Dahlia Mango Madness
Dahlia Mango Madness
Dahlia Mango Madness
Dinnerplate dahlia, decorative dahlia
The bulbs were a good size. Now I'm just waiting for them to flower.
élisabeth, 29/03/2026
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This plant carries a 6 months recovery warranty
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We guarantee the quality of our plants for a full growing cycle, and will replace at our expense any plant that fails to recover under normal climatic and planting conditions.
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Description
'Mango Madness' is a giant decorative dahlia that unfurls enormous "Dinnerplate" flowers, the size of a plate, in a gradient of mango, apricot, coral, and pink, highlighted by a slightly smoky reverse. The plant is vigorous, forming a well-branched clump, ideal to create a focal point in the heart of a border. In flower from mid-summer until autumn, it is a cut flower that allows for the creation of spectacular cut flower arrangements.
The Dahlia belongs to the Asteraceae family and originates from the mountainous regions of Mexico and Central America. It is a tuberous perennial. In our gardens, it is a non-hardy plant grown from tubercles, to be planted in spring once the frosts have passed, then lifted and overwintered dry and frost-free.
The Dahlia 'Mango Madness' is classified in the horticultural group of decorative dahlias, more specifically among the giant decorative types; its heads are fully double flowers which almost completely conceal the centre. This cultivar was developed in the United States by hybridiser Nick Gitts (Swan Island Dahlias, Oregon) and launched in 2009; it was quickly distinguished with the Derrill W. Hart Medal from the American Dahlia Society, an award given to the best "giant" tested in trial gardens.
The plant has a bushy, dense, and slightly columnar habit, with robust stems, dark green to purplish-brown. Its foliage is medium to dark green, divided into slightly undulate leaflets. The inflorescences are heads 20 to 25 cm in diameter, filled with lanceolate, pointed "petals", arranged in multiple layers and slightly tousled. Flowering spreads from July until October. The plant reaches between 90 cm and 1.20 m in height and 40 to 60 cm in width. Like many giant decorative dahlias, it benefits from staking to support the weight of the flowers.
In the garden, this dahlia is used as a centrepiece, to be placed at the back of a border or in a large container on the terrace. It pairs particularly well with ornamental grasses like Miscanthus sinensis ‘Morning Light’, or with the violet clouds of Verbena bonariensis. It can be combined with the large flowers of dahlias ‘Café au Lait’ and 'Fleurel' for a sophisticated pastel ambiance, or conversely, play on contrast with the more coppery tones of ‘Cornel Brons’. In bouquets, a few stems of this dahlia are enough to create a sumptuous centrepiece; it combines wonderfully with light foliage and flowers in very contemporary displays.
The dahlia was once tested in Europe as a vegetable plant for its inulin-rich tubercles. It is still the national flower of Mexico today, where it symbolises both horticultural creativity and the historical links between the gardens of America and Europe.
Discover all our Giant Dahlias.
Plant habit
Flowering
Foliage
Botanical data
Dahlia
Mango Madness
Asteraceae
Dinnerplate dahlia, decorative dahlia
Cultivar or hybrid
Planting and care
Plant the Dahlia 'Mango Madness' in spring, once all risk of frost has passed and the soil has warmed up.
Place the tubercles horizontally, 10–15 cm deep, with the eye or buds facing upwards, in well-loosened, organically rich, and perfectly drained soil, in full sun. Space the young plants about 60 cm apart to allow room for growth and install a sturdy stake at planting time to support the tall flowering stems. Water regularly to keep the soil moist but not waterlogged, especially during active growth and flowering periods, and apply a fertiliser relatively high in potash, without excess nitrogen, to encourage flowers rather than foliage. Remove faded flowers as they appear to prolong flowering until the frosts.
At the end of the season, as soon as the foliage blackens, cut the stems to about twenty centimetres above the soil, dig up the tubercles, let them dry for a few hours, then store them throughout the winter in a dry, well-ventilated, frost-free location, in turf, wood chips, or newspaper, ready for replanting the following year.
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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