Philadelphus White Rock - Mock Orange
Philadelphus White Rock - Mock Orange
Philadelphus White Rock ® Pekphil
Mock Orange
well-grown plant
Francoise R., 30/07/2018
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Description
The Philadelphus 'White Rock' (Pekphil) is a compact bush that seduces its white and fragrant fountain-like appearance in early summer. Its long trailing branches create cascades of simple or even double white flowers that engulf the vegetation in May-June. Very floriferous from a young age, spectacular and not bulky, this variety is well suited to small gardens and container gardening to adorn the terrace or balcony.
The genus Philadelphus belongs to the hydrangea family. The White Rock variety (Pekphil) is a relatively recent horticultural hybrid of Philadelphus (x) virginalis, among others. It is a compact bush with a low, spreading, almost weeping habit, often wider than tall, and of relatively rapid growth. At maturity, around 10 years old, it reaches an average height of 1.25 m (4ft), with a spread of 1.75 m (6ft). It flowers in June, from a young age, more or less early depending on the climate, for about 3 weeks, in a pleasant floral fragrance. Each flower, single or even semi-double, 6 to 7 cm (2 to 3in) wide, is composed of white petals surrounding quite prominent stamens. They are arranged in clusters of 3 to 5 on the distinctly drooping one-year-old branches, creating a somewhat disordered but charming fountain. The deciduous foliage appears during spring; its colour is medium to light green, depending on the nature of the soil. The leaves are entire, ovate in shape with pointed tips, slightly toothed along the edges, and traversed by almost parallel veins. They turn yellow in autumn before falling.
Philadelphus, sometimes called mock orange, are robust and perfectly hardy bushes that thrive in all types of soil. They withstand everything, even summer droughts, but prefer freshness at their base. 'White Rock', with its beautiful dome-shaped habit and spectacular flowering, is well suited for container gardening to adorn the terrace or balcony. It is also used in the composition of romantic flower beds and small hedges, free or not, but you can also choose to plant it as a standalone in a small garden. For example, associate it with shrubby lavateras, caryopteris, abelias, deutzias, bush roses, or dwarf lilacs.
Philadelphus White Rock - Mock Orange in pictures
Plant habit
Flowering
Foliage
Planting and care
The Philadelphus 'White Rock' is straightforward to grow, requiring very little maintenance and accommodating; it is well suited to all gardens and ideal for beginner gardeners. Ordinary, poor, even limestone soil, not too dry or too wet, suits it. However, it will prefer fresh, well-drained and humus-rich soil. Very hardy, it can withstand temperatures as low as -20°C (1°F). Planting should be done in early spring or autumn, preferably in full sun or partial shade. Excessive heat exposure should be avoided in dry and hot climates. Flowering on the previous year's shoots, the Philadelphus should be pruned after flowering, in July-August, by shortening the flowering branches by one-third of their length. More severe pruning can be done every 2 to 3 years to keep it compact and floriferous. Do not hesitate to cut the old wood and long branches down to the base of the plant to encourage branching from the base. A resistant bush, it may, however, be prone to powdery mildew and black aphids.
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.
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