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Intermediate wood fern
Intermediate wood fern
Intermediate wood fern
Intermediate wood fern
Intermediate wood fern
Intermediate wood fern
Intermediate wood fern
Dryopteris intermedia
Also known as : Fancy Fern, American Shield Fern, Evergreen wood fern
The intermediate wood fern is an evergreen fern found across North America and Europe. It's popular for woodland or shade gardens. It is easy to grow in well-drained soils and can tolerate high humidity.
Hardiness Zones
Hardiness Zones
3
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Key Facts About Intermediate wood fern

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Attributes of Intermediate wood fern

Lifespan
Perennial
Plant Type
Herb
Plant Height
46 cm to 91 cm
Spread
60 cm to 90 cm
Leaf Color
Green
Brown
Stem Color
Green
Leaf type
Evergreen
Ideal Temperature
0 - 25 ℃
Growth Rate
Moderate

Symbolism

Fascination, Sincerity, Magic

Trivia and Interesting Facts

Woodfern leaves are like the tail of a squirrel. Each leaf is arranged on the stem in an orderly manner, and gradually shortens from the bottom to the head. The orderly arranged woodfern really soothes obsessive-compulsive disorders.

Scientific Classification of Intermediate wood fern

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distribution

Distribution of Intermediate wood fern

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Habitat of Intermediate wood fern

Moist rocky woods, hemlock hardwoods, ravines, edges of swamps
Northern Hemisphere
South Hemisphere

Distribution Map of Intermediate wood fern

Intermediate wood fern is a fern species mainly native to the temperate zones of the Northern Hemisphere. It flourishes in forested regions and is adapted to cooler climates. Being a resilient plant, intermediate wood fern has naturally spread across extensive ranges. Additionally, it has been introduced to areas in Eastern Asia, where it has managed to establish itself, further expanding its presence beyond its initial native habitat.
distribution map
Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
habit
question

