In total, there are about 750 species of this plant, among which there are evergreen and deciduous trees or shrubs. Under natural conditions, they are most widely represented in the tropical and subtropical latitudes of both hemispheres. By the way, the branches of mimosa so popular in March are nothing but the southern "silver" acacia!
The name Acacia is derived from the Greek word "akis", which translates as "point". And it is not by chance that many species of this plant have thorns: sometimes they are located at the base of the leaves, sometimes the leaves themselves end in spikes.
Acacia leaves look like feathers because of the numerous small leaves symmetrically located on both sides of the central vein. The flowers of acacias are usually not large, collected in a complex paniculate, capitate or spicate inflorescences, usually yellow or white. Fruits are bivalves or non-opening beans. Therefore, data from different sources diverge, it is still not clear to which family does the Acacia belong: legumes or mimosa?
Acacia (erroneously from a scientific point of view) also refers to some trees of the legume family: Karagana (the so-called "yellow acacia") and Robinia ("white acacia").
Acacia - species and varieties
First of all, it is necessary to single out the Silver Acacia (Acacia dealbata), also known as mimosa. This evergreen shady tree comes from Australia. Its name - silver - this acacia got for whitish plaque on the branches and ashy shade of foliage. Its spherical yellow flowers have a delicate scent. Flowering period: the middle of winter - the beginning of spring.
The most widespread in indoor floriculture received the view of Armed (Acacia armata) or - another name - Paradoxical Acacia (Acacia paradoxa).
It is a highly branchy, but rather compact shrub with thin ribbed branches. Its shoots are densely covered with rich green phyllods. Growing buds have spines - these are modified stipules. In March - April, the plant blooms magnificently and spectacularly. The flowers are very fragrant, bright yellow in color, collected in the capitate single inflorescences.
Mutate Acacia (Acaciaverticillata) or mimosa is a small shrub. Its branches are thin, the phyllodes are soft, needle-shaped and dull green in color, the flowers are light yellow, gathered in short spiciform inflorescences. Flowering time: March-April.
How to grow acacia?
This elegant tree is well suited for landscaping bright and spacious rooms: winter gardens and greenhouses. All species of this plant are very light-requiring and even tolerate a certain amount of direct sunlight.
In the summer of Acacia, a temperature regime of 20-25 ° C is required. The plant is useful to make fresh air. Wintering should be cool (not higher than 8-10 ° C), but sunny.
Acacia is not demanding on air humidity, but watering (especially in summer) should be abundant.
The tree must be fed during the growing season (spring-summer).
Representatives of the genus Acacia are characterized by rapid growth. To form a lush crown in a plant, it is recommended to cut out weak and excess branches after flowering.
Repot Acacia only after flowering, because the plant is characterized by intensive growth, the capacity for it is necessary to choose a deep and spacious. Young plants are transplanted every year, adults - no more than once every two or three years.
Mixtures suitable for Acacia:
- sod and leaf earth + sand (2: 1: 1);
- humus and peat land + sand (2: 1: 1).
Causes of possible problems
- If the Acacia buds fall, the reason may be a lack of moisture.
- Leaves wither due to improper watering (excessive or insufficient). The reason may be too "heavy" substrate.
- The faded leaves are the result of a lack of light. In winter, the plant is desirable to provide additional illumination.
- If the tips of the leaves dry up - dry air or lack of moisture in the soil.
- Dark spots on the leaves may be due to exposure to low temperatures or drafts.
- Low humidity creates a prerequisite for the disease of spider mites.
Reproduction Methods of Acacia
There are two ways of reproduction of this plant: with the help of seeds and grafting.
Acacia reproduction with seeds
Sprouting seeds is best to start in January.
Before sowing, the seeds of Acacia should be soaked in water. Its initial temperature should be high - from 40 to 60 ° C. It is best to add some stimulant to this water, for example, "Epin", "Zircon", "Ribav-Extra" (1 drop of stimulator per 100 ml of water). Soaked seeds are left for 1-2 days in a warm place.
After soaking, you can gently cut the seed coat.
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