Diospyros kaki
خرمالوی ژاپنی · فاكهة الكاكا · کاکی · الكاكي · Λωτός
Description
Source: leafsnapDiospyros kaki, commonly known as the persimmon tree, is a deciduous tree belonging to the Ebenaceae family. Native to China and Japan, it has been widely cultivated in other parts of the world. The persimmon tree can grow up to 20 meters tall and features a broad crown with dark green leaves that turn yellow or red in autumn. The fruit of Diospyros kaki, known as persimmon, is a berry-like fruit that varies in color from yellow-orange to dark red-orange when ripe. It has a sweet and tangy flavor with soft flesh that can be eaten fresh or used in cooking. The wood of Diospyros kaki is hard and durable, making it suitable for furniture making and construction. In traditional Chinese medicine, various parts of the plant are used for treating ailments such as coughs, diarrhea, and high blood pressure. Overall, the Diospyros kaki plant serves both ornamental and economic purposes due to its beautiful appearance and delicious fruits. These fruits are rich in vitamins A and C, as well as other nutrients like fiber and antioxidants, making them an important part of the human diet.
🌳 More than being known as a tasty snack in East Asia, Japanese persimmon has notable uses. Its unripe juice, high in tannins, has long been used for tanning leather. In addition, Japanese persimmon ferments to produce shibuol, a distinctive Japanese alcoholic beverage. Not to be overlooked are its medicinal qualities: in Traditional Chinese Medicine, Japanese persimmon is used to promote hydration, relieve thirst, and reduce diarrhea, emphasizing its range of health benefits.
🎭 Change of sex, Healing, Luck
Care Guide
💧 Water Every 7 days
The Japanese persimmon thrives in moderate water conditions, requiring watering every one to two weeks. Originating from humid subtropical regions, it benefits from rainfall during its growing season, which helps maintain the necessary moisture levels. This plant is an evergreen and is often grown outdoors.
What's the best way to water my Japanese persimmon?
To ensure excellent root development, consider using a garden hose at the base of your plants. It's important to avoid spraying the leaves directly, especially if they are outdoors and exposed to direct sunlight. To moisten the roots, you can use bubblers or soaker hoses for each plant. When adding or removing plants, using soaker hoses that cover the entire garden or bed can help push the roots deep into the soil. After watering, make sure to 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 a sunny day, it may be beneficial to spray the whole bush with water. Whether your Japanese persimmon is potted or in the ground, remember that deep watering is preferred over light sprinkling.
What should I do if I give too much or too little water to Japanese persimmon?
If a Japanese persimmon is overwatered, its leaves may turn yellow, drop off, and wilt. The plant may also appear unhealthy and dull, with mushy stems. If you notice these signs, it's best to adjust your watering schedule when possible. However, wilting can also be a sign of underwatering. In this case, the leaves may become crispy and dry. When the soil is dry and simply watering is not enough, give the plant a thorough watering on time. Sufficient water will help the Japanese persimmon recover, but the plant may still have dry, yellow leaves for a few days due to damage to the root system. Once the plant returns to normal, the yellowing of the leaves will stop. If you have a Japanese persimmon indoors, always check the moisture levels in the pot. Avoid overwatering and look for signs of black spots. If you see these spots, let the soil dry out by refraining from watering for a few days. Overwatering can lead to root rot, so if you suspect this is happening, consider transferring the plant to a different pot, especially if you notice discolored and slimy roots. It is important to prevent root rot by avoiding overly soggy soil. When planting a Japanese persimmon outdoors, dig a little deeper. If you find the soil is too dry when you check with your fingers, this may indicate underwatering. Adequate watering is necessary to help the plant recover.
How frequently should I water my Japanese persimmon tree?
The Japanese persimmon prefers deep and infrequent watering, especially when planted in pots. To ensure proper hydration, soak them in a gallon of water each time. Since the water storage in flower pots is limited, the soil can dry out quickly. In colder regions, water every 3 to 5 days, preferably in the morning when the soil is dry. To determine if watering is necessary, check the soil inside. If the top 2-3 inches of soil are dry, it's time to water the plant thoroughly. On hot days, check the moisture level daily as the pot soil can dry out rapidly. In garden areas, irrigation is necessary as well. In hot climates, watering once a week should suffice. Only water when you notice that about 2 to 3 inches of soil have become too dry. Take into account the amount of rainfall to prevent overwatering and root rot. During the growing seasons (spring and fall), outdoor plants may require mulch about 3 to 4 inches deep to conserve water. Sandy soil drains faster and thus requires more frequent watering. On the contrary, clay soil can go 2-3 days without water to avoid root rot. Keeping track of watering dates on a calendar can help ensure timely hydration. If the leaves start drooping, it might be an indication that watering is slightly overdue.
