Dahlia Purple Gem
Dahlia Purple Gem
Dahlia Purple Gem
Dahlia Purple Gem
Dahlia Purple Gem
Dahlia
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This plant carries a 6 months recovery warranty
More information
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
The Dahlia 'Purple Gem' is a semi-cactus variety that stands out with its large, ruffled flowers in magenta violet. They are produced abundantly from summer until the first frost on a beautiful, tall, bushy clump. This variety brings colour and dynamism to sunny beds and floral compositions.
Dahlias belong to the aster family and are originally from the high plateaus of Mexico. Currently, the thousands of horticultural varieties obtained by humans have invaded gardens worldwide, much to our delight. They are perennial plants with fleshy tubers. The 'Purple Gem' variety forms a clump that reaches 80 cm (32in) to 1 m (3ft) in height and about 50 cm (20in) in width. It is classified as a cactus dahlia, or more precisely, a semi-cactus lace variety; this is a horticultural category defined by the shape of the flower. In this group, the coloured ligules of the head are incompletely rolled up, at least one-third of their length. This Dahlia has slightly curled ligules at their tips, randomly split, and more flattened at the base. The flowering of this variety begins in July and ends in October-November. The heads measure 15 cm (6in) in diameter. The habit is bushy and upright, with very branched hollow stems. Its leaves are opposite, pinnatisect, dividing into 3 or 5-toothed lobes. The leaves are bright green.
If you remove the faded flowers, you will enjoy a prolonged flowering period. Combine various varieties to create beautiful full bouquets with generous dahlias. Lighten the silhouette of dahlias by pairing them with more airy flowers such as gauras, salvias, or coneflowers. Delicate foliage plants like grasses play the same role and add beautiful golden spikes. Plant 'Purple Gem' in the middle of a bed of bushes and lower perennials, accompanied by blue or pink flowering plants or even salmon-coloured ones like some daylilies.
As a star plant for borders and cottage gardens, Dahlias confidently accompany the most beautiful flowers, but are also appreciated alongside vegetable plants. This tuberous plant was initially cultivated as a root vegetable for consumption in Mexico. However, its poor taste qualities relegated it to the rank of an ornamental plant.
Dahlia Purple Gem in pictures
Plant habit
Flowering
Foliage
Botanical data
Dahlia
Purple Gem
Asteraceae
Dahlia
Cultivar or hybrid
Planting and care
The Dahlia is easy to grow in all regions. For abundant flowering, it is good to follow a few simple rules. Plant the tubers in full sun when the last frost is over. Rich, fresh, and well-drained soil is perfect. However, stagnant humidity would promote tuber rot. Feel free to amend the soil with compost and sand if needed. Work the soil deeply and enrich it, for example, with blood, fish and bone. Place your tuber and crumble the soil well to fill without air pockets. Your dahlia should be covered with about 6 cm (2in) of soil. At the end of planting, water once abundantly and then regularly water during the first six weeks to help with root development.
Dahlias are sensitive to cold, so they need to be overwintered. In November, the first frosts blacken the foliage, which is the time to dig them up. Carefully remove the tubers from the ground. Remove as much soil as possible. Let the foliage dry so that the tubers can replenish their reserves. Then cut the stems to 10 cm (4in). Spread your bulbs in a box of newspaper. Store them in a frost-free, dry, cool, dark place like a garage or attic. In mild climates close to the coast, with few days of frost per year, it is possible to leave them in place. In this case, cover the ground with a layer of leaves or straw for protection.
Tall dahlias with hollow stems are not resistant to wind or heavy rain. To overcome this disadvantage, you can stake them, but let's agree, it's not very aesthetic. On the other hand, by pinching the stems early or removing the axial flower buds, you will spread out the habit of the plant, which will offer more resistance to bad weather. At the same time, you channel the sap flow to a single flower that will become larger and stronger.
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.