动态第959页 - 绿手指 - 养花技巧、花生病了怎么办、花园打理和设计

2017年08月13日

Grape ivy is one of the finest indoor vines a gardener can grow. It’s hardy, looks nice and springs back despite a great deal of neglect. Because of this, many people are surprised to hear about grape ivy plant problems, but they do suffer a few. Yellow leaves on grape ivy are by far the most common and can be caused by a couple of different mechanisms. Read on to learn more about grape ivy with yellow leaves.[图片]0Causes of Yellow Grape Ivy When your grape ivy is turning yellow, you may be really concerned that it won’t survive the ordeal – and you may be right. Although there’s not much that can get these hardy plants down, yellow leaves can be a sign of serious distress. It’s time to do a little detective work to find out what’s causing your plant’s problem. By far, the two most common causes of yellow leaves on grape ivy are spider mites and root rot. Both are treatable if caught early. Here’s what to watch for and what to do if you find it: Spider Mites. Spider mites leave a characteristic thin spider-like web on your plants, along with pin-sized yellow spots on leaves that aren’t fully affected yet. If you suspect spider mites, washing the plant thoroughly once a week and increasing the humidity around it can help keep them at bay. If they’re persistent, a miticide is in order. Apply it carefully, and per the package instructions.[图片]Root Rot. Root rot is the direct result of overwatering. In a plant like grape ivy, which prefers a dry soil, root rot can be a serious problem long before you realize. It can manifest in several ways, but yellow or wilting leaves are typical signs that your plant’s roots aren’t doing their job.[图片]Remove the plant from its pot and clean the dirt out of the root ball gently. If many of the roots are brown, black, smell terrible or appear dead, you’ve got a problem. Trim back all the sickly roots and repot your plant into a container that drains quickly. Make sure to use a fast-draining potting soil, such as a palm or cactus mix. Water the plant when the soil feels dry and never leave it standing in a saucer full of water.

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2017年08月13日

Golden trumpet vine is a common sight in gardens with year-round warmth and plenty of sun. These needs make growing Allamanda indoors ideal where there is good southern or western exposure. Even the northernmost gardener can enjoy an indoor Allamanda flowering vine. You may have to invest in a good plant light and turn up the thermostat, but it’s worth it to bring the rich yellow flowers and lovely formed foliage. Allamanda plant care is similar to most tropical houseplants and can be mastered with a few tricks.[图片]Golden Trumpet Flower Allamanda is native to northern South America. As such it requires high light, consistently warm temperatures and humidity of at least 50 percent. These conditions are hard to simulate in the average home without grow lights, humidifiers and heaters. Greenhouse conditions are often ideal for Allamanda plant care. Indoors, we tend to have less moisture in the air and sun doesn’t penetrate the interior for as many hours as the plant needs. You can overwinter the vine and bring it out into the bright rays of light in spring and summer. There golden trumpet houseplants can recharge and produce the amazing bright yellow 5-inch blooms characteristic of the Allamanda.[图片]Growing Allamanda Indoors It can be quite tricky to mimic the native growing conditions of golden trumpet plants as indoor specimens. Indoor Allamanda flowering vine needs structural support for the rambling stems. You can keep it pruned for a more compact plant. Good care of Allamanda golden trumpet starts with the planting medium. Use a potting soil with equal parts peat, compost and sand. Golden trumpet houseplants need four hours or more of direct bright sunlight. The container should be at least a gallon with drainage holes. An unglazed pot is best since it will promote evaporation of excess moisture. Place the pot on a saucer filled with pebbles and water. This will create a humid atmosphere which is required for a healthy Allamanda. You can also use a humidifier. Keep the plant away from drafty doors and windows and several feet away from a heater.[图片]Care of Allamanda Golden Trumpet Water deeply until the excess moisture runs out of the drainage holes but then wait until the top surface of the soil dries out before you irrigate again. Allamanda doesn’t like wet feet. Fertilize in spring through summer every two to three weeks with a good blooming plant food. Allow the plant to rest in winter. Suspend fertilizing in winter as part of good Allamanda plant care. Restart fertilizing in April and move the plant outside as soon as temperatures are above 60 F. (16 C.). Prune in early spring and cut stems back to pone to two nodes to promote tighter new growth. This plant is prone to spider mites and whiteflies, so watch carefully for these pests. At the first sign put the plant in the shower and hose off as many of the little guys as you can, then follow with daily applications of horticultural soap or a Neem spray.

