绿手指
首页
动态
文章
百科
花园
设置
简体中文
已关注
+
关注
花园 (4)
动态 (4985)
Miss Chen
2017年08月11日
Miss Chen
The orchid family (Orchidaceae) includes approximately 600 genera and about 30,000 natural species worldwide. Orchids thrive in U.S. Department of Agriculture plant hardiness zones 1 through 13, depending on the species, but most houseplants are tropical orchids. These exotic-looking plants have earned a reputation as being difficult to grow, but many are surprisingly easy to care for. Lighting and watering needs vary, but most orchids require fertilizer high in both potassium and calcium. Making your own orchid fertilizer from common household items is quick and easy.
Eggshells and Chicken Bones In two vital ways, chickens provide orchids with the nutrients they need to grow. Both eggshells and chicken bones contain high amounts of the calcium and potassium that orchids crave. Wash and dry eggshells and crush them with a mortar and pestle to create fertilizer for orchids. Dried chicken bones require the same technique, but are a little more difficult to process. Once you've created the crushed mixture, sprinkle it over the orchid's bark mixture. Don’t Throw Out Cooking Water The cooking water from both potatoes and rice provides valuable nutrients to orchids. While rice water provides a good source of vitamin B, potato water contains calcium and potassium. Save the water from cooking potatoes and rice and store it in the fridge. Apply the water to orchids every two weeks. Milk, Molasses and Epsom Salt Ordinary cow's milk provides a good source of protein for your orchids, but dilute it first -- 1 part milk to 4 parts water -- or get into the habit of rinsing out your milk carton with water and using it to water your orchids every two weeks. Molasses gives your orchids a boost of potassium. Mix a teaspoon of molasses to a quart or two of water and use it when you water your orchids. Mixing a teaspoon of Epsom salt in two quarts of water gives your orchids a boost of magnesium – but use caution not to use scented Epsom salt sold as foot wash. Look for Epsom salt in the gardening section of your home improvement center. Oak Leaves and Teabags Oak leaves and teabags, which are high in nitrogen can be used as natural fertilizer to boost orchid growth. Oak leaves need to be brewed -- 1 part water to 2 parts leaves -- for about two weeks in the sun to create liquid fertilizer. Water your orchids with the brewed oak-leaf tea once a month. Open teabags and sprinkle the contents on the soil of your orchid plants once a month during the growing season. Easy Does It Orchids are light feeders and do not require frequent fertilizer. While homemade orchid fertilizers provide them with the nutrients they need to thrive, heavy applications may harm your orchids. Try one or two remedies at a time and use the health of your orchids as your guide to fertilizer application. Signs of over-fertilization include a white crust on top of the bark, leaf tips dying and roots that turn black. Always flush your pot monthly with water to remove the build up of salt from fertilizers. Homemade fertilizers may not give your orchid all the NPK nutrients it requires for proper health. If signs of poor health occur that are not from over-fertilizing, supplement with a water-soluble 20-20-20 blend, mixed at one teaspoon per gallon of water and apply monthly.
0
0
文章
Miss Chen
2017年08月11日
Miss Chen
Orchids have a reputation for being difficult and laborious to care for, but do not let that discourage you from keeping the plants in your home or greenhouse. Most of the orchids on the mainstream market today are hybrid varieties, bred specifically for beauty combined with ease of care.
