Introduction to Prunus cerasifera 'Pissardii'
El Cherry plum 'Pissardii', commonly known as red plum, purple plum o Pisardi cherry tree, is one of the most appreciated ornamental trees in urban and private gardening. Its beauty lies mainly in the contrast of its purple and reddish leaves against other trees with green foliage. In addition, its flowers and fruits provide great aesthetic value, making it a recurring option for small gardens, urban street alignments, or parks. In this article, we will delve into its Botanical characteristics, its origin and varieties, as well as in essential care to enjoy a healthy and spectacular specimen.
Origin and distribution of Prunus cerasifera 'Pissardii'
El Prunus cerasifera be part of the family Rosaceae, comprising hundreds of species of trees and shrubs originating primarily in the temperate zones of the Northern Hemisphere. The red plum tree is believed to have originated in western Asia and the Caucasus region, from where it has spread widely throughout Europe, America, and other parts of the world due to its hardiness and ornamental value.
The gender Prunus It includes species known for their fruits and also others of purely decorative interest, such as the 'Pissardii' variety. Within the genus, other species stand out such as the Prunus domestica (European plum), prunus spinosa (blackthorn), Prunus (peach), Prunus avium (cherry tree) and Prunus armeniaca (apricot tree), among many others.
The red plum tree is a ubiquitous tree in cities and gardens, especially in Europe and various temperate regions, where it stands out for its adaptability and visual contrast with other green-leaved species throughout the year.
Botanical characteristics of Prunus cerasifera 'Pissardii'
This deciduous tree It is characterized by its medium size, reaching between 4 and 8 meters in height and presenting a rounded, dense, and highly branched crown, giving it an attractive, spherical shape. It can be grown as a tree or shrub, depending on pruning and available space.
- Sheets: Its leaves have a deep purple or reddish color, elliptical or lanceolate in shape, with a finely toothed margin and a smooth texture. Their arrangement is alternate and they typically measure between 4 and 7 cm long. The color of the leaves can vary from dark purple to lighter reddish tones depending on the lighting and soil type.
- Flowers: One of its most notable features is its early and abundant flowering, which generally occurs from late winter to early spring, before the leaves appear. The flowers are solitary, small (2 to 3 cm in diameter), soft pink or pale pink, pentamerous (five petals), and hermaphroditic. Their presence creates a unique visual impression, covering the branches with a "cottony" appearance that heralds the arrival of spring.
- Fruit: After flowering, the Cherry plum 'Pissardii' It produces small, edible drupes similar in appearance to cherries, dark red or purple in color and measuring 2–3 cm. Although not cultivated for its fruit, these are suitable for consumption, notable for their acidic flavor, which can become sweet if left to overripe or used to prepare jams and preserves.
- Bark and appearance: The trunk is thin and straight, with dark brown bark and ascending branches that allow excellent branching and canopy balance.
Pigments in foliage: photosynthesis in purple leaves
A curious aspect of the red plum is the presence of different pigments in its leaves. Although green tones usually predominate in most plant species due to their high chlorophyll content, in the case of Prunus cerasifera 'Pissardii' the purple is mainly due to the abundance of other pigments such as anthocyanins y carotenosDespite the color, the plant photosynthesizes without any problems, since chlorophyll is still present, although masked by these secondary pigments. These substances contribute not only to its visual appeal but also to its adaptability and protection against adverse environmental conditions.
Featured varieties and cultivars
Among the ornamental varieties of Prunus cerasifera, 'Pissardii' is the most widespread, although there are others such as 'Atropurpurea' y 'Nigra', which provide slight variations in leaf tone and the intensity of the purple, sometimes reaching almost black hues. All these varieties share a hardiness, showy flowering, and ease of cultivation, so they can be chosen according to aesthetic preferences and environmental conditions.
Uses in gardening and landscaping
The red plum is commonly used as isolated specimen, a hedges or as alignment element in streets and public parks. Its main advantages are its manageable size, low maintenance requirements, and high resistance to urban pollution and adverse environmental conditions. Furthermore, thanks to the chromatic contrast of its foliage, it is a common resource for breaking up the monotony of greenery and achieving harmonious or striking visual effects in gardens and public spaces.
- Ideal for small gardens for its contained appearance and compact crown.
- Perfect for urban parks y streets due to its resistance and low care requirements.
- Can be used in groups along with other species of green tones to create compositions of great visual interest.
Growing conditions: location, climate and light
El Cherry plum 'Pissardii' it's a kind deciduous of great rusticity. It prefers to be full sun to show the maximum intensity of color in its leaves and flowers. However, it is also capable of developing in semi-shadow, although under these conditions the leaves may turn greener. Excessively shady areas are not recommended, as the plant may lose some of its chromatic appeal, and its flowering may be significantly reduced.
As for the weather, it is cold resistant, perfectly tolerating medium-intensity frosts and prolonged winter periods. The hours of accumulated cold during the winter (vernalization) are favorable for stimulating early and abundant flowering. Furthermore, it also tolerates hot summers and even short periods of drought once well established.
