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How to Grow and Care for Elkhorn Fern: Easy Tips for Beginners

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If you’re eager to bring a touch of the exotic into your space, consider the elkhorn fern. Ideal for both hanging baskets and as a standalone epiphyte, this plant makes a stunning addition with its distinctive antler-like fronds that evoke the feel of a verdant tropical jungle.

The elkhorn fern adds warmth and a tranquil vibe, seamlessly enhancing both indoor and outdoor settings. Keen on growing your own? We’ve got a wealth of experience nurturing these ferns and are excited to share our top tips with you!

What is Elkhorn Fern?

Meet the Elkhorn Fern, or Platycerium bifurcatum, a fascinating member of the Polypodiaceae family that hails from the lush tropical rainforests of Southeast Asia and Australia.

This striking fern is often spotted nestled in the branches of towering trees, particularly in Java, New Guinea, and parts of Eastern Australia like New South Wales, Queensland, and Lord Howe Island.

Why is it called an Elkhorn Fern? Just take a look at its large, branching fronds that mimic the shape of elk horns! This plant is not only a visual treat but also an easy-to-grow option for indoor plant lovers.

With its two distinct types of leaves—broad, heart-shaped sterile fronds that help it cling to surfaces, and long, grey-green fertile fronds that elegantly drape down—it adds a dramatic flair to any space.

What is Elkhorn Fern?
Credit: Toohey Forest Environmental Education

Elkhorn Ferns are epiphytic, thriving in small groups and often seen attached to tree trunks or mounted on boards that can be hung on walls, making them incredibly easy to maintain. They prefer light, dappled shade with some sunlight and protection from frost.

When it comes to care, they aren’t demanding: ensure high humidity, avoid watering directly at the base to keep it dry, and focus moisture delivery to the center of the plant.

Embrace the beauty and ease of the Elkhorn Fern to bring a piece of the tropical rainforest into your home. It’s perfect for adding a touch of the exotic to shady spots, beside water features, or on a cool patio. With minimal care, this fern can be a lush, low-maintenance highlight in any plant enthusiast’s collection.

Staghorn vs. Elkhorn Ferns: Spot the Difference!

Got a green thumb and can’t tell your Staghorn from your Elkhorn fern? Let’s clear that up! Both these ferns love hanging out on other plants without taking their nutrients—they’re what we call epiphytic.

Staghorns, or Platycerium superbum, flaunt a big, shield-like leaf up front, catching water and bits of organic stuff that tumble down from above. As they grow, they sprout these cool, branching fronds that resemble antlers, which start from the center and drape elegantly.

On the flip side, Elkhorn ferns are more of a community plant, made up of bunches of smaller, slender fronds. While Staghorns grow solo with a single eye, Elkhorns cluster into groups, each with multiple rosettes or ‘eyes’—perfect if you’re looking to propagate and start new fern families.

Staghorn vs. Elkhorn Ferns
Credit: Tatters on flickr

Despite their differences in appearance, both types of ferns thrive under similar care conditions, soaking up moisture and nutrients from their surroundings. So, next time you spot a fern, check if it’s a lone ranger or a team player to tell these two apart!

Ideal Conditions for Healthy Elkhorn Fern Growth

Growing Elkhorn ferns is a delightful endeavor, especially if you enjoy the lush, exotic feel they bring to your home or garden. This unique fern thrives as a hanging plant due to its arching growth, making it perfect for baskets.

As an epiphyte, it lives on other plants, not deriving nutrients from them, but rather using them as a physical support to better capture light—a necessity since it does not grow well in soil.

Elkhorn ferns are quite the ornamental feature, whether indoors on a wall or nestled in the branches of a tree outdoors. They’re adaptable to both cool and mild tropical climates and can be planted at any time. To ensure they thrive, use sphagnum moss to buffer between the plant and its support, be it a backing board or tree.

These ferns require conditions that replicate their tropical origins—good air circulation, bright but indirect light, warm temperatures, and moderate to high humidity. Indoor environments, such as bathrooms, are often ideal due to the natural humidity provided by showers, but may need additional misting to maintain moisture levels.

