Beneficial nematodes will help wipe out the larval stages. While many cultivars can still grow in hostile conditions, they slow down significantly in speed. Dwarf banana trees are a full-sun plant. Q: Why are the edges of the leaves of my plant turning brown? Fill around the plant with new sterile potting soil that’s been fertilizer-amended. Full sun conditions will lighten the leaf coloration to a yellow-green tone, but will aid in flowering. Soil requires: The well-drained and sandy soil is best for a banana tree. And no, that wasn’t a typo. Which cultivar do you prefer the most, and do you grow them as ornamentals or fruiting plants? Some of these may be affiliate links, meaning we earn a small commission if items are purchased. The most reliable way to propagate most cultivars of bananas is by tissue culture. As the flower petals begin to draw back, you will see very young bananas begin to form. However, later study revealed that all edible bananas came from hybridization of two wild species, Musa acuminata and Musa balbisiana, regardless of whether they were cooking or dessert bananas. To share feedback or ask a question about this article, send a note to our Reviews team at firstname.lastname@example.org. Here is more about our approach. If you get frost in the winter, you may need to bring your dwarf banana tree indoors. If it’s soggy, you’re overwatering. Mottled or striped foliage will result, and the mottling can spread to the fruit as well. For young plants, use 65-75% strength fertilizer, as they don’t need quite as much. Water the site and lay down a six-inch layer of mulch to. Dwarf banana trees are a member of the Musa genus that -- depending on the cultivar -- grows in U.S. Department of Agriculture plant hardiness zones 5 … The skin starts out green and turns yellow when the banana is ripe, and the inner flesh is white. A minimum of eight hours of sunlight is required to … They might require a bit more maintenance than some plants, but it’s well worth the effort. This cultivar tends to reach 7-8′ heights. Before planting your banana, mix some fertilizer thoroughly into your potting soil or planting site to give it a boost. Dwarf cavendish banana trees can grow indoors and outdoors and produce large bunches of bananas every harvesting season. In fact, it caused the commercial banana industry to stop growing the Gros Michel cultivar of banana entirely. This will change depending on your weather conditions. Epic Gardening occasionally links to goods or services offered by vendors to help you find the best products to care for plants. Source: Tony Buser, Banana hand above flower. This type of fertilizer contains 6% nitrogen, 2% phosphorus, and 12% potassium. Overwintering Dwarf Banana Trees Outdoors. Most banana trees thrive in heat and humidity, so when you plant two banana trees next to each other, they pack in heat and humidity. Use such soil, which is completely rich. Cavendish bananas account for over 90 percent of Australian production and includes varieties such as Hybrids, Williams, Mons or Dwarf Cavendish. Water the tree often to keep the soil continuously damp but not waterlogged or muddy. Spread a 6-inch-deep layer of mulch, such as wood chips or bark fragments, around your dwarf banana tree. It’s best to only remove leaves when the leaf has become yellowed or browned and has shriveled on its own. Your best bet in a home gardening scenario is to use a product such as Bonide Copper Fungicide. Tolerant to a wide range of soils, bananas will perform best when grown in rich soil conditions. Adding an insert is a smart investment that's pure win-win—it'll keep you warm and slash your heating bills all at once. While it produces stunningly beautiful flowers and fruits, the fruit tends to be inedible. Your plant will stop growing when it begins to become rootbound. A: While there have been drastic problems in the commercial market with Panama disease, bunchy-top disease and Moko disease, bananas are nowhere near extinction. This is a sign that it’s time to trim it and bring the corm or root base indoors. Some light is preferred, but it will handle low-light conditions during the cold season as well. Banana pups grow in a cluster around the base of the parent plant. Duploid hybrid of Musa acuminata. Dust off any loose soil, then set it into its new pot. Since so many varieties of dwarf banana tree are hybridized, it’s best to buy live plants from suppliers. There is a type of thrip called the Banana Rust Thrip which feasts upon the leaves of banana plants as well as on the peels of their fruit. Dwarf Banana Tree Care The Dwarf Banana Tree is a tropical plant with broad paddle-shaped leaves that grow out from its stalky center. Bananas require moderate amounts of water to perform well. With the right care, you too can enjoy this leathery-leaved plant. Share your stories in the comments below! While Dwarf Cavendish bananas are susceptible to many diseases in their native habitats, the only major one that affects ones in the United States