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2017年08月13日

Lots of plants that we grow outside as ornamentals are actually warm weather perennials that can be grown year round indoors. As long as these plants receive plenty of sunlight, they can be kept as houseplants all year or just moved inside when the weather gets colder. Keep reading to learn more about ornamental plants you can grow indoors.[图片]Indoor Ornamentals Growing outdoor ornamentals as houseplants is often easy, as long as you pick a plant that thrives at room temperature and doesn’t need too much light. Some popular low-maintenance ornamental plants you can grow indoors are: Asparagus fern – Asparagus fern grows quickly, making deep green foliage dotted with delicate flowers and bright red berries. It works very well in a container. Geranium – Geraniums will bloom all through the winter, as long as they’re in a bright window. Caladium – Caladium, also called elephant ear, grows well indoors and will remain colorful all winter in indirect sunlight. Ivy – Ivy does very well in the shade and can be planted to drape over the edge of a pot, creating a nice cascade effect from a tall shelf or table.[图片]Some indoor ornamental plants require a little more care, however. Begonias can be brought inside, but they need some maintenance. They like high humidity, but they also like their soil to dry out between waterings. To achieve this, line your plant’s saucer with pebbles – this will keep the pot’s runoff water from evaporating as quickly. Also, mist the plant between waterings to keep it moist. Hot pepper plants can be grown as interesting houseplant ornamentals. As summer winds down, dig up your plant and put it in a pot. The pot will need bright direct sunlight, possibly from a grow light. You’ll also need to watch the leaves for aphids, which can get out of hand.[图片]Basically, as long as you can provide the plants with whatever they need to thrive, you should be able to grow nearly any type of ornamental garden plant indoors.

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2017年08月13日

Giving potted plants as gifts is growing in popularity, and with good reason. Potted plants are rarely more expensive than cut flowers, but they last much longer. With the right kind of care, they can even last for years. That said, not all potted plants are good gift ideas and, unfortunately, not all potted plant gifts can be persuaded to bloom again. Keep reading to learn about giving potted plants as gifts and caring for gifted container plants.[图片]Ideas for Potted Plant Gifts When you’re looking to give flowering plants as gifts, you want to choose something that’s easy to care for. Unless you know your recipient to be an avid gardener who likes a challenge, you should opt for something that’s very low maintenance. Remember, you want to give a decoration, not a responsibility. There are a few especially popular potted plant gifts that are known for their ease of care. African violets are an excellent choice for low light, and they’ll keep flowering almost year round. Clivia is a very hardy houseplant that blooms red and orange around Christmas and can last for years and years with little care. Small herbs, like lavender and rosemary, are the whole package: easy to care for, fragrant, and useful.[图片]Potted Plants vs. Cut Flowers If you’ve been given flowering plants as gifts, you may be at a loss as to what to do with them. Cut flowers, of course, will only last so long and then must be tossed. Most potted plants, however, can be replanted in the garden or left to grow in their pots. Unfortunately, some potted plants, like mums, are likely to last only one season. Flowering bulb plants, like tulips and hyacinths, can be saved for years. After they’re done blooming, place the pots outdoors or in a sunny window and keep watering them. They won’t bloom again this season, but the foliage will continue to grow. Later, when the foliage withers and yellows naturally, cut it off and dig up the bulbs. Dry them in a cool dark place and store them until the fall, when you can plant them in another pot or directly in your garden. They should come up naturally in the spring.[图片]Azaleas and African violets can be kept in their pots to bloom for years. Hydrangeas, lily of the valley, and begonias can be transplanted out into the garden.