Location If you do not have a greenhouse or a conservatory, place orchids on a windowsill. If you see that the leaves are reddening at the edges or have become pale and yellow, the orchid is getting too much light. Move it to a shadier spot. You will know when the level of light is good because the orchid's leaves will stay glossy and green. During the summer months, keep orchids outside in indirect sun. Remember to water them regularly, and occasionally feed them with an orchid fertilizer. Moisture Orchids thrive in a humid atmosphere and they must have excellent ventilation around their roots. Never re-pot your orchid in regular soil---you need a special orchid mix and special pots with air vents. If you live in a dry climate, it will help to sit your orchids on a tray of pebbles. Keep a shallow layer of water around the pebbles, but make sure the orchid's roots are never submerged. The water moistens the air around the orchid. To replicate humid conditions, spritz the orchid with water regularly. Temperature
Orchids generally can not tolerate temperatures lower than 50 degrees. If your orchids are kept outside during warmer months, wait until nighttime temperatures have dropped into the 50s, as the colder air promotes the growth of new stems and blooms. Because orchids thrive in temperatures up to around 85 degrees, in most climates it is unlikely to become too hot for them indoors. When temperatures are high, increase the amount and frequency of watering. In hot climates, look for heat-tolerant orchids like Phalaenopsis and Dendrobium.
0
0
文章
Miss Chen
2017年08月11日
Miss Chen
Orchids are becoming easier to find and cheaper to buy. It is not uncommon to find them now in grocery stores and garden centers ready to take home in full bloom. After you bring it home, follow some basic steps to keep the orchid alive and healthy in your home environment.
Step 1 Place the orchid in a room with bright filtered light. If close to a window, close the curtains when the light comes in on the plant or move it to a different spot. Direct sunlight can cause damage, but inadequate light is the most common reason orchids fail to bloom. Orchids need about 10 to 15 hours of light per day, which can also be from an artificial light source. Move farther from windows in hotter summer and colder winter days. Turn the pot one-quarter turn at each watering to balance light and growth. Step 2 Maintain the temperature in a range between 60 and 80 degrees Fahrenheit. The temperatures that are comfortable for people in a home are also good for orchids. Place the pot where it will have good ventilation but no cold drafts. Be aware of drafts from doors in the winter and move the plant to a more protected spot if needed. Don't keep it too warm in winter around heaters. Orchids prefer 60 F in winter and need a rest. Step 3 Water the orchid with distilled or rain water. Orchids don't do well with hard water and minerals will build up on the potting medium. To be extra sure about purity of water, it can be boiled to sterilize and kill any fungal or bacterial contaminants. Water once per week. Touch the growing medium to see if it feels moist and water if dry. Let water drain through and out of the pot. When the orchid is blooming and actively growing, the pot can be immersed in the water for 30 minutes to allow the bark to soak up more water and then drain well. In the summer, this would be good at every other week waterings opposite feedings. Step 4 Apply a balanced liquid all-purpose fertilizer at one-half the strength suggested on the label. Orchids growing in bark should receive a fertilizer higher in nitrogen, such as 30-10-10. Fertilize during one or two of the watering days per month. Fertilizer formulas are also available specifically for growing orchids. Orchids are epiphytic and get nutrients from the air and watering. The use of lower-strength fertilizer and allowing it to drain well prevents the buildup of salts and minerals in the medium.
Step 5 Adjust the humidity to keep it in the range of 60 to 70 percent around the plant. This can be done by placing a bowl of water next to the plant or setting the pot on a dish with water and pebbles inside. Keep the pot and aerial roots out of standing water. Green florists foam is a good choice to put in the bottom of a decorator pot and then set the orchid in its own pot on top. The foam will absorb and evaporate the excess water around the plant without standing stagnant water. Step 6 Use a lightweight soilless potting medium that is able to hold moisture. One suggested mix is one part peat moss, one part charcoal and two parts of 1/2-inch pine bark. Many garden centers and nurseries sell orchid potting medium mixes and mesh baskets for planting orchids. A mesh pot or basket provides ventilation to prevent rot. Allow the aerial roots to hang outside the pot to prevent rot.
0
0
文章
Miss Chen
2017年08月11日
Miss Chen
Orchids are considered one of the most enigmatic plants and can be intimidating to grow at home. Consisting of single blooms on a single stalk, the delicate flower is a sight to behold. Once the petals drop, you are left with a lonely, empty stem. With consistent care, it is possible to encourage the plant to flower again.