is root rot, which is where the rhizome rots and the plant decays from cold and wet soil. For banana trees that are planted outside, you can dig up the rhizome and replant it in the spring or you can cover the dormant plant with blankets and tape or twine. Source: Scot Nelson, Musa x paradisiaca, ‘Raja Puri’. As it approaches wintertime, the leaves along the outside of the dwarf banana tree will begin to yellow along the edges or go yellow-brown and withered. As Banana grows best in the tropical and subtropical regions so sunlight is required along with heat and humidity for its proper growth. Pick a variety which is suited to your area. Black end can cause blight-like symptoms on fruit, and cigar tip rot starts in the flower and can turn fruit black and inedible. Source: Scot Nelson, 95 DIY Greenhouse Plans: Learn How To Build A Greenhouse, Common Hedging Diseases and How To Treat Them, Dwarf banana tree, Dwarf Cuban red, Dwarf Cavendish, Giant Cavendish, Williams Hybrid, Gran Nain, Chiquita, Lady finger, Sugar banana, Latundan banana, apple banana, silk banana, Pisang Raja, Brazilian, Raja Puri, Rajapuri, Red Tiger, Darjeeling banana, Flowering banana, Musa acuminata, Musa balbisiana, Musa x paradisiaca, Musa sikkimensis, Musa ornata, Warm tropical and subtropical regions, varies by cultivar. Snow blowers ease the burden of clearing your driveway or yard of heavy snow accumulation. Water only when the soil has dried out in the top half inch to inch, and try to maintain a moist but not soggy soil state. Red Tiger grows to about 7 feet. Maintain the soil quality by fertilizing every two months with a 6-2-12 fertilizer. As your dwarf banana tree is harvested, the adult tree will die back. Dwarf banana trees are a full-sun plant. Sticky traps work to capture the adult beetle, but for the larvae, beneficial nematodes are one of your best defenses. Dwarf Cavendish banana trees self-pollinate, meaning that they don’t need another tree nearby to help the flowers produce fruit. When it flowers, do not remove the leaves that shade the flower from the sun. Put the pot in the area which receives sunlight round the day but keeps it away from the windy regions. Overwintering plants require no fertilizer at all. The leaves will eventually become stiff and brittle, and the disease retards the plant’s growth. Aphids, nematodes, and beetles are common pests of the Dwarf Cavendish banana. If it’s already in a pot, simply take a sharp saw or knife and cut the plant off about 3″ above the soil level, leaving a flat top. Be sure it’s well-aged composted material. However, the Gros Michel variety of banana is very susceptible to older forms of Panama disease. Current Gran Nain cultivars have a similar flavor to the classic Gros Michel banana, but are a dwarf plant. If adding composted material in your soil mix, don’t use freshly-produced compost. A gnat infestation is a common occurrence for many homeowners. A midrange pH condition is ideal for bananas. Remove most of the suckers or pups from around the plant’s corm, only allowing the most vigorous to survive. At the same time that these were under fungal attack, the Gros Michel variety (unrelated to Gran Nain) was commercially destroyed. The lady finger banana is popular in certain regions such as Brisbane. They prefer a pH between 5.5 and 6.5, which is on the acidic side. To avoid bunchy top, wipe out aphids before they can cause the disease’s spread. Select the strongest-looking pup and allow it to remain in place. It adds just a bit of that lush greenery to your personal space. Keep the following in mind when planting a banana tree: Add plenty of well-composted manures or compost at planting time. Finally, the coquito, also called the banana fruit scarring beetle, will attack banana fruit in its adult form. It’s important to thoroughly clean tools you use on banana plants to prevent the spread of this fusarium fungi. When the parent plant dies back, the pup will take over the corm base and will continue to grow. The length of time before green sprouts appear depends on the variety of banana plant you have decided to grow. The leaves also occasionally are tinged with red. These micro-insects are a wonderful aid to your soil! Most home growers are less likely to have disease issues, so most of the time watering problems are the culprit. Beneficial nematodes will hunt out and kill the other varieties of nematode. Thus, virtually every edible banana available today is a hybrid cultivar of one or both of those two wild banana species. The fruit requires extra potassium to grow. Once you’ve separated your pups, you can then plant them along with their attached corm segment elsewhere. Here’s how you would plant the rhizome in the ground or in a pot: From the rhizome, a pseudostem will sprout. The leaf should easily pull off at that point. You may also need to remove the tiny “extra hand” that sits against the flower, as that will generally not fully fruit. All of these sap-sucking insects can be repelled with the application of