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2017年08月13日

Large Victorian homes often featured solariums, open, airy parlors and conservatories as well as greenhouses. Plants were an important part of the interior decor with some Victorian era houseplants the overwhelming stars. The most popular Victorian houseplants of the day are still around today and can add a touch of old world elegance to your home interior. Read on for some options that will bring a touch of nostalgia and sophistication to your home.[图片]Houseplants Victorian Style Nostalgic fads of the Victorian era have a classic stylishness even today. Some of the more interesting home decor practices involved the use of plants inside. Plants were inexpensive, brought the outdoors in and could change a room in a heartbeat from a fussy, old maid’s parlor to a tropical haven. Most of us have heard of the use of palms as parlor plants. In fact, there is a variety that is called the parlor palm. But other than these easy to grow, graceful plants, what other greenery did Victorian era homes use to brighten the interior? Houseplants were incorporated in many rooms of the home. For instance: The summer fireplace was turned into a miniature garden to hide the smoke stained gaping hole that wouldn’t be used for months. Window gardens were also popular and a host of hanging supports were available to suspend plants right in front of the best lighting in the home. Victorian indoor plants were also often contained in Wardian cases. These were similar to a terrarium and often featured a handsome case and elaborate stand. Parlor plants made inviting hosts to guests as they arrived for a visit. Houseplants Victorian style were also usually in containers that ranged from elegant to opulent. Display was as important as the plant.[图片]Types of Victorian Indoor Plants Victorian era houseplants might simply be plants dug up from the local woods or those that were imported and exotic varieties. Among some other favorites included: Palms Ferns Jasmine Heliotropes Potted citrus trees Sword ferns and later Boston ferns were graceful additions to any room and still carry an air of chic about them today. Cast iron plant is an indestructible specimen that even a gardener with a black thumb can manage to keep alive. Depending upon the exposure available in the home, flowering specimens would often be incorporated into the décor as well. Abutilons, or parlor maples, are native to Brazil and were popular Victorian houseplants. These have papery, dangling hibiscus type flowers and leaves shaped like lacy maples. Jerusalem cherry, native to Peru, brought a festive touch at the holidays with white flowers that become reddish-orange berries.[图片]With the advent of easier travel, more and more interesting and unique houseplants began to arrive and soon the possibilities were nearly endless. Satisfying the Victorian green thumb became much easier and we can enjoy the same selection of plants today.

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2017年08月13日

If you work in an office space or lack a window in your room at home, chances are your only light is the overhead fluorescent bulbs or incandescent lighting. Lack of windows and exposure to sunlight can be bad for humans as well as plants but finding plants to brighten your cubicle or windowless room may be just the touch of outdoors needed to perk you up. There are many plants for windowless rooms that will thrive in artificial light. Let’s take a look at a few good options.[图片]Choosing Plants for a Windowless Room Plants need sunlight to photosynthesize, produce flowers and fruit and for overall health. That being said, plants are also uniquely adaptable and many vigorous specimens are perfect windowless houseplants. Choose a tried and true indoor specimen that will green up your space, clean your air and lend an aura of nature to any sterile indoor setting. You don’t have to work in a warehouse or deep inside a skyscraper to experience low light indoor conditions. And many homes have lighting issues due to the placement of the rooms or shading from trees outside. Windowless houseplants are suitable for fully shaded or semi-shady areas. When choosing plants, consider the size before purchasing. For instance, a dracaena can get quite tall as can parlor palms. [图片]Growth rate is another factor to consider. If you want a good sized plant, pick one with a rapid growth rate that will fill your area with greenery. Vining plants usually work well. If you want a hanging or trailing plant, try a heart-leaved philodendron or golden pothos. If you just want a little guy to gaze at thoughtfully, try a container of hens and chicks. Plants for Windowless Rooms There are several foolproof, classic plants for offices and darker homes. Among these include: Snake plant, or mother-in-law’s tongue, with sword-like, stiff leaves bearing attractive green and often gold markings. Cast iron plant is a quirky plant that can get up to 24 inches tall. Its name says it all, as it is not only tolerant of low light but also dampness, dust and general neglect. Peace lily is another plant with sword-like leaves but it produces a creamy white spathe resembling a big cupped flower. It prefers moist soil and average interior temperatures. Dracaena and philodendrons come in many forms and sizes, often with variegated leaves or splashes of alternate color and are great options as indoor plants for artificial light areas. Some other choices might be Chinese evergreen, spider plant or ZZ plant.[图片]Growing Indoor Plants for Artificial Light Spaces Once you’ve chosen plants for a windowless room, there are some considerations on care. Interior plants that are not exposed to direct light do not tend to dry out as quickly as their counterparts. You may need to resort to a water meter to tell when it is time to water the container. Overwatering is a real danger if you are adhering to a schedule made for plants with sun exposure. Interior plants, especially those with big leaves, need to be dusted or rinsed under water to remove debris which can clog the plant’s respiration system. Repotting every few years is a good idea, to refresh soil and go up a size on plants that are growing quickly. Fertilizer is crucial to interior plant health since they are confined to soil with limited nutrient value and cannot rely upon sunlight to create plant carbohydrates. Use a good houseplant fertilizer at least every month for healthy low light plants.

