动态第622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

Cotyledon orbiculata, also known as Pig’s Ear Plant, sometimes grow in an expansive pattern, which can impede on other plants. While they don’t take up too much water, they can still steal sunlight and root space for your other flora in your arid garden. You may just want to divide your Pig’s Ear because you want to have more of them. Either way, with the right tools and environment, you can get clippings to grow so you can have multiple Cotyledons in your possession.[图片]Step 1 – Divide Cutting When you divide a Cotyledon, you’re simply taking a branch off. Succulents don’t like metal cutting them. It’s best to snap your cutting off of the plant with your own two fingers. This minimizes the wound in the succulent branch, which should be firm, but slightly spongy when you pinch it. It would be like pinching an artery to slow the flow of blood; so it is with the sap in your Pig’s Ear stems. Make sure you wash your hands! You don’t want to cause infection to your plant because of some dirt on your fingers.[图片]Find the appropriate stem, which should have at least 2 inches (5 cm) of stem length and at least 1 or 2 nodes of leaves on it. Pinch it, and break it off. Step 2 – Get it to Root Now you have to get your cutting to root. First, dip your cutting stem-end first in rooting hormone, enough to coat the part that was broken off of the plant.[图片]Next, wet your paper towel sheets (about 3 of them) in your warm water, and wring out some of the water—you want them just one step above damp. You don’t want them to be wet enough to cause rot. Wrap your paper towel around the stem and lay it on a plate, but try to keep the leaves dry. Put it in a warm, sunny spot, keep the paper towel clean and change it out as necessary, repeating the wetting and wrapping process whenever you change the paper towel. Keep the paper towel damp, keep your cutting in the sun as much as possible, and in about 3 to 4 weeks, you should have a rooted cutting.[图片]Step 3 – Plant Cotyledon Now all you have to do is pot or plant your Cotyledon orbiculata. Do this by putting it in very well drained soil, which is made from cactus mix with a handful of pea gravel. Mix the two together, and make a well in the center using 2 or 3 of your fingers. You only want the hole as deep as the root is long, no longer. Gently place the rooted Pig’s Ear plant into the hole, and pat the soil around it. Mist the soil with a little water, keeping it sparing, and if you want to fertilize the soil, you can use an organic cactus-mix compost to do that. Just follow the directions on the package.[图片]Step 4 – Take Care You’re finished with the planting part, but that’s only half the story. You have to take care of it and ensure it grows into a healthy adult plant. Water it sparingly now, maybe once a week with a misting bottle right around the base of the plant. Keep your Cotyledon in full sun, or at least partial sun, and it should flourish for you with no problem.[图片]That’s it, you’re done. You’ve got a brand new plant exactly like the parent plant, and you can put it in any sunny spot you please.