In regions with extreme temperatures or marked contrasts, the location It will be ideal in places protected from strong winds, facing south or southeast to optimize sun exposure and the intensity of leaf coloration.
Soil type and nutritional needs
One of the main advantages of the red plum is its adaptability to a wide variety of soilsAlthough it is not particularly demanding, it prefers soils loamy or clayey loam, with good water retention capacity, a loose structure, and rich in organic matter. The optimal pH is neutral, but it tolerates certain acidity or alkalinity without major problems. It tolerates calcareous soils provided they have sufficient moisture, but it cannot tolerate salinity.
Aeration and drainage are key to healthy development, as excess water or flooding can predispose it to fungal diseases. While it tolerates somewhat poor soils, a surface cover rich in organic matter favors its growth and flowering.
El subscriber It does not require any extraordinary routines: just add compost, manure or humus of worms every one or two years at the end of winter or beginning of spring. This stimulates sprouting, flowering, and rooting.
Irrigation of the red plum tree
El Cherry plum 'Pissardii' present an good drought tolerance Once established, this makes it easy to maintain in dry climates or during hot summers. However, to achieve lush flowering and dense foliage, it is advisable to maintain a constant level of soil moisture during the period of active development (spring and summer).
- In the first years after planting, carry out moderate and regular watering, avoiding puddles and allowing the surface layer to dry slightly between waterings.
- During the summer, increase the frequency without saturating the substrates.
- In winter, reduce watering drastically: the tree enters dormancy and minimizes its water requirements.
Pruning and training
La pruning It is essential in the maintenance of the red plum tree, although its natural shape is generally balanced and spherical. Pruning is recommended initial and continuous in young trees to define their structure, and pruning of maintenance annually to remove dry, diseased or poorly oriented branches.
- The more intense pruning They should be carried out in late autumn, when the plant has lost its leaves and is in vegetative dormancy.
- Light pruning is tolerated throughout the year if a branch needs to be corrected.
- It is not a suitable tree for topiary, but it can be pruned for tall hedges or alignments.
Proper pruning promotes aeration of the foliage, facilitates light penetration and stimulates flowering for the following season.
Multiplication and reproduction
Prunus cerasifera 'Pissardii' can multiply through seeds, cuttings o grafts, the latter method being common to ensure the conservation of the ornamental characteristics of the variety.
- La sowing seeds It is carried out in autumn or spring, although it does not guarantee the fidelity of the characteristics of the parent if the pollination has been crossed with other varieties.
- La reproduction by cuttings It is simple and recommended: with the help of rooting hormones, a light and well-nourished substrate, and maintaining high humidity, rooting is facilitated during spring or summer.
- El graft on vigorous Prunus rootstocks is the ideal method for professionals, ensuring healthy growth and the persistence of the traits of the cultivar 'Pissardii'.
The red plum tree is self-pollinating, so it does not require the presence of other specimens to bear fruit.
Plagues and diseases
This tree is resistant to most pests and diseases, which contributes to its ease of cultivation. However, it can occasionally be affected by:
- Aphids, which can cause deformations in young shoots and the appearance of honeydew.
- Mealybugs, in excessively humid or poorly ventilated environments.
- Mushrooms, as a result of excessive irrigation or poorly drained soils (cryptogamic diseases).
The most effective preventative practices include avoiding waterlogging, keeping the tree well-aerated, and monitoring for early signs of infestation so you can respond quickly using organic products or specific insecticides.
Fruits, toxicity and culinary uses
The fruits of the red plum tree 'Pissardii' are edible drupes, although they don't stand out for their sweetness or size. Rather, they stand out for their intense color and acidic flavor, suitable for occasional consumption as a healthy snack, and excellent for making jams y jams thanks to its peculiar acidity.
They are not considered toxic to people or pets, although as with other stone fruits, it is recommended to avoid eating the pit due to its cyanogenic compound content present in many species of the Prunus genus.
Advantages and singularities compared to other ornamentals
- Very early flowering: one of the first species to flower after winter, providing color when other plants are still dormant.
- Atypical foliage: leaves with a striking purple hue that remains for much of the year.
- Rusticity and low maintenance: tolerant to drought, pollution and resistant to common pests.
- Design Versatility: suitable for urban gardening, hedges, alignments and as a centerpiece in small private gardens.
- visual contrast: allows you to create compositions with a strong visual impact alongside species with green foliage.
Additional tips for successful growing
- Choose young specimens to facilitate rooting and increase the tree's longevity.
- Avoid planting too close to walls or other tall plants to ensure proper sunlight and ventilation.
- If the goal is to use it as a hedge, perform training and maintenance pruning regularly from the first years of growth.
- In extremely hot climates, protect young plants from direct sunlight during the central hours of the day.
The inclusion of Cherry plum 'Pissardii' In the garden, it provides a touch of color and vibrancy year-round, becoming a focal point thanks to its unique foliage and spectacular blooms. Choosing this tree means opting for hardiness, easy maintenance, and lasting beauty, ideal for both gardening experts and amateurs.
