Veronica longifolia Marietta
Veronica longifolia Marietta
Veronica longifolia Marietta
Veronica longifolia Marietta
Veronica longifolia Marietta
Veronica longifolia Marietta
Longleaf Speedwell, Garden Speedwell, Long-leaf Veronica
awaiting flowering results
isabelle, 18/05/2022
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Description
Veronica longifolia 'Marietta', a spectacular, floriferous, compact and upright variety of long-leaved Veronica flooding flowerbeds with long spikes of small blue flowers with prominent silver stamens in summer. It is adorned with dense, dark ash-green foliage. A plant for wet areas which is ideal by water features, even in clayey and heavy soil, in full sun or partial shade.
Veronica longifolia is a herbaceous plant in the plantain family, found in northern and central Europe as well as Asia. It is fairly tall, forming clumps of erect stems over 1 m (3ft) tall in the wild. The 'Marietta' variety is a compact, floriferous form that will reach 40 to 60 cm (16 to 24in) high and 40 cm (16in) wide. Its leaves can be opposite, but are often whorled in groups of three or four. They are fairly narrow and lanceolate, with short petioles, deeply toothed, dark green glazed with silver. Flowering takes place in June-July with very dense racemes (clusters), resembling long narrow spikes, tightly packed with tiny flowers. These are tubular, intense and deep ultramarine blue and made up of four petals and two surprisingly clear prominent stamens. The nectar-rich flowers are followed by spineless, heart-shaped fruit capsules.
This perfectly hardy Veronica is very easy to grow and blends well with a multitude of plants to create magnificent summer compositions, on the banks of a pond.
Plant it alongside eupatoriums, pygamons, Lythrum salicaria, Filipendula rubra 'Venusta', and Euphorbia palustris, for example. In a wilder style, at the back of a flowerbed, this elegant perennial forms a very successful combination with tall grasses: Miscanthus, Panicum, Stipa... It can look elegant planted with old-fashioned perpetual roses, such as Felicia or Cornelia, for example.
Veronica longifolia Marietta in pictures
Flowering
Foliage
Plant habit
Botanical data
Veronica
longifolia
Marietta
Plantaginaceae
Longleaf Speedwell, Garden Speedwell, Long-leaf Veronica
Cultivar or hybrid
Planting and care
Veronica longifolia is an easy-going perennial, it prefers a rich and light soil with a slightly alkaline tendency (chalky). It appreciates humid atmospheres and being close to water, but needs light soil. It will develop and flower better in a sunny exposure. Veronica longifolia can be planted in the garden almost all year round, except during periods of frost and summer drought. Cut the faded flower stems to promote new flowers. Adding compost to the base of the plant every spring will give it vigour. Avoid using nitrogen-rich fertilisers as they will weaken the vegetation and make its stems bend more easily. At the end of winter, prune the plant to the base and fresh foliage will emerge in spring.
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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