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Dummer. ゛☀
2017年08月17日
Dummer. ゛☀
Christmas cactus is a striking plant with bright pink or red blooms that add festive color around the winter holidays. Unlike typical desert cactus, Christmas cactus is a tropical plant that grows in the Brazilian rainforest. The cactus is easy to grow and a cinch to propagate, but Christmas cactus has some unusual attributes that may cause you to wonder what’s going on with your plant. Let’s learn more about roots growing from Christmas cactus plants. [图片]Why Christmas Cactus Has Aerial Roots If you notice root-like growths on Christmas cactus, don’t be overly concerned. Christmas cactus is an epiphytic plant that grows on trees or rocks in its natural habitat. The roots growing from Christmas cactus are actually aerial roots that help the plant cling to its host. The plant is not a parasite because it doesn’t depend on the tree for food and water. This is where the roots come in handy. Christmas cactus aerial roots help the plant reach sunlight and absorb necessary moisture and nutrients from leaves, humus and other plant debris that surround the plant. [图片]These natural survival mechanisms can give you clues why your potted Christmas cactus is developing aerial roots. For example, low light can cause the plant to send out aerial roots in an attempt to absorb more sunlight. If this is the case, moving the plant into brighter sunlight may diminish the growth of aerial roots. Similarly, the plant may develop aerial roots because it is reaching out to find more water or nutrients. Water the plant deeply whenever the top 1 to 2 inches of potting soil feels dry to the touch. Water sparingly during fall and winter, providing just enough moisture to keep the plant from wilting. Feed the plant once every month, beginning in late winter or early spring, using a regular houseplant fertilizer. Stop fertilizing in October when the plant is preparing to bloom.
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Dummer. ゛☀
2017年08月17日
Dummer. ゛☀
Does your cat think the dangling stem of a Christmas cactus makes an excellent toy? Does he/she treat the plant like a buffet or a litter box? Read on to find out how to handle cats and Christmas cactus. [图片]Christmas Cactus & Cat Safety When your cat eats a Christmas cactus, your first concern should be the health of the cat. Is Christmas cactus bad for cats? The answer depends on how you grow your plants. According to the ASPCA plant database, Christmas cactus is not toxic or poisonous to cats, but insecticides and other chemicals used on the plant may be toxic. In addition, a sensitive cat eating Christmas cactus may suffer an allergic reaction. Carefully read the label of any chemicals you may have recently used on the plant. Look for cautions and warnings as well as information about how long the chemical remains on the plant. Contact your vet if you have any concerns. Cats love the feel of their paws in dirt, and once they discover this pleasure, it’s hard to keep them from digging in your plants and using them as litter boxes. Try covering the potting soil with a layer of pebbles to make it hard for kitty to dig down to the soil. For some cats, cayenne pepper sprinkled liberally over the plant and the soil acts as a deterrent. Pet stores sell a number of commercial cat deterrents. One of the best ways to keep the cat out of a Christmas cactus is to plant it in a hanging basket. Hang the basket where the cat can’t reach it, even with a well-executed and carefully planned jump. [图片]Christmas Cactus Broken By Cat When the cat breaks stems off of your Christmas cactus, you make new plants by rooting the stems. You’ll need stems with three to five segments. Lay the stems aside in an area out of direct sunlight for a day or two to let the broken end callus over. Plant them an inch deep in pots filled with potting soil that drains freely, such as cactus potting soil. Christmas cactus cuttings root best when the humidity is very high. You can maximize the humidity by enclosing the pots in a plastic bag. Cuttings root in three to eight weeks. Cats and Christmas cactus can live in the same house. Even if your cat isn’t showing any interest in your plant right now, he/she may take an interest later. Take steps now to prevent damage to the plant and harm to the cat.
