Physostegia virginiana Summer Snow - Obedient Plant
Physostegia virginiana Summer Snow - Obedient Plant
Physostegia virginiana Summer Snow - Obedient Plant
Physostegia virginiana Summer Snow - Obedient Plant
Physostegia virginiana Summer Snow - Obedient Plant
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Elise A.
Physostegia virginiana Summer Snow - Obedient Plant
Elise A. • 51 FR
Elise A.
Physostegia virginiana Summer Snow - Obedient Plant
Elise A. • 51 FR
Physostegia virginiana Summer Snow - Obedient Plant
Physostegia virginiana Summer Snow
Obedient plant, Virginian False Dragonhead, Accommodation Flower, American Heather, Lady of the Lake, Lion's Heart, Mexican Heath
To be seen during the flowering next summer.
Francis W., 06/12/2022
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Description
Physostegia virginiana 'Summer Snow' in bloom creates a beautiful display in the garden. This robust and hardy perennial, with a wide clumping habit, produces narrow, slightly stiff, snow-white spikes covered with mischievous flowers in summer. When the flowers are touched, they permanently change their orientation around the axis of the inflorescence. These plants require a humus-rich soil, always moist and in full sun, to flourish.
Physostegia virginiana belongs to the scrophulariaceae family and is native to the eastern and central parts of North America. 'Summer Snow' is a cultivar with white flowers. It is a rhizomatous herbaceous plant, forming an erect clump of unbranched stems, reaching about 60 cm (24in) in all directions, with rapid growth. The spikes, measuring about 10-12cm (4-5in) in length, are covered with small white tubular flowers and develop in the heart of summer at the top of the stems. The flowers are attached to the axis by a small organ that acts as a joint, allowing them to orient themselves in any direction and maintain their position. They are arranged in four ranks. The deciduous foliage consists of lanceolate, narrow leaves, 10 cm (4in) long, with toothed edges, and a shiny dark green colour. The plant has a semi-suckering stump, and the large white roots, resembling those of bindweed, allow it to slowly spread.
Easy to grow, Physostegia virginiana 'Summer Snow' appreciates moist soil and full sun. It is often used as a border plant near a water feature or for making bouquets, as its flowers are very attractive and long-lasting in a floral arrangement. It will also find its place in perennial and shrub beds, alongside summer asters (Aster novae angliae), the soft inflorescences of 'Phantom' hydrangea, or pastel-coloured landscape roses.
Physostegia virginiana Summer Snow - Obedient Plant in pictures
Flowering
Foliage
Plant habit
Botanical data
Physostegia
virginiana
Summer Snow
Lamiaceae
Obedient plant, Virginian False Dragonhead, Accommodation Flower, American Heather, Lady of the Lake, Lion's Heart, Mexican Heath
Cultivar or hybrid
Planting and care
Physostegia virginiana 'Summer Snow' can be planted in spring or autumn, five feet per square metre, in garden soil that is always slightly damp to very damp, preferably non-calcareous, sheltered from strong winds and in the sun. The soil must not dry out in summer. Despite its vigorous growth, this plant does not like competition from other roots. Mulch the soil in June with lawn clippings. Divide the clumps as late as possible, about every five years. This plant is remarkable in sandy and loamy soils.
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.