...显示更多

0

文章

😀 😁 😂 😄 😆 😉 😊 😋 😎 😍 😘 🙂 😐 😏 😣 😯 😪 😫 😌 😜 😒 😔 😖 😤 😭 😱 😳 😵 😠

* 仅支持 .JPG .JPEG .PNG .GIF

* 图片尺寸不得小于300*300px

Dummer. ゛☀

2017年09月23日

The Prickly Pear Cactus (Opuntia sp.) thrives in hot, dry desert areas, growing 3 to 20 feet (0.9 to 6 m) tall, depending on the variety and growing conditions. It spreads to cover 3 to 15 feet (0.9 to 4.5 m). The leaves and fruit are edible once the spines are removed. Leaf pads are eaten as a vegetable. Fruit are eaten raw and used to make juice, jelly and candy.[图片]Prickly Pear Cactus is hardy in U.S. Department of Agriculture hardiness zones 3b through 11. Once established, Prickly Pear Cactus are easy to care for and tolerate drought for two or three weeks.[图片]Fill small pots or a seed tray with cactus soil. Break up any lumps in soil. Water the soil thoroughly and allow to drain. Sow the seeds in the late spring when night temperatures consistently reach above 45 degrees Fahrenheit (7 degrees Celsius). Rub the Prickly Pear Cactus seeds against a piece of sandpaper to scratch the seed coat. Scratched seeds germinate faster and more reliably than untreated seeds.[图片]Plant one seed per pot or plant seeds 1 inch (2.5 cm) apart in seed trays. Press the seed into the soil and cover with a fine layer of soil, barely 1/8 inch (3 mm) thick. Mist the soil surface with a fine spray of water. Cover the tray with the plastic lid or put individual pots in plastic bags. Cut a small hole in the plastic to create a vent.[图片]Place the pots or tray in a sunny window or under artificial lights. Check the soil daily for moisture and temperature. Ideal soil and air temperatures for prickly pear cactus is 70 degrees Fahrenheit (21 degrees Celsius). If heat builds up under the plastic, move the container or open the vent further to release excess heat. Water the soil as needed with a fine mist, keeping the soil moist but not wet.[图片]Inspect the seedlings daily. Cactus that turn yellow need more light. Brown or red cactus are receiving too much light. Transplant the seedlings into larger pots or outside once the roots are well-developed. Place the transplants in full sun spaced 24 to 36 inches (60 to 90 cm) apart. Keep the soil moist for the first two weeks or until the plant has adjusted to its new location. Increase the time between watering once the cactus are established, allowing the soil to dry out slightly.[图片]Fertilize with a balanced fertilizer such as 10-10-10 to encourage pad growth. If you prefer to encourage flowers and fruit, use a low-nitrogen fertilizer such as 0-10-10. Tips Harvest Prickly Pear Cactus seeds from the ripe fruit of a Prickly Pear Cactus. Wash the seeds to remove all pulp, and dry them on a paper towel in a warm place for a week or two until completely dry. Store seeds in an air-tight container in a cool, dark place until ready to plant the following spring.[图片]Warning Prickly Pear Cactus earn their name. Wear gloves and handle the plants carefully, the spines are sharp and cause painful irritation.

...显示更多

0

文章

😀 😁 😂 😄 😆 😉 😊 😋 😎 😍 😘 🙂 😐 😏 😣 😯 😪 😫 😌 😜 😒 😔 😖 😤 😭 😱 😳 😵 😠

* 仅支持 .JPG .JPEG .PNG .GIF

* 图片尺寸不得小于300*300px

Dummer. ゛☀

2017年09月23日

Cacti growing in the wild with paddles and branches tend to drop them to the ground where they root in the rainy season. This is a form of vegetative self-propagation. Even a smashed cactus will attempt to grow roots from the pieces that make contact with the ground. Prickly Pear Cactus (Opuntia compressa), which grows in U.S. Department of Agriculture plant hardiness zones 4 through 9, forms colonies with its paddle-like branches through self-propagation. It is possible to regrow a cactus from an arm if taken from a healthy cactus.[图片]Timing While you can root a cactus branch any time of year, rooting while the cactus is actively growing gives the best chance of success. Try rooting the arm in late spring or summer while nighttime temperatures stay above 60 degrees Fahrenheit (16 degrees Celsius). When temperatures fall below 60 F (16 C), the development of roots slows and the arm dries out before rooting. Branches taken from dormant cacti have the worst chance of rooting.[图片]Drying Once the arm is cut or falls off the cactus, let it dry at room temperature in a shady area for two to seven days. The cut end needs to callus over. This hardening of the wound prevents rotting. It also stops plant diseases from entering through the wound and infecting the cactus arm.[图片]Rooting Mixture The soil for rooting cactus needs to drain quickly, but hold some moisture near the forming roots. The most common mixture is half organic and half inorganic materials. Peat moss holds moisture and provides slow-release nutrients for the developing roots. Use coarse-textured sand, which does not compact down like fine-textured sand. The sand improves the drainage properties of the rooting mixture.[图片]Potting Handle the cactus piece with care so it does not stab your fingers. Use heave-duty gloves, tongs or a folded newspaper wrapped around the prickly piece when moving it. Avoid touching the piece with your hands if it is spiny. Press the cut end of the cactus into the soil mixture. If the branch is large, bury the bottom part of the cactus until the soil supports the branch.[图片]Rooting Most cacti will form roots in four to six weeks during the growing season. Keep the soil damp by misting the soil, but do not over-water the rooting branch. Water deeply, but do not let the container sit in water, which will lead to rot. Once the roots are established, then the plant pot will lift up when the arm is gently picked up. Let the soil dry between watering sessions once the roots develop.