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Dummer. ゛☀
2017年08月16日
Dummer. ゛☀
Christmas cactus is a hardy tropical cactus that brightens the environment with gorgeous, red and pink blooms around the winter holidays. Although Christmas cactus is easy to get along with and requires minimal care, it is susceptible to root rot. Usually, this dreaded fungal disease is not caused by inattention, but is the result of improper watering. [图片]Signs of Root Rot in Christmas Cactus A holiday cactus with root rot displays wilted, limp, sagging growth, but an inspection of the roots will tell the tale. Remove the plant gently from its pot. If the cactus is affected by rot, the roots will display blackened tips. Depending on the severity of the disease, rotten Christmas cactus roots will be slimy with black or brown decay. If you determine that your Christmas cactus is rotting, it’s critical to act fast. Rot is a deadly disease and once it progresses, the only option is to discard the plant and start fresh. If part of the plant is healthy, you can use a leaf to propagate a new plant. [图片]Treating a Holiday Cactus with Root Rot If you catch the disease early, you may be able to save it. Remove the Christmas cactus from the container immediately. Trim away affected roots and rinse the remaining roots gently to remove fungus. Place the plant on a paper towel and put it in a warm, well-ventilated location so the roots can dry overnight. Place the Christmas cactus in a dry pot with fresh, lightweight potting soil the next day. Be sure the pot has a drainage hole so the soil can drain freely. Wait a couple of days before watering the newly potted Christmas cactus. When you resume watering, be sure you understand the most effective way to irrigate your Christmas cactus. Always water thoroughly until water drips through the drainage hole, then let the plant drain before returning the pot to its drainage saucer. Never let the plant stand in water. Be careful not to kill the plant with kindness; slightly underwatered conditions are healthiest. Don’t water until the top ½ inch of soil feels dry. Water sparingly during the winter months, but don’t allow the potting mix to become bone dry. Place the plant in bright sunlight during fall and winter and in light shade during spring and summer.
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Dummer. ゛☀
2017年08月16日
Dummer. ゛☀
Can I plant my Christmas cactus outside, you ask? Can Christmas cactus be outside? The answer is yes, but you can only grow the plant outdoors year round if you live in a warm climate because Christmas cactus is definitely not cold hardy. Growing Christmas cactus outdoors is possible only in USDA plant hardiness zones 9 and above. [图片]How to Grow a Christmas Cactus Outside If you live in a cool climate, plant Christmas cactus in a container or hanging basket so you can bring it indoors when temperatures fall below 50 F. (10 C.) Use a well-drained potting medium such as a mixture of potting soil, perlite and orchid bark. A location in light shade or early morning sun is best for growing Christmas cactus outdoors in warmer climates, although a sunnier location is suitable in fall and winter. Beware of intense light, which may bleach the leaves. Temperatures between 70 and 80 F. (21-27 C.) are ideal during the growing season. Be careful of sudden changes in light and temperatures, which may cause the buds to drop. [图片]Christmas Cactus Outdoor Care As part of your care of Christmas cactus outside, you’ll need to water Christmas cactus when the soil is on the dry side, but not bone dry. Don’t overwater Christmas cactus, especially during the winter months. Soggy soil may result in rot, a fungal disease that is usually deadly. Christmas cactus outdoor care involves regular inspection for pests. Watch for mealybugs – tiny, sap-sucking pests that thrive in cool, shady conditions. If you notice telltale white cottony masses, pick them off with a toothpick or a cotton swab dipped in alcohol. A Christmas cactus growing outdoors is also susceptible to aphids, scale and mites, which are easily removed by periodic spraying with insecticidal soap spray or neem oil. Trim Christmas cactus in early summer by removing two or three segments. A regular trim will promote full, bushy growth.
