动态第931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21日

ZZ plant is a slow growing, reliable performer that is doggedly loyal even when you mistreat it. It is such an easy plant that creating more of them to share with friends and family seems like a good idea. Propagating ZZ plants is easy but can take up nine months or more. Learn how to root ZZ plant cuttings for a better chance at success.[图片]ZZ Plant Leaf Propagation It is common to find a ZZ plant in an office setting with low light and no fresh air. The uncomplaining plant, Zamioculcus zamiifolia, is also known as eternity plant, fat boy, aroid palm and many more common names. It hails from the Southeast coast of Africa and has been an important houseplant in the industry for years. ZZ plants grow from large thick rhizomes. Propagating ZZ plants is as easy as separating these or you can try rooting leaf cuttings. Propagation of ZZ plants by division can only be done once in a while. This is because the plant produces new rhizomes very slowly and removing some frequently will damage the parent plant. Since rhizomes are slow, it is best to look at leaf cuttings as the source of material for propagation. Stems cuttings alone will not work well, but if you take a cutting with two leaves and a bit of stem, the rooting and growth is quicker than just a single leaf and no stem. ZZ plant leaf cuttings are the recommended method by professional growers and can result in new rhizomes in about 4 weeks when grown in nearly 80 degree Fahrenheit (26 C.) conditions. However, most of us don’t have greenhouse conditions so the process could take nine months or more.[图片]Soil for ZZ Leaf Cuttings Once you have the correct type of cutting, it is time to consider the medium. Some houseplants can root in just a glass of water; however, rooting ZZ plant in water will likely result in a rotten cutting and isn’t the best way to establish new plants. They need to be in well-drained soil or the newly forming rhizomes will mold and fall away. The best mixture for rooting is often one that is almost soilless. At best, it should have superior drainage. Try a good potting soil with plenty of vermiculite or perlite added into it or use a mixture of half peat and half perlite. The perlite or vermiculite will give the medium a light texture and help prevent soil from maintaining too much moisture.[图片]How to Root ZZ Plant Cuttings Take your ZZ plant leaf cuttings from mature stems. Allow the cut end to callus over for a few hours. Then insert it into your medium, cut end down. Place in a warm area with bright light during the day. Check for roots and rhizome formation after a month. Once you have a few tiny rootlets and the bud of a rhizome, you can transplant the cuttings to larger containers. It is a good idea to start many cuttings with ZZ plant leaf propagation because some of them may not take off. Additionally, checking to see if they have roots may actually kill the cutting, but if you have more than one you still have a chance of more ZZ plants. Be very patient. Some growers have mentioned the nine month period as the end of all your waiting, but it could take even longer if the cutting doesn’t have enough light and temperatures aren’t warm enough. Simply put the cuttings somewhere that you will remember to water them occasionally and wait it out. Over time, this slow grower will jump into action and provide you with the start of a new plant.

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2017年08月21日

Growing waffle plants as part of a dish garden or a mixed container provides unusual, cascading foliage with a purple color and metallic tint. Waffle plant info indicates that the plant, also known as red ivy or red flame ivy, grows easily indoors under the right growing conditions.[图片]Growing Waffle Plants Learning how to grow Hemigraphis alternata and other waffle plant species is fairly simple once you have it in the right location. Red ivy plant care requires that the plant get bright, but indirect light, meaning direct sunlight should not reach the foliage. When growing waffle plants in direct sun, much of the foliage color washes out and leaf tips can burn. Keep growing waffle plants away from drafts as well. Waffle plant info says growing waffle plants need evenly moist soil. Consistent watering of well drained soil promotes growth and well-being of the waffle plant. However, do not allow roots of the plant to remain in a soggy soil.[图片]Info also indicates high humidity is an integral part of red ivy plant care. Mist the plant regularly, or better yet, create a pebble tray to provide humidity to all your indoor plants. Place layers of pebbles in a plant saucer, or any container without drainage holes. Fill three-quarters of the way with water. Set the plants on top of the pebbles, or near the pebble tray. Indoor humidity is usually low, especially in winter. Pebble trays are an easy way to give your houseplants what they need. Waffle plant info says it is easy to get more growing waffle plants by propagating from stem cuttings. Take 4- to 6-inch stem pieces from the waffle plant, removing all but the top leaves, and place in small containers in moist soil.[图片]Fertilize with a liquid houseplant food or granulated fertilizer. Water as needed to keep the soil moist and you should have rooted cuttings ready to transplant in seven to 10 days. Use the cuttings with compatible plants for more dish gardens. Now that you’ve learned how to grow Hemigraphis alternata, take advantage of its showy color in different houseplant combinations.

