Wednesday , November 22 2017
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Citron

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Citron is very tender and extremely sensitive, maybe the least resistant to winter temperatures of all the Citrus fruits because of its continuous growth tendency, with almost no dormancy, blooming several times a year. The color varies from green, when unripe, to a yellow-orange when overripe. The citron would never fall off the tree and could reach 4-5 kg if not picked off timely or even early. However, they should be picked off before the winter as the branches might break, or bend to the ground.

Grow Citron in a bright place, with direct sunlight. As they can’t stand temperatures below zero they should be grown in cold green houses or at least in a sheltered place. When all risks of late freezing have gone by, place them outside or remove the protections. Mulch the soil around the young plants, using straw or dry leaves. Young plants usually are provided with stakes, so that they can develop erect.

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Citron need a soft and light soil, with good aeration and very well drained. Towards the end of the winter, or the beginning of the spring, add some mature manure or earthworm humus to the soil near the trunk. Water rarely, about once every 4-5 weeks with 1-2 buckets of water, keeping the soil dry for a few days before watering again.

Citron trees are propagated from cuttings taken from branches of 2-4 years old and quickly buried deeply in soil without defoliation. For quicker growth, the Citron may be budded onto rough lemon, grapefruit, sour orange or sweet orange but the fruits do not attain the size of those produced from cuttings, and the citron tends to overgrow the rootstock.

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Sweet Orange

Sweet Orange (Citrus sinensis) is a compact, evergreen tree, grown for its edible fruits. It  can grow up to 9 m tall and 7.5 m wide and might tolerate some light frosts. It is probably the most popular of all citrus trees. The leaves are elliptical to oblong-ovate, up to 10 cm long, with narrowly-winged petioles. The flowers are white, sweetly scented, hermaphrodite - have both male and female organs and appear in clusters at the tips of the branches. The plant is self-fertile. The fruits are round or ovoid, orange to reddish-orange in color. The juicy flesh is orange and fairly acid and can contain few or many seeds.

If you live in a cold area you can grow sweet orange trees in a greenhouse or indoors, as they make excellent container plants because their size can be easily controlled with container size and selective pruning.

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