The Elkhorn fern prefers temperatures around 60°F to 80°F and benefits from being kept out of direct sunlight and dark, drafty corners.

For indoor growth, opt for a free-draining potting mix designed for indoor plants. The leaves of the Elkhorn fern are another of its charming features, growing in a gray-green hue and reaching lengths of up to 35 inches.

Over time, these leaves develop a unique antler-like shape, and the plant uses its basal, non-flowering fronds to absorb water and nutrients, which brown and layer over time.

The ideal substrate for your Elkhorn fern is a mix of coarse leaf mold, peat, and bark, with a slightly acidic pH—similar to orchid mix, which also works well. Always choose pots with good drainage to prevent waterlogging and promote healthy root development. For an extra boost, add perlite or bark for better aeration, and organic matter to retain essential nutrients.

Choosing the right location and preparing the soil carefully lays the groundwork for a thriving Elkhorn fern, bringing a touch of the exotic to your living space.

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How to Plant an Elkhorn Fern

Planting an Elkhorn fern is a unique experience because, unlike most plants, it doesn’t require soil. Found naturally in trees as epiphytes, these ferns thrive when mounted on something sturdy like a wooden board or slab of bark, allowing them to showcase their striking appearance more effectively than if they were potted.

To get started, you’ll need a mounting surface like a board or wire basket, and some sphagnum or peat moss for the roots to delve into. Attach the fern securely with materials like fishing line or soft plastic mesh, taking care not to damage the green fronds. As the fern grows, new fronds will cover up any visible fastening, keeping the look natural and tidy.

Setting Up Your New Fern

Garden centers often sell Elkhorn ferns already attached to a backing board that you can easily hang on a wall or tree. This setup makes it super easy to integrate these eye-catching plants into your garden decor.

Setting Up Your New Fern
Credit: Garden Express

Propagating Elkhorn Ferns

Propagating these ferns is pretty straightforward:

  1. Detach a Rosette: Use a sharp knife to gently remove a rosette from the plant.
  2. Mount the Rosette: Attach the rosette to a hardwood board using flat-headed nails with washers, or secure it with plastic-coated wire or even pantyhose for a snug fit.
  3. Display Your Plant: Hang the board on a wall or attach it directly to a tree. Over time, the Elkhorn will anchor itself to the support, and you can remove the ties.

Elkhorns thrive in spots with filtered sunlight and away from the harsh afternoon sun. They need something to grow on but aren’t parasitic; they just use trees or supports as a base.

For garden planting, wrap some sphagnum moss on your chosen support, place the plant on top, and secure it with a gentle tie like garden twine or stockings, ensuring you place the tie under the fronds.

Planting Tips

  • Planting: Start by selecting a location or pot that meets the light and humidity needs of the Elkhorn fern. Use a well-draining mix, position the fern so its roots are spread out, and leave the crown exposed. Water well initially to settle the roots.
  • Container vs. Ground Planting: Containers offer the flexibility to manage humidity easily and move the plant around, whereas ground planting needs stable conditions.
  • Spacing: If you’re planting multiple ferns, keep them about 12-18 inches apart to ensure good air circulation and growth.

Elkhorn Fern Plant Care

Watering

Caring for an Elkhorn fern isn’t too tricky. This plant is happy with a sip of water—about 0.8 cups—every nine days if it’s out of direct sunlight and living in a 5-inch pot. Don’t let the fern’s root ball go dry, especially in larger plants where reaching between dense basal fronds to water can be a bit of a challenge.

An alternative to regular watering is submerging the plant in soft, lukewarm water weekly to thoroughly moisten the root ball. You can tell if the fern has enough water by feeling its weight—this is a great way to gauge moisture levels. It’s also vital to maintain indoor humidity around 50 to 60%, but avoid misting the fern directly.

Keep an eye out for overwatering, which can cause the leaves to turn yellow and the roots to get mushy. Conversely, underwatering will make the leaves’ edges crispy and cause wilting. Check your fern regularly to catch any issues early on.

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The Elkhorn fern sports distinctive, antler-like fronds that come in two types: basal fronds that anchor it to its growing medium, and upright fronds that showcase its striking look. This unique structure helps the fern pull moisture from the air, lessening its need for soil water.