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Dummer. ゛☀
2017年08月16日
Dummer. ゛☀
Christmas cactus are relatively trouble-free succulent plants, but if your Christmas cactus leaves are red or purple instead of green, or if you notice Christmas cactus leaves turning purple on edges, your plant is telling you that something isn’t quite right. Read on to learn about possible causes and solutions for reddish-purple Christmas cactus leaves. [图片]Why Do Christmas Cactus Leaves Turn Purple? Oftentimes, a purplish tint to your Christmas cactus leaves is normal. That said, if it’s noticeably throughout the leaves, it may signal an issue with your plant. Below are the most common reasons for leaves becoming red or purple on Christmas cacti: Nutritional issues – If you don’t fertilize your Christmas cactus regularly, the plant may be lacking necessary nutrients. Feed the plant monthly from spring until mid-autumn with a general purpose fertilizer for indoor plants. Additionally, because Christmas cacti require more magnesium than most plants, it normally helps to provide a supplemental feeding of 1 teaspoon of Epsom salts dissolved in one gallon of water. [图片]Apply the mixture once every month throughout spring and summer, but don’t use the Epsom salt mixture the same week you apply regular plant fertilizer. Crowded roots – If your Christmas cactus is rootbound, it may not be absorbing nutrients effectively. This is one possible reason for reddish-purple Christmas cactus leaves. Keep in mind, however, that Christmas cactus thrives with crowded roots, so don’t repot unless your plant has been in the same container for at least two or three years. If you determine that the plant is rootbound, repotting Christmas cactus is best done in spring. Move the plant to a container filled with a well-drained potting mix such as regular potting soil mixed with perlite or sand. The pot should be just one size larger. Location – Christmas cactus requires bright light during fall and winter, but too much direct light during the summer months may be the reason for Christmas cactus leaves turning purple on edges. Moving the plant to a more appropriate location may prevent sunburn and solve the problem. Be sure the location is away from open doors and drafty windows. Similarly, avoid hot, dry areas such as near a fireplace or heating vent.
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Dummer. ゛☀
2017年08月16日
Dummer. ゛☀
Christmas cactus is a familiar plant that produces masses of colorful blooms to brighten the environment in the darkest days of winter. Although Christmas cactus is relatively easy to get along with, it isn’t uncommon to notice a Christmas cactus with yellow leaves. Why do Christmas cactus leaves turn yellow? There are several possible reasons for yellow Christmas cactus leaves. [图片]Troubleshooting a Christmas Cactus with Yellow Leaves If you notice your Christmas cactus leaves turning yellow, consider the following possibilities: Time to repot – If the container is packed tightly with roots, the Christmas cactus may be potbound. Move the Christmas cactus to a pot one size larger. Fill the pot with a mixture that drains well, such as two parts potting mix and one part coarse sand or perlite. Water well, then withhold fertilizer for a month after repotting a Christmas cactus. However, don’t rush to repot because this plant actually thrives in a crowded pot. As a general rule, don’t repot unless it’s been at least two or three years since the last repotting. [图片]Improper watering – Yellow Christmas cactus leaves may be a sign that the plant has a disease known as root rot, which is caused by excessive watering or poor drainage. To check for root rot, remove the plant from the pot and inspect the roots. Diseased roots will be brown or black, and they may have a mushy appearance or a musty odor. If the plant has rot, it may be doomed; however, you can attempt to save the plant by trimming the rotted roots and moving the plant to a clean pot with fresh potting mix. To prevent root rot, water only when top 2 to 3 inches of soil feel dry to the touch, or if the leaves look flat and wrinkly. Decrease watering after blooming, and provide only enough moisture to prevent the plant from wilting. Nutritional needs – Christmas cactus leaves turning yellow may be an indication that the plant is lacking necessary nutrients, especially if you don’t fertilize regularly. Feed the plant monthly from spring until mid-autumn using an all-purpose liquid fertilizer. Additionally, Christmas cactus is said to have a high magnesium requirement. As such, some resources recommend a supplemental feeding of 1 teaspoon of Epsom salts mixed in one gallon of water applied once monthly throughout spring and summer.[图片]Stagger feedings and don’t apply the Epsom salt mixture the same week you apply regular plant fertilizer. Too much direct light – Although Christmas cactus benefits from bright light during fall and winter, too much sunlight during the summer months can give the leaves a yellow, washed-out appearance. Now that you know why leaves turn yellow on Christmas cactus, this problem need not be frustrating anymore.
