Advice 1: As blooms the oak

Flowering oak notice a few. The fact that this tree is small, inconspicuous, greenish flowers that are difficult to spot among the green foliage. You need to very carefully look closely to see them.
As blooms the oak

Male and female flowers of oak

The oak is 2 types of flowers: male, containing only stamens, and the female consisting of a naked pistil. Male flowers are collected in a kind of inflorescence hanging from the branches like earrings. They are somewhat similar on the fringe of the carpet, not solid, but intermittent, with small openings. 2 or 3 female flowers sit on a special short stalks. They resemble green beans with a red top just a little bigger than a pinhead. It is from female flowers then grow acorns.

Oak flowering starts in late spring. At this time, he's just starting to bloom small yellowish-green leaves. With it comes the earrings, however, due to the same color they blend in with the foliage. In forming the shackle the flowers ripen the pollen, which then spills out and is carried by the wind. Soon the catkins wither and fall to the ground, as their biological function ends here.

Even harder to see individual female flowers. Perhaps the easiest way to notice their short bright red antennae that serve to catch wind-blown pollen. Towards autumn a tiny green flower turns into a large oval acorn. From the bottom it is surrounded by the Cup or Cupule, which after its fall is still some time left on the tree.

Fruiting oak

Falling to the ground in late autumn, the acorns overwinter under a layer of snow that protects them from frost and helps retain moisture. In the spring they germinate, giving life to young people by Dubkov. In the artificial breeding of oaks acorns sown in the spring. To save seed, acorns or buried for the winter in specially prepared pits, or stored in tightly closed baskets that are lowered to the river bottom. The fact is that acorns are very naughty and need to preserve moisture and warmth. In addition, they are one of the favorite treats for mice. Yes, and rot. So in order to grow oaks, you need to exercise considerable ingenuity.

Oaks growing in natural conditions of Central Russia, fruit not every year, but only once in 4-7 years. The fact is that the process of fruiting wood requires a great expenditure of energy. Because of large and heavy acorns need lots of nutrients. So to bear fruit annually, the tree is just not strong enough.

Advice 2 : How to look like the flowers of the oak

The oak is a symbol of wisdom, strength and power. In principle, biology as a science agree with this: the oaks are reaching an enormous size both in length and in width. In Central Russia there are no other trees, exceeding in size of these giants. But despite its impressive size, the flowers of these trees are quite small and nondescript.
How to look like the flowers of the oak

The conditions for the flowering oaks

The oak is a flowering tree, but the appearance of flowers on it – not a frequent occurrence. In nature, the first flowers bloom on these trees when they reach the age of twenty, and some of the oaks in General can bloom only for fifty years. And the tree blooms rather late: while the birch trees have already dressed up in its spring foliage, oak trees barely starting to turn green. Often they are bothered by the cold, which so love to come back at this time of year (April and may).

Noticed that the oak blooms only when the leaves had still small: at this time, the trees themselves seem to be dressed in the finest green lace, which can not fail to please the eye. A typical month for their flowering is may, but it all depends on the weather: if cold in may, flowering oaks is postponed until better times. It is wrong that the flowers of the tree must be beautiful and, most importantly, large. The flowers of this tree are small and inconspicuous.

It is worth noting that in Central Russia the oaks do not bear fruit abundantly, as it happens in other countries with warm or temperate climate. In Russia, however, most of these trees bear fruit once in 5-7 years. Despite all his power and strength, fruits for these giants is a very burdensome task, requiring from them high costs: they are large and heavy acorns are in need of certain nutrients.

Pistillate and staminate inflorescences oaks

Oak, like other plants, has both staminate and pistillate inflorescences. Staminate flowers – male, collected in a kind of inflorescence, resembling a greenish-yellow catkins hanging from the branches. They form large chunks, virtually no different from the young leaves.

Pistillate flowers are female. The oak is very difficult, and sometimes impossible. It's pretty little flowers are the size of a pinhead. Externally, the female flower resembles a barely noticeable greenish seed with crimson red tip. They can be for one, and two or three flowers at the ends of special thin stems. It is from these female flowers in autumn the acorns are formed.

These small flowers of oak trees are exposed to a rather complex development with a very early spring to early autumn. Once they bloom, the female flower starts the growth of a small wrapper having a bowl-like shape, and after that appear the acorns. At the end of autumn ripe acorns begin to fall profusely on the ground. Their calyxes remain on the autumn tree. It should be noted that the acorn is not the oak seeds, and fruits. This is evidenced by their appearance of the pistil of a flower.

Advice 3 : How many years can grow oak

The oak is a symbol of courage, fortitude, a kind of superpower. Since ancient times, this tree, covered with legends and myths, was worshipped by many peoples, including the Slavs. The tree is really a giant among others. It reaches 30 meters in height, there are instances of higher – up to 40-50 meters. No wonder when I hear about something durable and reliable, carry out a comparison with the oak.
How many years can grow oak
A mighty tree called Quercus belongs to the genus of deciduous trees belonging to the Fagaceae family. Sheets is simple, lobed, toothed, and sometimes single cut, shape and size of which depends on subspecies. The tree blooms in April-may, its flowers are quite small and inconspicuous. Fruits acorns. Moreover, before beginning to bear fruit trees growing on open area. The oak is quite unpretentious, although light, undemanding to the soil, drought-resistant and winter-hardy.

Shaping wood

The species composition of the oak is very wide. In temperate, subtropical and tropical zones of the Northern hemisphere, there are about 450 species of this beautiful representative of the plant world. Of which in Russia is slightly less than 20, the Caucasus and the far East – more than 40.

Propagated tree acorns. It is important to note that germination of the acorn is saved only until the next spring. Let sprout, young shoot is in no hurry to ubiratsya in force, and for the first year reaches a height of not more than 10 cm. Growth over the next few years is even slower. But in 10 years the annual growth of the tree becomes more visible – up to 35 centimeters. Such a small increase kompensiruet duration of growth of up to 120, or even 200 years. Moreover, the growth after 80 years is slowing slightly but not stopping. During this period, the most intensively growing crown and thickens the trunk. When growth in height ceases, crown and stem remains are absorbed into force.

Reproduction and regeneration

The first fruits of the oak begins to make quite late, already in the 40 – 60 years. And grew up in a dense forest the tree starts to bear fruit later.

Felled or cut down by the oak quite well resumed the young shoots, which grows from the stump. Most of the residents of the oaks of this origin. Such trees different from growing up from an acorn in their appearance. They are below, and the trunks at the base are curved.

If we talk about the longevity of oak, it is quite significant – as much as 500 years. This is not the limit. In Ukraine, not far from Zaparozhe grows giant, which has 800 years. Russian bogatyrs-centenarians in the grove in Kolomenskoye – peers of the capital. It's hard to imagine that they saw these giants in my lifetime, what stories have passed them by.
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