...显示更多

0

文章

😀 😁 😂 😄 😆 😉 😊 😋 😎 😍 😘 🙂 😐 😏 😣 😯 😪 😫 😌 😜 😒 😔 😖 😤 😭 😱 😳 😵 😠

* 仅支持 .JPG .JPEG .PNG .GIF

* 图片尺寸不得小于300*300px

Dummer. ゛☀

2017年09月23日

Succulents are a favorite group of plants for many indoor gardeners. Succulents and cacti are part of the same group of plants. They have the advantage of growing slowly, requiring minimum care and not outgrowing their locations rapidly. They are simple plants; they require direct sun, well-draining soil and rarely, if ever, need to be fertilized. Sandy soils are best. It is possible to purchase cactus mixes that are sandy with a bit of gravel. A great deal of organic matter is not necessary. Watering is done occasionally. When you think of the origin of these plants, a hot, dry climate with lean soils and not a great deal of rainfall give you the framework of what they expect.[图片]Succulents can be propagated in several ways. It is unusual for them to bloom and then produce viable seeds. The usual way is called vegetative propagation. It is essentially creating a clone from the original plant.[图片]Division or Separation Many succulents multiply themselves through division, but some cacti will have small plants appear along the ribs or leaf edges of the plant. When the plantlets are big enough to handle easily, they can be removed.[图片]With division of other succulents, little plants come up surrounding the parent plant when it is mature. Eventually, more little plants come up and surround the larger surrounding plants and the container is filled. The plant and soil can be taken from the pot and the small plants gently removed. Water the plant well before taking it out of the container so more soil will adhere to the roots. There needs to be roots on the small plants for them to grow. If they are without roots, it may take a long time for roots to form. Pot the little ones in containers. If the little plants are without roots or they broke off, see the information below on callusing.[图片]Cuttings and Callusing A few succulents can be propagated by taking cuttings off the original plant. Sometimes it is because the plant has been damaged or a misplaced elbow and an unceremonious freefall to the floor. Unfortunately, the broken part will not repair and grow again, but the broken segment can be used to generate another plant. The important part is that the broken piece cannot be potted up immediately. It needs a period of time to dry or “callus.”[图片]If the freshly cut piece comes in contact with damp soil, it will rot. Let the cuttings sit for a few days or longer for big pieces. After a period of time, the damp, broken area forms a tough skin or callus over the tissue. The callused plant part can be placed in slightly damp soil. Embed the piece very shallowly. If it is placed too deeply, it will not grow. It may be necessary to support the small plant by having it lean on a craft stick or tongue depressor or against the side of the container. It often takes many months for succulents to form roots. Do not place small plants on a cold window sill or close to a cold window because it will take even longer to grow roots. If a full grown leaf or branch is broken off a succulent like Haworthia or Euphorbia after callusing, it could grow roots. However, if the leaf is broken off Aloe vera, it will not.[图片]There are enough differences in the world of succulents that one size or one rule does not fit all. Smart Gardeners are discovering this continually when learning about plants. Invite a succulent home. They make mannerly and attractive houseguests.