Questions About Intermediate wood fern

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Watering Watering Watering
Sunlight Sunlight Sunlight
Temperature Temperature Temperature
What is the best way to water my Intermediate wood fern?
When watering the Intermediate wood fern, you should aim to use filtered water that is at room temperature. Filtered water is better for this plant, as tap water can contain particles that are harmful to its health. The reason that the water should be at room temperature or slightly warmer is that the Intermediate wood fern comes from a warm environment, and cold water can be somewhat of a shock to its system. Also, you should avoid overhead watering for this plant, as it can cause foliage complications. Instead, simply apply your filtered room temperature water to the soil until the soil is entirely soaked. Soaking the soil can be very beneficial for this plant as it moistens the roots and helps them continue to spread through the soil and collect the nutrients they need.
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What should I do if I water my Intermediate wood fern too much or too little?
Both overwatering and underwatering will be detrimental to the health of your Intermediate wood fern, but overwatering is a far more common issue. When this species receives too much water, its stems and leaves may begin to wilt and turn from green to yellow. Overwatering over a prolonged period may also lead to diseases such as root rot, mold, and mildew, all of which can kill your plant. Underwatering is far less common for the Intermediate wood fern, as this plant has decent drought tolerance. However, underwatering remains a possibility, and when it occurs, you can expect to find that the leaves of your Intermediate wood fern have become brittle and brown.
It is crucial that you notice the signs of overwatering as soon as possible when caring for your Intermediate wood fern. Some of the diseases that arise from overwatering, such as root rot, may not be correctable if you wait too long. If you see early signs of overwatering, you should reduce your watering schedule immediately. You may also want to assess the quality of soil in which your Intermediate wood fern grows. If you find that the soil drains very poorly, you should replace it immediately with a loose, well-draining potting mix. On the other hand, if you find signs that your Intermediate wood fern is receiving too little water, all you need to do is water more regularly until those signs have subsided.
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How often should I water my Intermediate wood fern?
If your plant is in a pot. The most precise way to decide whether your Intermediate wood fern needs water is to plunge your finger into the soil. If you notice that the first two to three inches of soil have become dry, it is time to add some water.
If you grow your Intermediate wood fern outdoors in the ground, you can use a similar method to test the soil. Again, when you find that the first few inches of soil have dried out, it is time to add water. During the spring and early fall, this method will often lead you to water this plant about once every week. When extremely hot weather arrives, you may need to increase your watering frequency to about twice or more per week. With that said, mature, well-established the Intermediate wood fern can show an admirable ability to withstand drought.
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How much water does my Intermediate wood fern need?
When it comes time to water your Intermediate wood fern, you should not be shy about how much water you give. With the first two to three inches of soil dry, this plant will appreciate a long and thorough watering. Supply enough water to soak the soil entirely. The amount of water you add should be enough to cause excess water to flow through the drainage holes at the bottom of your pot. If you don’t see excess water draining from the pot, you have likely underwatered your plant. But do not let the water accumulate inside the soil, which will be very dangerous to the plant as well. Alternatively, a lack of water draining through the pot could indicate poorly draining soils, which is detrimental to the health of this plant and should be avoided. If the plant is outside, 1 inch of rain per week will be sufficient.
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How should I water my Intermediate wood fern at different growth stages?
The water needs of the Intermediate wood fern can change depending on growth stages as well. For example, when your Intermediate wood fern is in the first few years of its life, or if you have just transplanted it to a new growing location, you will need to give more water than usual. During both of those stages, your Intermediate wood fern will put a lot of energy towards sprouting new roots that will then support future growth. For those roots to perform their best, they need a bit more moisture than they would at a more mature phase. After a few seasons, your Intermediate wood fern will need much less water. Another growth stage in which this plant may need more water is during the bloom period. Flower development can make use of a significant amount of moisture, which is why you might need to give your Intermediate wood fern more water at this time.
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How should I water my Intermediate wood fern through the seasons?
The Intermediate wood fern will have its highest water needs during the hottest months of the year. During the height of summer, you may need to give this plant water more than once per week, depending on how fast the soil dries out. The opposite is true during the winter. In winter, your plant will enter a dormant phase, in which it will need far less water than usual. In fact, you may not need to water this plant at all during the winter months. However, if you do water during winter, you should not do so more than about once per month. Watering too much at this time will make it more likely that your Intermediate wood fern will contract a disease.
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What's the difference between watering my Intermediate wood fern indoors and outdoors?
It is most common to grow the Intermediate wood fern indoors for any gardener that does not live in temperate and tropical regions. Those gardeners should consider the fact that soil in a container can dry out a bit faster than ground soil. Also, the presence of drying elements such as air conditioning units can cause your Intermediate wood fern to need water on a more frequent basis as well. if you planted it outside. When that is the case, it’s likely you won’t need to water your Intermediate wood fern very much at all. If you receive rainfall on a regular basis, that may be enough to keep your plant alive. Alternatively, those who grow this plant inside will need to water it more often, as allowing rainwater to soak the soil will not be an option.
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More Info on Intermediate Wood Fern Growth and Care

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Basic Care Guide
Lighting
Partial sun
The intermediate wood fern shows adaptability towards light patterns. It welcomes a moderate degree of light, but can still flourish in relatively darker, obscured conditions. Lack of enough light might result in less vigorous growth. It traces its roots to habitats with filtered light through tree canopies and no excessive exposure.
Best Sunlight Practices
Temperature
-30 ℃
Intermediate wood fern thrives in its native forest undergrowth at temperatures from 32 to 77 °F (0 to 25 ℃). If cultivated, seasonal adjustments may be needed to regulate temperatures particularly during extreme weather conditions.
Temp for Healthy Growth
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Chin cactus
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Golden pothos
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Intermediate wood fern
Intermediate wood fern
Intermediate wood fern
Intermediate wood fern
Intermediate wood fern
Intermediate wood fern
Intermediate wood fern
Dryopteris intermedia
Also known as: Fancy Fern, American Shield Fern, Evergreen wood fern
The intermediate wood fern is an evergreen fern found across North America and Europe. It's popular for woodland or shade gardens. It is easy to grow in well-drained soils and can tolerate high humidity.
Hardiness Zones
Hardiness Zones
3
more
plant_info

Key Facts About Intermediate wood fern

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Feedback
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Attributes of Intermediate wood fern

Lifespan
Perennial
Plant Type
Herb
Plant Height
46 cm to 91 cm
Spread
60 cm to 90 cm
Leaf Color
Green
Brown
Stem Color
Green
Leaf type
Evergreen
Ideal Temperature
0 - 25 ℃
Growth Rate
Moderate
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Symbolism

Fascination, Sincerity, Magic

Trivia and Interesting Facts

Woodfern leaves are like the tail of a squirrel. Each leaf is arranged on the stem in an orderly manner, and gradually shortens from the bottom to the head. The orderly arranged woodfern really soothes obsessive-compulsive disorders.