Immediately After Blooming When the last flower drops from your orchid plant, it is time to begin a care and maintenance routine that will help your plant bloom again. Begin by trimming the spent stalk back by half. Cut with a clean, sharp blade and seal the cut with melted wax to prevent bacterial infection. Encouraging Rebloom
The plant will typically send out new growth near the cut site. Continue your watering and fertilizing schedule to encourage rebloom. Most orchids grown in the home should be watered every 5 to 12 days, depending on the medium it is grown in and the current season. Orchids typically fall into one of three categories for watering needs: those that require consistently moist (but not soggy) soil; those that prefer moist soil but should dry out between watering; and those that perform best when the soil is kept nearly dry. Check the packaging included when you purchased your orchid to determine which watering schedule to follow. Fertilizer should be applied once per month. Inadequate fertilization can stunt growth and affect blooms. Fertilizing too often can burn the roots and leaves. Keep the plant in a location that receives strong but indirect light; a south-facing window is ideal. Monitor leaf color to determine if your orchid is receiving the proper amount of light. A plant receiving too little light will have dark green leaves, while one receiving too much light will present reddish-green leaves. Ideal light conditions will cause bright green leaves to appear. Be consistent in your care routine and patient with your orchid. Orchids are notoriously slow-growing and the rebloom may take place up to one year after the new growth appears.
1
0
文章
Miss Chen
2017年08月11日
Miss Chen
The ghost orchid is so rare that it has been put on the list of threatened and endangered plants in Florida, one of the few places where it grows. The number of ghost orchids there is around 1,200, and it is illegal to pick any of them from the wild. Since you can't pick them yourself, you're going to need how to buy them, and how to do so within the law.
Step 1 Determine whether you are up to the challenge of even owning a ghost orchid in the first place. The reason that ghost orchids are so rare in the wild is because they have such a low survival rate--and they have an even lower survival rate in captivity. You're going to need just the right temperature, just the right care, and even then, most ghost orchids will die before growing to their full size. Step 2 Find a nursery or garden center that sells ghost orchid seedlings. You will not be able to find full-grown ghost orchids to buy, since nurseries and garden centers take a profit risk trying to grow them. Most nurseries or garden centers that sell ghost orchid seedlings are located in Florida. Call your local nurseries or garden centers ahead of time, since these orchids are rare. Ask if the seedlings can be ordered if they are not in stock.
Step 3 Search for online orchid dealers if no nursery or garden center near you carries ghost orchid seedlings. Understand that buying online makes growing the ghost orchid even harder, since seedlings may be damaged during shipping. Step 4 Prepare an area to grow your ghost orchid before you buy it. The ghost orchid is not a plant you pop in the dirt to grow; it needs a special system designed for its growing needs.
0
0
文章
Miss Chen
2017年08月11日
Miss Chen
Ground orchids flower year round and with the right conditions, they grow for years. They are native to south eastern Asia and the Philippines and they do well in pots as well as flower beds. They are plants that communicate their needs with several visual indicators, so as long as you know what the signs are, taking care of your ground orchid is simple.
Step 1 Add some fertilizer and compost to the soil you want to plant with a spade. You can also add charcoal, which keeps the soil loose and can help the roots spread. Step 2 Separate some ground orchid plants from the main group, because ground orchids reproduce when you divide them. Plant them in separate pots or in the prepared ground three to six inches apart. They need space and loose soil for their roots to spread out. Step 3 Water your ground orchid every five to twelve days, depending on the humidity in the environment. Allow the roots to dry out completely between waterings, or you risk killing them. Some orchids differ from ground orchids here and need their roots kept moist. Do not let the leaves on an orchid stay wet, or the plant may rot. Dry them with a cotton ball or tissue. Step 4 Keep your ground orchid in low-light or somewhat shady areas. If you have it in a pot indoors, put it in a window behind a curtain. In a flower bed, you might want to construct a trellis over your orchids to shade them and keep heavy rainfall off of them. If orchids get too much light, their leaves shade red. With too little light they turn dark green. You want bright green leaves on your orchids.