...显示更多

3

1

0

文章

😀 😁 😂 😄 😆 😉 😊 😋 😎 😍 😘 🙂 😐 😏 😣 😯 😪 😫 😌 😜 😒 😔 😖 😤 😭 😱 😳 😵 😠

* 仅支持 .JPG .JPEG .PNG .GIF

* 图片尺寸不得小于300*300px

Dummer. ゛☀

2017年09月23日

Crassula ovata, commonly called Jade Plant, is among the most common houseplants, although they are hardy outdoors to United States Department of Agriculture plant hardiness zones 10 and 11. Native to southern Africa, this plant is easily recognized by its smooth, stubby, succulent leaves. They propagate easily from cuttings and because they are so tolerant of neglect, newly propagated Jade Plants make excellent gifts for new gardeners.[图片]Take a cutting approximately 3 inches (7.5 cm) long from a stem of a mature Jade Plant. You can take multiple cuttings if you wish to propagate more than one plant. Each cutting should have at least two good sets of leaves. Remove the bottom set of leaves from each cutting. Jade Plant leaves grow in pairs opposite each other on the stem.[图片]Set the cuttings out to dry overnight to allow the cut ends of the plant to callous, reducing the chance of decay when planted in soil. Dip the leaf nodes and cut ends into a rooting hormone powder, if desired. Rooting hormone encourages roots to develop faster, but isn’t required to successfully propagate Jade Plants.[图片]Plant the cuttings in a potting mixture with plenty of drainage so that the bottom leaf nodes are buried in the soil. A potting mix with peat moss provides good drainage, but some gardeners prefer to propagate Jade Plants in moist sand. Water the cuttings frequently to keep the soil moist, but not wet. Succulents such as Jade Plants store water in their leaves and may perform poorly with too much water.[图片]Transplant the cuttings after a few weeks when the plants begin to grow or substantial root growth occurs. The plant’s energy is channeled to root development, so growth above the soil usually doesn’t occur at all until healthy roots are established. If the plant appears to be growing above the soil, this is a good sign that roots are well established and it’s time to transplant the new Jade Plant into a larger container.[图片]Warning Jade Plants are potentially invasive outdoors if pieces of the plant fall into natural areas. In order to prevent this problem, only plant jade plants outdoors in a controlled planting bed in USDA zones 10 and 11 and properly dispose of all plant pieces as they fall off the plant.

...显示更多

2

1

0

文章

😀 😁 😂 😄 😆 😉 😊 😋 😎 😍 😘 🙂 😐 😏 😣 😯 😪 😫 😌 😜 😒 😔 😖 😤 😭 😱 😳 😵 😠

* 仅支持 .JPG .JPEG .PNG .GIF

* 图片尺寸不得小于300*300px

Dummer. ゛☀

2017年09月23日

Portulacaria afra, (known as Elephant Bush) is a perennial succulent native to South Africa. It thrives in Sunset Climate Zones 8 through 9 and 12 through 24. This plant reaches heights of 3 feet (90 cm) with a spread of 4 feet (1.2 m) and adapts to either full sun or shade. Elephant Bush also adapts to a range of soil and is not particular about the pH, but does require well-drained soil.[图片]1. Cut a 4- to 6-inches (10- to 15-cm) cutting from the growing tip of your Elephant Bush with a clean sterilized razor blade. Pruning shears or scissors can bruise the stem causing delayed healing. 2. Remove the bottom leaves from the stem cutting, leaving a 2- to 4-inches (5- to 10-cm) section of the stem bare.[图片]3. Dip the bottom 2 inches (5 cm) of the stem of your Elephant Bush cutting in rooting compound. Tap the stem against the container to remove excess powder. Many prefer to pour the rooting powder into a paper cup and then dispose of the excess powder and cup together. This prevents contaminating the container of rooting powder. 4. Place the cutting in a warm well-ventilated area to heal and form a callous. Healing time varies, but typically ranges from a few days to a week for Elephant Bush.[图片]5. Mix four parts sand or perlite with one part potting soil and fill a 4-inch (10-cm) pot with the mixture. Firm the soil down with your hands to level the surface. This creates soil that drains well and provides good aeration for your cuttings. 6. Insert the stem of your Elephant Bush into the mixture to a depth of 2 inches (5 cm). Firm the soil around the stem of your cutting with your hands to secure it in the soil.[图片]7. Add a 1/4- to 1/2-inch (0.6- to 1.2-cm) layer of gravel over the top of the pot to conserve water and prevent soil from spilling over the edges when watering. 8. Water to moisten the soil. Although Elephant Bush does not typically require frequent watering, it needs even moisture for young roots to grow.[图片]9. Place your cutting in a sunny, warm, well-ventilated area. Move your Elephant Bush to its permanent location once roots have formed and the plant shows new growth.