Scientific Classification of Intermediate wood fern

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distribution

Distribution of Intermediate wood fern

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Habitat of Intermediate wood fern

Moist rocky woods, hemlock hardwoods, ravines, edges of swamps
Northern Hemisphere
South Hemisphere

Distribution Map of Intermediate wood fern

Intermediate wood fern is a fern species mainly native to the temperate zones of the Northern Hemisphere. It flourishes in forested regions and is adapted to cooler climates. Being a resilient plant, intermediate wood fern has naturally spread across extensive ranges. Additionally, it has been introduced to areas in Eastern Asia, where it has managed to establish itself, further expanding its presence beyond its initial native habitat.
distribution map
Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
question

Questions About Intermediate wood fern

feedback
Feedback
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Watering Watering Watering
Sunlight Sunlight Sunlight
Temperature Temperature Temperature
What is the best way to water my Intermediate wood fern?
more
What should I do if I water my Intermediate wood fern too much or too little?
more
How often should I water my Intermediate wood fern?
more
How much water does my Intermediate wood fern need?
more
How should I water my Intermediate wood fern at different growth stages?
more
How should I water my Intermediate wood fern through the seasons?
more
What's the difference between watering my Intermediate wood fern indoors and outdoors?
more
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More Info on Intermediate Wood Fern Growth and Care

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Basic Care Guide
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Plants Related to Intermediate wood fern

