动态第624页 - 绿手指 - 养花技巧、花生病了怎么办、花园打理和设计

2017年09月23日

Kalanchoe blossfeldiana, also known as Flaming Katy is a tropical succulent that is native to Madagascar. This flowering plant is most commonly grown as a houseplant but grows well outdoors in U.S. Department of Agriculture plant hardiness zones 10 and 11. A short-day plant, Flaming Katy produces blooms during the winter months. Young Flaming Katy plants have smooth stems and thick leaves. The plant roots readily from a vegetative shoot and many growers use this type of propagation for Kalanchoe blossfeldiana production. Commercial growers use intermittent mist and heat mats to propagate Flaming Katy, but you can make Flaming Katy cuttings without a professional setup.[图片]1. Cut cleanly through a vegetative stem of the Kalanchoe blossfeldiana. This is a stem that has no flower growth. Make the cutting at least 3 inches (8 cm) long. Set the cutting in an empty pot for two or three days to allow a callous to form over the cut flesh of the stem. The callous keeps the cutting from rotting in the growing medium.[图片]2. Mix together equal parts of sand, perlite and peat moss to create a quality growing medium for Flaming Katy cuttings. Fill a sterile pot with the growing medium and water the medium lightly. The size of the pot dictates how many cuttings you root per pot. Pots that are 3 or 4 inches (8 or 10 cm) around hold one cutting, while 5- or 6-inch (13 or 15 cm) pots hold two or three cuttings.[图片]3. Make a hole in the growing medium and stick the calloused cutting into the hole. Firm the soil around the cutting to keep the Flaming Katy upright. Set the pot in a bright location that has an average temperature of about 70 degrees Fahrenheit (21 degrees Celsius). Avoid direct sunlight on the cuttings. 4. Mist the cuttings several times per day. Remove cuttings that show signs of fungal growth. Check for roots after about two weeks. Gently pull on the cuttings to feel for some type of resistance that would signify root growth.[图片]5. Transplant the new Kalanchoe blossfeldiana plants into separate growing pots when the roots have reached about 1 inch (2.5 cm) in length. Treat the plant as a seedling for the first few weeks. In other words, avoid drafts, direct sunlight and drought conditions. When you see new growth on the Flaming Katy plants, place them as desired in the home.

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2017年09月23日

Growing a collection of succulents for your indoor garden starts with one you already own.[图片]1. Cut the Heads Any healthy succulent is a candidate for propagation, especially those that have central, trunk-like stems. If propagating from a rosette-style succulent, you can begin at step 2. Otherwise, use a sharp pair of scissors to snip a leaf-covered section of one of the stems that’s at least 3 inches (7.5 cm) long. This is your cutting. If your plant’s stems are looking bare and you can’t find 3 inches (7.5 cm) of lush growth to work with, instead cut at least 1 inch (2.5 cm) under the best-looking bunch of leaves.[图片]2. Pluck Leaves Succulents will propagate from individual leaves, too. You can either pluck leaves from your clippings or from the parent plant. Hold the fleshy leaf close to the stem. Twist gently to remove cleanly. Any fat, juicy leaves will fall off with ease. Others you may have to coax off. What’s left on the leaf’s stem is called meristematic tissue, and it looks like a potato eye. This is where small new roots and leaves will start to emerge a few weeks after beginning step 3.[图片]3. Arrange and Water Place your clippings and leaves, cut ends up, on a dish filled with fast-draining soil and facing indirect sunlight. Leave for about three days or until the ends callus over. Once that happens, use a spray bottle to squirt everything five to six times until the soil is moist but not soaked. Repeat whenever the soil is dry, roughly every four to five days. In about three to four weeks, tiny pink roots will start to sprout from your clippings. Be patient, observe, and keep watering.[图片]4. Tend To The Pups Six or seven weeks after starting the propagating process, you’ll notice baby pups (i.e. tiny leaves, i.e. the cutest things you’ve ever seen) emerging from the parent leaves. The parents may look shriveled—this is because they are feeding the pups with their own water and nutrients. It’s now time to transfer your cuttings and leaves to containers of their own, at least 4 inches (10 cm) in diameter. Cover the new roots with 0.5 inch (1.3 cm) of soil, sit back, and watch your garden grow.[图片]