...显示更多

2

1

0

文章

😀 😁 😂 😄 😆 😉 😊 😋 😎 😍 😘 🙂 😐 😏 😣 😯 😪 😫 😌 😜 😒 😔 😖 😤 😭 😱 😳 😵 😠

* 仅支持 .JPG .JPEG .PNG .GIF

* 图片尺寸不得小于300*300px

Dummer. ゛☀

2017年09月23日

Cacti and succulents are the perfect choice if you’re looking for indoor plants that almost look after themselves.[图片]Most cacti and succulents can be easily propagated from stem or leaf cuttings, as explained below. For those cacti whose stems are formed of segments (e.g. Prickly Pears, Christmas Cacti), always remove whole segments as cuttings – don’t split segments in half.[图片]Succulents that form clumps, such as Aloes, Haworthias and Agaves, should be divided by simply taking the plant out of its pot and splitting the rootball. Cacti that form numerous heads, such as many Mammillaria and Echinopsis can be divided, or cut off individual heads and use them as cuttings.[图片]How to Do It 1. Choose a healthy piece of stem at least 4 inches (10 cm) long and cut it off cleanly with snips. Use tongs when handling spiny cacti. For plants without stems, remove whole leaves by hand (don’t cut them off). Sit cuttings on a window sill and leave them until the cut surfaces have healed over. 2. Fill a 2.7 or 3.5 inches (7 or 9 cm) pot with cactus potting soil, then insert the base of each cutting to a depth of about 0.8 inch (2 cm), or deep enough that it stands upwards.[图片]3. Water liberally, then place the pot on a warm windowsill, preferably not in direct sunlight. Do not place cactus or succulent cuttings in a propagator or cover them with a plastic bag. 4. Keep an eye on the cutting and water when the compost feels dry. Most cactus and succulent cuttings will root within a month, but it may take longer for new growth to appear.[图片]