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Dummer. ゛☀
2017年08月16日
Dummer. ゛☀
Help! My Christmas cactus has bugs! Christmas cactus is a relatively low-maintenance, pest-resistant plant, but it can fall victim to a number of harmful pests. If you notice tiny bugs in Christmas cactus, take heart. Most pests of Christmas cactus are easily eliminated. Water and fertilize as necessary, and keep in mind that healthy plants are more resistant to Christmas cactus insects. Read on to learn more about bugs in Christmas cactus. [图片]Treating Christmas Cactus Insects Here are some common pests of Christmas cactus and how to deal with them: Spider Mites – These Christmas cactus pests are so tiny, they are difficult to see with the naked eye. However, is you see fine webbing or fine speckles on the leaves, you can bet your Christmas cactus is infested with spider mites. Spider mites are usually easy to resolve with regular application of insecticidal soap spray. Keep the leaves clean, as mites are attracted by dusty conditions. Mealybugs – Mealybugs are an annoying pest, common on indoor plants. Although the tiny bugs on Christmas cactus are tiny, they are easy to spot by the protective cottony masses, which are usually seen at the joints of leaves and stems, or on the undersides of leaves. The bugs, which suck the sap from the leaves, grow larger as they mature.[图片]If left untreated, they leave a sticky substance that attracts mold. To remove mealybugs, pick them off with a toothpick or soft toothbrush. You can also use a cotton swab dipped in rubbing alcohol, but be careful; too much rubbing alcohol may damage the leaves. If all else fails, you may want to try a systemic insecticide formulated for indoor plants. Scale – These Christmas cactus insects can suck the sweet juices and decimate a plant in a hurry.[图片]Scale is recognized by the waxy outer covering, usually on the undersides of leaves and stems. In its early stages, you can simply scrape the waxy substance from the leaves. Insecticidal soap is also effective. In case of large infestations, systemic insecticides may be the best solution. Fungus gnats – Tiny, flying pests, fungus gnats are usually more annoying than harmful, although large infestations can cause loss of leaves and an overall unhealthy appearance. Try insecticidal soap spray first, as this may be enough to keep fungus gnats in check. You may need to repot the plant in a clean pot filled with fresh, well-drained potting mix, then be careful not to overwater, as gnats are attracted to soggy soil.
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Dummer. ゛☀
2017年08月16日
Dummer. ゛☀
Leaves Dropping From Christmas Cactus: Fixing Leaf Drop On Christmas Cactus Christmas cactus is relatively easy to grow, so if you notice Christmas cactus leaves dropping off, you’re justifiably mystified and concerned about the health of your plant. It isn’t always easy to determine what causes leaves dropping from Christmas cactus, but there are a number of possibilities. So why do Christmas cacti drop their leaves, you ask? Read on to learn more. [图片]Why Do Christmas Cacti Drop Their Leaves? Most frequently grown as a houseplant, it has the distinct property of blooming when the days are shortest, bringing color and brightness when most other plants are dying or settling in for the winter. This is all the more reason to be concerned when your Christmas cactus is losing leaves. Preventing and fixing leaf drop on Christmas cactus may be as simple as pinpointing the problem. When otherwise healthy leaves fall from Christmas cactus plants, there are a few possible reasons, with the following being the most common: [图片]Improper watering – When it comes to caring for Christmas cactus, overwatering is a big no-no. Although Christmas cactus requires more moisture than its desert cousins, too much water can cause the plant to rot – a common cause for leaves dropping from Christmas cactus. Although not quite so common, underwatering can also cause leaves to drop. As a rule of thumb, a Christmas cactus should be watered about once a week, or when the top of the soil feels dry to the touch. Water until moisture trickles through the drainage hole, then allow the pot to drain completely before placing it on the top. Don’t allow the soil to become bone dry, but never allow it to remain soggy. Water the plant sparingly during fall and winter. Poorly-drained soil – If your Christmas cactus leaves are falling off, it may also be caused by soil that is too dense or compacted. Christmas cactus requires porous, well-drained soil. If the soil is compacted or doesn’t drain well, it may benefit from repotting in a clean pot with fresh potting soil. A potting mix consisting of approximately 75 percent regular, good quality potting soil with 25 percent sand or perlite works well. Be sure the pot has a drainage hole. Temperature – Too much heat or cold may be to blame for Christmas cactus leaves dropping off. Christmas cactus doesn’t appreciate cold temperature. As a general rule, the plant prefers temperatures between 70 and 80 F. (21-27 C.) during spring and summer, and slightly cooler temperatures during fall and winter. Don’t allow temperatures to rise above 90 F. (32 C.). Cooler temperatures are beneficial while the plant is setting buds, but never below 50 F. (10 C.).[图片]Avoid sudden temperature changes and protect the plant from drafty windows and heat sources such as fireplaces or vents. If you’ve just bought your Christmas cactus or just moved it in from its summer spot outdoors, it’s probably experiencing a big change in environment. The shock of this change may make it drop a few leaves, and there’s not much that can be done about this. Light – Christmas cactus performs best in bright, indirect sunlight and may be damaged in bright, intense light, especially during the summer. One nice thing about a Christmas cactus dropping leaves is that these plants are very easy to propagate. What we refer to as “leaves” are really segmented branches. As long as they’re healthy looking, try planting your dropped branch in a new container – chances are good that it will take root and grow into a new plant.
