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Dahlia Sam Hopkins

Dahlia Sam Hopkins
Dahlia

4,6/5
5 reviews
1 reviews
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I've just received a whole range of dahlias, the tubers seem to be of good quality, but obviously I can't say anything yet about the flowering.

Elisabeth B., 16/04/2018

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This plant carries a 6 months recovery warranty

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Value-for-money
This dahlia produces very beautiful double flowers, velvety, in a dark purple-red colour with hints of wine and black towards the centre, with a diameter of 12 cm (5in). It blooms from July to October, on stems that can reach a height of 1.20 m (4ft). The young plant, well bushy, is ideal at the back of a flower bed.
Flower size
12 cm
Height at maturity
1.20 m
Spread at maturity
70 cm
Exposure
Sun
Hardiness
Hardy down to -4°C
Soil moisture
Moist soil
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Best planting time March to May
Recommended planting time March to May
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Flowering time July to November
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Description

Dahlia Sam Hopkins produces opulent velvety deep red flowers with rich almost black wine-coloured reflections at the heart. This elegant decorative variety will bring relief to borders and large borders from July until the first autumn frosts. With beautiful stature, it blends perfectly with medium-sized grasses, the Tartan Dahlia and white asters, for example. Its flower is sumptuous in bouquets.

Dahlias are part of the Asteraceae family and are originally from the high plateaus of Mexico. At present, the thousands of horticultural varieties obtained by humans have invaded gardens all over the world, much to our delight.
The 'Sam Hopkins' variety, registered in 2006, is classified as a decorative Dahlia, which is a horticultural category defined by the shape of the flower. In this group, the coloured ligules of the head are arranged regularly in a spiral, they can be curved towards the stem or fringed, for example. In this Sam Hopkins variety, the inflorescences in heads measure 12 cm (5in) in diameter and their ligules or petals are barely incurved. Each flower, very dark red in colour, has a few small green floral bracts at its centre. The generous flowering occurs from July to October. The habit is bushy, the plant reaches up to 1.20 m (4ft) in height when in flower and 50-60 cm (20-24in) in width. The very branched stems are hollow but sturdy, and the leaves are opposite and pinnately lobed, meaning they are divided into 3 or 5 very dentate lobes. The leaves are a medium bluish-green in this variety, while the stems are slightly reddish at their tips.

To encourage repeat flowering, take care to remove faded flowers, or even better, regularly make large colourful bouquets by combining it with other varieties. 'Sam Hopkins', richly coloured, builds the decor of a dedicated border all by itself, but its flowers will be enhanced by lighter and more discreet blooms, such as those of catnip, agastaches, gauras, for example. In borders, this variety elegantly pairs with Purple Fountain Grass, and boldly with green coneflowers. The combination of red tones with the range of blues and purples is remarkable: think of phlox in mauve tones, Buenos Aires verbena, blue campanulas, and autumn asters, for example. This variety with very flowery stems allows you to embellish bouquets until late in the season.

As the star plant of borders and cottage gardens, Dahlias confidently accompany the most beautiful flowers, but are also appreciated alongside vegetable plants. In Mexico, this tuber was first cultivated as a root vegetable for consumption. However, its poor taste qualities assigned it the rank of an ornamental plant.

 

Dahlia Sam Hopkins in pictures

Dahlia Sam Hopkins (Flowering) Flowering
Dahlia Sam Hopkins (Foliage) Foliage

Plant habit

Height at maturity 1.20 m
Spread at maturity 70 cm
Growth rate fast

Flowering

Flower colour red
Flowering time July to November
Flower size 12 cm
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour dark green

Botanical data

Genus

Dahlia

Cultivar

Sam Hopkins

Family

Asteraceae

Other common names

Dahlia

Origin

Cultivar or hybrid

Planting and care

Plant your dahlias during the warmer days in soil that has been deeply worked and enriched, for example, with bonemeal.  Place your tuber and crumble the soil well to fill without any air pockets. Your dahlia should be covered with 6 cm (2in) of soil. At the end of planting, add one litre of water. Water regularly during the first 6 weeks to help with rooting. Dahlias are sensitive to cold. They need to be overwintered. In November, the first frost will blacken the foliage, which is the time to dig them up. Carefully remove the tubers. Remove as much soil as possible. Let the foliage dry so that the tuber can replenish its reserves. When the foliage is dry, cut the stems 10 cm (4in) from the tuber. Spread your bulbs in a crate on a newspaper. Store in a frost-free, dry, cool, and dark place.

Planting period

Best planting time March to May
Recommended planting time March to May
Planting depth 10 cm

Intended location

Suitable for Meadow
Type of use Border
Hardiness Hardy down to -4°C (USDA zone 9b) Show map
Ease of cultivation Amateur
Planting density 2 per m2
Exposure Sun
Soil pH Any
Soil moisture Moist soil, Fertile, well-drained

Care

Pruning No pruning necessary
Soil moisture Moist soil
Disease resistance Very good
Overwinter Needs to be stored
4,6/5
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