...显示更多

1

0

文章

😀 😁 😂 😄 😆 😉 😊 😋 😎 😍 😘 🙂 😐 😏 😣 😯 😪 😫 😌 😜 😒 😔 😖 😤 😭 😱 😳 😵 😠

* 仅支持 .JPG .JPEG .PNG .GIF

* 图片尺寸不得小于300*300px

Dummer. ゛☀

2017年09月23日

Gardening can be expensive when you start buying lots of plants and pots. What if you could double, triple, even quadruple the number of plants you currently have without spending a dime? If you have a little bit of time on your hands, along with a lot of patience, you can do just that. Let’s dig into a propagation of cacti and succulents![图片]Instructions 1. Propagation is the process of creating new plants from a variety of sources. This could be from seeds, bulbs, cuttings or other parts of the plant. Cacti and succulents are very easy to propagate. You can take pups from certain species, a stem cutting, or even root new plants from just one leaf! 2. Echeveria, along with other succulents that form rosettes, are a great example of plants that can easily benefit from beheading. If you ever notice your Echeveria with a gangly, long stem and a beautiful rosette on top, it could benefit from beheading — especially if it seems to be slow growing or not producing as many leaves. Use a sharp sterilized knife to cut the top part of the rosette off, leaving some of the stem on it. Let the cutting sit for a few days until it forms a callous on the bottom of the stem. This is a very important step, or you risk rotted stems or leaves.[图片]3. Once the cutting forms a callus, you can pot it in a container where it will form new roots and become a new plant. The remaining part of the stem can also form tiny plantlets at the top or down the stem, and you can eventually cut these off and form new plants in the same way.[图片]4. Propagating from pups is probably the easiest. Let’s use the Aloe plant as an example of a plant that will produce pups. Have you ever noticed when they produce a small offset that looks like the mother plant? This is a pup, and you can either cut it from the mother plant or carefully twist it off. These can generally be potted right away.[图片]5. Being able to propagate from just a tiny leaf might be surprising to the newbie gardener, but yes, you can! To try your hand at this form of propagation, take a leaf and twist or cut it from the stem. It’s very important to try to get the entire base of the leaf stalk. You can place the leaves on top of a layer of soil, where they will form a callus. This is where a shallow tray or saucer comes in handy, as it will give you room to do many at one time. It’s always smart to do a bunch, as you may only have success rooting half of them.[图片]6. In weeks to a few months you should notice them calloused over and producing roots. If the roots are growing towards the air instead of the soil, you might just want to turn the roots to help them find the soil or plant them in their own pot. You can also try placing some of the leaves with the base of the stem inserted shallowly into the soil. Place the trays in bright but indirect light so the leaves do not scorch.[图片]7. Your new little plant cuttings will need to be treated a little more gently than typical hardy cacti and succulents. They will not tolerate bright, direct sun. When it comes to watering, you want to first wait until they have calloused and in some cases, formed roots. Mist lightly in the beginning until roots appear, and then you can begin watering them more frequently. In general, they will need to be babied and watered a little more often in the beginning, but the soil should still dry between waterings. There can be a little bit of trial and error, depending on your individual house. A house that’s drier because of air conditioning or radiators will mean you need to water your cuttings more frequently than if they are in an area with high humidity.

...显示更多

2

0

文章

😀 😁 😂 😄 😆 😉 😊 😋 😎 😍 😘 🙂 😐 😏 😣 😯 😪 😫 😌 😜 😒 😔 😖 😤 😭 😱 😳 😵 😠

* 仅支持 .JPG .JPEG .PNG .GIF

* 图片尺寸不得小于300*300px

Dummer. ゛☀

2017年09月23日

Growing cacti and succulents from seed is relatively straightforward, and can produce a diverse collection of plants in only a few years. There are more than 2,000 species of cacti and succulents suitable as tabletop potted plants or tall floor plants. Cactus and succulent seeds are generally available from commercial seed companies.[图片]1. Clean propagation pans by washing them with disinfectant. Pans should be small and shallow, no more than 4 inches (10 cm) deep and 6 inches (15 cm) in diameter. There are many different suggested growing media formulas to experiment with. One formula calls for mixing a coarsely sifted organic growing medium, such as commercial potting soil, with an equal volume of sharp sand, perlite or pumice for drainage.[图片]2. Pasteurize your growing medium by baking it in an oven at 300 degrees Fahrenheit (150 degrees Celsius) for 30 minutes. Allow it to cool and wet it thoroughly. Let it drain but not dry out. Fill the propagation pans with the moist soil mixture to about 0.5 inch (1.2 cm) below the rim.[图片]3. Sow seeds in the pans around the end of April. Plant seeds as deep into the soil as the seeds are wide and press down lightly. Cover small seeds with a sprinkling of sand to hold them in place. Seed spacing will depend on the species of cactus or succulent you are germinating. Cover the pans with clear plastic or glass. Place them in a bright location but out of direct sun. Keep temperature around 70 degrees Fahrenheit (21 degrees Celsius). If soil seems too dry, spray lightly with water. Be sparing. Too much water can drown the seed. Don’t let soil dry out.[图片]4. Watch for germination. Most cacti and succulents will germinate within three weeks but some species require more time — up to a year. When seedling plants appear, raise the cover during the day for ventilation. Watch soil moisture. Don’t allow soil to dry out but also don’t saturate it. Keep temperature between 50 and 70 degrees Fahrenheit (10 and 21 degrees Celsius).[图片]5. Transplant your plants into their permanent pots. Most cacti and succulents will be ready to transplant in 6 months to a year after germination. The right growth size for transplanting will depend on the species you are growing. Most cacti can be transplanted when they are the size of a large marble. Many other succulents may be transplanted when they are 2 to 4 inches (5 to 10 cm) tall. Gently lift the plants from the growing medium, set into the soil of the new container, firm the soil around the roots and water well.

