Knock Out White

Class

Dicotyledons

Division

Angiospermae

Family

Rosaceae

Order

Rosales

Genus

Pink

Species

hybrida

Description

Ornamental perennial shrub with vigorous growth and different habitus, ranging from bushy, upright or climbing depending on the variety; the prolonged flowering is manifested by a profusion of flowers, often scented, in refined and luminous shades, in a wide range of colours. Used mainly to decorate gardens but also terraces and balconies.

Varietal description

A new-generation rose that performs very well in continuous re-flowering with a flowering time even in very hot climates and with a prolonged flowering time almost 12 months of the year.

curiosity and special features

For thousands of years it has been loved to adorn gardens but also as a cut flower. Loaded with symbolism and a protagonist of mythologies, the very birth of the Greek goddess of love, Aphrodite, is often depicted wrapped in roses and many of the myths surrounding her include rose motifs.

From being an emblem of silence and secrecy in ancient Greece, it was hung from the ceilings of Roman council chambers so that those present would keep the discussions held in the room secret, this custom continued during the Middle Ages where carvings of roses decorated the ceilings of political and confessional chambers. The rose also became a political symbol depicted in the coat of arms of the Tudor family in Britain.

Of interest is the use of certain rose varieties in the preparation of infusions, drinks, jams, sweets as well as in cosmetics.

Origin and Diffusion

Ornamental roses, derived from wild roses, originated in the geographical range of the Mediterranean and East Asia, particularly China. The history of roses is ancient, dating back to around 300 B.C. the first western cataloguing attributed to Theophrastus while Alexander the Great introduced cultivated roses to Europe a few years later. In the 18th century, through trade between Europe and the East, the first modern ornamental roses made their appearance with the beginning of the spread of hybrids with shrubby or climbing habit and with flowers, perfumed or not, with considerable chromatic variability of the petals and re-flowering, the latter characteristic deriving from roses originating in China.

Flower size

The flower individually is small, lending elegance and sinuosity to the lush bloom.

Leaf

Has leaf with imparipinnate lamina.

Flowering period

The flowering will give an unmistakable touch of colour and refinement from mid-spring to autumn, lasting from 150 to 200 days.

Inflorescence

Inflorescence corymb.

Leaf color

Solid colours.

Plant height

The height of the plant varies from 0.6 to 1 m, considering the habit of the variety.

Lifespan

Perennial plant.

Suggested planting locations

With its spectacular blooms, it is an excellent solution for flowerbeds, traffic island flowerbeds, borders, large flowerbeds and road roundabouts, outdoor ponds

Stem/stem

Semi-woody stem, the variety has hooked thorns.

Flower

The flower is simple in form, small in size, with a rounded corolla and single-coloured petals. It is arranged in medium-sized corymbal inflorescences. It flowers from mid-spring to autumn, with a flowering period of 150 to 200 days. It has sweet notes and is lightly scented, with a delicate aroma. It is attractive to bees, butterflies and bumblebees.

Growth

It shows medium to vigorous growth, giving the plant a dominant role and becoming a focal point of significant aesthetic value.

Plant habit

Upright varieties.

branching

The branching is medium, giving an interesting decorative result with a high density of flowers.

pH

For roses, the ideal pH of the soil or medium ranges from sub-acidic to neutral, with values in the range of 5.5 to 7.0.

soil preparation

Before transplanting in early spring or early autumn, carry out 20/30 cm deep digging, removing weeds, any residues of previous crops and bulky stones. Proceed with burying slow release chemical or organic fertiliser, and if the soil is not draining well, it is advisable to add sand as well. Finally, evenly distribute professional-quality substrate on the surface for about 5/10 cm and carefully level out.

Read more on the Joyflo blog

sun exposure

The optimum exposure for proper development is in half shade, full sun; for best flowering, it is recommended to place the plant in a sunny position, ensuring that it is watered appropriately during the hottest period.

Ideal climate and temperature

The biological temperature is between 10 and 30 °C. The ideal temperature is between 15 and 30 °C; it is suitable for temperate climates.

Use

Always loved and appreciated by growers, landscapers and green enthusiasts at all levels of experience as a plant for use in
Outdoor ornamental

Hardiness

Variety ofmedium to high hardiness.

Soil/medium

The ideal soil for roses is medium-textured, loosely loosened and well draining; a coarse rose soil made of peat, clay granules, lapilli and wood fibre is recommended for use in tubs.

Maintenance

It is extremely easy in general maintenance, the level of management effort is low, giving the plant considerable added value.

cultivation tips

For best results in terms of growth vigour and flowering, it is recommended to

Expose the plant to maximum light For a good, abundant and continuous flowering, it is necessary to fertilise well both in autumn and in spring at the vegetative restart and to water regularly

planting

An average planting density of 6 plants per square metre is recommended to ensure proper development, considering the bearing and height attained at maturity. We also recommend watering well immediately after transplanting but avoiding waterlogging. For sarmentose varieties, use supports and tie up with raffia or wicker.

pruning

Pruning is applied in cultivation to encourage branching or branching out the following year. Remove part of the old vegetation by reducing its length and favour the branches of the new vegetation.

Reproduction/Propagation

Propagation can be by apical or node cuttings depending on the variety; propagation by grafting is also possible.

Irrigation

Use rainwater, or alternatively aqueduct water with an optimal pH of sub-acid. When transplanting it is advisable to provide an initial abundant wetting, assisting the seedling so that it can develop properly in the new planting site; then allow the soil or substrate to dry out slightly, keeping them moist but avoiding water stagnation, which can encourage fungal diseases. Do not water the aerial part of the plant during the late afternoon or evening, also avoid water stress to prevent mite attacks and defoliation.

Read more on the Joyflo blog

Fertilization

During pre-transplant soil preparation, carry out a background fertilisation with slow-release organo-mineral fertiliser. Following proper planting in the new planting site, it is advisable to use a fertiliser for flowering plants containing macro- and micronutrients, in particular with an adequate nitrogen and phosphorous content to encourage vigorous growth and excellent flowering; natural organic fertilisers, mineral fertilisers or organic-mineral fertilisers can be used, to be distributed at the foot of the plant diluted in the irrigation water or slow-release granular fertilisers.

To favour root development and therefore a good rooting of the new plants, it is necessary to remember that generally the roots will develop beyond the projection of the foliage, a very useful information to foresee successive watering and fertilisation, furthermore a balanced nutrition can make the plant healthier and more resistant to the attack of parasites and phytopathologies.

Read more on the Joyflo blog

Pet friendly

Ingestion toxicity not known, consider specific case.

Edibility for humans

The flowers of some varieties are edible. Consider the variety before possible ingestion.

Human toxicity

Ingestion toxicity not known, avoid ingestion.

advise 1

To have a good vegetative recovery in spring, pruning to a height of about 30-35 centimetres is necessary between December and January. An organic mineral fertilisation in autumn and a slow release fertilisation in spring is essential.