How much water does my Japanese persimmon tree need?
The Japanese persimmon generally needs about a gallon of water on a regular schedule. For potted plants, water them deeply until you see water dripping out of the bottom of the pot. Then, wait for the soil to dry before watering them again. You can use a water calculator or moisture meter to keep track of how much water you've given your plants in a week. During the flowering period, provide plenty of water but allow the moisture to dry out afterwards to prevent root rot. If the Japanese persimmon is planted outside and receives adequate rainfall, additional watering may not be necessary. However, when the tree is young or newly planted, make sure it receives 1-2 inches of rain per week. As the tree grows, it can rely on rainfall alone, unless there is a prolonged period without rain. In hot weather or during a 2-3 week dry spell, consider giving the tree a thorough watering during the cooler part of the day to prevent heat damage. Additional watering will be needed during persistently dry spells.
Should I change how often I water my Japanese persimmon tree based on the time of year or the weather conditions?
The Japanese persimmon thrives in outdoor environments with regular rainfall, but can also handle persistent dry weather. To maintain optimal growth during the spring and fall seasons, keep the soil moist but not soggy. It's important to alternate between dry and moist soil conditions. In the summer, when hot weather causes water to evaporate quickly, additional watering may be necessary if there is a lack of rainfall. However, during winter, the Japanese persimmon requires less water as it goes dormant and drops its leaves. To assist with water evaporation, use well-draining soil mixtures like terracotta. Once the Japanese persimmon begins to leaf out and go dormant, you can stop watering and rely on fall and winter rains for survival. When cultivating the plant and encouraging growth and flowering, ensure good drainage, especially during winter. If the Japanese persimmon is planted in a pot, keep in mind that the limited root growth requires regular watering, especially during summer. It's best to water deeply at least once or twice a week, avoiding shallow sprinkles that can promote fungal growth. During fall and winter, even in dormancy, prevent the persimmon from drying out completely. Avoid overwatering to prevent the plant from sitting in water for too long, as this can lead to the plant's death in winter. Additionally, applying mulch helps reduce stress, conserve water, and promote healthy blooms.
☀️ Light Full sun
Japanese persimmon grows best when it gets plenty of sunlight each day. Enough light supports healthy growth and fruiting. In its native habitat, it is accustomed to basking in abundant sun. It can also cope with a more limited amount of sun, though that may affect its growth and yield. Both too much and too little light can stress the plant.
What are the sunlight requirements for Japanese persimmon?
Japanese persimmon thrives in environments that provide abundant daily sunlight. Full sun, defined as more than 6 hours of sunlight a day, is ideal for its healthy growth and fruiting. However, the plant can also adapt to partial sun, receiving about 3-6 hours of sunlight, although this might affect its growth and yield. Excessive or inadequate light can cause stress to the plant, so it's important to watch how sunlight moves through your garden to find the perfect balance for your Japanese persimmon.
How can artificial lighting be used for Japanese persimmon?
Indoor Japanese persimmon plants require adequate lighting for optimal growth. When natural sunlight is not enough, especially during winter or in less sunny spaces, artificial lights can be vital. For achieving the best results, select the right type of artificial light, with LED lights being a popular choice due to their customizability in providing specific wavelengths needed by plants. The intensity of the light should range based on the plant's natural sunlight needs: 30-50W/sq ft for full sun plants, 20-30W/sq ft for partial sun, and 10-20W/sq ft for full shade plants. Place the artificial light source 12-36 inches above your plant and ensure it receives 8-12 hours of light per day to mimic natural daylight hours.
What are the symptoms of light deficiency or excess in Japanese persimmon?
Japanese persimmon shows different symptoms depending on whether it is experiencing light deficiency or excess. Insufficient light can lead to smaller new leaves, leggy or sparse growth, faster leaf drop, slower or no new growth, lighter-colored new leaves, and chlorosis (yellowing leaves). On the other hand, excessive sunlight exposure can cause symptoms like sunscald, leaf curling, wilting, leaf scorching, and overall plant health reduction. These symptoms indicate the plant's struggle with adapting to the light conditions, signaling the need for adjustment in their light exposure.
