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Collector's item

Rosa Mamy Blue - Hybrid Tea Rose

Rosa Mamy Blue® 'Delblue'

4,5/5
10 reviews
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2 reviews
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Beautiful, highly fragrant rose bush! It arrived in excellent condition as it was perfectly packaged (and without plastic!). I love it! I can't wait to see it bloom." Analysis and revision: "Beautiful, highly fragrant rose bush! It arrived in excellent condition as it was perfectly packaged (and without plastic!). I love it! I can't wait to see it bloom." The translation is accurate and maintains the same tone as the original text. There are no spelling or grammatical errors, and the structure of the sentences is correct. The British English terminology is used appropriately, such as "rose bush" instead of "rosier" and "bloom" instead of "s'épanouir." Overall, the translation is linguistically correct.

Florine, 29/06/2022

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This plant carries a 24 months recovery warranty

More information

Undoubtedly the 'bluest' rose in the Delbard collection. This bush rose, repeat flowering and floriferous, offers large turbinate and tubular flowers with an uncommon mauve-blue colour and a powerful, penetrating, addictive scent of 'blue' rose. Adorned with ample glossy green foliage, this upright bush provides magnificent flowers for bouquets. Its roses last 10 to 15 days in a vase!
Flower size
10 cm
Height at maturity
90 cm
Spread at maturity
60 cm
Exposure
Sun
Hardiness
Hardy down to -23°C
Soil moisture
Moist soil
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Best planting time March, October to November
Recommended planting time January to April, September to December
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Flowering time May to October
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Description

The 'Mamy Blue Rose' (Delblue), a modern hybrid tea, undoubtedly offers the 'bluest' rose in the Delbard collection. This bush rose, perennial and floriferous, offers large, beautifully tubular, mauve-blue flowers, which are uncommon and look wonderful in flower beds and bouquets. Their powerful 'blue' rose fragrance is penetrating, almost addictive. Adorned with ample glossy green foliage, this upright bush provides magnificent flowers that last 10 to 15 days in a vase!

'Mamy Blue' or 'Delblue' is a modern bush rose with large clustered flowers obtained by Delbard in 1991. Like all so-called 'blue' roses, this award-winning variety is also distinguished by a magnificent fragrance. 'Mamy Blue' forms a bushy and upright shrub, a bit rigid, and reaches about 90 m (295ft) in height and 60 cm (24in) in width at maturity, with rapid growth. It produces green, sturdy, thorny and well-branched branches, which bear ample foliage of a fairly deep and glossy green. Throughout the summer, if faded flowers are removed, the plant produces successive waves of large dark red buds that open into very beautiful 10 cm (4in) diameter flowers, whose perfect shape, deep and tubular cup opening onto a very tight core, is typical of hybrid tea roses. They are composed of 35 to 40 mauve-blue petals, leaning more or less towards pink depending on the nature of the soil, gracefully fringed. They are clustered in bouquets and carried at the end of long shoots of the year or emerging on 2-year-old stems.

This 'Mamy Blue' rose is in the same vein as Charles de Gaulle, Sissi, Waltz Time or Claude Brasseur, with which it can compose a very pretty flower bed with a thousand shades of pink-mauve-blue enhanced by some bush sage or penstemon in shades of pink to fuchsia red. It will find its place in the garden of any flower lover, whether a novice or an experienced gardener. With its retro charm and beautiful fragrance, it deserves a graceful setting and a place not far from the house. Some light-flowering perennial plants (Autumn Asters, foxgloves, penstemons), grasses, lavenders and nepetas, are ideal for enhancing its beauty and accompanying it late in the season. For example, marry it with a red or garnet rose (Charles de Mills, Papa Meilland, Roseraie de l'Haÿ, Hansa); their colours and fragrances create a beautiful symphony. With a little daring, you can also try the combination of mauve and soft orange or yellow with a rose like Danaë or Lady of Shalott. Simple and easy-to-grow perennials such as Geranium Rozanne, Geranium Pink Cloud, Nepeta Walker's Low and campanulas will accompany it for most of the summer. It looks good on its own or in a group of 3 plants and a large pot on your patio or balcony. Its flowers make beautiful romantic bouquets in the company of pink peonies and white lilacs.

Rosa Mamy Blue - Hybrid Tea Rose in pictures

Rosa Mamy Blue - Hybrid Tea Rose (Flowering) Flowering
Rosa Mamy Blue - Hybrid Tea Rose (Foliage) Foliage

Plant habit

Height at maturity 90 cm
Spread at maturity 60 cm
Habit Irregular, bushy
Growth rate fast

Flowering

Flower colour mauve
Flowering time May to October
Inflorescence Double
Flower size 10 cm
Fragrance Very fragrant
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour dark green

Botanical data

Genus

Rosa

Cultivar

Mamy Blue® 'Delblue'

Family

Rosaceae

Origin

Cultivar or hybrid

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Planting and care

Choose a sunny or lightly shaded spot with well-worked soil that is not too heavy and has enough nutrients. Avoid planting in poor and excessively dry soils. Prepare the soil by crumbling it and adding an amendment, such as blood, fish and bone, at the bottom of the planting hole. After planting, water abundantly to remove air pockets and continue to water regularly for a few weeks to help the roots establish.

Pruning modern repeat flowering roses is important for flowering and should be done in three stages:

1. Regular maintenance pruning: During the season, regularly shorten the flowering branches and remove faded flowers along with their stem, leaving 2 or 3 leaves to encourage repeat flowering.

2. Preparatory autumn pruning: Lightly prune in preparation for the 'main' spring pruning. Note: This is not recommended in regions with cold winters as this could weaken the bush.

3. Spring pruning: In February-March, when the buds have become shoots 2 to 3 cm (1in) long, prune the young, strong branches to one-quarter of their length.

When pruning, always aim to remove dead wood, diseased branches, and weak shoots while opening up the centre of the bush. Retain the most vigorous branches, generally 3 to 6 well-positioned, to maintain an attractive habit. Always prune at a slant ½ cm or 1 cm (0in) above an outward-facing bud.

Roses may develop unsightly spots at the end of summer, but this is a natural occurrence and doesn't harm the rose's growth.

Planting period

Best planting time March, October to November
Recommended planting time January to April, September to December

Intended location

Suitable for Meadow
Type of use Border, Container
Hardiness Hardy down to -23°C (USDA zone 6a) Show map
Ease of cultivation Amateur
Planting density 1 per m2
Exposure Sun
Soil pH Any
Soil type Clayey (heavy), Clayey-chalky (heavy and alkaline), Silty-loamy (rich and light)
Soil moisture Moist soil, well-worked and lightweight

Care

Pruning instructions Pruning modern repeat flowering roses is important for flowering and should be done in three stages: 1. Regular maintenance pruning: During the season, regularly shorten the flowering branches and remove faded flowers along with their stem, leaving 2 or 3 leaves to encourage repeat flowering. 2. Preparatory autumn pruning: Lightly prune in preparation for the 'main' spring pruning. Note: This is not recommended in regions with cold winters as this could weaken the bush. 3. Spring pruning: In February-March, when the buds have become shoots 2 to 3 cm (1in) long, prune the young, strong branches to one-quarter of their length. When pruning, always aim to remove dead wood, diseased branches, and weak shoots while opening up the centre of the bush. Retain the most vigorous branches, generally 3 to 6 well-positioned, to maintain an attractive habit. Always prune at a slant ½ cm or 1 cm (0in) above an outward-facing bud.
Pruning Pruning recommended once a year
Pruning time February to March, October to November
Soil moisture Moist soil
Disease resistance Average
Overwinter Can be left in the ground
4,5/5
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