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2017年09月23日

Kalanchoe plants are thick leaved succulents that are often seen in florist shops or garden centers. Most end up as potted plants but areas that can mimic their native land of Madagascar can grow them outdoors. They sense the shorter days of winter and provide your garden with clustered red, yellow, orange, pink, purple, white and variant of these blooms in both winter and spring. Although these succulents can be propagated by seed in both indoor containers and outdoor gardens, growing new Kalanchoe plants from leaves is much simpler and less time-consuming. The ability of a new Kalanchoe to grow from a leaf allows the plant to reproduce successfully without developing energy-consuming seed pods, in U.S. Department of Agriculture plant hardiness zones 10 and 11.[图片]Cutting Selection Choosing the best cutting from your Kalanchoe in the late spring or early summer enables you to have a better chance at a successful new plant. As you evaluate your Kalanchoe, select a 2 inches (5 cm) long stem that has at least two leaves attached to it. It is good practice to avoid any flowering stems, so that the cutting concentrates on growth rather than reproduction. After removing the stem, you need to place this cutting in a dry area, such as on a gardening bench. The cut end needs to callus, or scar, before you attempt to plant it in a growing medium.[图片]Plantlet Alternative Instead of removing a stem-and-leaf combination from the Kalanchoe, you have the option of cutting a plantlet from one of the leaves. These succulents are known for their growths, or plantlets, that grow directly off the mother plant’s leaf edges. These plantlets are miniature leaf shapes that grow side by side along the leaf margin, resembling a decorative border. In fact, allowing these plantlets to remain on the leaf causes the Kalanchoe to appear misshapen and steals precious energy away from flowering activity. You simply cut a plantlet off the leaf at its connection point and allow it to callus before planting it in a pot. The mother leaf is not harmed from the removal process, because the plantlet grows on a small base. A new Kalanchoe plant flourishes from the callused plantlet alone, with proper care.[图片]Growing Environment Preferring warm climates, Kalanchoe leaf cultivation must have a desert-type soil for the best propagation results. A simple starter soil consists of perlite and peat moss in an equal ratio. This mainly sandy soil structure, along with nutrient-rich peat, allows the leaf to have a lot of air pockets and well-drained moisture for optimum growth. For one leaf or combination cutting, a 4-inch (10 cm) pot is sufficient to support the growing Kalanchoe in the spring or summer. The callused end simply rests just under the soil surface so that the remaining cutting does not rot from moisture exposure. Adding bottom heat from a heating pad helps the Kalanchoe grow vigorously from a small cutting. You may plant the cutting outdoors or pot it in a separate container approximately 2 to 3 weeks after you start the cutting in starter soil.[图片]Watering Considerations Kalanchoe leaf cuttings prefer dry soil conditions between irrigation sessions so that rot does not set in. In fact, a simple misting from a water bottle is sufficient for brand-new cuttings. After the leaf establishes itself, irrigation through microtubes and emitters is good practice to accurately control the watering. Narrow tubes with water emitter components allow water to seep into the soil rather than saturating the leaves from above with standard sprinkler systems. Once your cutting has grown a strong root system, the Kalanchoe withstands drought well and does not require as much water as a mature plant.

