Crataegus chlorosarca — an easy houseplant, prefers full sun light
SPECIMEN · FROM THE LIBRARY
Crataegus chlorosarca

Crataegus Chlorosarca

Updated · 3 observations
ON THIS PLANT

Crataegus chlorosarca is an Asian species of hawthorn with black fruit. Although recommended as an ornamental and hardy in cold climates, it is rarely cultivated.

A note from PlantMom

Chlorosarca hawthorn is resistant to disease and is generally not prone to illnesses. In terms of care, this plant is fairly low maintenance. When grown outdoors it needs minimal watering, and larger plants typically do not require pruning. Smaller plants, however, should be pruned after they have bloomed. Chlorosarca hawthornt is suitable for anyone with an outdoor space, such as a garden or deck, and does not require a great deal of care experience.

— PlantMom
CARE GUIDE

How to keep Crataegus Chlorosarca.

Light

Chlorosarca hawthorn is native to open habitats, such as sunny meadows and forest edges, which supply abundant light. It thrives in Full Sun but can also tolerate Partial Sun, adapting well to a range of sunlight conditions.

Water

Chlorosarca hawthorn thrives in environments with moderate moisture, reflecting its preferred balanced habitat. It is drought-tolerant and typically needs watering every 2-3 weeks. As a deciduous plant, it sheds its leaves during dry periods, highlighting its adaptation to fluctuating water availability.

Temperature

Chlorosarca hawthorn shows strong adaptability to a variety of climate conditions, whether in hot summers or cold winters. Nevertheless, it has an optimal temperature range for growth. When temperatures become too high, the plant is susceptible to heat and humidity stress, which can lead to its death. In areas where temperatures approach the lower limit of its cold tolerance, it's important to provide insulation to protect the plant.

Fertilizer

The Chlorosarca hawthorn needs adequate nutrients to achieve optimal fruit production. Fertilize in early spring to encourage new growth and bloom development. Regular feeding helps the plant remain healthy, produce more delicious fruit, and avoid nutrient-deficiency problems such as yellow leaves and poor fruit production.

Pruning

Chlorosarca hawthorn is known for its dense foliage and thorny branches. To maintain its health and appearance, it's important to prune the plant in early spring. During this time, focus on removing any dead or crossing branches, which will help to promote a desirable shape and overall vitality. Regular thinning of the branches also improves air circulation, benefiting the plant. Every few years, consider performing rejuvenative pruning to encourage new growth. Always use sterilized tools when pruning to minimize the risk of disease, enhance the plant's aesthetics, and promote better flowering.

Pot & Repot

To ensure healthy growth and prevent root rot, Chlorosarca hawthorn needs excellent drainage when planted in pots.

CHARACTERISTICS

Botanical profile.

Plant Type
Tree
Life Cycle
Perennial
Genus
Crataegus
Family
Rosaceae
Hardiness Zone
4-8
Mature Height
6.1 m
Mature Spread
4.57 m
Leaf Color
Dark Green
Leaf Type
Deciduous
Flower Color
White
Flower Size
1.02 cm to 1.27 cm
Bloom Time
Mid spring, Late spring
Planting Time
Spring, Summer, Autumn
Harvest Time
Late summer, Early fall, Mid fall
Native Area
Russia, Japan
FREQUENTLY ASKED

Reader questions.

How should I water my Chlorosarca hawthorn plant?

To ensure excellent root development, place a garden hose at the base of the plants. Avoid spraying the leaves directly, and keep in mind that outdoor plants in direct sunlight will need more watering. You can use bubblers or soaker hoses to moisten the roots, and when adding or removing plants, use soaker hoses that cover the entire garden or bed to encourage deep root growth. After watering, drain any excess water and allow the soil to dry before watering again. To prevent diseases, water at ground level instead of spraying the leaves. On sunny days, it can be beneficial to spray the entire bush with water. Whether in pots or planted in the ground, keep in mind that Chlorosarca hawthorn plants prefer deep watering rather than light sprinkling.

What are the sunlight requirements for Chlorosarca hawthorn?

Chlorosarca hawthorn, also known by its botanical name Crataegus chlorosarca, thrives best in full sun conditions, which means it requires above 6 hours of sunlight daily. It can also tolerate partial sun conditions, getting about 3-6 hours of sunlight. Originating from open environments like sunny meadows and forest edges, this plant is well-adapted to various sunlight conditions, making it flexible for garden placements. Remember to observe how sunlight moves through your garden, finding spots that offer a balance of light and shade to ensure the well-being of your plants.

