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楼主 |
发表于 2007-1-19 14:15
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大葉蔓絨
Philodendron care
Most Philodendrons are native to the jungles of tropical America, and as such, prefer the medium light intensity they would have on the jungle floor. They will tolerate low light, but if there is too little light, the new leaves will develop smaller, and farther apart on the stem. On the other hand, direct sunlight will burn the foliage, and stunt the growth of the plant.
Keep the soil evenly moist, but allow it to dry out between waterings. Keep them slightly drier during the winter months, when the growth slows. Over watering will cause the leaves to turn yellow. Under watering will cause the leaves to turn brown and fall off. Feed your Philodendron in the spring and again in mid summer with a liquid house plant fertilizer.
The ideal temperature range is between 75 and 85 degrees F. during the day and in the 60's at night. They will survive for a short time in temperatures as low as 36 degree F.
Repotting Philodendrons
Philodendrons grow best when their roots are slightly cramped, (but not too cramped), so don't plant them in a pot which is too large. When the roots begin to compact into a tight ball, the plant should be repotted into a planter which is 2-3 inches larger. Repotting should be done in late winter or spring, before the plant begins active growth.
Good drainage is essential, so if there are no drainage holes, be sure to fill the bottom of the pot with clean stones or broken crockery. Use a good commercial potting soil or a mixture consisting of equal parts of loam, sand and peat moss, with some chopped charcoal and broken crocks or brick added. Newly potted plants need to be carefully watered during the first month or so, to be certain that the roots don't dry out completely. Never allow the soil to become saturated or soggy. It's especially beneficial to spray their leaves of newly planted Philodendrons two or three times a day.
It is a good idea to add a moss stake or other type of pole to the planter at the time of repotting if this is a climbing or vining type of Philodendron. As the plant grows, it will need some sort of support. The are several types of plant poles available at garden centers.
Some types of Philodendrons produce aerial roots which will cling to whatever support they find. These roots should NOT be cut off completely, but they can be trimmed back if they become too long, or die. It is best to attach these roots to the support pole, or lead them back to the pot where they may grow into the soil.
Philodendrons will tolerate the level of humidity found in most homes, but high humidity promotes lush growth and shiny foliage, so it is a good idea to mist the plant regularly. Wash the leaves regularly to prevent the pores from becoming plugged with dust.
Propagation is by stem cuttings, or air layering, or by offsets, depending on the type of philodendron grown.
Pieces of stem that contain at least two joints can be inserted as cuttings in pots of sandy soil or in a mixture of sand and peat moss. The pots should be kept at 70-75 degrees F., and shaded from direct sun until they are well rooted.
Trailing varieties will often root at any point where the stem comes in contact with the soil. Pin the stem securely onto the soil in a separate pot with a hairpin or bent wire. It will be rooted in 4-8 weeks, and you may then sever the new plant from the parent.
Offsets are new plants which emerge from the base of the plant or from the roots themselves. Once an offset has a sufficient root system to support itself, it can be removed from the parent, by cutting it off with a sharp clean knife. |
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狗仔卡
发表于 2007-1-19 14:05
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