Given its origins in the humid, rain-rich regions of Asia and Australia, the Elkhorn fern flourishes under similar conditions indoors. Creating an environment that mimics its natural habitat can boost your fern’s health and growth.

When watering, the trick is to achieve balance. Overwatering can lead to serious issues like root rot and fungal infections, so let the soil dry a bit between waterings. For those times when you’re not sure if it’s time to water, the pot’s weight can be a handy clue.

If your fern’s fronds start looking dry and brittle, it might need more water and misting. Consider watering twice a week to keep it lush and healthy, making sure the moisture level is consistent without letting the plant completely dry out.

Have questions about watering your Elkhorn fern? Here are a couple of quick tips:

  1. Seasonal Changes: Water more frequently during warm months to counteract increased evaporation, and less during the cold season, making sure to keep the humidity consistent.
  2. Type of Water: Rainwater or distilled water is best for your Elkhorn fern. If you’re using tap water, let it sit overnight to evaporate any chlorine, reducing the risk of soil contamination.

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Light conditions 

The Elkhorn fern is happiest in partial sunlight, needing about 3-6 hours each day of gentle, indirect light. Steer clear of placing it under harsh, direct sunlight as this could lead to sunburned fronds. Although it can survive in full shade, its growth might be stunted and the lushness of its leaves reduced.

To ensure your Elkhorn fern flourishes, position it no more than 3 feet from a window facing north or east. These spots usually offer the ideal light intensity without the risk of damage from the stronger sun that south-facing windows can bring. If your home doesn’t get enough natural light, consider a grow light to fill in the gaps.

Outdoors, your fern will do well in shaded areas such as under large trees or on a covered patio, where it can avoid the intense midday sun. Remember, the Elkhorn fern naturally grows on tree trunks in its tropical and subtropical habitats, benefiting from dappled light. Try to mimic this setting to keep your fern healthy and vibrant.

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The Elkhorn fern is happiest in partial sunlight
Credit: myGarden

Watch for signs of too much or too little sunlight: sunburn appears as crispy, brown edges on the leaves, while insufficient light will show as slower growth and paler green leaves.

Adjusting the plant’s position or using shade cloths and artificial lights can help manage these issues, maintaining the right balance of light that mimics the natural conditions the fern thrives in.

Seasonally, you’ll need to adapt to changes in natural light availability—more artificial light in the winter and protective measures from intense sun in the summer. For even growth, rotate your fern occasionally to expose all sides to light, preventing uneven development.

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Fertilization Tips

When first potting your Elkhorn Fern, the potting soil typically contains enough nutrients to support its initial growth. However, as these nutrients become depleted, the fern will need repotting.

Watch for signs such as the plant doubling in size or reaching the one-year mark—whichever comes first. These indicators suggest it’s time to refresh the soil and provide your fern with a larger pot.

From spring through late summer, typically between April and August, Elkhorn Ferns benefit from regular feeding. Add a small amount of green plant fertilizer to the water every three to four weeks when watering. Younger ferns may require slightly more frequent feeding than mature plants.

For a natural feeding approach, organic materials like leaf litter, tea leaves, or banana peels can enrich the soil until the fern’s root system is fully established. Once the roots have wrapped around their support structure, the plant becomes more self-sufficient.

If you prefer commercial fertilizers, opt for a seaweed-based formula. Be sure to dilute it to half the recommended strength, as Elkhorn Ferns are sensitive to overfeeding, which can damage their delicate fronds.

During the growing season, apply a diluted liquid fertilizer every four to six weeks to maintain a healthy fern. Organic options, such as fish emulsion or seaweed extract, are ideal because they supply essential nutrients without overwhelming the plant.

Timing is critical when feeding your fern. Avoid fertilizing in early autumn to prevent new growth that may struggle to thrive as temperatures drop. Similarly, skip feeding during hot, dry spells, as dry soil absorbs nutrients poorly and forces the plant to use more water, causing unnecessary stress.