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2017年08月13日

You’re likely accustomed to leaving potted plants out over summer, but if some of your favorite perennial plants are frost tender where you live, they’ll be damaged or killed if you leave them outside during winter. But by bringing plants indoors for the winter, you can protect them against the harmful consequences of cold weather. After bringing plants indoors, however, the key to keeping plants alive over winter depends on what type of plants you have and the growing environment you provide them.[图片]Winter Plant Care How to keep plants alive over winter (by overwintering plants in pots indoors) means you first have to make room for the plants, which is sometimes easier said than done. Although you may have enough room in certain locations in your house, if the plants don’t receive enough light, they may begin to decline. Tip: Before bringing plants indoors, install some hanging basket hooks or shelves in front of bright windows. You’ll have an overhead winter garden that keeps plants from cluttering your floor space. Other than giving your plants sufficient light while they’re indoors, a key to keeping plants alive through winter is providing the temperature and humidity they need. If you place the pots near a heating vent or a drafty window, the fluctuations in temperature may place too much stress on plants.[图片]To increase the humidity around plants, set the pots on top of pebbles in a water-filled tray or dish, and keep the water level below the base of the containers. When to Start Overwintering Plants in Pots Most houseplants are tropical plants, which enjoy a little “summer vacation” in pots on your patio or deck. However, when the nighttime temperatures dip to 50 degrees F. (10 C.), it’s time to start bringing plants indoors to keep them alive during the winter. Caladiums, lilies and plants that grow from bulbs, tubers and other bulb-like structures, may go through a “resting period.” After an active growth period, some plant’s leaves and stems begin to fade or turn yellow, and the plant typically dies all the way to the ground. Even though these plants go through a dormant stage in winter, some (such as caladiums) need warm winter plant care while others (such as dahlias) respond better to chillier temperatures. A heated closet inside your home is suitable for overwintering caladium tubers, but an unheated location (40-50 degrees F. or 4-10 degrees C.) will work better for dahlias. Before bringing in your entire garden of plants for the winter, know your USDA plant hardiness zone. This determines the lowest temperature at which different plants will survive the winter outside. When you buy plants, look on the manufacturer’s tag to find the hardiness information.

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2017年08月13日

It’s possible to grow plants in water year round with very little investment of time or effort. Hydroponic plant environments aren’t as complicated as they sound, as plants grown in water simply need water, oxygen, a jar or other support to keep the plants upright – and, of course, the proper mix of nutrients to keep the plant healthy. Once you’ve determined the best fertilizer for water grown plants, the rest, as they say, is a piece of cake! Read on to learn how to fertilize plants in water.[图片]Feeding Houseplants Growing in Water Although plants get some important elements from the air, they draw most of their nutrients through their roots. For those grown in hydroponic plant environments, it’s up to us to provide fertilizer in the water. If you’re serious about creating hydroponic plant environments, it’s a good idea to have your water tested before you begin. Often, water contains a significant amount of calcium, magnesium, sodium and chloride, and in some cases, may contain excessive amounts of boron and manganese.[图片]On the other hand, iron, potassium, phosphorus, nitrogen and certain micronutrients may be lacking. A water test reveals exactly what your water needs in order for plants to flourish. As a general rule, however, feeding houseplants growing in water isn’t that complicated and unless you’re a chemistry buff, there’s really no need to stress over a complicated formulation of nutrients.[图片]How to Fertilize Plants in Water Simply add a good quality, water-soluble fertilizer to the container every time you change the water – usually every four to six weeks, or sooner if half of the water has evaporated. Use a weak solution consisting of one-quarter the strength recommended on the fertilizer container. If your plants are looking a little puny or if the foliage is pale, you can mist the leaves with a weak fertilizer solution weekly. For best results, use bottled spring water, rain water or well water, as city water tends to be heavily chlorinated and devoid of most natural nutrients.