some neem oil on all plant surfaces. Originating in East Asia, The Dwarf Banana Tree is relatively easy to care for, but does require ample humidity. Source: Starr Environmental, Dwarf banana tree, ‘Dwarf Cavendish’. Light. Most hybrid plants don’t produce seed, and if they do, it’s not viable. Expect to water the plant every two to three days. Mulch heavily but ensure it … This is a true hybrid of both Musa acuminata and Musa balbisiana. Inviting ladybugs and lacewings to help eat the eggs on your plants will also destroy this pest. This is currently the most popular dessert banana in the world, and the one most commonly imported. In most non-tropical areas, it can take longer than a year for some varieties to produce a flower stalk, and you don’t want to slow that process. Further, different diseases such as bunchy top or Panama disease can cause browning. Rotate the banana tree so each side of it gets equal light. Place your tree in a cool area inside your home. It can be transmitted by wind, water, movement of infected soil, or via farm equipment. not plant more bananas in the same soil or exact location. Try not to remove green and vigorous leaves unless they are really in the way. They’re described to have a slightly-acidic, apple-reminiscent flavor. For optimal health, keep a weed-free zone 2 feet around your dwarf banana tree. They also help control most soil-burrowing or soil-pupating larvae of other insects. Plant and grow the dwarf banana in soil that is rich with organic material. While they’re not true trees like apples or other fruiting trees, bananas can grow to be incredibly large. While it’s most common in Australia and some parts of New Zealand, occurrence of bunchy top disease has slowed in recent years. I created Epic Gardening to help teach 10,000,000 people how to grow anything, no matter where they live in the world. The Dwarf Cavendish banana tree gets its name because of its short stalk of eight to 10 feet. Bonide All-Seasons Horticultural and Dormant Spray Oil is a good choice. Increase the level of your mix to about 20% perlite to ensure good drainage. Dwarf Banana Tree Care. Before planting your tree, dig a one-foot hole. Also at risk for these diseases: Sigatoka leaf spot, black leaf streak, Panama disease/banana wilt, Banana bunchy-top disease, Banana mosaic disease, black end, cigar tip rot, Moko disease. Rajapuri bananas are a dessert banana in sweetness, even though by hybridization they fall into the plantain group. As long as you keep a watchful eye out for any problematic symptoms like leaf browning, you will have a beautiful tropical addition to your home! This article contains incorrect information, This article is missing information that I need. This protects your fruit from pests. If you can’t find that, a balanced 10-10-10 will work. If the neem oil doesn’t work, the Safer Brand Yard & Garden Spray will also work for these tiny pests. If it’s dry, you need to water more often. As an Amazon Associate, I earn from qualifying purchases. Under-watering will cause wilting or slow growth. Improve soil in a large area, at least three to four times the pot width and twice as deep as the pot. Have you grown bananas before? Be sure to keep some of the corm and its root mass attached to the pup. Source: Starr Environmental, Dwarf banana tree ‘Super Dwarf Cavendish’. At that time, you’ll need to re-pot it again to maintain its current size and encourage growth. However, it and all other Cavendish varieties are susceptible to a fungal disease that’s being called Tropical Race 4, a strain of the Panama Disease which wiped out commercial cultivation of the Gros Michel banana variety in the mid-1960’s. Using a pyrethrin spray such as Safer Brand Yard & Garden Spray can kill off what persists in plaguing your plants. While one could eat the fruits of this banana, it has poor flavor. Indoor bananas grow much more slowly. The Cavendish variety of bananas that’s widely available commercially right now is susceptible to a new strain of Panama disease, the Tropical Race 4 strain. A little more about me. It will take nine to 15 months before the tree starts flowering and an additional two to six months before the bananas are ready to be picked. It produces a plantain-style cooking banana which is popular throughout south America and in other parts of the world. For today, we’re going to focus primarily on dwarf varieties. Provide a grow light so it has the light it needs, and keep it in a location where it’s comfortable. Pest nematodes can be a problem for most plants, but root knot nematodes are especially problematic for bananas. There’s many different cultivars that share some of these names, but most are 7-9′ tall. These pest nematodes can spread deadly fusarium-type diseases such as Panama disease. You want it to be moist but not muddy, and your soil needs to be able to drain extra water easily. If you are trying to keep them in a dwarf ornamental status, keep them in partial shade. However, more than one tree can increase your