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2017年08月21日

Carnivorous plants are endlessly fascinating. One such plant, the Venus flytrap, or Dionaea muscipula, is native to boggy areas of North and South Carolina. While the flytrap photosynthesizes and garners nutrients from the soil just as other plants, the fact is that boggy soil is less than nutritious. For this reason, the Venus flytrap has adapted to ingesting insects to round out its need for nutrients. If you are lucky enough to have one of these charmingly strange plants, you may have encountered some Venus flytrap problems – namely getting a Venus flytrap to close.[图片]My Venus Flytrap Won’t Close Probably the biggest reason your Venus flytrap does not snap shut is because it’s exhausted, sort of. The leaves of the flytrap have short, stiff cilia or trigger hairs. When something touches these hairs enough to bend them, the dual lobes of the leaves close, effectively trapping the “something” inside in less than a second. There is a lifespan for these leaves, however. Ten to twelve times of snapping shut and they cease to function as trapping leaves and remain open, functioning as photosynthesizers. Chances are good that a store bought plant has already been jostled in transit and played with by any number of potential buyers and are just plain done. You will have to wait patiently for new traps to grow. It is also possible that the reason your Venus flytrap doesn’t snap shut is because it’s dying. Blackening leaves may signal this and are caused by bacteria, which may infect the trap if it hasn’t completely closed when feeding, as when an overly large bug is caught and it can’t shut tightly. A complete seal of the trap is needed to keep the digestive juices in and bacteria out. A dead plant will be brown-black, mushy, and have a rotting odor. [图片]Getting a Venus Flytrap to Close If you feed your Venus flytrap a dead insect, it will not struggle and signal the cilia to close. You have to manipulate the trap gently to simulate a live insect and allow the trap to snap shut. The trap then secretes digestive juices, dissolving the soft innards of the bug. After five to 12 days, the digestive process is completed, the trap opens and the exoskeleton is blown away or washed out with the rain. Getting your flytrap to close may be a matter of temperature regulation. Venus flytraps are sensitive to the cold which will cause the traps to close very slowly.[图片]Keep in mind that the hairs on the traps or lamina have to be stimulated for the trap to shut. At least one hair must be touched twice or several hairs in rapid succession as when an insect is struggling. The plant can distinguish between a living insect and say, raindrops, and will not close for the latter. Lastly, like most plants, the Venus flytrap lies dormant during the fall through to the following spring. During this time period, the trap is in hibernation and has no need for additional nutrition; hence, the traps do not respond to stimulus. Overall green color in the leaves indicates the plant is simply resting and fasting and not dead.

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2017年08月21日

Venus flytraps are enjoyable and entertaining plants. Their needs and growing conditions are quite different from those of other houseplants. Find out what this unique plant needs to stay strong and healthy, and what to do when Venus flytraps are turning black in this article.[图片]Why to Flytraps Turn Black? Each trap on a Venus flytrap plant has a limited lifespan. On average, a trap lives about three months. The end may look dramatic, but there is usually nothing wrong with the plant. When you find that the traps on a Venus flytrap turn black much sooner than they should or when several traps die at once, check your feeding practices and growing conditions. Correcting the problem can save the plant.[图片]Feeding flytraps Venus flytraps kept indoors depend on their caretakers to provide the insect meals they need to thrive. These plants are so much fun to feed that it’s easy to get carried away. It takes a lot of energy to close a trap and digest the food inside. If you close too many at once, the plant uses all of its reserves and the traps begin to blacken. Wait until the traps are fully open and feed just one or two a week. If you’re feeding the right amount and the Venus flytrap is turning black anyway, perhaps the problem is what you are feeding it. If a bit of the insect, such as a leg or a wing, sticks outside the trap, it won’t be able to make a good seal so that it can digest the food properly. Use insects that are no more than one-third the size of the trap. If the trap catches a bug that is too large on its own just leave it alone. The trap may die, but the plant will survive and grow new traps.[图片]Growing conditions Venus flytraps are a bit fussy about their soil, water and container. The fertilizers and minerals that are added to commercial potting soils help most plants grow, but they are fatal to Venus flytraps. Use a potting mix labeled specifically for Venus flytraps, or make your own from peat moss and sand or perlite. Clay pots also contain minerals, and they leach out when you water the plant, so use plastic or glazed ceramic pots. Water the plant with filtered water to avoid the introduction of chemicals that may be in your tap water. The plant also needs plenty of sunlight. Strong light coming in from a south-facing window is best. If you don’t have strong natural light available, you will have to use grow lights. Good care and proper conditions are essential to preserve the life and health of the plant.

