mac' Hebe is preferably planted in spring in a cool climate, or in October in warmer regions. It prefers a sunny site and well-drained, even sandy, soil that is sufficiently deep and well-worked. This plant tolerates salt spray and dry soils in summer once it is well established. In gardens with heavy soils and a wet climate, Hebes should be reserved for rockeries or sloping banks. It enjoys a rich soil that is always well-drained. In the colder regions of Northern Europe it is necessary to protect these shrubs during winter or cultivate them in pots, bringing them indoors during periods of freezing weather. As they grow, pruning with shears can be useful to maintain a dense and compact habit and a neat appearance.
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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