What solutions are recommended for managing light conditions for Japanese persimmon?
For indoor Japanese persimmon plants struggling with light conditions, gradually moving the plant to sunnier locations or using artificial light can be effective. Gradually increase the plant's exposure to natural light or keep an artificial light source on for at least 8 hours daily. For outdoor plants, it's crucial to acclimate them to the best sunlight spot without causing sunburn. This might involve gradually moving them to sunnier locations each week. Minimizing obstructions, such as pruning nearby trees, or transplanting the plant during its dormant period to a spot with better sunlight and drainage, can also help manage light conditions and ensure the plant's health and growth.
🌡️ Temperature 10–37.8°C
The japanese persimmon prefers temperatures between 50 and 100 ℉ (10 to 38 ℃), similar to conditions in its native habitat. It is a temperate woody plant that can tolerate seasonal temperature fluctuations. In winter, it can survive mild freezing down to 15 ℉ (-9.4 ℃).
What temperatures are ideal for the Japanese Persimmon?
The Japanese persimmon thrives in temperatures ranging from 50 to 100°F (10 to 38°C), mirroring the climate of its native habitat. It is a temperate woody plant adept at handling seasonal temperature shifts. During winter, it tolerates mild freezes down to 15°F (-9.4°C) without the need for special frost protection measures. However, in regions where winter temperatures drop below -25°C, it is crucial to protect the plant against the cold by wrapping the trunk and branches with non-woven fabric or cloth. Additionally, watering the plant generously before the first freeze of autumn helps keep the soil moist and prevents drought and water scarcity throughout the winter and early spring.
How does low temperature affect Japanese Persimmon and what are the solutions?
Japanese persimmon demonstrates strong cold tolerance, preferring temperatures to remain above 10°C. It is crucial to maintain winter temperatures above -15°C to avoid damage. When exposed to temperatures below -25°C, the plant may not show immediate distress, but its branches can become brittle and dry by spring, hindering the emergence of new shoots. The solution to this challenge is straightforward: in spring, prune away any dead branches that failed to produce new leaves, stimulating the growth of healthy new ones.
How does high temperature affect Japanese Persimmon and what are the solutions?
During the summer, it is important to ensure the Japanese persimmon does not experience temperatures above 38°C. Exposure to temperatures exceeding 43°C can cause the plant's leaves to lighten in color and their tips to dry out and wither, increasing susceptibility to sunburn. To mitigate these issues, trim away the damaged portions of the plant. Additionally, moving the plant to a shaded location or employing a shade cloth can provide protection from the harsh midday and afternoon sun. Maintaining soil moisture through watering in the morning and evening is crucial for the plant's health during high temperatures.
💨 Humidity
🪴 Soil 6-7
🌱 Fertilizer
The Japanese persimmon plant needs adequate nutrients to achieve optimal fruit production. Fertilize in early spring to support new growth and bloom development. Regular fertilization keeps the plant healthy, encourages tastier fruit, and prevents nutrient deficiency problems such as yellow leaves and poor fruit production.
Why is it necessary to fertilize my Japanese persimmon tree?
Plants need continuous nutrients from the soil to grow, and fast-growing types of plants deplete the soil of nutrients quickly. Regular fertilization is important for the Japanese persimmon to ensure it stays healthy and produces delicious fruit. If plants are not fertilized for a long time, they may face various problems. Nutrient deficiency can result in foliage issues, such as yellow leaves or reddish color. It can also cause deformities in leaf shape, withered tips, or even large portions of the plant dying back. Some nutrient deficiencies can also lead to bark disorders, slow growth, poor shoot development, and a lack of fruit production.
When should I put fertilizer on my Japanese persimmon tree?
The best time to fertilize Japanese persimmon trees is in early spring, before the buds start growing. During this time, the tree relies on the energy it stored over winter to produce new growth. To support the development of blooms, it's important to fertilize the tree 2 to 4 weeks before you expect it to bloom. This gives enough time for the nutrients to soak into the soil and be absorbed by the plant. It's also possible to continue fertilizing the tree throughout spring, but avoid fertilizing in autumn as this can cause excessive foliage growth late in the season, making the leaves vulnerable to winter damage.
When is it best not to use fertilizers on my Japanese persimmon?