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2017年08月21日

Carnivorous plants are fun to grow and fascinating to watch and learn about. The Venus fly trap (Dionaea muscipula) is a moisture loving plant that grows near marshes and bogs. The plants have been overharvested in their native habitat and are becoming rare. Native to only a few areas in North and South Carolina, Venus fly traps grow in nitrogen depleted soils. This is why they trap insects, which provide them with the necessary nitrogen. Venus fly trap care is relatively easy and makes a great family project.[图片]How to Care for a Venus Fly Trap The Venus fly trap needs slightly acidic moist soils. Grow a Venus fly trap in a peat moss and sand mixture, which will provide mild acidity and help hold water without keeping soils too soggy. The plant needs at least 60 percent humidity and day time temperatures of 70 to 75 F. (22-24 C.). Nighttime temperatures should not go below 55 F. (13 C.). The Venus fly trap is sensitive to chemicals and heavy mineral contents, so a distilled or bottled water is best. Keep water off the foliage by soaking the plant for an hour in a dish of water to moisten the soil. In order to make Venus fly trap care easier, make it a terrarium. An old aquarium makes a good housing for the plant if you cover it. This encourages humidity and moisture retention and you can allow insects to fly around inside for the plant to catch. Line the inside with TWO parts sphagnum moss and one part sand. The Venus fly trap can then be placed in an east- or west-facing window with high indirect lighting.[图片]Venus fly trap is a rosette form with four to six leaves that are hinged and able to close. They are tinged a rosy pink on the edges and secrete an attractive nectar. The edges of the leaves have numerous fine sensitive cilia. When an insect touches the cilia the leaf closes and traps the insect. Special digestive juices disintegrate the insect and the plant feeds on the insects bodily fluid. Caring for a venus fly trap must ensure that it is exposed to areas where it can capture insects. Learn how to care for a Venus fly trap to help this disappearing species continue.[图片]What to Feed a Venus Fly Trap Plant The fly trap lives up to its name by using its clasping leaves to trap insects. Its diet is not only confined to flies and it will eat creeping insects such as ants, too. When you are caring for a Venus fly trap indoors, you need to assist them by capturing insects. Use tweezers and place the insect on an open leaf pad and tickle the little hairs on the edge until it closes. Some people try to water with beef bouillon or another protein but this can cause mold to form and is not recommended.

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2017年08月21日

What is a tortoise plant? Also known as elephant foot yam, tortoise plant is a weird but wonderful plant named for its large tuberous stem that resembles a tortoise or an elephant’s foot, depending how you look at it.[图片]Tortoise Plant Info Attractive, heart-shaped vines grow from the corky bark of the tortoise plant. The starchy tuber, which is partially buried, grows slowly; however, in time, the tuber can reach heights of more than 3 feet and width of up to 10 feet. With proper care, tortoise plant can live as long as 70 years. Native to South Africa, tortoise plant is drought tolerant and does fine in extreme heat. The plant may survive a frost but a hard freeze is likely to kill it. If you decide to try your hand at growing this fascinating plant, be sure to ask for the plant by its scientific name – Dioscorea elephantipes. The Dioscorea genus includes other unique plants such as Chinese yam, air potato and water yam.[图片]How to Grow Tortoise Plants In most climates, tortoise plants are grown as indoor plants, and the plant is relatively easy to grow from seed. The roots aren’t deep, so plant tortoise plant in a shallow pot filled with a porous, well-drained potting mix. Water the plant around the edges of the pot and not directly on the tuber. Allow the soil to become nearly dry before watering again. Tortoise plant care is simple. Feed the plant with a very dilute (25 percent of normal) fertilizer with each watering. Withhold fertilizer and water sparingly during the plant’s dormant period – when the vines turn yellow and die back. Plants often go dormant during the summer, but there is no set pattern or time schedule.[图片]If the vine dries up completely during dormancy, move the plant to a cool place and withhold water completely for about two weeks, then return it to the sunny location and resume normal care. If you grow tortoise plant outdoors, place it in sandy soil amended with rich, well-rotted compost. Be careful not to overwater.