crop yield. If you are growing your tree for its fruit, don’t cut it back to 3″ above the ground. Bananas are susceptible to root rot conditions with over-watering. Use 50% of the fertilizer you would use on an outdoor dwarf banana tree. While you may be able to remove thrips by hand, I recommend killing them with a spinosad spray. If planted in the ground, ensure that the soil maintains a nice level of moisture but isn’t wet, and water when the soil is dry in the top half-inch to inch. Both of these can be wiped out by removing the fruiting stalk, but the plant may not last much after the stalk is removed. Most outdoor dwarf bananas require about an inch of water per week per plant. A pseduostep looks like a stem, but it’s just a bunch of folded banana leaves. Before buying a Dwarf Cavendish banana tree, consider the following ideal growing conditions. Its name comes from its red-skinned fruit, very notably different from the modern supermarket bananas. You don’t need to be in the tropics to grow them, although they definitely love the warm weather. This is a triploid hybrid of Musa acuminata cultivars, popular as a small and firm dessert banana. However, carefully dig out the root ball of the plant and put it into a pot filled with potting soil, and bring that indoors for the winter. Fusarium oxysporum is a fungus that causes the dreaded Panama disease, also referred to as banana wilt. Source: Roopesh M P, Dwarf Banana Tree as bonsai. Once your plant has contracted the disease, it should be destroyed to prevent further spread. Fertilize outdoor dwarf banana plants once per month with an 8-10-8 fertilizer. Technically not a tree at all, the thick “trunk” of the banana tree is actually made up of tightly-clumped leaf stalks. The large corm and unusual root system provides ample below-ground food for this pest. The watering frequency will depend on if you planted the tree in the ground or in a pot—house plants in pots will dry out quicker than ones in the ground. Once your plant is in the soil, mulch around your plant to a depth of at least 4″ to help keep the soil moist and prevent weed growth. This type … If you plan to keep your dwarf banana tree in the same location, it’s good to remove all but one of the pups from the plant. Moko disease is a bacterial infection which is very difficult and expensive to control, but resistant cultivars are widely available. The banana plant can be a stunning ornamental houseplant if maintained properly. Everything You Need to Know About Christmas Trees, Fall Fertilizing: Essential Tips to Make Your Yard Grow, Everything You Need to Know About Willow Hybrid Trees, Everything You Need to Know About Burning Bush, Green skin before ripe; yellow skin when ripe, white flesh, Anywhere except parts of the North, Midwest, and Alaska, 9–11 in the ground; 4–11 potted on a patio or inside, Root rot, Tropical Race, Sigatoka disease. Dwarf banana plants prefer well-draining soil. Growing stuff like Boston ferns, crotons, bromeliads, or even a dwarf banana tree livens up the house or yard. Plant your seeds in a pot about a quarter inch deep and give it a good water so the soil is damp, banana plants like damp soil but not totally soaked. Adding some vermiculite or peat moss is also good for moisture retention. Cooler climates typically require less water. Likes moist but not wet soil. The banana that grows out of the flowers is the same size as a regular cavendish banana with a length of six to 10 inches. Those leaves help protect the flower and any subsequent fruit. The higher concentration of nitrogen and potassium allows for a greener plant and a quality fruit yield. Aphids in particular can be risky as they are carriers of the bunchy-top disease. Grow dwarf bananas planted in containers in a rich potting mix that has peat moss added to it. Yes. These can be carefully shorn from the corm, or base of the plant. The Williams Hybrid reaches heights of about 8′ tall. Another thrip, the Corky Scab Thrip, can destroy bananas rapidly. That’s how the majority of banana plants are produced for commercial sale. Mealybugs can pay a visit to your dwarf banana tree, as can spider mites or aphids. You’ll need to fertilize your dwarf banana tree on a monthly schedule for best growth. Tissue culture enables growers to produce perfect clones of the original parent plant. Add shredded leaves inside the chicken wire to make a shield from the cold. Both too much and too little water can cause leaf browning. It is essential to be sure your plant will have enough warmth, as well. The eggs it lays turn into larvae which burrow into the soil at the base of the plant to eat the roots and pupate. They enjoy soils which are 5.5 to 7 pH. These tropical species prefer locations that rarely get below 57 degrees Fahrenheit, and prefer it to be well above 60. Keep your pots somewhere that doesn’t get below 60 degrees Fahrenheit. Once these have grown 3-4 leaves, they’re ready to separate. The well-drained and sandy soil is best for a banana tree. Instead of