To ensure the healthy growth of Japanese persimmon, it is important to follow these guidelines for fertilizing. In the first year of growth, it is recommended to avoid fertilization altogether. Even after that, it is important to assess whether fertilization is necessary before proceeding. Additionally, if more than 20% of the plant was pruned the previous year, fertilization should be avoided. Similarly, if the plant is diseased or damaged, fertilization should not be done as it can be harmful. Remember that fertilizer is not a cure-all solution and it is important to address the underlying issue before considering fertilization. Timing is also crucial when it comes to fertilizing Japanese persimmon. Avoid fertilizing after the peak of summer, as this can result in excessive growth right before winter. Similarly, refrain from fertilizing during hot and dry periods, as dry soil does not effectively deliver fertilizer and it can stimulate growth that requires more water, which may not be available. It is best to apply fertilizer earlier in the season when temperatures are cooler. Lastly, it is worth noting that Japanese persimmon can absorb fertilizer from nearby plants or lawns, so take care to avoid inadvertently providing plants with a double dose of fertilizer.
What kind of plant food does my Japanese persimmon tree need?
Using fertilizer that contains a balance of nitrogen, phosphorus, and potassium can bring many benefits to plants. Nitrogen is important for leaf growth and chlorophyll production. Phosphorus helps support the root system and promotes the development of blossoms, fruits, and seeds. Potassium plays a role in photosynthesis and the movement of water and nutrients throughout the plant. When choosing a fertilizer, you can opt for a commercial one that is specifically designed for a particular type of tree. Alternatively, you can use organic sources of nitrogen such as manure, feather meal, or blood meal. To ensure you apply fertilizer accurately, conducting a soil test can give you a better understanding of the condition of your soil. For commercial fertilizers, if your soil lacks sufficient phosphorus and potassium according to the soil test, you can use a balanced granular fertilizer with a ratio of 10-10-10 or similar. In most cases, nitrogen in the soil is continuously depleted with rainfall. If your soil already has enough phosphorus and potassium, it would be more appropriate to use a high-nitrogen fertilizer with a ratio of 6-2-1 or 10-2-2.
How can I fertilize my Japanese persimmon tree?
To successfully fertilize your Japanese persimmon tree, make sure to follow the specific instructions for the type of fertilizer you are using. It is important to avoid over-fertilizing, so determining the correct amount is crucial, especially for fruit trees. A general guideline is to use the age of the tree (if known) or the trunk diameter to determine the amount of fertilizer needed. As a rule of thumb, estimate about one-tenth of a pound of fertilizer per year or per inch of trunk, with a maximum of one pound. It's worth noting that Japanese persimmon trees should not be fertilized during the first few years. Granular and organic fertilizers like blood meal can be applied by sprinkling them around the base of the tree, extending all the way to the drip line (which is the area under the outermost branches). Be careful not to let the fertilizer come into direct contact with the trunk. Over time, the granules will break down and seep into the soil, where the tree's roots can absorb them. After fertilizing, spread a layer of compost around the base of the tree, about an inch deep, and water thoroughly.
🪴 Pot & Repot 2-3 years
When repotting a Japanese persimmon, select a container 1-2 inches (2.5–5.1 cm) larger with ample drainage. Use a well-draining potting mix. Repot in spring or fall, ensuring the root ball sits slightly lower than the rim of the pot. Water thoroughly after repotting and place it in a warm spot with indirect sunlight.
✂️ Pruning
The Japanese persimmon is known for its unique orange fruits and glossy leaves. To keep the tree healthy, effective pruning is essential. This involves removing dead branches, thinning out branches to improve airflow, and shaping the canopy. The best time to prune is in late winter. These practices promote healthier growth, allow more sunlight to reach the tree, increase fruit yield, and enhance the appearance of the Japanese persimmon.
🌿 Propagating
🐛 Diseases & pets
☠️ Toxicity
Diospyros kaki has no toxic effects reported.
Characteristics
- Plant Type
- Tree
- Life Cycle
- Perennial
- Genus
- Diospyros
- Family
- Ebenaceae
- Hardiness Zone
- 6-11
- Mature Height
- 10.06 m to 14.02 m
- Mature Spread
- 10.06 m to 13.11 m
- Leaf Color
- Green, Yellow, Red, Orange, Purple
- Leaf Type
- Deciduous
- Flower Color
- Yellow, Cream
- Flower Size
- 2.03 cm to 2.54 cm
- Bloom Time
- Late spring, Early summer
- Planting Time
- Spring, Autumn
- Harvest Time
- Mid summer, Late summer, Early fall
- Native Area
- India, Cambodia, Vietnam, Myanmar, Philippines, Laos, South Korea, China