Salix myrsinifolia
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Salix myrsinifolia

Dark-leaf willow · Whortle willow · Myrsine-leaved willow · Dark-leaved willow · Blueberry Willow

Tier 1 Difficulty: easy Water: low Light: full_sun
Water every
7 days
0
Soil pH
5–6
Hardiness
Zone 3–3
Click count
696
Observations
616

Description

Source: leafsnap

Salix myrsinifolia, commonly known as the dark-leaved willow or myrtle-leaved willow, is a deciduous shrub or small tree belonging to the Salicaceae family. Native to Europe and western Asia, it thrives in damp environments such as riverbanks, wetlands, and marshes. This plant can reach up to 6 meters in height and spread approximately 4 meters wide. Its leaves are dark green, narrow, and lance-shaped with serrated edges. The top surfaces of the leaves are glossy, while the undersides are paler. Salix myrsinifolia produces catkins that appear in early spring before the leaves emerge. Male catkins are yellowish-green, while female catkins are greenish-yellow. The plant is highly valued for its many uses. It is effective for erosion control due to its rapid growth and ability to stabilize soil along riverbanks. Additionally, it provides vital habitat for wildlife, such as birds that nest in its branches. In traditional medicine, Salix myrsinifolia has been utilized for its anti-inflammatory properties, thanks to the presence of salicin, which has a structure similar to aspirin. Overall, Salix myrsinifolia is an attractive shrub or tree that offers ecological benefits and medicinal properties, making it a valuable addition to any landscape or garden.

Care Guide

💧 Water Every 7 days

The dark-leaved willow thrives in environments with moderate moisture, preferring the consistent wetness found in its temperate habitat. Although it can withstand drought conditions, it benefits from watering every three weeks. Adapted to variable rainfall, the dark-leaved willow strengthens its resilience during the growing season and absorbs water efficiently.

Suggested frequency: Every 7 days
FAQ
How should I water my Dark-leaved willow plant in the best way?

To ensure excellent root development, consider using a garden hose near the base of the plant. It's important to avoid directly spraying the leaves. If the plant is outdoors and exposed to direct sunlight, the leaves will need more water. Bubblers can be used to moisturize the roots of each plant. Soaker hoses are also useful for covering the entire garden or bed when adding or removing plants in order to encourage deep root growth. After watering, make sure to drain any excess water and allow the soil to dry before watering again. Watering at ground level helps prevent diseases. On sunny days, it may be beneficial to spray the entire bush with water. Whether the plant is potted or in-ground, remember that Dark-leaved willow prefers deep watering rather than light sprinkling.

What should I do if I give the Dark-leaved willow too much or too little water?

An overwatered Dark-leaved willow can show signs of yellowing, wilting, and leaf drop. The plant may also appear dull and unhealthy, with mushy stems. If you notice these signs, try adjusting your watering schedule. Conversely, wilting can also be a sign of under watering, characterized by crispy, dry leaves. In such cases, check the soil moisture and provide a thorough watering if needed. However, keep in mind that even with sufficient water, the Dark-leaved willow may still exhibit dryness and yellowing due to root damage. Once it returns to normal, the yellowing will cease. When growing the Dark-leaved willow indoors, regularly assess moisture levels, avoiding overwatering and watching for black spots. If present, allow the soil to dry out by ceasing watering for a few days. Overwatering can lead to root rot, so consider transferring the plant to a new pot if you observe discolored and slimy roots. Remember to prevent root rot by avoiding overly soggy soil. When planting the Dark-leaved willow outdoors, be sure to dig deeper and check for dry soil. If necessary, provide adequate watering to aid in plant recovery.

How often do I need to water my Dark-leaved willow?

The Dark-leaved willow prefers deep and infrequent watering, especially when planted in pots. Since the water storage in flower pots is limited, the soil tends to dry out quickly. In cold regions, watering is needed every 3 to 5 days. It is best to water the plant early in the morning when the soil is dry, both indoors and outdoors. You can determine if watering is required by checking the soil. When the top 2-3 inches of soil is dry, it is time to give the plant a thorough watering. During hot days, it is necessary to check the soil moisture daily as the heat can rapidly dry out the pot soil. Irrigating the soil is also essential for garden plants. In hot climates, watering once a week is sufficient. Only water when you notice that about 2 to 3 inches of soil has become too dry, whether indoors or outdoors. Be mindful of the amount of rainfall and avoid overwatering to prevent root rot. Dark-leaved willows typically grow during spring and fall. Add a 3 to 4-inch layer of mulch outdoors to conserve water. Sandy soil drains faster and requires more frequent watering, whereas clay soil requires less frequent watering to prevent root rot. You can mark the date on the calendar every time you water the plants and watch for drooping leaves, which may indicate that you need to water a day earlier.

How much water does my Dark-leaved willow tree need?