trying to get rid of them once they infest your plant, you can preemptively spray the tree with an insecticide or treat it with natural pest control methods. You can then remove the parent plant’s foliage and let the pup develop into an adult. Before purchasing a Dwarf Cavendish banana tree, read our guide to learn how to care for one and where to buy this type of tree. Dwarf Cavendish banana trees like well-drained loamy soil, which is a mixture of sand, silt, and little clay. Get the latest This Old House news, trusted tips, tricks, and DIY Smarts projects from our experts–straight to your inbox. Older plants should have full strength. It tends to be hardy even in non-optimal conditions. Use a high-quality, sterile potting soil for containers, and well-amended clean soil in planters or other outdoor planting sites. When the petals at the tip of each banana fall off or dry to a crumbling state, you can remove the bag and harvest your bananas. The ideal location for a Dwarf Cavendish is a spot that will get direct sunlight, such as a room with a sunny window or in the backyard away from shade. Areas that receive frost should overwinter their banana trees indoors. Gran Nain dessert bananas were once at major risk due to the fusarium-related fungal disease called Panama Disease. Do you need two banana trees to produce fruit? To planting it in the container, use potting soil with perlite, sand, and compost. You can also produce bananas from suckers or “pups”, the offshoots of an adult plant. Using a high-phosphorous fertilizer like an 8-10-8 is ideal. Once all of the hands are revealed and are starting to grow, remove the remaining flower at the tip of the stem. When you’re at the local supermarket buying bananas, this is quite likely what you’re getting. Source: Gardening Solutions, Corky scab thrips (Chaetanaphothrips signipennis) damage to plant. About 1” per plant per week, estimated. Banana bunchy top disease is transmitted by aphids, especially the banana aphid. This disease causes upward curling or cupping of the leaves and narrowing of leaves. Amend the planting site with compost, manure or peat. The rhizome likely has a sprout growing out of the top called a sucker. As a plant, the dwarf banana tree is at risk from a number of diseases and pests. The banana that grows out of the flowers is the same size as a regular cavendish banana with … Listen to this post on the Epic Gardening Podcast, Subscribe to the Epic Gardening Podcast on iTunes. Some varieties which prefer hotter climates may never bloom in cooler ones. In an area where you don’t get frost, but you do get temperatures below 60 degrees, take chicken wire and make a tubular ring around your dwarf banana tree. Source: chrissatv, Dwarf banana tree, ‘Williams Hybrid’. You want a deep pot with a good-sized drainage hole that allows about 3″ space on all sides around the corm or base of your banana plant. You don’t want to plant them in soil which has previously shown signs of any fusarium fungal infection. We all love our tropical houseplants! While many cultivars can still grow in hostile conditions, they slow down significantly in speed. Home » Dwarf Banana Tree: Growing Banana Plants as Ornamentals. If you are growing your plant indoors, you don’t need to fertilize as heavily. Optimal temperatures are between 75-90 degrees. Apply a quality controlled release fertiliser. You can cut back on the watering, aiming to water at least once per week so the soil doesn’t dry out. Leave the blanket in place until the last frost. Keep reading to learn about what attracts these pests and find out how to get rid of drain flies. Light. If your average weather is going to be at or above 60 degrees, you don’t have to take any steps to overwinter your plants. Use a sharp-edged spade to carefully slice these away from the banana corm. These are now classified into groups where it’s detailed what the hybridization levels are, with “A” referring to acuminata, and “B” referring to balbisiana. Cutting that off will encourage fruit growth. You can coat the leaves and stalks of your banana plants with diatomaceous earth to repel them. Then, carefully remove your dwarf banana tree from its old pot. A banana tree can still survive under partial sun, but that may slow the growth of an otherwise easy-to-grow plant. If you’re trying to promote fruiting, you are going to want a high potassium fertilizer. But when the dust (and fiberglass) settles, you'll enjoy a fatter bank account and more comfortable indoor temps year-round. When all’s said and done, the dwarf banana tree can be a beautiful addition to your garden, indoors or outdoors. Destroy infected plants to prevent further spread. Dwarf Cavendish banana plants are heat-tolerant and are native to warmer parts of the world, like Southeast Asia and Central and South America. The full stem holding multiple hands is called a bunch. Gros Michel was at one point the world’s most popular banana, and has since been replaced by the Cavendish. They are very slightly resistant