Choosing the right fertilizer depends on your fern’s environment. For outdoor ferns, applying mulch or compost in the spring provides excellent nourishment. Indoor ferns benefit from a balanced, general-purpose fertilizer with an N-P-K ratio of 3-1-2, applied monthly from spring through summer.

Moderation is essential, as over-fertilizing is a common mistake. Elkhorn Ferns are slow feeders, and excessive nitrogen can burn their roots. By understanding your fern’s needs and feeding it appropriately, you can encourage lush, vibrant growth while minimizing stress on the plant.

Pruning

Pruning your Elkhorn Fern is an essential yearly task or should be done whenever you notice dead or damaged fronds. Removing these fronds at the base helps your plant stay healthy and maintain its attractive appearance. However, avoid cutting off dead basal fronds, as they naturally provide humus that nourishes the fern.

  • Regular Maintenance Matters

Ongoing care is vital for a thriving Elkhorn Fern. Inspect your plant regularly for pests such as scale insects and mealybugs, and monitor for signs of disease. Additionally, dust accumulation on the leaves can hinder photosynthesis. To prevent this, gently wipe the leaves with a damp cloth as part of your routine care.

  • Why Prune?

Pruning not only keeps your Elkhorn Fern looking its best but also promotes vigor and stimulates new growth. By maintaining its unique shape and encouraging fresh fronds, you enhance the fern’s decorative appeal.

  • Best Time to Prune

The ideal times for pruning are late winter and early spring, aligning with the fern’s natural growth cycle. Pruning during this period allows the plant to heal quickly and prepares it for a robust spring growth spurt.

Elkhorn Fern Prunning
Credit: Native Plant Project

Tools and Preparation

To prune effectively, gather the following tools:

  • Sharp scissors or snips
  • Hand pruners
  • Gloves

Before starting, assess your plant’s health and structure. Clean and disinfect your tools to prevent the spread of diseases. Clear any loose debris around the plant, ensuring a clean workspace.

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Pruning Step-by-Step

  1. Remove Dead Fronds: Make clean cuts at the base to eliminate dead or damaged fronds.
  2. Tidy Up: If needed, trim old, unsightly spore patches to enhance the fern’s appearance.
  3. Shape Conservatively: Maintain the fern’s natural look by shaping it lightly.

After pruning, properly dispose of the debris to avoid attracting pests or spreading disease.

  • Post-Pruning Care

Once you’ve finished pruning, water the fern as usual and place it in a location with bright, indirect light and moderate humidity. Allow the cut areas to heal by watering sparingly during this period.

After four weeks, resume regular feeding using a balanced fertilizer to encourage new growth. Monitor the plant closely for healthy fronds, as this is a sign of successful pruning.

Important Tips

  • Avoid over-pruning, as this can stress the plant.
  • Always use clean, sharp tools to make precise cuts.
  • Remove only dead or fully browned fronds to minimize damage.
  • Sterilize your tools before and after use to maintain the fern’s health.

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Propagating

Propagating an Elkhorn fern can be done in two primary ways: by removing side shoots from the base of the mother plant or by sowing spores. While propagation through division is quicker and easier, cultivating ferns from spores involves a more extended, detailed process.

When to Propagate

Spring is the best time to propagate Elkhorn ferns using the division method. This season provides the ideal conditions—warmer temperatures, longer days, and active plant growth—helping new plants establish themselves effectively. The mild weather also supports quick recovery and strong root development.

Essential Tools for Propagation

To successfully propagate your Elkhorn fern, you will need the following tools and materials:

  • Sharp, sterile scissors or pruning shears: These ensure precise cuts and reduce damage, aiding the plant’s recovery.
  • Gloves: Protect your hands from the fern’s rough texture and keep clean to lower disease risk.
  • Antifungal powder: Apply this to cut areas to prevent fungal infections and promote healthy growth.
  • Suitable planting medium: Opt for sphagnum moss or a peat-perlite mix to strike the right moisture and aeration balance for root development.
  • Potting containers: Choose pots with sufficient drainage to prevent waterlogging and match the size of your fern divisions.
  • Watering can with a gentle nozzle: This helps evenly hydrate the medium without disturbing it.
  • Humidity tray or misting bottle: Elkhorn ferns flourish in high humidity, so these tools are crucial for maintaining the proper environment.