Step 5 Deadhead your ground orchids by cutting the stems with flowers that have finished blooming and now wilt. This helps the plant continue to bloom. Check for dead or dying flowers every few days. If your plant stops blooming, cut the stem at a node or knob below the flower with gardening shears. If it is a really young plant, cut it near the ground, but it might take up to a year before it blooms again.
0
0
文章
Miss Chen
2017年08月11日
Miss Chen
Orchids are very beautiful and delicate flowers, but they can be difficult to grow because they are temperamental by nature. They require a loose potting material to grow properly and stay upright. There are premixed varieties of potting materials for orchids, but you can learn make your own if you want to save a bit of money and customize your potting to your watering habits. Once you have learned the basic idea, you can re-create it in any amount you like to keep it on hand or plant several orchids with one batch of potting material mix.
Mixtures If you prefer to mix a few types of potting media, use charcoal, fir bark and peat moss. All three are loose materials that will allow for a very small amount of water storage for the orchid, but mainly they will hold the plant in place without "packing" it in too tightly. Use 1 cup of both medium-grade charcoal and peat moss mixed with 6 cups of fir bark. Mix the materials together loosely with your hands, and gently pour it into the pot. Do not pack the materials down around the plant. Simply place them in a way to hold the plant steady. Single Material Potting Media Several types of potting mediums work well for orchids. The difference between them is water retention. If you frequently forget to water your plants, or if you are worried about dryness for any reason, use peat moss or fir bark chips because they hold on to more moisture than other potting mediums. If you are more worried about overwatering than drying, use a medium like clay pellets or rock wool because they dry quickly and will keep excess water away from the plant. If you are not worried about either overwatering or underwatering, use any of the potting mixtures you choose. Try a few and see which one you like best.
The most common mediums for orchids, besides those already listed, are fir bark chips, redwood bark chips, osmunda fiber, tree fern fiber, coconut fiber, coconut chips, sifted perlite, granular charcoal and cork. Use a combination of any of the mediums you like, or use them individually. The main goals for potting orchids are proper irrigation, water retention control, and support.
0
0
文章
Miss Chen
2017年08月11日
Miss Chen
Orchids are part of a plant group with over 30,000 species. Most orchids can rebloom several times after the blossoms dry up and die off. Some species require different care after the blooms die, but good general orchid care will help ensure your flower has the opportunity to rebloom.
Cutting Some orchids require you to cut them to encourage reblooming. Certain species should be cut with a sterile tool just above where the stem grows out of the leaf and bulb. Other orchid species have black lines on the lower part of the stem that you should cut above. Other species do not require any cutting. Check with a greenhouse or garden store if you need help identifying your orchid's species or need specific cutting instructions. If you are concerned that your stem will get infected, you can rub a bit of cinnamon or rubbing alcohol on the freshly cut portion to keep bacteria out. Repotting After your orchid blooms die, you may need to repot your plant. Orchids should stay in the same potting soil for only two or three years at the most. Many orchids' roots are extremely sensitive, so use caution when repotting to avoid disturbing the roots too much. Plastic and clay pots are both suitable for orchids, but clay dries out quicker. Orchids in clay pots will require more frequent watering. Make sure your pot has adequate drainage holes to get rid of excess water. Repot your orchid in a premade orchid soil mix or make your own from osmunda fiber, soil, peat moss and shredded bark.