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2017年09月23日

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2017年09月23日

Sometimes it is very easy to identify the best way to propagate a cactus or succulent, and other times it is not as obvious. However before you start, the first thing to ask yourself is: What kind of plant do I have? If you don’t know the easiest way to learn is to organize the information you know about your plant into categories. How is it shaped? Is it tall and thin, short and round, or does it have many little leaves? How does it grow? Does it grow all by itself, are there many branches, or are there similar tiny plants that poke up out of the soil near it? Does it flower?[图片]Questions like these are the first ones to ask your self when considering propagation. The next thing to think about is how to propagate your cactus or succulent.[图片]Seeds Most cacti can be propagated by seed; however due to the slow growth of some species, sometimes other methods are more practical. Cacti with solitary growth habits are usually propagated by seed. Several species grow in this manner including: Notocactus spp. (now included in the genus Parodia) Neoporteria spp. (now included in the genus Eriosyce). Stem Cuttings[图片]Propagation by stem cuttings is easy and practical. Many cacti and succulents can be propagated by stem cuttings. In general, if the plant has an elongated stem region that is actively growing, propagation by stem cuttings should be a successful route. Some recommendations are: Prickly Pears and Chollas: Opuntia Columnar Cacti: Cereus, Trichocereus (now included in the genus Echinopsis) Pincushion and Globular Cacti: Echinopsis, Mammillaria Euphorbia Stapeliads Bryophyllum Kalanchoe Graptopetalum. Leaf Cuttings[图片]Most succulents are usually propagated by leaf cuttings. Genera typically propagated by leaf cuttings include but are not limited to: Gasteria Haworthia, Sansevieria Crassulaceae family (Kalanchoe, Sedum, Graptopetalum, etc.). Grafting[图片]Grafting requires a hardy rootstock which is compatible with the desired propagation candidate. This compatibility is very important. Without it, success in grafting in unlikely. For cacti and succulents the following rules and some successful grafts have been reported and are shown below: Rootstock: Hylocereus trigonus Compatible scions: Gymnocalycium mihanovichii, Echinopsis chamaecereus, Gymnocalycium denudatum, Parodia leninghausii, Cereus cristata, Parodia scopa, Mammillaria theresae, Rebutia pulchra Rootstock: Hylocereus undatus Compatible scions: Epiphytic cacti, like Christmas Cacti, most cylindrical and globular cacti Rootstock: Cereus repandus[图片]Compatible scions: Melanocactus, Rebutia muscula, Gymnocalycium mihanovichii ‘Hibotan’ Rootstock:Echinopsis spachiana Compatible scions: Cereus, Espotoa, Echinocactus, Lobivia (now included in the genus Echinopsis), Melocactus. Bulbils, Tubers, Plantlets, and Offsets[图片]Many succulents asexually propagate been means of underground lateral shoots. These shoots give rise to offsets or plantlets which can be severed in the spring or summer from the parent lateral shoot to produce a self-sustaining new plant. Aloe spp. and some Agave spp. form plantlets or bulbils on their flowing stalks. These plantlets and bulbils can be removed and planted as well. Kalanchoe spp. produce small plantlets on the scalloped edges of their leaves. These plantlets can also be potted in warm conditions to produce self-sustaining plants.[图片]Bulbils and Plantlets: Kalanchoe, Aloe, Agave murpheyi, Agave vilmoriniana, Agave fourcroydes Offsets: Echinopsis, Mammillaria, Agave, Aloe, Haworthia, Crassulaceae family, Kalanchoe, Sedum, Graptopetalum Tubers: Ceropegia.

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2017年09月23日

About a month ago I bought and planted some succulents. I love the different shapes they come in and I was determined to keep them alive. I researched how to transplant succulents for a long time before I took them out of their pots. I can safely say they are still green and healthy![图片]I rounded up the tips that I learned in one place for anyone else to learn from, but also so I don’t forget them next time I get some desert plants. Buy Few, Plant Many I was standing in the nursery with 7-10 different kinds of succulents scattered around my feet. That’s when my husband put the kabosh on my plan to GET THEM ALL and said I should choose four. Although that was the hardest decision to make, I was once again reminded that I am married to a wise man.[图片]Four pots of succulents from the nursery quadrupled as soon as I started planting them! I wanted to give them enough space so each plant got its own pot and before I knew it, I had waaayy too many succulents on my hands.[图片]Choose Green During my research I found out that the different colors of cacti aren’t just pretty to look at. They have a purpose! If you are going to be keeping your plants indoors make sure you only buy green cacti. The beautiful purple, orange and yellow colors will die if they don’t get enough heat and sun. Since I like to live with my air conditioner on during the summer only green succulents would survive.[图片]Replant Buds The rose shaped succulents often come with tiny buds growing at their base. These sweet little babies are easy to pull off and will survive if you stick their orange stems into some dirt. Guess what? Free succulents! I have actually seen tutorials where you can do this with almost dead leaves from succulents, but I haven’t tried it yet. With any luck I won’t ever have to buy succulents again. I will just start my own miniature farm in my windowsill.[图片]Break Up Roots Some of the succulents that I pulled out of their pots from the store had thick roots that were dying to break free of their walls. Although this isn’t just a tip for succulents, any time you are transplanting something be sure to break the roots out of their shape and spread them out a little before introducing them to their new pot. This helps them grow into the bigger pot.[图片]Mix Dirt and Sand I didn’t read this tip until after my planting job was over but I am going to go back and mix in 1/3 sand to my Miracle Gro soil. Succulents are desert plants and the sand mixture helps with drainage to prevent rotting.[图片]Don’t Water You read that right. As soon as your new plants are potted you are going to be tempted to fill up a watering can and finish the job. Instead, wait a week before their first watering in their new pots. This will give them some time to adjust to the new soil, apparently. Then water them about twice a month. Mine are durable, so even if I forget a month or two they happily bounce back when I remember.[图片]Indirect Sunlight Your green succulents will be happy in your home as long as they get enough sun. Don’t keep them in the closet. Put them on a windowsill or a table where they can drink in lots of natural light even when the sun isn’t directly over their pots.

