Hydrangea quercifolia Back Porch
Hydrangea quercifolia Back Porch
Hydrangea quercifolia Back Porch
Oakleaf Hydrangea, Oak-leaved Hydrangea
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Description
Hydrangea quercifolia 'Back Porch' is a variety of Oakleaf Hydrangea with strong vigour, known for its particularly generous flowering and beautiful autumn colours. In summer, it is adorned with long, numerous white panicles that turn a lovely pink shade as they fade. The autumn foliage of this bush offers a remarkable symphony of red, purple, and violet tones for the late season. It will find its place in a large shrub bed or in a free hedge. Like all 'Oakleaf' hydrangeas, this hydrangea is not demanding in terms of soil and climate. A must-see!
Hydrangea quercifolia 'Back Porch' belongs to the hydrangea family, like all hydrangeas. The typical species, with single white flowers, is mainly native to the southwest United States, particularly the Mississippi Valley. This plant can be found growing on cliffs, in damp woods, ravines, and on riverbanks, from Georgia to Louisiana, passing through Florida. In the garden, it is one of the easiest hydrangeas to grow: it is hardy below -20°C (-4°F), tolerates some limestone in the soil, light sunlight, and can adapt to heat and occasionally dry soil in summer if it is deep.
This 'Back Porch' selection is a large deciduous bush, slightly suckering, reaching about 1.80m (6ft) in all directions. It is characterized by large lobed leaves, which can resemble oak leaves. One of the major advantages of this variety is its more decorative and abundant flowering compared to the typical species. It begins in June-July, depending on the climate, developing on old wood. It consists of long, slightly trailing pyramidal inflorescences, reaching about twenty centimetres. Each one is composed of tiny fertile flowers and four-petaled sterile flowers. In this variety, the sterile florets are small but very numerous. They turn pink in late summer. The young spring and summer leaves are covered with a whitish fuzz in spring. They unfold into large leaves 12-14cm (5-6in) long, divided into 5 deep lobes with roughly toothed edges, of medium green colour. In late summer, they take on fantastic dark red to purple-violet shades, before falling more or less late in autumn. The bark of this variety peels off over time, revealing new and shiny cinnamon-coloured wood, which is decorative in winter.
Hydrangea quercifolia 'Back Porch' benefits from being planted in a slightly sunny location that enhances its autumn colours. Light filtered through the canopy of trees suits it very well, especially in hot climates. It can be used in the back of a bed, as a standalone plant, in an informal hedge, or in a shrub bed. It can be associated with other hydrangeas, as well as with Nandina, Mexican Orange Blossom, Berberis thunbergii... In full sun, it pairs beautifully with amaranths (Amaranthus 'Velvet Curtains') and hastate verbenas (Verbena hastata 'Rosea').
Plant habit
Flowering
Foliage
Botanical data
Hydrangea
quercifolia
Back Porch
Hydrangeaceae
Oakleaf Hydrangea, Oak-leaved Hydrangea
Cultivar or hybrid
Planting and care
This Hydrangea quercifolia 'Back Porch' requires a sunny exposure to enhance autumn colours, but it dreads excessively hot exposures: morning sun or the shade of a large tree during the hottest hours are preferable, especially in our very sunny and hot regions. It prefers a humus-bearing, neutral to acidic soil, but tolerates limestone presence in the soil better than other hydrangeas. Plant it in a hole filled with a mix of potting soil and loam. During planting, place it in deeply worked soil. A good base fertilizer (horn or dehydrated blood) will promote the establishment of your plant and nourish it without the risk of burning. Mulch the base in summer to limit watering.
Once well established, this Hydrangea does not require any watering in summer, except in our southern regions where it will appreciate weekly watering, or every two weeks depending on the weather. At the end of summer, we advise you not to cut the dry inflorescences, as they will protect the terminal shoots of the branches in winter. Cut all the dry flowers at the end of February or at the first sunny days. Its spring growth is quite late.
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).
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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.