Lobelia speciosa Starship Scarlet
Lobelia speciosa Starship Scarlet
Lobelia speciosa Starship Scarlet
Lobelia speciosa Starship Scarlet
Lobelia speciosa Starship Scarlet
Lobelia speciosa Starship Scarlet
Lobelia speciosa Starship Scarlet
Lobelia x speciosa Starship Scarlet
Garden Lobelia, Cardinal Flower
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Description
The Lobelia x speciosa Starship Scarlet is part of a new generation of earlier hybrids, with an upright, narrow habit and well-branched growth, boasting abundant flowering. This colourful plant forms a cluster of purple-chocolate leafy stems that culminate in spikes of very bright red flowers from the first summer onwards. Generous and short-lived, this perennial is ideal for flowering in wet areas or near water points. It can also be grown in a pot, ensuring frequent watering.
The Lobelia x speciosa Starship Scarlet is a plant from the campanula family, originating from horticultural species. Derived from American species Lobelia cardinalis, L. splendens and L. siphilitica, this herbaceous perennial with a short lifespan (around 3 years) easily perpetuates by dividing the stumps every two years. The 'Starship Scarlet' variety forms a bushy and upright clump, 60 cm (24in) tall and 40 cm (16in) wide. Unlike most hybrid lobelias, this plant stands very upright and its stems are quite sturdy. It also stands out for its quick flowering and blossoms appearing as early as July. Its beautiful oblong foliage, with dentate margins, is glossy and sometimes slightly tinged with purple depending on the season. It is carried by dark-coloured stems that enhance the flower's colour. Each stem branches out and bears long, erect spikes adorned with very unique tubular corolla flowers, somewhat resembling soft-winged butterflies; each, 5 cm (2in) long, consists of 2 lips, the upper lip being bilabiate and the lower lip trilobed.
The Lobelia speciosa Starship Scarlet is a plant that thrives in damp to moist soil, ideal for embellishing the banks of water points, but also very beautiful in a bed where the soil remains cool in summer. In this usage, it can be paired with vernonias, the African Corn Lilies, white or pink hastate vervains, or Virginia mountain mints. This variety will also look stunning accompanied by grey or purple foliage in a tall bed. Plants such as Artemisia lactiflora, Carex granularis, or Hosta 'Lacy Belle' will provide the silver or bluish touch that forms a magnificent setting for its vibrant colours.
Lobelia speciosa Starship Scarlet in pictures
Flowering
Foliage
Plant habit
Botanical data
Lobelia
x speciosa
Starship Scarlet
Campanulaceae
Garden Lobelia, Cardinal Flower
Cultivar or hybrid
Planting and care
Plant the Lobelia x speciosa in a rather sunny exposure, in moist to wet soil and not too chalky. It actually fears winter humidity more than the cold. But since it requires moist soil in summer, it is preferable to overwinter it in regions with heavy frost. Some varieties see their stumps hollow out and rot in winter. To preserve and perpetuate them for many years, it is necessary to divide the stumps every 2 to 3 years, preferably in spring. Thus rejuvenated, they will be your companions for life. All hybrid lobelias are deciduous and their foliage completely disappears in winter.
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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