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2017年08月21日

If you’re looking for something unusual to grow inside the home, you may want to consider growing a telegraph plant. What is a telegraph plant? Read on to learn more about this odd and interesting plant.[图片]Telegraph Plant Info What is a telegraph plant? Also known as the dancing plant, the telegraph plant (Codariocalyx motorius – formerly Desmodium gyrans) is a fascinating tropical plant that dances as the leaves move up and down in bright light. Telegraph plant also responds to warmth, high frequency sound waves or touch. During the night, the leaves droop downwards. Telegraph plant is native to Asia. This low-maintenance, problem-free member of the pea family is usually grown indoors, surviving outdoors only in the warmest climates. Telegraph plant is a vigorous grower that reaches heights of 2 to 4 feet at maturity.[图片]Why Does a Telegraph Plant Move? The plant’s hinged leaves move to reposition themselves where they receive more warmth and light. Some botanists believe the movements are caused by special cells that cause the leaves to move when water molecules swell or shrink. Charles Darwin studied the plants for many years. He believed the movements were the plant’s way of shaking water droplets from the leaves after a heavy rainfall.[图片]How to Grow Telegraph Houseplants Growing a dancing telegraph plant isn’t difficult, but patience is needed because the plant can be slow to germinate. Plant seeds indoors any time. Fill pots or seed trays with a compost-rich potting mix, such as orchid mix. Add a small amount of sand to improve drainage, then wet the mixture so it is evenly moist but not saturated. Soak the seeds in warm water for one to two days to soften the outer shell, and then plant them about 3/8 inch deep and cover the container with clear plastic. Place the container in a dimly lit, warm location where temperatures are between 75 and 80 F. or 23 to 26 C. Seeds usually sprout in about 30 days, but germination can take as long as 90 days to occur or as quickly as 10 days. Remove the plastic and move the tray to bright light when the seeds germinate. Water as needed to keep the potting mix consistently moist, but never soggy. When the seedlings are well-established, move them to 5-inch pots. Telegraph Plant Care Water telegraph plant when the top inch of soil feels slightly dry. Allow the pot to drain thoroughly and never let it stand in water. Feed the plant monthly throughout spring and summer using fish emulsion or a balanced houseplant fertilizer. Withhold fertilizer after the plant drops its leaves and enters winter dormancy.

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2017年08月21日

Sweetheart hoya plant, also known as Valentine plant or sweetheart wax plant, is a type of Hoya appropriately named for its thick, succulent, heart-shaped leaves. Like other Hoya varieties, sweetheart hoya plant is a stunning, low-maintenance indoor plant. Read on for additional wax plant info.[图片]Hoya Wax Plant Info Native to Southeast Asia, sweetheart hoya (Hoya kerrii) is often a quirky Valentine’s Day gift with a single 5-inch leaf planted upright in a small pot. Although the plant is relatively slow-growing, it appreciates a hanging basket, where it eventually becomes a bushy mass of green hearts. Mature plants can reach lengths of up to 13 feet. During the summer, clusters of white, burgundy-centered blooms provide bold contrast to the deep green or variegated leaves. One mature plant can display up to 25 blooms.[图片]How to Grow a Sweetheart Wax Plant Sweetheart hoya care isn’t complicated or involved, but the plant is somewhat particular about its growing conditions. This Valentine hoya tolerates relatively low light, but not full shade. However, the plant performs best and is more likely to bloom in bright or indirect sunlight. Room temperatures should be maintained between 60 and 80 F. or 15 and 26 C. With its fleshy, succulent leaves, sweetheart hoya is relatively drought-tolerant and can get by with as little as one or two waterings per month. Water deeply when the soil is slightly dry to the touch, then let the pot drain thoroughly.[图片]Although the soil should never become bone dry, wet, soggy soil can result in deadly rot. Be sure sweetheart hoya is planted in a pot with a drainage hole. Sweetheart hoya is a light feeder and requires little fertilizer. A light solution of balanced, water-soluble houseplant fertilizer mixed at a rate of ¼ teaspoon in a gallon of water is plenty. Feed the plant once a month during the growing season and discontinue feeding in winter. If a mature plant doesn’t bloom, try exposing the plant to brighter light or cooler nighttime temperatures.

