Crataegus phaenopyrum
Washington hawthorn · Washington-thorn
Description
Source: leafsnapCrataegus phaenopyrum is a species of hawthorn commonly known as Washington hawthorn or Washington thorn. It is widely grown as an ornamental plant, and can reach 10 m (about 32 feet) in height. The small red berry-like fruit grow closely together in large clusters and are food for squirrels and birds. They have a mild flavor and can be eaten raw or cooked. As with other species of hawthorn, the wood is hard and can be used to make tools. The fruit is edible and can be made into jelly or crushed to make tea.
Care Guide
💧 Water
The Washington hawthorn thrives in areas with moderate humidity and occasional rainfall. It prefers consistent moisture but can withstand short periods of dryness. To make use of natural precipitation, water the plant outdoors every three weeks. This will ensure it stays properly hydrated during the growing season, which will promote healthy foliage and enhance its fall color.
How should I water my Washington hawthorn tree?
To ensure excellent root development, place a garden hose at the base of your plants. Avoid spraying the leaves directly, as this can lead to overwatering. If your plants are outdoors and in direct sunlight, their leaves will need more water. To moisten the roots, you can use bubblers or soaker hoses. When adding or removing plants, use soaker hoses to thoroughly water the entire garden or bed, helping the roots grow deep. After watering, be sure to drain any excess water and wait for the soil to dry before watering again. Watering at ground level helps prevent diseases. On sunny days, consider spraying the entire bush with water. Whether your plants are in pots or planted in the ground, remember that Washington hawthorn prefers deep watering rather than light sprinkling.
If I give too much or too little water to a Washington hawthorn tree, what should I do?
When a Washington hawthorn is overwatered, you may notice yellow leaves that fall off and wilt. The plant may also appear dull and unhealthy, with mushy stems. To address these issues, it's best to adjust your watering schedule as needed. Wilting can also be a sign of under watering, in which case the leaves may become crispy and dry. If the soil is dry and simply watering isn't enough, give the plant a thorough watering. While enough water will help the Washington hawthorn recover, it may still have dry and yellow leaves due to root damage. Once it returns to normal, the yellowing will stop. When keeping a Washington hawthorn indoors, always check the moisture levels in the pot to avoid overwatering. Look out for signs of black spots, and if present, allow the soil to dry out by withholding water for a few days. Overwatering can result in root rot, so if you see discolored and slimy roots, consider transferring the plant to a different pot. It's important to prevent root rot by avoiding excessively soggy soil. When planting a Washington hawthorn outdoors, make sure to check the moisture level by digging a little deeper. If the soil feels too dry, it may indicate underwatering, requiring adequate watering to aid in the plant's recovery.
How frequently should I water my Washington hawthorn?
The Washington hawthorn prefers deep and infrequent watering. When planted in pots, it's important to soak them in a gallon of water each time, as the soil in pots dries out faster. In cold regions, watering is required every 3 to 5 days. It's best to water early in the morning when the soil is dry, both indoors and outdoors. You can check the soil moisture by feeling the top 2-3 inches of soil and if it's dry, the plant needs a full watering. On hot days, check the soil moisture daily as the heat can quickly dry it out. If you have a garden, irrigation is necessary. In hot climates, watering once a week is recommended. Be mindful of the amount of rainwater on the plant and avoid overwatering to prevent root rot. Adding mulch about 3 to 4 inches deep can help conserve water when the plants are outdoors. Sandy soil requires more frequent watering, while clay soil needs less frequent watering to avoid root rot. Keeping track of watering dates and observing drooping leaves can help ensure timely watering.
How much water should I give my Washington hawthorn plant?
The watering needs of the Washington hawthorn can vary depending on its growth stage. For potted plants, it is best to water them deeply until you see water dripping out of the bottom of the pot. Allow the soil to dry before watering again. You can use a water calculator or moisture meter to determine the amount of water your plant has received in a week. During the flowering period, it is important to provide ample water but allow the moisture to evaporate to prevent root rot. If the Washington hawthorn is planted outdoors and receives adequate rainfall, additional watering may not be necessary. However, when the tree is young or newly planted, ensure it receives 1-2 inches of rain per week. As the hawthorn tree grows, it can rely on rainfall alone. Only during extremely hot weather or extended periods without rainfall (2-3 weeks) should you consider giving the tree a full watering during the cooler part of the day to prevent damage from high heat. Additional watering may be needed during prolonged dry spells.