Caring for Your Newly Propagated Fern

Once propagated, place your fern in an area with bright, indirect sunlight and keep the humidity high. Water the medium only when it feels dry to the touch to avoid root rot.

During growth phases, fertilize with a diluted, balanced fertilizer to support robust development. Ensure there is good air circulation but avoid strong drafts, which can dehydrate the plant.

Common Mistakes to Avoid

  1. Overwatering: As epiphytes, Elkhorn ferns need less water than terrestrial plants. Excessive moisture can cause root rot.
  2. Using the wrong planting medium: Avoid regular potting soil as it retains too much moisture. Instead, use a well-draining mix like sphagnum moss.
  3. Inadequate lighting: These ferns require bright, indirect light. Insufficient light can stunt growth, whereas direct sunlight may burn the fronds.
  4. Improper cutting techniques: Propagate using side shoots or spores. Cutting from the fronds will not produce new plants.

Additional Tips for Successful Propagation

  • Spore Collection: Gently collect spores from the undersides of mature fronds and sow them in a moist, sterile medium.
  • Proper Mounting: To mimic their natural habitat, mount new plants on wooden boards or wire frames, ensuring good support and airflow.
  • Humidity Management: Keep the environment consistently moist but not waterlogged to help young plants establish.
  • Pest Monitoring: Regularly inspect for pests like scale insects that can harm tender, developing ferns.

Transplanting and Repotting 

If you’re planning to give your elkhorn fern a new home, the ideal time to do so is during the warmer months, from early summer to late fall.

This period is essential as it allows the fern to establish strong roots before facing extreme temperatures. For best results, choose a location that mimics its natural habitat: warm, bright (but not in direct sunlight), and with high humidity.

Gather Your Tools

Before you start, ensure you have the necessary tools:

  • Trowel: For digging small holes.
  • Shovel: To lift the plant with care.
  • Pruning Shears: For trimming unhealthy or dead parts.
  • Garden Fork: To loosen the soil at the new planting site.
  • Watering Can and Mulch: To keep the soil moist and regulate its temperature after planting.

Preparing the Fern for Transplanting

When removing your elkhorn fern, aim to keep its root ball intact to minimize stress on the plant. Start by watering the fern at its current location to soften the soil. If the fern is in a pot, gently tap and tilt it to ease the plant out without damaging the roots.

Transplanting the Fern

Follow these steps for a smooth transplant:

  1. Prepare the New Site: Choose a spot with well-aerated, well-draining soil. Dig a hole large enough to comfortably accommodate the root ball.
  2. Trim and Water: A few hours before transplanting, water the fern at its original site and trim away any dead or damaged fronds.
  3. Position the Fern: Place the fern in the hole, fill it with soil, and lightly pat it down without compacting it too tightly.
  4. Water and Mulch: Give the fern a thorough watering and apply a layer of mulch around the base. Leave some space around the crown to prevent rot.
Preparing the Fern for Transplanting
Credit: One Garden

Post-Transplant Care

After moving your fern, monitor it for signs of stress such as wilting or discoloration. Adjust watering or placement as needed to help it recover. Avoid fertilizing for at least one month to give the fern time to settle in.

Regularly prune dead or damaged fronds to maintain its health and appearance. If pests appear, address them promptly to ensure your fern continues to thrive.

Further care

  • Getting the Environment Just Right

Elkhorn ferns are known for their unique growth habit, often spilling gracefully over the edges of their pots. This makes them ideal candidates for mounting on epiphyte tree trunks, which better mimic their natural environment than traditional pots.

As seasons change, your care routine should adapt accordingly. During winter, when the fern’s growth slows, reduce watering to match its lower water requirements.

  • Combating Environmental Stress

Elkhorn ferns thrive in environments with high humidity, and low humidity levels can stunt their growth. To maintain a suitable environment, consider increasing humidity using a humidifier or a pebble tray filled with water placed beneath the plant.