...显示更多

1

0

文章

😀 😁 😂 😄 😆 😉 😊 😋 😎 😍 😘 🙂 😐 😏 😣 😯 😪 😫 😌 😜 😒 😔 😖 😤 😭 😱 😳 😵 😠

* 仅支持 .JPG .JPEG .PNG .GIF

* 图片尺寸不得小于300*300px

Dummer. ゛☀

2017年09月23日

Growing plants from seed is not as hard as you might think – even though many of us have tried and failed! One of the most common mistakes people make is planting the seeds too deeply. You should only plant a seed as deep in the soil as the seed is wide. When seeds are planted too deeply the tiny plants emerge and begin to grow but do not reach the surface before they run out of stored food. Follow these instructions for growing cacti from seed and you will surely be successful.[图片]Seed It is best to use fresh seed when growing most cacti. Seed can be obtained from a commercial source or collected from a plant in your collection. Take care when collecting seed from a cactus collection. Some cactus species hybridize freely and true seed cannot be assured unless pollination has been monitored carefully.[图片]Soil A good potting mix, amended with ½ its volume of granite, perlite or pumice for drainage, makes a good mix for growing cacti from seed. It is important that the soil be as pest-free as possible. To pasteurize soil, put it in a shallow heatproof pan, place it in the oven at 300°F (150°C) for 30 minutes. Most commercial soils are at least pasteurized, if not sterilized. Check the label.[图片]Planting Be sure that all containers to be used are clean. The type of container is not important, but shallow ones are preferred. Water the soil thoroughly and let it drain completely before planting. Spread the seed evenly over the top of the soil. Cover the seed lightly with the mix or very fine sand. When planted, cover the container with any transparent lid. This will retain moisture and allow light to reach the seedlings.[图片]Germination Cactus seeds need both light and warmth to germinate. A sunny window is a good location, but be careful the light is not too strong and therefore too hot. The moisture retained by the cover should be sufficient to germinate the seed. Most cactus seeds germinate within 3 weeks, but some take much longer – be patient. Once the spines are showing, raise the cover for ventilation during the day. Do not allow the soil to dry out. The amount of water will depend on how much light and heat the seedlings receive. Watch the seedlings carefully. Do not swamp them in puddled water but do not let them dry out completely.[图片]Repotting Seedlings are ready to transplant into larger containers when they are the size of marbles between 6 months to a year after germination. Be sure the soil mix is very well drained, and the container is no larger than twice the diameter of the plant. At this size, plants can be grown in clumps or groups of 6-8 per pot until they are about 1 inch (2.5 cm) across, then separated and individually repotted. Lift the small plants carefully from the growing mix, place in the new container, firm the soil around the roots, and water in.[图片]It is usually best to let the young plants recover from transplanting in a shaded area. Even in cacti that naturally grow with full sun, seedlings will be tender to full sun until they are older. Acclimate a young plant to the sun gradually beginning when it is about 1 inch (2.5 cm) across. It is often easier to acclimate young plants to the sun in the winter, and provide some shade in the summer until they are about 3 inches (7.5 cm) across.[图片]Fertilization Fertilize young seedlings monthly in the growing season, usually the warm season. Use a formulation specifically for cactus, or an all purpose soluble houseplant formula at ½ the recommended strength.

...显示更多

0

文章

😀 😁 😂 😄 😆 😉 😊 😋 😎 😍 😘 🙂 😐 😏 😣 😯 😪 😫 😌 😜 😒 😔 😖 😤 😭 😱 😳 😵 😠

* 仅支持 .JPG .JPEG .PNG .GIF

* 图片尺寸不得小于300*300px