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Dummer. ゛☀
2017年08月16日
Dummer. ゛☀
If you have been lucky, you might have received a Christmas cactus as a gift around the winter holidays. There are a couple of varieties of Schlumbergeria blooming cacti that tend to come into flower during certain holidays. These popular plants, which include Easter and Thanksgiving cacti, often come from the nursery bursting with blooms, but getting them to flower the next year can be tricky. This is where the importance of Christmas cactus feeding comes into play. Fertilizing Christmas cactus at just the right time can help ensure your plant is filled with brightly colored tubular blooms. [图片]Christmas Cactus Fertilizer Requirements Christmas cacti produce trailing jointed stems and wonderful flowers. These plants are epiphytes native to Brazil and make perfect houseplants. For the most part, the cacti are easy to care for and thrive in indirect, bright light, well-draining soil and average moisture. Christmas cactus feeding takes place monthly during the growing season, generally April through October. This will keep your plants in tip-top condition to form buds and eventually that fully bloomed look in time for Christmas. If you don’t want to keep your cacti gift, you don’t necessarily need to fertilize it. Eventually, the soil will release all it has to offer and the plant will slowly starve to death. New soil and the addition of houseplant food will perk up any lethargic cactus, but timing is essential. Christmas cactus set buds in fall during cooler days with shorter daylight hours. They need 12 hours of darkness to trick the plant into pushing out buds. Fertilizing Christmas cactus during the spring and summer months allows the plant to produce healthy growth to support the flowers. The plant also stores energy to fuel the production of buds. Once autumn arrives, a punishing routine of darker periods, cooler temperatures, reduced water and no additional food, drive the plant to form brilliant hot pink to red flowers. [图片]How to Feed a Christmas Cactus A bloom formula houseplant fertilizer or a half strength water soluble formula, such as 20-20-20 or 20-10-20, makes an ideal fertilizer for Christmas cactus. Feed monthly during regular watering from late winter to late summer. Alternately, you can choose a time release balanced plant food or one just slightly higher in phosphorus once per month in mid to late summer to enhance flowering. On alternate weeks, fertilize monthly with one teaspoon per gallon water of Epsom salts. This routine will fulfill all the Christmas cactus fertilizer requirements, including the high magnesium needs of this epiphyte. Stop fertilizing in late summer or flower production may suffer. There is no need to fertilize in winter, as the plant is not actively growing. Follow the application rates carefully on any formula to reduce the chance of salt build up in soil. If you are concerned about heavy salts, set the plant in the shower and drench the soil to release any stored salt. Allow the pot to drain freely and the planting medium to dry out before watering anew. [图片]General Care for Christmas Cactus Using a fertilizer for Christmas cactus is only part of the care ritual. These plants rarely need repotting since they like a crowded environment, but every few years it is necessary to replace the soil. A mixture of half potting soil and half sand or perlite is adequate. Prevent the bottom of the pot from standing in water or root rot may occur. Pinch off the ends of stems after blooming to encourage branching. You can actually root the cuttings after allowing the edge to callus in a sand/soil mixture or pure vermiculite. Move plants outdoors in summer if you wish, but avoid harsh sunlight which can burn the stems. Watch for mealybugs or scale insects and combat with a good horticultural soap spray. Other than that, Christmas cacti are one of the easiest houseplants to grow with year-end rewards to rival those holiday presents.
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Miss Chen
2017年08月16日
Miss Chen
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