Watering Overwatering your orchid can lead to root rot and quicker decay of the soil and compost. Use water the same temperature as the atmosphere around the orchid. Do not leave the soil soggy. Some orchid species require consistently moist soil, while others should be allowed to dry out completely before watering them again. Yellow or crinkled leaves are signs of overwatering, but these can take months to appear. Black or dark brown mushy roots are rotted. Remove these sections and repot your orchid. Light and Temperature Orchids thrive in humid environments with daytime temperatures between 65 and 80 degrees Fahrenheit. Nighttime temperatures 10 to 15 degrees cooler than the average daytime temperature will help stimulate new growth and blooms. Increase the humidity by placing your orchid pot on a tray with moist pebbles and mist your flowers with warm water each morning. Bright light will help your orchid rebloom after the blooms die. Allow your plant to get eight to ten hours of sunlight each day or use 40-watt florescent lights placed about 12 inches above the plant. Fertilizing Do not fertilize your orchids while they are dormant. During the blooming period, use a half-strength solution of a balanced 10-10-10 fertilizer every two weeks. If you grow your orchids in soil with a lot of tree bark, use a half-strength mixture of 30-10-10 every two weeks since tree bark does not contain the nutrients orchids need to thrive.
0
0
文章
Miss Chen
2017年08月11日
Miss Chen
Despite their upscale reputation, orchids can be as easy to grow as more plebian plants. Among the varieties recommended for novices are the moth orchid (Phalaenopsis spp.), dancing ladies orchid (Oncidium spp. ), slipper orchid (Paphiopedilum spp.), and florist's orchid (Cattleya spp.). The first type is perennial in U.S. Department of Agriculture plant hardiness zones 11 to 12 and the second in USDA zones 10 to 11, while the hardiness of the latter two varies according to species from USDA zones 10 to 12. Most orchids are grown as potted house plants or greenhouse plants. Windows and Warmth Moth and slipper orchids will burn if given too much sunlight. They should occupy an east- or west-facing windowsill where they receive only a few hours of early morning or late afternoon rays or bright, indirect light. Dancing ladies and florist's orchids require stronger illumination. Place them on a sunny south-facing windowsill with a sheer curtain between them and the glass. Orchids will also grow happily under two shop lights, hung side by side 6 to 12 inches above the plants' leaves and timed to run for 12 to 16 hours every day. Position the most light-loving plants under the center of the four fluorescent tubes and the others closer to the ends. Orchids prefer a 10-degree drop in night-time temperatures, which you can provide for part of the year by keeping them outdoors -- on a roofed porch or under the high shade of a tree -- during summer.
Soil and Sustenance Because most of these orchids grow on trees in their native habitats, they should be potted in orchid bark rather than soil. The exception is the semi-terrestrial slipper orchid, which needs a constantly damp medium, so grow it in an orchid mix which combines both compost and bark. For plants potted solely in bark, apply a high-nitrogen orchid plant food such as 30-10-10 once every two weeks during spring and summer, mixing 1/4 teaspoon of the plant food crystals with 1 gallon of water. For those whose mix contains soil, opt for a balanced 20-20-20 plant food every two weeks, using 1/2 teaspoon per gallon of water. In the fall, switch to a 10-30-20 plant food for all types, at the 1/2 teaspoon per gallon rate, to encourage bud production. Reduce the feedings to once a month at the same rate during the winter. H2O and Humidity With the exception of the slipper types, whose soil should be kept lightly moist, the orchids should be allowed to almost dry out before you water them again. They usually won't need to be watered more than twice a week during the summer months, perhaps once a week during the winter. If you grow your orchids in cache pots -- outer pots which conceal the inner ones -- be sure to empty the excess water out of those pots or the plants' roots will rot. To help provide the high humidity orchids prefer, place trays of gravel beneath the pots, but always keep the water level in those trays below the surface of the gravel.
Pests and Pathogens These orchids can suffer from aphids, scale insects, spider mites, and thrips, which give the appearance respectively of green lice, brown bumps, mottled leaves with webbing, and white streaks on the flowers. Spray the plants thoroughly in the early morning with insecticidal soap, using about 1 1/4 tablespoons of the soap solution per quart of water. Repeat the treatment two days later for aphids or one week later for other insects. If kept too wet and/or cold, orchids can also suffer from black or brown blotches or rot on the foliage. Use pruning shears or a pruning knife to cut out the affected areas, dipping the blade or blades between cuts in a mix of 1 part rubbing alcohol and 1 part water, and dust the cut edges with an anti-fungal such as powdered cinnamon.