Protect the fern from sudden temperature changes by keeping it away from drafty windows, heating vents, and air conditioners. A stable environment helps the plant flourish.

  • Troubleshooting Common Issues

Yellowing leaves often signal overwatering or nutrient deficiencies. Adjust your watering schedule and consider feeding the plant with a balanced fertilizer. If growth is stunted, ensure the fern is receiving adequate light and humidity, as both are essential for its overall health. Regularly monitor the plant’s conditions to address issues promptly.

  • Maintaining Humidity

During dry seasons, your fern will benefit from additional moisture in the air. Simple solutions like a pebble tray or a humidifier can help maintain optimal humidity levels, ensuring the plant stays healthy and vibrant.

  • Why Overwintering Matters

Elkhorn ferns, native to tropical and subtropical regions, are highly sensitive to cold temperatures. Overwintering is essential to shield them from harsh winter conditions, which can damage or even kill the plant. Implementing proper overwintering techniques ensures your fern remains healthy and resilient through colder months.

  • Pre-Winter Preparation

Before bringing your fern indoors for winter, inspect it for pests such as scale or mealybugs, which can thrive indoors. Use a magnifying glass to detect these pests, and treat infestations early with insecticidal soap or neem oil. Prune dead fronds and clean healthy ones to prevent disease and maintain a tidy appearance.

  • Adjusting for Winter Conditions

In winter, water the fern less frequently, allowing the topsoil to dry slightly between waterings to avoid root rot. Reduce fertilization to once every two months, using a diluted, balanced fertilizer to match the plant’s decreased nutrient requirements during its dormant phase.

  • Setting Up Indoors

Choose a bright spot indoors with indirect sunlight, such as near an east-facing window, to place your fern. High-humidity areas like bathrooms or kitchens are ideal. Maintain a stable indoor temperature between 16–24°C (60–75°F) and keep humidity levels above 50%. Consistency in temperature and moisture is crucial for the plant’s health.

  • Ensuring Proper Light and Handling Issues

Provide ample indirect light for your fern, supplementing with grow lights if natural light is insufficient. Monitor the plant for signs of stress, such as leaf drop, and adjust care as needed. For root rot, reduce watering and ensure proper drainage. Regular pest inspections and treatments help keep your fern pest-free and thriving indoors.

Managing Pests and Diseases

Elkhorn ferns, while stunning, are not immune to the trials of pests like scale insects and mealybugs, which drain the plant’s energy. It’s crucial to check your ferns regularly to catch these critters early.

Root rot is another headache for these ferns, mostly due to overwatering. To avoid this, make sure your ferns have excellent drainage and keep an eye on the soil’s moisture levels.

Sometimes, you might notice the tips of your fern’s fronds turning brown, a sign of either dryness or exposure to drafts. Scale insects can also contribute to this problem, proving stubborn as they resist many common insecticides.

If you’re trying to treat these pests, test any product on a single frond first to see how it reacts. You can also manually remove scales with a knife if you’re cautious.

Wilting in Elkhorn ferns can be dramatic, with the plant losing its stiffness, curling up, and even changing color. This can stem from either pathogens or environmental stress, and if not managed well, it could be fatal for your plant.

As for the natural aging process, it’s normal for an Elkhorn fern’s leaves to yellow and dry out. This is part of the plant’s life cycle and is generally irreversible.

Brown spot disease can mar your fern with unsightly brown patches. For minor cases, you might not need to do anything. But if the problem escalates, removing the affected foliage and applying a treatment might be necessary.

Start with gentler organic remedies, such as a mix of baking soda, liquid soap, and water. For tougher cases, copper-based fungicides are effective in preventing spore germination, which stops the spread of the disease.

Powdery mildew, appearing as a white mold on the leaves, can often be managed with simple measures. Remove affected parts of the plant and clean up any fallen debris. Applying a milk spray (60% water, 40% milk) can control and even prevent this mildew.

For more severe cases, consider a mild sulfur- or copper-based fungicide. Improving conditions by increasing sunlight and airflow around your plants also helps.

Leaf scorch, where leaves dry and brown at the tips, can often be mitigated by improving overall plant care and ensuring the roots are well mulched.

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