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2017年08月13日

Houseplants and cats: sometimes the two just don’t mix! Felines are innately curious, which means that protecting houseplants from cats can be a major challenge. Read on for helpful tips on how to protect indoor plants from cats, as well as a list of houseplants cats will leave alone (probably!).[图片]How to Protect Indoor Plants from Cats Protecting houseplants from cats is largely a matter of trial and error, and the following tips may or may not work for you and your kitty. However, they’re worth a try, and they may just be successful! Chunks of citrus peels on the surface of the soil are often effective houseplant cat deterrents. Most cats aren’t crazy about the aroma of citrus. Arrange a few large rocks in pots, with the rough edges facing up. The rocks add interest and actually help keep moisture in the soil, but kitties don’t like the feel of rough stuff on their paws. If you don’t have rocks in your yard, look at a hobby shop or aquarium store. Other ideas include oyster shells or chunks of broken terracotta pots.[图片]Cut a piece of chicken wire or hardware cloth slightly smaller than the diameter of the container. Cover the wire with a thin layer of potting soil topped with colorful stones or pea gravel. Safe houseplant cat deterrents include pine cones nestled into the top of the soil. Cats usually don’t appreciate the feel or the smell. Give kitty his/her own pot of catnip or catmint. The cat may be so delighted that it will leave your other plants alone. Cats also tend to like barley, oatgrass, or wheatgrass (The down side is that this may simply tell your kitty that eating plants is acceptable.). Play with your kitty every day. Provide scratching posts and various toys to stimulate your kitty and prevent boredom, which is one of the reasons houseplants become attractive. Pick up a cat houseplant deterrent spray at your local pet store. Bitter apple tends to be very effective.[图片]Houseplants Cats will Leave Alone In most cases, cats tend to avoid the following plants: Rosemary – Most cats hate it, but felines are unpredictable. Some may actually love it. Coleus canina – This attractive plant, also known as scaredy-cat plant, can be grown indoors or outdoors. Lemon balm – Cats don’t like the citrusy aroma or the rough texture of the foliage. Curry plant (Helichrysum italicum) – Don’t confuse this herb with real curry (Murraya koenigii). Geraniums – The aroma and the thick texture of the leaves may keep cats away. Cactus, miniature roses and other prickly or thorny plants also seem to deter cats.

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2017年08月13日

Houseplants are a fabulous thing to have around. They brighten the room, they purify the air, and they can even provide a little bit of company. That’s why it can be so distressing to find that your houseplant leaves are turning brown. Keep reading to learn more about why houseplants turn brown and what to do if you have houseplants with brown leaves.[图片]Reasons for Brown Leaves on Houseplants Houseplants are special because they’re kept in an unnatural environment. They depend upon you for everything nature would normally give them, and they let you know when you slip up. Brown leaves on indoor plants almost always means that the plants are getting too much or too little of something important. Light – One very common problem with indoor plants is a lack of light. If your plant isn’t getting enough light, its leaves will start to turn brown. If the brown leaves are on the side of the plant facing away from the light source, you can be pretty sure this is the problem. Water – Too little water is another frequent reason for brown leaves on indoor plants. In this case, the browning and curling usually starts at the base of the plant and moves up.[图片]Humidity – Lack of humidity is another common problem, and one people don’t usually think of. Tropical plants, especially, need more humidity than a home is likely to give them. This usually causes the leaves to brown just at the tips. Try misting your plant with water, or setting the pot in a dish of small stones and water. Heat – Too much heat can also be a problem, and it tends to lead to leaves that brown, curl, and fall off. This problem tends to come with too little water or too much sun, so try making those changes first. You can also move the plant to a spot where it receives better air circulation.[图片]Caring for Houseplants with Brown Leaves So what do you do when leaves on houseplant turn brown? Simple. In most cases, pinpointing the cause and remedying it will correct the issue. In the meantime, you can cut away the brown foliage and discard it. Once the causal agent has been fixed, new healthier foliage should begin to take its place.

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