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2017年09月23日

Although many cacti and succulents actually like a tight pot, there will come a time when you need to repot, or maybe you just want to take it out of it’s placates pot and put it in something nicer. But how do you know when a succulent or cacti needs repotting? [图片]Here are a few signs: If you can see that the roots are tightly packed or sticking out of the drainage holes If when watered the water just sits at the top of the soil and doesn’t soak through When the plant looks like it’s too big for the pot Or if the soil has become poor quality, such as it dries out quickly or has come away from the sides of the pot.[图片]A general rule of thumb is to repot every two years, at least as a way to provide fresh fertile soil. The best time to repot is at the beginning of a succulent’s growing season for the highest chance of survival. Early spring is the optimal period for most cases but take note, some do start growing in autumn or winter.[图片]How to: 1. Remove the plant from its original pot. You’ll see that the root system is really packed and has probably been choking in that pot![图片]2. Open up the compacted soil and try to gently spread out the roots. Clear away the old soil but be careful not to pull too hard or break them. It’s helpful to use a stick like a chopstick or stick to remove the old soil. Also look out for dead roots, which should be pruned off. You’ll want to choose a pot that’s bigger than the current one, but not too big.[图片]3. Place a few rocks at the bottom of the pot for drainage. Fill the pot about ½ full with potting mixture, put the plant on the mixture and add more of the potting mixture. You want to press the soil gently down so as to make it compact again. Do not water the succulents immediately after repotting. Wait a week to give them some time to adjust to the new soil.[图片]

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2017年09月23日

Succulents feature plump, fleshy leaves and stems that retain moisture, similar to a cactus. Many succulent varieties also produce attractive flowers in season that can brighten up a small dish garden. Most succulent plants thrive in pots, because they require minimal watering or maintenance and they also grow slowly so rarely require repotting.[图片]However, if the arrangement begins to outgrow its pot you can transfer the plants to a larger container at any time of year. Taking the time to repot properly ensures the continued health of the plant and allows you to retain the aesthetics of the original arrangement.[图片]Fill the new pot with a soil mixture formulated for cactus plants or create your own mix by combining equal parts potting soil and coarse sand or perlite. Use a shallow pot, 2 inches (5 cm) wider than the width of the entire succulent arrangement, with at least one bottom drainage hole. Water the potting mixture until it’s barely moist and the excess just begins to drip from the drainage hole. Scoop the succulents out of the old pot using the tip of a trowel or a large spoon. Lift the entire root system, taking care not to cut or break the smaller roots.[图片]Arrange the succulents as desired in the new pot, spacing the plants 2 to 3 inches (5 to 7.5 cm) apart in all directions. Make a small hole in the mix for each plant’s roots once you are satisfied with the arrangement and plant them at the same depth at which they were previously growing. Wait one week before watering the newly repotted succulents, so the roots can adjust to the new soil. Sprinkle the soil surface lightly with water to moisten, but avoid deep watering that causes wet soil, because it can result in root rot.[图片]Tip Succulents only require water when the soil has dried out almost completely. The plants rarely require fertilizing, although they can benefit from a light annual fertilization in spring.