to older strains of Panama Disease, but can still be overwhelmed. Check the top inch of soil around your plant. Thankfully, we have dwarf cultivars which only grow to be 4′ to 12′ tall, making them viable for home gardens. Weeds compete with your dwarf banana tree for crucial soil moisture and nutrients. Hi, I'm Kevin. Keep the soil moist and stored in a location that is above 60 degrees. However, the Cavendish is at risk from a new variety of this fusarium wilt called Tropical Race 4. Wondering about those moth-like flies hanging around your drains? An indoor plant can handle 2-3 suckers, but shouldn’t have more than that. Dwarf bananas are big eaters. This pot is too crowded for normal growing conditions but is fine for bonsai. Carefully remove your plant from the ground and place into a pot that’s at least 3″ larger on all sides than the root mass and corm. Most people growing banana plants in pots pick the wrong size pot. Young leaves are purple or red in color, but they turn green as they grow and produce large flowers. Keep it in a warm, well-lit portion of your house until the weather is again consistently above 60 degrees. Sigatoka and black leaf streak are both fungal leaf spots which can be hard to treat. There are some really important environmental conditions for your dwarf banana tree to thrive. My Dwarf Banana Tree Has Brown Bumps. Unless commercial banana farming is changed to avoid fungal infections such as these, the commercial viability of bananas may be at risk. If you live in growing zones 10 or 11, your Dwarf Cavendish banana tree won’t go dormant because your area stays warm year round, so there’s no need to move or cover it. Do not allow the planting area or container to completely dry out. To make the banana tree rich in potassium, make the soil slightly acidic. If you don’t have room indoors for your dwarf banana tree to take up a lot of space during the cold months, cut it back! It’s slowly gaining popularity because of its miniature fruit. Best Products To Fix Dwarf Banana Tree Pests/Diseases: At one point, it was believed that all plantains or cooking bananas came from the species Musa paradisiaca, and all dessert bananas came from the species Musa sapientum. The warmth of freshly-composted material can retard plant growth or cause damage to the banana corm. Source: F. D. Richards, Tissue cultured Dwarf Cavendish banana plant. In this review, the This Old House Reviews team delves into the best snow blowers on Amazon to help you find one that will help you get through the winter weather. If new leaves begin to form, provide at least some light to keep it going until you can take it back out. A minimum of eight hours of sunlight is required to give them the best growth, and up to 12 hours if you’re trying to promote fruiting. Lots of access to water is necessary, but with bananas, there is a risk of too much. If you live in a colder state within zone 4, you can still pot this tree and put it on your patio or in your house. This reduces weed problems, keeps the soil cool and helps conserve moisture. They can develop root rot in overly-moist soil. To apply it in the container, use it in the potting soil with perlite, sand, and compost. Keep reading to learn how to get rid of gnats and how to prevent future infestations. I’ll also include a couple of the most popular ornamental (inedible) varieties, as they also make great show plants too! Soil. If growing in a container, it’s important to water slightly more often than if they are in the ground, as containers will dry out faster. While you're here, why not follow us on Facebook and YouTube? There is a standard dwarf Cavendish that reaches about 9′ in height, and a super-dwarf cultivar that gets to about 4′. Giant Cavendish are not a dwarf banana cultivar, but they can be trained to grow rather small if you aren’t growing them for fruiting purposes. The Dwarf Cavendish banana tree gets its name because of its short stalk of eight to 10 feet. Mulching also prevents water loss in the soil. And if you let it flower, you might even get some bananas, too! The true stem will grow out of the center of the pseudostem followed by leaves, blossoms, and bananas. Each segment of bananas is called a hand, with an individual banana called a finger. If the soil pH is 6-7, it will be better. Watering: Since there are hundreds, even thousands of cultivars of edible bananas today, it’s confusing to pick a plant. Source: MeganEHansen, Dwarf banana tree, ‘Lady Finger’. If it’s in the ground, still cut it off as mentioned above. You should leach the soil twice a … Water the dwarf banana regularly, keeping the soil moist but not flooded. Nematodes, thrips, black weevils, banana stalk borers, mealybugs, spider mites, aphids, banana fruit scarring beetle. I highly recommend purchasing and spreading beneficial nematodes in and around your banana plants. There are two main varieties of bananas grown in Australia – Cavendish and ladyfinger. Finally, place a 4″ or thicker layer of mulch on top of the soil.