Do I need to change how often I water my Washington hawthorn depending on the time of year or the weather?
The Washington hawthorn needs rain for outdoor growth, but only if the weather is persistently dry. During the spring and fall, keep the soil moist but not soggy to help it grow well. In the summer, hot weather and lack of rainfall may cause the water to evaporate quickly, so water more frequently to keep the soil moist. Less water is typically needed during winter when the plant goes dormant. Use a well-draining soil mixture like terracotta to help the water evaporate. Once the plant begins to leaf out and go dormant, you can stop watering and rely on fall and winter rains. In spring, cultivate the Washington hawthorn to encourage growth and blooming. Ensure good drainage, especially during winter, and if the plant is in a pot, keep it well-watered. Deeply soak the root system once or twice a week, avoiding shallow sprinkles that reach the leaves. Don't let the plant dry out completely, even in dormancy. Avoid over-watering to prevent sitting in water for too long, which can be fatal during winter. Applying mulch can reduce stress, conserve water, and promote healthy blooms.
☀️ Light Full sun
Washington hawthorn does best in locations that receive plenty of sun for most of the day, though it can remain healthy in sites with only moderate light. In full sun the plant will flower and bear fruit well, but too little sun can limit that development. Its native habitat receives abundant sunshine each day.
What are the sunlight requirements for Washington hawthorn?
Washington hawthorn thrives in areas with full exposure to sunlight for the majority of the day, which allows it to blossom and fruit efficiently. It requires above 6 hours of sunlight for 'Full sun' conditions and about 3-6 hours for 'Partial sun'. Despite its preference for abundant sunlight, it can still maintain health in moderate sunlight. However, insufficient sunlight may restrict its development. It's essential to watch how sunlight moves through your garden to ensure your plants receive a balance of light and shade, enhancing their growth and happiness.
How can artificial lighting be used for Washington hawthorn indoors?
When natural sunlight is insufficient, especially during winter or in less sunny spaces, artificial lighting can be crucial for the growth of Washington hawthorn indoors. LED lights are recommended due to their customization to provide specific wavelengths required by plants. Full sun plants need 30-50W/sq ft, partial sun plants require 20-30W/sq ft, and full shade plants need 10-20W/sq ft of artificial light. The light source should be placed 12-36 inches above the plant, mimicking natural sunlight's distance, and ensure the plant receives 8-12 hours of light per day to promote faster, healthier growth.
What symptoms indicate insufficient sunlight for Washington hawthorn?
Symptoms of insufficient sunlight for Washington hawthorn include small leaves, leggy or sparse growth, faster leaf drop, slower or no new growth, and lighter-colored new leaves. Conditions such as chlorosis, where leaves lose their green color and turn yellow, sunscald resulting in pale or necrotic areas on plant tissue, leaf curling as a defense mechanism against excessive sunlight, wilting due to increased water loss, and leaf scorching characterized by brown, dry edges on leaves also indicate poor light conditions or overexposure to sunlight.
What solutions can improve Washington hawthorn's exposure to sunlight?
To optimize Washington hawthorn's growth, gradually moving the plant to a location with at least 6 hours of direct sunlight daily is recommended. For indoor plants, use a south-facing window or consider artificial light sources like desk or ceiling lamps on for at least 8 hours daily. Outdoor plants should be moved to sunnier spots gradually to prevent sunburn. Reducing obstructions, such as pruning branches that block sunlight or transplanting the plant to a location with better sunlight and drainage, can also greatly benefit the plant's health. Note that parts of the plant affected by previous insufficient sunlight may not recover, but new growth should be healthy with improved light conditions.
🌡️ Temperature 0–32.2°C
Washington hawthorn is highly adaptable to a wide variety of climates, whether facing hot summers or cold winters. Still, it has an ideal temperature range for growth. When temperatures become too high, the plant is vulnerable to heat and humidity stress, which can cause it to die. In locations where temperatures approach the lower limit of its cold tolerance, insulating measures should be used to protect the plant.
