Black hawthorn (Crataegus douglasii)
Also known as: Douglas' hawthorn
Certainly! Here's a revised answer:
Black hawthorn (Crataegus douglasii) is a versatile shrub with several key applications in agriculture and wildlife management:
**Agriculture:**
1. **Soil Stabilization:** Its robust root system effectively prevents soil erosion.
2. **Natural Barriers:** Frequently used in hedgerows and windbreaks to shield crops from wind, while providing habitat for beneficial insects.
3. **Pollination:** The flowers attract bees and other pollinators, enhancing the productivity of nearby crops.
**Wildlife Management:**
1. **Nutritional Source:** The berries serve as a nutritious food source for a variety of bird species and small mammals.
2. **Shelter:** Dense growth forms provide excellent cover and nesting sites for wildlife.
3. **Ecological Support:** Supports a diverse range of insects and birds, contributing to ecosystem health.
These functions make black hawthorn valuable for both agricultural and ecological purposes.
In This Article
Attributes of Black hawthorn
Lifespan
Perennial
Plant Type
Shrub
Plant Height
1.8 m to 5 m
Spread
8 m
Leaf Color
Green
Flower Size
1 cm to 1.5 cm
Flower Color
White
Images of Black hawthorn
Quickly Identify Black hawthorn
1
Thorny stems up to 1 inch long, distinctive against smooth bark.
2
White flowers in clustered corymbs, attracting midges and butterflies.
3
Edible, globular fruit ripening from red to almost black, containing five seeds.
4
Oval leaves with serrated margins, pinnate veins, dark green upper surface.
5
Relatively thin bark scaling into narrow, shaggy patterns, dark grey to brown.
Scientific Classification of Black hawthorn
Phylum
Vascular plants
Class
Dicotyledons
Order
Rosales
Family
Rose
Genus
Hawthorns
Species
Black hawthorn
Planting and Growing of Black hawthorn
Care Difficulty
Easy
Watering Schedule
Every 2 days
Sunlight Requirements
Partial sun
Sunshine Duration
4-8 hours
Ideal Temperature
50-75℉
Soil Type
Potting Mix, Peat Mix
Soil pH
6.5-7.5
Fertilizer Type
Balanced
Pruning Season
Spring, Summer
Pruning Area
Branches, Leaves
Pruning Frequency
2 times a year
Repotting Season
Spring
Pot Type
Plastic, Terracotta
How to Water Black hawthorn?
Crataegus douglasii requires moderate watering. When watering, aim to use about 500ml of water at a time. The goal is to moisten the soil thoroughly without leaving it soggy. Ensure that the top inch of soil is dry before you water again, as this plant prefers slightly moist but well-drained soil.
What are the symptoms of an underwatered Black hawthorn?
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What should I do if my Black hawthorn is not getting enough water?
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What are the symptoms of an overwatered Black hawthorn?
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How to save an overwatered Black hawthorn?
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What Are the Sunlight Requirements for Black hawthorn?
Crataegus douglasii thrives in environments providing partial to full sun exposure. Optimal light promotes healthy leaf growth and abundant flowering, ensuring the plant's full ornamental benefits are realized.
More About Sunlight Requirements Techniques→
What are the best lighting conditions for Crataegus douglasii?
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How can I ensure my Crataegus douglasii gets optimal light?
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What are the benefits of providing ideal light conditions to Crataegus douglasii?
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What Is the Ideal Temperature Range for Black hawthorn?
The ideal temperature range for growing Crataegus douglasii is between 50°F and 75°F. This provides the optimal conditions for growth and proliferation. At these temperatures, the plant is more likely to experience healthy foliage and strong root development, which are critical to its overall well-being. Consistently maintaining this temperature range helps in reducing the likelihood of stress-induced diseases.
What Soil is Best for Black hawthorn?
Crataegus douglasii thrives in well-drained soils which prevent waterlogging. This allows the roots to breathe and absorb nutrients effectively, supporting vigorous growth. A soil with moderate fertility is ideal for Crataegus douglasii, providing adequate nutrients without overwhelming the plant. This balance promotes robust health and flowering. The soil should retain moisture without becoming soggy. This characteristic helps sustain the plant during dry spells, ensuring consistent growth and vitality.
How to Fertilize Black hawthorn?
Crataegus douglasii benefits from a balanced fertilizer that provides adequate macro and micronutrients. Use around 1 tablespoon per plant for granular fertilizers and dilute liquid fertilizers to half the recommended strength. Observing plant health and soil conditions will guide any adjustments needed to the fertilizer amount.
How to Prune Black hawthorn?
Prune in late winter or early spring before new growth begins or in autumn after the leaves have fallen. Avoid pruning if rain is expected, as damp conditions can promote disease. Make clean cuts at a 45-degree angle. For large branches, use the three-cut method: undercut, top cut, and finish with a final cut to prevent bark tearing.
More About Pruning Techniques→
How to Propagate Black hawthorn plant?
1
In late autumn, collect ripe hawthorn fruits from the plant. Clean the seeds thoroughly to remove the pulp, allowing them to dry for a few days before sowing.
2
During early spring, take semi-hardwood cuttings of about 6 inches from a healthy plant. Remove the lower leaves and dip the cut end in rooting hormone to enhance root development.
3
Select a healthy rootstock and a compatible scion. Ensure the cuts made on both parts are clean and match well, then tie them with grafting tape to ensure they grow together successfully.
How to Repot Black hawthorn plant?
1
Look for signs such as roots coming out of drainage holes, soil drying too quickly, or slowed growth. These are indicators that Crataegus douglasii needs a new home to stretch its roots and continue flourishing.
2
Choose a pot with good drainage and slightly larger than the current one, about 2 inches wider. This prevents root rot and allows room for growth without overwhelming the plant with too much unused soil space.
3
Select a well-draining organic mix that retains some moisture but doesn't stay waterlogged. This ensures that Crataegus douglasii's roots receive adequate air while maintaining necessary moisture, preventing root diseases.
