Philodendron melanochrysum - Black Gold Philodendron leaves are scarlet tinge shaded with brown when young, become bright velvety green when mature.
Philodendron melanochrysum also called as Black Gold Philodendron, Philodendron andreanum, Philodendron grandidens, is a species of the genus Philodendron. This species was described by Jean Jules Linden and Édouard François André in 1873.
DESCRIPTION OF PHILODENDRON MELANOCHRYSUM - BLACK GOLD PHILODENDRON
Philodendron melanochrysum is native to Colombia. It is found growing in the wet Andean foothills of Colombia at elevations of approximately 500 meters above sea level in the provinces of Chocó and Antioquia but widely cultivated elsewhere as an ornamental.
It is an evergreen climbing aroid with scandent, terete, slender stem and 6-10 cm long internodes. The leaves are oblong or ovate-oblong, rather long-obliquely acuminate apex, cordate base, 15-18 cm long, 10-12 cm wide (longer and wider in ideal conditions), dark green above, somewhat paler below with pale green veins. The leaves of young plants are of a decided scarlet tinge shaded with brown, when a little older they become a bronzy red-brown before finally changing to the normal bright velvety green of the mature leaves. The petioles are rather robust, slightly sulcate on the upper side, 9-12 cm long, green.
Black Gold Philodendron blooms from the inflorescences that are formed by a spathe and spadix and is the reproductive portion of any aroid. The flowers are unisexual; female flowers cover the lower one sixth of the spadix, male flowers are positioned on the upper two thirds of the spadix, and the remaining portion inbetween is comprised of sterile male flowers. All parts of plant contain calcium oxalate crystals, an irritant to the mouth and esophagus.
PHILODENDRON MELANOCHRYSUM - BLACK GOLD PHILODENDRON CARE AND CULTURE
Cultural information should only be used as a guide, and should be to be adapted to suit you. Your physical location; where you grow your plants, how much time you have to devote to their care, and many other factors, will need to be taken into account. Only then can you decide on the cultural methods that best suit you and your plants.
Light:
Philodendron melanochrysum grows best in bright and indirect sunlight. Exposure to the sunlight can causes a yellowish color in the leaves or a sunburn spot. Too little light can result in leggy growth with lots of space in between the leaves. Artificial light gives best results if natural light is not present. They can be very vigorous growers and need support to keep the stems from breaking. Provide a tree bark or strong, moss-covered support sunk into the pot for the aerial roots to attach to. Sphagnum moss wrapped around a wooden slat, secured with monofilament fishing line or nylon thread, will work well.
Rotate your plant periodically to ensure even growth on all sides and dust the leaves often so the plant can photosynthesize efficiently. When dusting the leaves, also take the opportunity to inspect the undersides and keep an eye out for pests.
Temperature:
Black Gold Philodendron grows well in normal to warm indoor temperatures 24-27ºC (75-80ºF). They cannot tolerate temperatures which drop below about 13ºC (55ºF). In mild, frost-free climates, the plant can be grown outside in shady spots. If grown outside, night temperatures down to around 15°C and day temperatures around 30°C are ideal.
Substrate and growing media:
Philodendron melanochrysum grows best in loose, well-drained soil which is rich high in organic matter. It also be grow in 100% sphagnum peat moss and mixtures such as peat-vermiculite or peat-perlite.
The plants benefit from repotting to a larger container when they become root bound and outgrow the original pot. A combination of half soil-based potting mixture and half leaf mould or coarse peat moss is used.
Move the plant into container one size larger only when their roots have completely filed the current one. This is done at any time of year except during the short rest period. After the long rest period the convenient pot size has been reach (probably about 25-30cm (10-12 inch)), an annual spring top-dressing with fresh potting mixture will help to keep the plat healthy. A container with drainage holes to prevent root rot is used. A cachepot is used if a decorative container is without drainage. It is necessary to cover the bottom of a cachepot with pebbles so as to keep the plant above the drainage water.
Watering:
Fertilizer:
Philodendron melanochrysum are considered heavy feeders. Regular feeding program with a nitrogen fertilizer will increase leaf size and produces a larger, healthier plant. Throughout the months while the plant is actively growing (from spring until fall) apply standard liquid fertiliser once every two weeks. It's a nice strategy to fertilize more frequently at half strength than to apply one strong dose. Plants which mainly grows in low-light conditions require less fertilization than actively-growing plants. Moist soil requires fertilizers to avoid injury to plant roots.
Pruning:
Use a sharp pruners or scissors to control the size and shape of the plant. You can remove entire leaves by cutting them off at the base of the leaf stem. You can also remove the lower leaves if you want to reveal the plant's stem. Always wear gloves when pruning and wash your hands and tools when finished. You don't want to get the sap in your eyes or mouth.
Pests and diseases:
No serious insect or disease problems is however reported. Watch for aphids, spider mites, mealy bugs and scale. Leaf spots may occur. Root rot can occur in overly moist soils. Small leaves or long spaces between leaves show that the plant need enough light to grow.
Propagation:
Cutting and layering are popular methods of Philodendron melanochrysum propagation. Try propagating them during the growing season. A small brown nubs are formed where the leaves meet the stem. These nubs, when in contact with soil or water, will grow roots. There are many ways to propagate this plant, the easiest being to cut a branch just below a root-nub and place it in water with a few pieces of horticultural charcoal to reduce the likelihood of rot. As soon the growth of new leaf takes place it is potted in the rich soil. Similarly it can also be propagated within its own pot by pinning vines at the root-nub to the soil with hairpins or bent wire. The root nub in contact with the soil will sprout new roots in a very short time. When the different parts of Philodendron species are rooted, the plant will greatly profited from misting several times a day.
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