The Dark-leaved willow usually needs one gallon of water per schedule. For potted plants, water them deeply until water drips from the bottom of the pot, then wait for the soil to dry before watering again. Use a water calculator or moisture meter to track the amount of water given to your plant per week. During the flowering period, provide plenty of water but allow the moisture to evaporate to avoid root rot. If the Dark-leaved willow is planted outdoors and receives sufficient rainfall, additional watering may not be necessary. However, when the Dark-leaved willow is young or newly planted, ensure it receives 1-2 inches of rain per week. As the Dark-leaved willow grows, it can solely rely on rainfall. Only consider watering it during very hot weather or when there has been no rainfall for 2-3 weeks to prevent damage from high heat. Additional watering will be needed during extended dry periods.

Should I change how often I water my Dark-leaved willow based on the time of year or the weather?

The Dark-leaved willow is an outdoor plant that thrives in rainy conditions, although it may need watering during persistent dry weather. It needs moist but not soggy soil during the spring and fall, and alternating dry and moist soil conditions promote its growth. In the summer, hot weather can cause rapid water evaporation, so additional watering may be necessary if there is a lack of rainfall. However, during winter, the Dark-leaved willow requires less water because it goes dormant and drops its leaves. To help water evaporate more quickly, it is beneficial to use a well-draining but moisture-retentive soil mixture like terracotta. Once the Dark-leaved willow starts leafing out and going dormant, watering can be skipped, as it can rely on fall and winter rains to survive. After the spring, cultivation and encouraging growth and blooming are ideal when the temperature becomes warmer. Good drainage is crucial at all times, especially during winter, to avoid ponding or drought. When the plant is in a pot, with limited root growth, regular watering is necessary, especially in the summer. Adequate drainage should be provided to prevent cold and wet roots, and the plant should be watered deeply at least once or twice a week, avoiding shallow sprinkles that reach only the leaves. Even during dormancy in the fall or winter, the Dark-leaved willow should not be allowed to dry out completely. Avoid overwatering and ensure proper soil drainage to prevent the plant from sitting in water for too long, as this can cause it to die during winter. Additionally, applying mulch can help reduce stress, conserve water, and promote healthy blooms.

☀️ Light Full sun

The dark-leaved willow performs best in areas that receive ample sunlight but can withstand locations with moderately lower light. Plenty of sun plays a key role in its healthy development. Note that either too much or too little light can hinder its growth, as occurs in its native habitat.

Ideal: Full sun
FAQ
What are the sunlight requirements for Dark-leaved Willow?

Dark-leaved Willow requires full sun or partial sun to thrive. Full sun means the plant should receive above 6 hours of sunlight daily, while partial sun refers to about 3-6 hours of sunlight. It's important to observe how sunlight moves through your garden, selecting spots that ensure a balance of light and shade to keep your plants healthy. This plant does well in abundant sunlight but also tolerates moderately lower light levels, essential for its growth and health.

How does artificial lighting benefit indoor plants like Dark-leaved Willow?

Indoor plants, including Dark-leaved Willow, require adequate lighting for optimal growth, especially when natural sunlight is insufficient. This is common in winter or less sunny spaces. Artificial lighting, such as LED lights, can be tailored to provide specific wavelengths needed by plants, promoting faster, healthier growth. For full sun plants, 30-50W per square foot is recommended; partial sun plants need 20-30W, and full shade plants require 10-20W. The light source should be placed 12-36 inches above the plant for 8-12 hours per day to mimic natural light conditions.

What are some symptoms of insufficient sunlight in Dark-leaved Willow?

When Dark-leaved Willow doesn't receive enough sunlight, it may exhibit symptoms like small leaves, leggy or sparse growth, faster leaf drop, slower or no new growth, and lighter-colored or chlorotic new leaves. Excessive sunlight can also cause issues like sunscald, leaf curling, wilting, and leaf scorching. These symptoms indicate either a deficiency or excess in light exposure, affecting the plant's health and its ability to photosynthesize properly.

What solutions can help Dark-leaved Willow with insufficient sunlight?

For Dark-leaved Willow struggling with insufficient sunlight, gradual relocation to sunnier spots is recommended, ensuring at least 6 hours of direct sunlight daily. For indoor plants, using a south-facing window or artificial light like desk lamps or plant grow lights for at least 8 hours a day can improve light exposure. Outdoors, moving plants to sunnier locations gradually helps prevent sunburn. Also, reducing obstructions by pruning trees or transplanting to sunnier areas with good drainage can benefit the plant's health. Note, parts of the plant damaged by low light may not recover but enhancing light exposure will encourage healthy new growth.

🌡️ Temperature 0–25°C

Dark-leaved willow occurs naturally in areas where temperatures range from 32 to 77 °F (0 to 25 °C). Its hardiness lets it survive in these cooler climates. Although it can tolerate colder temperatures at times during the year, for best growth the temperature should be kept within its preferred range whenever possible.

Ideal temperature: 0–25°C
FAQ
What is the native climate for Dark-leaved Willow (Salix myrsinifolia)?

The Dark-leaved Willow is native to environments that experience temperatures ranging from 32 to 77 °F (0 to 25 °C). It thrives in cooler climates, showing a robust nature that allows it to survive without requiring additional frost protection during winter. For optimal growth, it is essential to maintain the temperature within this preferred range as much as possible. Additionally, ensuring the soil is moist before the first freeze in autumn can help the plant endure the cold season.