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2017年09月23日

Cactus delights the eye with its other-worldly appearance and striking flowers, but it also requires repotting from time to time. This task is often avoided by home gardeners who are generally either unsure how to do it or fear they’ll kill the cactus. But the reality is that repotting cacti isn’t all that difficult.[图片]Here are some easy steps to repot a cactus: Step 1: Find Right Size Pot for Cactus When it’s time to repot a cactus, look for a container that’s about 2 inches (5 cm) larger than the one the cactus is currently in. If the container is too large, the soil will stay wet longer than desirable for a cactus, which likes heat and dry elements that are normal in the desert where it grows wild.[图片]Step 2: Assemble Materials for Repotting Cactus Have all the necessary materials on hand: cactus soil, larger pot, protective gloves or tongs to handle the cactus, and a bamboo skewer or long, slender stick. It’s also best to have newspaper or protective covering on the bench or area where the repotting takes place.[图片]A word about cactus soil is necessary. Most garden centers carry cactus soil, which is a mixture of peat, perlite, horticultural vermiculite and added nutrients. For a cactus garden, it’s important that the right soil be used. A small bag costs about $4 to $5 and goes a long way. Step 3: Spread Small Amount of Soil in New Container Place a small amount of cactus soil in the bottom of the new container.[图片]Step 4: Remove Cactus From Old Container Wearing gloves, and possibly a long-sleeved shirt if the cactus is large, gently lift the cactus from the old container. Tongs can also be used if the cactus has long and very sharp spines that may go through the gloves. For very small cacti, newspaper can be used. Examine the bottom of the cactus to see if there are mealy bugs. Also check to see if it’s root-bound and, if so, gently break up some of the roots. This will permit them to spread and grow in the new pot.[图片]Step 5: Place Cactus in New Container Carefully set the cactus in the new container. If the bottom of the cactus is not level with the the rim of the pot, remove it and add a little more soil. Keep doing this until the cactus is level with the rim.[图片]Step 6: Fill in Soil Around Cactus Make sure to fill in soil all around the cactus. Use the bamboo skewer or a long, slender stick to check around the sides of the pot. Shake or jiggle the pot to fill in the soil in areas where there may be a pocket. A gentle tap on the counter or surface will also help soil settle in the voids between the roots.[图片]Step 7: Wait a Day Before Watering Give the cactus a day after repotting before adding any water. Use care when watering, since overwatering is one of the biggest problems with cacti. Let soil dry out completely between watering and occasionally give the cactus an overall spray of water.

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2017年09月23日

A Jade Plant (Crassula ovata) can be a joy for years and years in your home, but after a while it will need repotting to allow the plant to continue to grow roots to support the ever larger branches and leaves. If left untended, a large Jade Plant is likely to tip over from becoming top heavy. To repot large Jade Plants be sure to have all of your supplies ready in early spring as the Jade Plant starts to show new growth.[图片]Step 1: Spread out a layer of newspaper on the floor to catch dropped soil. If you can’t move your Jade Plant to an open area in your home, then move items around your plant out of the way so you have plenty of room to work around the plant.[图片]Step 2: Place a large pot over the center of the newspaper. The new pot should be only 2 to 3 inches (5 to 7.5 cm) larger in diameter than the existing pot. Step 3: Fill the bottom of the pot an inch (2.5 cm) deep with gravel to help aid in drainage. If you are worried about your plant tipping over, place a brick on top of the gravel to add more weight to the pot.[图片]Step 4: Pour in succulent soil over the gravel and brick, if using one, to fill the bottom third of the pot. Carefully hold the base of the Jade Plant and lift it out of the pot it is in and place it in the center of the new larger pot.[图片]Step 5: Make sure the top surface of the Jade Plant’s root ball is just slightly below the rim of the new pot. Lift the plant, if needed, to add or remove soil. With the Jade Plant positioned in the pot, fill in the surrounding areas with fresh soil until the pot is filled.[图片]Step 6: Position the new pot in a sunny area and water the Jade Plant as you normally would for its weekly watering. The Jade Plant should not need to be repotted again for a number of years.

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