0
0
文章
Miss Chen
2017年08月11日
Miss Chen
Native to tropical Asia, the bamboo orchid (Arundina graminifolia or Arundina barbusifolia) grows to 8 feet with reedy stems and evergreen, grass-like leaves up to 1-foot long. Its 2- to 3-inch-wide flowers appear in clusters at the stems' tips in summer and autumn, each lasting for about three days. Those fragrant blooms vary in color from white to pinkish mauve with a darker purple lip. The Missouri Botanical Garden lists the bamboo orchid as perennial only in U.S. Department of Agriculture plant hardiness zones 11 through 12, but other sources consider it hardy as far north as USDA zone 9.
Indoor Position Due to its large size and preference for high humidity, this orchid generally performs better outdoors than indoors. If you wish to try it as a houseplant, a clump – which usually contains three to five canes – needs a pot at least 12 inches in diameter. The bamboo orchid isn't picky about its medium and can be grown in regular potting soil, sphagnum moss or a more typical orchid mix of 1 part organic potting soil, 1 part coarse orchid bark and 1 part sand. The bamboo orchid prefers full sun or at least partial sun, so position it on or near a south-facing windowsill where it receives temperatures between 60 and 80 degrees Fahrenheit. Keep the air moist around it by placing it in a humid room, such as a bathroom, or setting it atop a humidity tray. The plant is seldom bothered by pests or diseases. Indoor Provisions Water the orchid frequently enough that its medium or mix never dries out completely. Fertilize it once a week from spring to fall with a 20-20-20 plant food, mixing 1/4 teaspoon of the crystals into 1 gallon of water. Always follow label instructions. If possible, move the plant outdoors during the summer, setting it in shade at first, and gradually accustoming it to full sun. Outdoor Position If you wish to grow the bamboo orchid outdoors, place it in a protected, raised bed in full or partial sun. That bed should be filled with a humus-rich soil, which is about 2 parts compost, 1 part topsoil and 1 part coarse sand. Space the plants 1 foot apart in that bed and mulch it with 3 inches of shredded bark -- to keep the soil moist -- but don't allow the mulch to touch the plant's stems.
Outdoor Provisions Water the bed about once every three days when there is no rain, or however often is necessary to prevent the soil from drying out. Feed the orchids once every two months during spring and summer by pulling back the mulch and sprinkling the pellets of an organic fertilizer, such as 5-5-5 around the bases of the plants, using 1 cup for each 20 square feet of bed. When all the buds on a cane have bloomed, snip that cane off near soil level with sterilized pruning tools.
0
0
文章
397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412
相关用户
筒叶花月
筒叶花月
来自： 斑目
玉露
玉露
来自： 安静的种花人
玉露
玉露
来自： 石头剪子布
天津
玉露
玉露
来自： 绿野鱼悅
温州市
筒叶花月
筒叶花月
来自： Heidi Liu
玉露
玉露
来自： 一万吨少女心
筒叶花月
筒叶花月
来自： KiddaHoo
郑州
保利安娜
保利安娜
来自： 辣木姐--璐颖
玉露
玉露
来自： 倾心
福州
玉露
玉露
来自： 小欢喜
广州
举报 反馈

您有什么意见或建议，欢迎给我们留言。

请输入内容
提交
取消
设置
VIP
退出登录
关闭
分享

分享好文，绿手指（GFinger）养花助手见证你的成长。

关闭
请前往电脑端操作

请前往电脑端操作

关闭
转发
插入话题
提醒好友
发布
/
提交成功 提交失败 最大图片质量 成功 警告 啊哦！ 出了点小问题 转发成功 举报 转发 显示更多 _zh 文章 求助 动态 刚刚 回复 邀你一起尬聊！ 表情 添加图片 评论 仅支持 .JPG .JPEG .PNG .GIF 图片尺寸不得小于300*300px 最少上传一张图片 请输入内容