What is the botanical name of the Washington hawthorn?
The botanical name of the Washington hawthorn is Crataegus phaenopyrum.
💨 Humidity
🪴 Soil 6-7
🌱 Fertilizer
The Washington hawthorn needs adequate nutrients for optimal fruit production. Apply fertilizer in early spring to encourage new growth and bloom development. Regular feeding keeps the plant healthy, produces more delicious fruit, and prevents nutrient-deficiency problems like yellow leaves and poor fruit production.
Why should I put fertilizer on my Washington hawthorn?
Regular fertilization is key to cultivating a healthy Washington hawthorn, regardless of the type you own. Providing the right nutrients will promote robust growth and enhance its resilience against harsh conditions, as well as strengthen its ability to ward off diseases and pests. Since the foliage of the Washington hawthorn is one of its most appealing attributes, it is important to maintain its integrity. To achieve this, establish and stick to a consistent fertilization regimen tailored to your specific Washington hawthorn. By doing so, you will encourage the development of vibrant, lush leaves.
When should I fertilize my Washington hawthorn tree?
To properly fertilize your Washington hawthorn, start in late winter or early spring. This will provide the tree with the necessary nutrients for healthy growth when the weather warms up. If you live in a warm climate, it's also beneficial to give another round of fertilizer in early fall. This not only adds nutrients for the following growing season but also helps the tree withstand winter without foliage damage. Fertilizing earlier in the year allows new branches to develop and withstand the cold winter.
When is the best time to not fertilize my Washington hawthorn?
There are a few specific times throughout the year when you should avoid fertilizing your Washington hawthorn. The first period is in the early and mid-winter months when the plant is dormant and does not require feeding. Another time to avoid fertilizing is from late spring through summer. During this period, the weather is usually hotter and drier, which can have a negative impact on the plant if fertilized. To prevent any issues, it is recommended to stick to a fertilization schedule that only includes feeding in early spring and early fall.
What kind of plant food does my Washington hawthorn tree require?
The most important nutrient for a Washington hawthorn is usually nitrogen, but phosphorus and potassium are still important. It's best to use a balanced fertilizer like a 10-10-10, since your Washington hawthorn needs all three nutrients. However, using a fertilizer with a slightly higher nitrogen ratio, like 10-6-4, can lead to better growth. You can choose either a granular or liquid-based fertilizer when applying it.
How do I give nutrients to my Washington hawthorn plant?
To fertilize your Washington hawthorn, you have two options: granular fertilizer or liquid fertilizer. With granular fertilizer, simply sprinkle it on the soil at the right time. It releases nutrients slowly over time, but it's recommended to lightly water the plant before applying the fertilizer. The less common option is liquid fertilizer. Mix it with water, then pour the mixture around the base of the plant. Before fertilizing, it's a good idea to perform a soil test to check if the pH needs adjustment.
🪴 Pot & Repot Every 12 months
For optimal growth and to prevent root rot, Washington hawthorn needs excellent drainage when planted in pots.
✂️ Pruning
To maintain the health and shape of a Washington hawthorn tree, it is important to prune it regularly in early spring. Remove any dead wood and thin out crowded branches to improve air circulation, enhance flowering, and reduce the risk of disease. Make sure to make clean cuts just above the buds to ensure effective healing.
🌿 Propagating
🐛 Diseases & pets
☠️ Toxicity
These plants are among the many common landscaping plants poisonous to dogs. But, on a positive note, they are deer-resistant.
Characteristics
- Plant Type
- Tree, Shrub
- Life Cycle
- Perennial
- Genus
- Crataegus
- Family
- Rosaceae
- Hardiness Zone
- 3-7
- Mature Height
- 7.62 m to 9.14 m
- Mature Spread
- 6.1 m to 7.62 m
- Leaf Color
- Green, Red, Orange
- Leaf Type
- Deciduous
- Flower Color
- White
- Flower Size
- 2.54 cm
- Bloom Time
- Early summer, Mid summer
- Planting Time
- Spring, Autumn
- Harvest Time
- Fall