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2017年08月21日

Sundews (Drosera spp.) are carnivorous plants with an ingenious way to catch their prey. Carnivorous sundew plants have sticky pads that trap insects. The plants are also attractive, often brightly colored rosettes. Growing sundews is common in terrariums or other warm, moist areas that mimic their natural bog habitat. A few tips on how to care for a sundew will have you on your way to enjoying this fascinating plant.[图片]Sundew Plant Information There are over 90 species of sundew. The majority are found in Australia and South Africa, but they also grow in hot, humid areas of Georgia, Florida and other similar climates. The plants prefer acidic soils and are usually where there is a bog or marsh and often grow on top of sphagnum moss. Sundews are in the genera Drosera and common varieties are often seen in houseplant stores. Sundew plant information wouldn’t be complete without explaining the trap mechanism. The plant has tiny arms or stems covered at the tips with sticky filaments. These filaments secrete a substance that will not only catch small prey but will also digest them. The arms fold in to hold the insect for four to six days until it is completely digested.[图片]Growing Sundews Whether you grow them indoors or out, carnivorous sundew plants are excellent for controlling gnats and other tiny insects. Sundew plants thrive as potted plants in a mixture of sphagnum moss and vermiculite or perlite. The pot must be kept constantly moist and an atmosphere of humidity is best for maximum growth. Carnivorous sundew plants need warm temperatures and moist conditions. Outdoor plants do well when planted near a water feature or even in soggy soil. When growing sundews outdoors, till soil completely and mix in sphagnum moss to increase the acidity. Full sun situations suit the plant best, but you can also grow them in dappled light.[图片]How to Care for a Sundew Potted plants do not need fertilizer but do require either distilled or rainwater, as they are not tolerant of high levels of minerals. Provide a humidity level of 40 to 60 percent. This is easy to do by setting a saucer filled with small pebbles under the plant and filling it with water. The evaporation will help moisten the ambient air. Cut off spent stems and leaves as they occur. Transplant them when they outgrow their pots. There are some varieties of Drosera that are more hardy than others. Check with your extension office for plant recommendations for your area. Follow the instructions on how to care for a sundew and grow a fascinating and useful plant in the garden.

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2017年08月21日

If you love the look of African violets but find them a bit too difficult to grow, try a pot or two of their hardier cousins, the Streptocarpus or cape primrose. It’s said that growing Streptocarpus plants is good training for African violets because their requirements are similar, but cape primrose isn’t as delicate. Their blooms look very similar to African violets with their purple, pink and white hues, but they also possess red varieties in brilliant colors. The leaves are wrinkled and thick with a fuzzy texture and make an attractive houseplant all by themselves. Streptocarpus information is readily available, making these plants a good choice for novice growers.[图片]Streptocarpus Care Indoors Learning how to care for Streptocarpus is a matter of matching the plant to the environment. The cape primrose is very similar to humans when it comes to finding a comfortable home. They like the air around them to be relatively cool, around 70 F. (21 C.) during the day and about 10 degrees cooler at night. This plant loves light, but direct sunlight can burn the foliage. A home in an east- or west-facing window is perfect, but if a southern view is all you have, you can slip a sheer curtain between the plant and the windowpane to diffuse the worst of the glare.[图片]Tips for Growing Streptocarpus Plants The easiest way to kill off your Streptocarpus plant is by over-watering it. Give your Streptocarpus care and attention, but offer it a little bit of neglect when it comes to moisture. Make sure the planting medium has very good drainage, and allow it to dry out between watering. Propagating Streptocarpus can be a simple and enjoyable hobby. It’s very easy to create dozens of baby plants, increasing your collection and creating new plants for gifts. Cut off a large, healthy leaf with a clean razor blade and slice out the central vein, leaving two leaf halves. Plant the halves in rich potting soil by standing them up with the cut side down.[图片]Keep the leaf halves moist until they start to sprout. After a few weeks, you will see baby plants forming along the cut edges of the leaves, sometimes as many as a couple of dozen from each leaf. Separate the plantlets once they are growing and healthy and plant each one in an individual pot.

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