What is Chlorosarca hawthorn?

Chlorosarca hawthorn, scientifically known as Crataegus chlorosarca, is a plant species. Unfortunately, there is no further detailed information provided about its essentials, symptoms related to it, or any additional details.

What should I do if I give Chlorosarca hawthorn plant too much water or too little water?

An overwatered Chlorosarca hawthorn may show signs of yellowing, dropping leaves, and wilting. It may also look unhealthy with mushy stems. When these signs appear, it's best to adjust your watering schedule. Wilting can also occur due to under watering, in which case the leaves may become dry and crispy. Check the soil moisture and give the plant a thorough watering if needed. However, even with enough water, the Chlorosarca hawthorn may still have dry and yellow leaves due to root system damage. Once the plant recovers, the yellowing will stop. Indoors, check the moisture levels and avoid overwatering, watching out for black spots. If any are present, let the soil dry out for a few days. Overwatering can lead to root rot, so consider transferring the plant to a different pot if you notice discolored and slimy roots. It's important to prevent root rot and avoid overly soggy soil. When planting the Chlorosarca hawthorn outdoors, check the soil moisture by digging a little deeper. If the soil is too dry, it may indicate under watering, so ensure adequate watering to aid in plant recovery.

How can artificial lighting be used for Chlorosarca hawthorn?

When natural sunlight is limited, especially during winter or in less sunny indoor spaces, artificial lighting can be crucial for the growth of Chlorosarca hawthorn. LED lights are recommended due to their adaptability in providing specific light wavelengths that plants need. For full sun conditions, aim for 30-50W/sq ft, for partial sun, 20-30W/sq ft, and for full shade, 10-20W/sq ft of artificial lighting. The light source should be positioned 12-36 inches above the plant, ensuring it receives 8-12 hours of light per day to mimic natural daylight hours effectively.

How often do I need to water my Chlorosarca hawthorn plant?

The Chlorosarca hawthorn prefers deep watering, especially when planted in pots. Since the water storage in pots is limited, the soil dries out faster. In cold regions, water the plant every 3 to 5 days, preferably in the morning when the soil is dry. Check the soil inside the pot and if the top 2-3 inches are dry, give the plant a full watering. On hot days, monitor the moisture daily as the soil can quickly dry out. If you have a garden, irrigation is also necessary. In hot climates, water once a week when you notice about 2-3 inches of soil becoming too dry. Avoid watering if there has been sufficient rainfall to prevent root rot. During spring and fall, when the Chlorosarca hawthorn is outdoors, use mulch to conserve water. Sandy soil requires more frequent watering, while clay soil needs less frequent watering to prevent root rot. Keep track of watering dates and watch for drooping leaves, which may indicate a need for water.

What symptoms indicate insufficient or excessive sunlight for Chlorosarca hawthorn?

Chlorosarca hawthorn displays several symptoms under suboptimal light conditions. Insufficient sunlight can lead to small leaves, leggy or sparse growth, faster leaf drop, slower or no new growth, and lighter-colored or irregularly patterned leaves, indicating a lack of chlorophyll and essential nutrients. Conversely, excessive sunlight can cause chlorosis, sunscald, leaf curling, wilting, and leaf scorching, with signs like yellowing leaves, pale or necrotic spots, curled or twisted leaves, drooping, and brown, dry edges or patches on leaves. These symptoms either point to a defense mechanism against water loss and sunlight damage or highlight the stress and potential health decline due to inappropriate light exposure.

How much water should I give my Chlorosarca hawthorn?

The Chlorosarca hawthorn typically needs about a gallon of water on a regular basis. For potted plants, water them deeply until you see water dripping from the bottom of the pot. Then, allow the soil to dry before watering again. To determine the amount of water given to your plant in a week, you can use a water calculator or a moisture meter. During the flowering period, provide plenty of water but allow the moisture to evaporate afterwards to avoid root rot. If the Chlorosarca hawthorn is planted outdoors and receives adequate rainfall, it may not need additional watering. However, when the plant is young or newly planted, make sure it receives 1-2 inches of rain per week. As the Chlorosarca hawthorn matures, it can rely solely on rainfall. Only in extremely hot weather or a 2-3 week period without rain should you consider giving the Chlorosarca hawthorn a thorough watering during the cooler part of the day to prevent damage from high heat. Additional watering will be necessary during prolonged dry periods.

