Helianthus Waooh! - Sunflower
Helianthus Waooh! - Sunflower
Helianthus annuus Waooh!
Sunflower, Common Sunflower
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This plant carries a 6 months recovery warranty
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Description
Helianthus annuus Waooh! is a fast-growing, annual plant that can reach up to 90 cm in height. Shorter and more branched than most other varieties of Garden Sunflowers, the Waooh! variety can be used in both flower beds and pots. Throughout the summer, it is covered with numerous bright yellow flowers with a brown centre that attract pollinating insects. They are excellent cut flowers, for fresh or dried compositions. It is easy to sow.
From the Asteraceae family, everyone knows Helianthus annuus, well-known for the sunflower oil extracted from its seeds. The Waooh! variety, on the other hand, is only cultivated for its flowers. They measure about ten centimetres in diameter. The brown centre is crowned with bright yellow petals. It is a compact and branched variety that reaches between 70 and 90 cm in height and 30 to 60 cm in width. Its generous flowering spreads from July to October. Sow your seeds at different times to enjoy its beautiful flowers for longer. They are carried by sturdy stems, perfect for your summer bouquets. Cut the flowers in the morning just after they open. Remove the leaves starting from the bottom, leaving only 2 or 3 leaves below the flower. Change the water in the vase for fresh water every day.
In the garden, Helianthus annuus Waooh!, which has been awarded the Royal Horticultural Society's Award of Garden Merit, can be used in many ways: in the back of a flower bed, to create a small border, or even in a large pot.
It is an easy-to-grow plant that enjoys sun and moist, well-drained soil. It is water-hungry so water it regularly. In wind, stake the stems.
Flowering
Foliage
Plant habit
Botanical data
Helianthus
annuus
Waooh!
Asteraceae
Sunflower, Common Sunflower
Cultivar or hybrid
Planting and care
Sow the Sunflower Waooh! from March to May in a pot for planting in open ground after the last frost. Place one seed per pot or in a hole with 2 or 3 seeds (keep the best young seedling). Cover the seeds lightly with seed compost. Water generously with a fine rain. Sunflower seeds need light to germinate, without direct sunlight, and a temperature of about 20°C during the day. At night, the temperature can be cooler (around 15°C).
The seeds will take between 7 and 14 days to germinate. Keep the soil moist, but not excessively, during growth. 15 days before their final planting (after the last frost), start gradually acclimatising them to a temperature of 15°C.
Once all risk of frost has passed, plant your young sunflower plants (they should have at least 3 to 4 true leaves) in the garden or in a pot. Choose a sunny location and well-drained moist soil. Water regularly.
It is also possible to sow your sunflowers directly in place from May onwards.
Handy tip: stagger your sowings to extend their flowering until autumn.
Sunflowers can be susceptible to powdery mildew and aphids, and snails and slugs may attack their young leaves.
Sowing period
Intended location
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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