Quercus ilex is an evergreen oak tree native to the Mediterranean region. It is the only member of the genus quercus to be found in that area. The tree is also known as ilex oak, holm oak, or holly oak. quercus ilex is a large tree, growing to 20 m (66 ft) tall and with a trunk diameter of up to 1.5 m (4.9 ft). The leaves are spirally arranged, 1025 cm (410 in) long and 23 cm (0.791.18 in) broad, with sharp spiny-toothed margins. The flowers are catkins, produced in spring. The fruit is a acorn, 23 cm (0.791.18 in) long and 12 cm (0.390.79 in) broad, with a cupule.
Related plant:
Quercus Macrocarpa
About soil condition, ilex crenata grow in the garden the best in well-drained, acidic to neutral soil that is rich in organic matter. The soil should be moist but not wet. Ilex crenata can also tolerate drought and salt once established.
Similar to other types of oak trees, the holm oak tree is known to be very sun-loving. In fact, it is known to be one of the most sun-loving oak trees out there. This means that it requires quite a bit of sun in order to thrive. If you are thinking of planting a holm oak tree, make sure that you have a spot in your yard that gets plenty of sun throughout the day.
The temperature conditions that are best for Quercus ilex growth are those that are cool and moist. This tree does not tolerate heat or drought well and will not thrive in these conditions. The ideal temperature range for this tree is between 50 and 70 degrees Fahrenheit.
Ideal humidity condition for this plant is 50-70%. Allow the top few inches of the soil to dry out in between watering. These trees are drought tolerant once they are established, but will require more water when they are first planted.
Mentioning fertilizer, this plant requires very little fertilizer to do well. In fact, over-fertilization can actually harm this plant. When it comes to roots, the roots of the holm oak are quite strong and can cause damage to sidewalks and driveways if not kept in check.
Pruning is an important aspect of caring for a Quercus ilex, also known as a holly oak. This evergreen tree can grow to be quite large, so pruning is necessary to keep it looking its best. When pruning, be sure to remove any dead or diseased branches. It is also a good idea to thin out the tree to allow more sunlight and air to reach the inner branches.
Propagation of Quercus ilex can be achieved through both sexual and asexual methods. Sexual propagation, or planting seeds, is the more common method and can be done by either collecting acorns from the wild or purchasing them from a nursery. Acorns should be planted in the fall, as they need a period of cold stratification in order to break dormancy. Asexual propagation, or taking cuttings, can be done with both hardwood and softwood cuttings. Hardwood cuttings should be taken from the current year's growth, while softwood cuttings should be taken from the current year's new growth. Cuttings should be taken from healthy, disease-free plants and should be planted in a well-drained rooting medium.
Usually, the plant growth rate is fast during the first and second year. After that, the growth slows down considerably, with an average mature tree growing only about 10-15 cm (4-6 in) per year. This plant is drought tolerant and can live on very little water once it is established.
Common problems for this kind of plant are drought, waterlogging, and frost. Drought stress can cause the leaves to turn brown and drop off, while waterlogging can cause the roots to rot. Frost can damage the leaves and buds, causing them to become blackened and distorted.
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Quercus ilex (Evergreen Oak, Holly Oak, Holm Oak)
Quercus ilex - Wikipedia
Biomass Equations for Quercus ilex L. in the Montseny Massif ...