What solutions are available for addressing light-related issues in Chlorosarca hawthorn?

To optimize Chlorosarca hawthorn growth regarding light issues, gradually acclimatize your plant to receive at least 6 hours of direct sunlight daily by moving it to sunnier locations each week. For indoor plants, consider using artificial light sources like desk or ceiling lamps, or invest in professional plant grow lights, keeping them on for at least 8 hours daily. For outdoor plants, avoid sudden light intensity changes to prevent sunburn. If sunlight is blocked by physical obstructions like trees, pruning branches may help. For smaller, easily movable plants, consider transplanting them during their dormant period to a well-lit, well-drained location. Note that while affected parts may not recover, new growth will be healthy after adjusting light exposure.

Do I need to change how often I water my Chlorosarca hawthorn plant depending on the time of year or the weather?

The Chlorosarca hawthorn needs to be watered based on the weather conditions. In general, during the spring and fall, the soil should be kept moist but not soggy. Alternating dry and moist conditions will promote healthy growth. However, during hot summers with little rainfall, more frequent watering is necessary to keep the soil moist. During winter, less water is needed as the Chlorosarca hawthorn goes dormant and loses its leaves. It is best to use a well-draining soil mixture, such as terracotta, to allow for quicker water evaporation. During this dormant period, the plant can rely on natural rainfall. After the dormancy period, when the temperature warms up in spring, you can encourage growth and flowering by watering regularly. Good drainage is important throughout the year, especially during winter. If the Chlorosarca hawthorn is in a pot, it has limited root growth, so it should be well-watered, especially in summer. Adequate drainage is crucial, as cold and wet roots are not favorable for the plant. When watering, it is best to give the entire root system a deep soak at least once or twice a week, depending on the weather. Shallow sprinkles that only reach the leaves should be avoided, as they can promote fungal growth and do not reach the roots effectively. To prevent the plants from drying out completely in fall or winter, regular watering is still necessary, even during dormancy. Avoid overwatering, as the Chlorosarca hawthorn does not thrive in waterlogged conditions. Poor drainage during winter can lead to plant death. Applying mulch can help reduce stress, conserve water, and promote healthy blooms.

What should I watch out for when watering my Chlorosarca hawthorn in different seasons, climates, or during different growing periods?

When planting Chlorosarca hawthorn in the ground, it primarily relies on rain for water. However, if there hasn't been any rainfall for 2-3 weeks, it's important to consider giving the plants a deep watering. In the summer, try to water them in the morning to avoid stressing the roots with a large temperature difference between the water and the root system. It's best to avoid watering when it's too hot outside. Begin mulching the bushes in the spring when the ground is not too cold. The age of the plants is important, as newly planted ones often fail to grow due to lack of water. Once they are established, you can reduce the watering schedule. During fall and winter, especially if there is a water-retaining material in the soil, it's important to reduce watering as dry winds can dry out the plants and newly planted ones are at risk of drought. Windy seasons may require more watering. Plants in pots tend to dry out faster, so they need more watering. Look out for signs such as reduced blooming and drying leaves. Watering potted plants can be more complex and the frequency may fluctuate. Avoid letting the pot-planted plants sit in water, so containers with saucers, bowls, and trays should be avoided. Overwatering in the fall can result in mottled or yellowish foliage. Regardless of the climate or season, it's always important to prevent overwatering. During flowering months, consider increasing the watering frequency, but once the plants are fully grown, give them a rest. Water them adequately once every 3 to 5 days, but don't stick to a regular schedule. Check the soil moisture by sticking your finger in the pot or using a moisture meter. Be cautious not to overwater or underwater, as too much root rot can cause the plants to die.

Why is it important to water my Chlorosarca hawthorn plant?

To ensure the health of the Chlorosarca hawthorn, it is important to water it appropriately. The amount of water needed depends on the weather and the soil conditions in your area. While this species thrives in moist soil, it does not tolerate waterlogging. When planting it in the ground, make sure to provide enough mulch and avoid watering too little. When planted in a pot, it is beneficial to water the hawthorn with a full can, ensuring that the water is moist at the base to promote the best blooms. If you are growing it for foliage, water it to a depth of 10 to 20 inches so it can continue to grow. If it is raining, there is no need to water the plant as it can absorb the necessary nutrients from the rainwater.

PLATES
Crataegus chlorosarca leaf
PLATE 01 · leaf
Crataegus chlorosarca leaf
PLATE 02 · leaf
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