How does the Dark-leaved Willow handle low temperatures?

The Dark-leaved Willow is extremely cold-tolerant, capable of handling winter temperatures well above the extreme lows of -35°C. However, if temperatures do drop below this threshold, there might not be noticeable changes during winter itself, but come springtime, the plant can exhibit brittleness and dryness in its branches, with no new shoots emerging. To combat this, it is advised to prune away any dead branches that failed to produce new leaves in spring.

What should I do if the Dark-leaved Willow experiences high temperatures?

Dark-leaved Willow struggles with high temperatures, notably when they exceed 25°C, leading to significant leaf drop or, in severe cases, the death of the plant. To mitigate damage, it’s recommended to trim away sunburned and dried-up parts of the plant. Relocating the plant to a shadier spot or using a shade cloth can provide relief from intense midday and afternoon sun. Ensuring the plant is watered in the morning and evening will help keep the soil sufficiently moist and support its well-being in higher temperatures.

💨 Humidity
Humidity:
🪴 Soil 5-6
Soil pH: 5-6
🌱 Fertilizer

Fertilize your Dark-leaved willow in early spring to encourage healthy growth. Regular feeding improves overall health, leading to vigorous growth, greater resilience in harsh conditions, and enhanced resistance to pests and diseases. Keep a consistent fertilization schedule for your Dark-leaved willow to maintain vivid, deeply colored foliage and a lush appearance.

FAQ
Why should I add fertilizer to my Dark-leaved willow plant?

No matter which type of Dark-leaved willow you have, regular fertilization is important for its overall health. Providing the right nutrients will promote stronger growth, enhance resilience to challenging conditions, and improve its ability to combat diseases and pests. The foliage of the Dark-leaved willow is a key feature, so it's crucial to maintain its beauty. This involves sticking to a fertilizer schedule tailored to your specific Dark-leaved willow, which will result in vibrant and lush leaves.

When should I fertilize my Dark-leaved willow for the best results?

To keep your Dark-leaved willow healthy and promote growth, it's best to fertilize it for the first time in late winter or early spring. This provides the necessary nutrients for the upcoming warmer weather. Additionally, in warm climate regions, it's beneficial to fertilize again in early fall. This supports the tree's growth in the next season and helps it be more resilient during the winter. By fertilizing earlier, the new branches have enough time to develop and withstand the cold temperatures.

When should I not put fertilizer on my Dark-leaved willow?

There are specific times throughout the year when it's best to avoid fertilizing your Dark-leaved willow. One instance is during the early and mid-winter months when the plant is dormant and doesn't require nutrients. Another period to avoid fertilization is in the late spring and throughout the summer when the weather is hotter and drier, which can have a negative impact on the plant if it's fed during this time. To prevent any issues, it's recommended to stick to a fertilization schedule that focuses on early spring and early fall for feeding.

What kind of plant food does my Dark-leaved willow need?

Dark-leaved willows primarily require nitrogen as their most important nutrient, but phosphorus and potassium are also necessary for their growth. Thus, a balanced fertilizer like 10-10-10 can be beneficial for Dark-leaved willows as it provides all three main nutrients in decent amounts. However, achieving optimal growth often requires a more nuanced ratio of nutrients, with a slightly higher nitrogen content being more effective. For instance, a ratio of 10-6-4 can work well. When applying fertilizer, you can choose between granular or liquid-based options.

How can I add nutrients to my Dark-leaved willow plant?

To fertilize your Dark-leaved willow, you have two options: using granular fertilizer or liquid fertilizer. If you choose granular fertilizer, simply sprinkle it on the soil at the right time. The slow-release nature of the granules will gradually release nutrients into the soil. Before applying the granular fertilizer, it's generally a good idea to lightly water your Dark-leaved willow. Alternatively, you can use liquid fertilizer. Although less common, this method involves mixing the fertilizer with water and pouring the mixture onto the soil around the base of your Dark-leaved willow. In some cases, it may be helpful to perform a soil test before fertilizing to determine if any adjustments to the pH are necessary.

🪴 Pot & Repot
✂️ Pruning

The dark-leaved willow is known for its glossy, dark leaves and adaptable growth pattern. To maintain its health and appearance, it is important to prune dead or overcrowded branches in early spring. This not only encourages growth but also helps preserve the plant's shape. Regular maintenance is crucial for preventing diseases and extending the willow's lifespan.

🌿 Propagating
🐛 Diseases & pets
☠️ Toxicity

Characteristics

Plant Type
Shrub
Life Cycle
Perennial
Genus
Salix
Family
Salicaceae
Hardiness Zone
3
Mature Height
2.13 m to 7.92 m
Mature Spread
2.13 m to 3.96 m
Leaf Color
Dark Green, Olive Drab
Leaf Type
Deciduous
Flower Color
Yellow, Green
Flower Size
1.78 cm to 3.56 cm
Bloom Time
Early spring, Mid spring
Planting Time
Spring, Summer
Harvest Time
Late spring, Early summer

Tags (6)

Common Names (6)

en Dark-leaf willow
en Whortle willow
en Myrsine-leaved willow
en Dark-leaved willow
en Blueberry Willow
en Willow