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Lighting
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Requirements
Partial sun
Ideal
About 3-6 hours sunlight
Full shade
Tolerance
Less than 3 hours of sunlight
Watch how sunlight gracefully moves through your garden, and choose spots that provide the perfect balance of light and shade for your plants, ensuring their happiness.
Essentials
The intermediate wood fern shows adaptability towards light patterns. It welcomes a moderate degree of light, but can still flourish in relatively darker, obscured conditions. Lack of enough light might result in less vigorous growth. It traces its roots to habitats with filtered light through tree canopies and no excessive exposure.
Preferred
Tolerable
Unsuitable
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Artificial lighting
Indoor plants require adequate lighting for optimal growth. When natural sunlight is insufficient, particularly in winter or in less sunny spaces, artificial lights offer a vital solution, promoting faster, healthier growth.
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Indoor plants require adequate lighting for optimal growth. When natural sunlight is insufficient, particularly in winter or in less sunny spaces, artificial lights offer a vital solution, promoting faster, healthier growth.
1. Choose the right type of artificial light: LED lights are a popular choice for indoor plant lighting because they can be customized to provide the specific wavelengths of light that your plants need.
Full sun plants need 30-50W/sq ft of artificial light, partial sun plants need 20-30W/sq ft, and full shade plants need 10-20W/sq ft.
2. Determine the appropriate distance: Place the light source 12-36 inches above the plant to mimic natural sunlight.
3. Determine the duration: Mimic the length of natural daylight hours for your plant species. most plants need 8-12 hours of light per day.
Important Symptoms
Symptoms of Insufficient Light in %s
Intermediate wood fern is a versatile plant that thrives in full sunlight but can tolerate partial shade. While it can adapt to different light conditions, when grown indoors with insufficient light, subtle symptoms of light deficiency may arise.
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(Symptom details and solutions)
Small leaves
New leaves may grow smaller in size compared to the previous ones once they have matured.
Leggy or sparse growth
The spaces between leaves or stems of your Intermediate wood fern may become longer, resulting in a thin and stretched-out appearance. This can make the plant look sparse and weak, and it may easily break or lean due to its own weight.
Faster leaf drop
When plants are exposed to low light conditions, they tend to shed older leaves early to conserve resources. Within a limited time, these resources can be utilized to grow new leaves until the plant's energy reserves are depleted.
Slower or no new growth
Intermediate wood fern enters a survival mode when light conditions are poor, which leads to a halt in leaf production. As a result, the plant's growth becomes delayed or stops altogether.
Lighter-colored new leaves
Insufficient sunlight can cause leaves to develop irregular color patterns or appear pale. This indicates a lack of chlorophyll and essential nutrients.
Solutions
1. To optimize plant growth, shift them to increasingly sunnier spots each week until they receive 3-6 hours of direct sunlight daily, enabling gradual adaptation to changing light conditions.2. To provide additional light for your plant, consider using artificial light if it's large or not easily movable. Keep a desk or ceiling lamp on for at least 8 hours daily, or invest in professional plant grow lights for ample light.
Symptoms of Excessive light in %s
Intermediate wood fern thrives in full sun exposure but can adapt to partial shade. Although sunburn symptoms occur occasionally, they are generally tolerant of different light conditions due to their resilience.
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(Symptom details and solutions)
Chlorosis
Chlorosis is a condition where the plant's leaves lose their green color and turn yellow. This is due to the breakdown of chlorophyll from excessive sunlight, which negatively affects the plant's ability to photosynthesize.
Sunscald
Sunscald occurs when the plant's leaves or stems are damaged by intense sunlight exposure. It appears as pale, bleached, or necrotic areas on the plant tissue and can reduce the plant's overall health.
Leaf Curling
Leaf curling is a symptom where leaves curl or twist under extreme sunlight conditions. This is a defense mechanism used by the plant to reduce its surface area exposed to sunlight, minimizing water loss and damage.
Wilting
Wilting occurs when a plant loses turgor pressure and its leaves and stems begin to droop. Overexposure to sunlight can cause wilting by increasing the plant's water loss through transpiration, making it difficult for the plant to maintain adequate hydration.
Leaf Scorching
Leaf scorching is a symptom characterized by the appearance of brown, dry, and crispy edges or patches on leaves due to excessive sunlight. This can lead to a reduction in photosynthetic capacity and overall plant health.
Solutions
1. Move your plant to the optimal position where it can receive abundant sunlight but also have some shade. An east-facing window is an ideal choice as the morning sunlight is gentler. This way, your plant can enjoy ample sunlight while reducing the risk of sunburn.2. It is recommended to trim off any completely dehydrated or withered parts of the plant.
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Temperature
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Requirements
Ideal
Tolerable
Unsuitable
Just like people, each plant has its own preferences. Learn about your plants' temperature needs and create a comforting environment for them to flourish. As you care for your plants, your bond with them will deepen. Trust your intuition as you learn about their temperature needs, celebrating the journey you share. Lovingly monitor the temperature around your plants and adjust their environment as needed. A thermometer can be your ally in this heartfelt endeavor. Be patient and gentle with yourself as you explore your plants' temperature needs. Cherish your successes, learn from challenges, and nurture your garden with love, creating a haven that reflects the warmth of your care.
Essentials
Intermediate wood fern thrives in its native forest undergrowth at temperatures from 32 to 77 °F (0 to 25 ℃). If cultivated, seasonal adjustments may be needed to regulate temperatures particularly during extreme weather conditions.
Regional wintering strategies
Intermediate wood fern is highly cold-tolerant and does not require additional frost protection measures during winter. However, before the first freeze in autumn, it is recommended to water the plant generously to ensure the soil remains moist and enters a frozen state. This helps prevent drought and water scarcity for the plant during winter and early spring.
Important Symptoms
Symptoms of Low Temperature in Intermediate wood fern
Intermediate wood fern is extremely cold-tolerant, but the winter temperature should be maintained above {Limit_growth_temperature}. If the temperature drops below this threshold, although there may not be any noticeable changes during winter, there may be a decrease in sprouting or even no sprouting during springtime.
Solutions
In spring, remove any parts that have failed to sprout.
Symptoms of High Temperature in Intermediate wood fern
Intermediate wood fern is not tolerant to high temperatures. When the temperature exceeds {Suitable_growth_temperature_max}, its growth will stop, and it becomes more susceptible to rot.
Solutions
Trim away the sunburned and dried-up parts. Move the plant to a location that provides shade from the midday and afternoon sun, or use a shade cloth to create shade. Water the plant in the morning and evening to keep the soil moist.
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