Viburnum suspensum
Viburnum
Description
Source: leafsnapViburnum suspensum, commonly called Sandankwa viburnum, is a compact, perennial shrub, native to Japan. It grows up to 3.7 m in height.The coarse leaves are dark green and densely cover the shrub. They are oval with serrated edges about 3.5 inches (8.9 cm) long and 2 inches (5 cm) wide and are held oppositely on rough textured, dark brown stems. Small tubular flowers are borne on the ends of new branches in the spring, and sporadically appear in the summer. They are white to pale pink, followed by small red berries in the fall that attract wildlife.
Care Guide
💧 Water
Sandankwa viburnum thrives in moderately humid, subtropical regions and can adapt to occasional drought. It prefers consistent moisture and needs watering every 1-2 weeks, allowing the soil to dry slightly between waterings. Typically grown outdoors, it benefits from mulching, which helps retain moisture by mimicking the leaf litter of its natural habitat.
What is the best way to water Sandankwa viburnum?
Using soaker hoses can be a great way to keep leaves and flowers moist without getting the entire plant wet. To use this method, simply lay the hose around the base of the plant and leave it on for about 30 to 45 minutes. Make sure the soil becomes moist, but not overly saturated. Another option is to use drip feeders to keep the plant continuously hydrated throughout the day. If you have a Sandankwa viburnum planted in a pot, it's best to water it using a watering can. Wait until you see water dripping out of the bottom of the pot to ensure that the roots are well-watered. Using a portable watering can allows you to easily reach the soil and thoroughly penetrate the roots, promoting better growth.
What happens if I give Sandankwa viburnum too much or too little water?
If you have overwatered your Sandankwa viburnum, it's important to take a step back and prevent further damage. Luckily, these plants are hardy and have a good chance of surviving. Allow the plant to dry out by stopping watering it, as the roots don't tolerate sitting in water for extended periods of time. Aeration can help in this process. Symptoms of overwatering can include the premature falling of yellow leaves, fewer flowers, and misshapen buds. In severe cases, the plant may have wilted and brown leaves. Over time, overwatering can lead to root rot. Symptoms of underwatering can be similar. If your Sandankwa viburnum is wilting, it could be a sign of underwatering. Test the soil's moisture level by sticking your finger into it. If it feels too dry, it means the plant is dehydrated. In such cases, you may need to water it in the evening. Always check the soil's dryness and stick to a regular watering schedule, preferably in the morning.
How often should I give water to Sandankwa viburnum?
To properly care for the Sandankwa viburnum, it is recommended to water it deeply two to three times a week. If you live in a hot climate, it may need to be watered more frequently. It requires average amounts of water and prefers moist but well-drained soil. A good way to gauge when to water the plant is by checking the soil moisture level. If the top 2-4 inches of soil are dry, it is a good indication that watering is needed. If the plant is outdoor, it can be watered 1-2 times a week, taking into account the additional moisture it receives from rainwater.
How much water does my Sandankwa viburnum plant need?
The amount of water needed for your Sandankwa viburnum plants can vary depending on several factors. These factors include the weather in your area, the amount of shade the plants receive, and the specific species of the viburnum. It's important to note that newly planted Sandankwa viburnum plants will typically require more water than established ones. For Sandankwa viburnum plants, watering them with a can of water each week can be sufficient, especially during the growing season or if they are grown in pots. When the plants are outdoors, it's a good idea to keep track of the amount of rain they receive by using moisture meters. If the soil around the plants is dry, it's important to thoroughly water them with a sprinkler. To ensure that your Sandankwa viburnum plants receive the right amount of moisture, it's best to water them less frequently but more thoroughly. This will help to ensure that they receive the adequate moisture they need to thrive.
Why do I need to water my Sandankwa viburnum plant?
No matter what kind of plant you're growing, it's crucial to understand its watering requirements to ensure healthy growth. Sandankwa viburnum, for instance, requires abundant water to thrive and may wilt if not properly hydrated. It prefers soil that is moist but well-drained, as overly wet conditions can result in root rot. Striking the right balance is key, as both overwatering and underwatering can lead to issues like reduced flower production and stunted growth.
☀️ Light Partial sun
Sandankwa viburnum grows best in locations with moderate sunlight but can also establish in areas fully exposed to the sun. The plant needs light for healthy development. Its growth stages do not slightly vary in their sunlight requirements. Originating from the forest understory, sandankwa viburnum's growth is endangered by either too little or too much sun exposure.
How much sunlight does Sandankwa viburnum need to grow?
Sandankwa viburnum needs 3-6 hours of direct sunlight daily to thrive. It should also have some shade during the hottest parts of the day to avoid sun damage. The best sunlight for Sandankwa viburnum is in the morning, but it can handle some afternoon sun as long as it's not too hot. To achieve the right amount of sunlight, consider planting the viburnum in a partially sunny area, like under a tree or on the east side of a building.
What will happen if Sandankwa viburnum doesn't get enough sunlight?
To prevent sun damage, ensure that Sandankwa viburnum receives some shade during the hottest times of the day. If the plant is exposed to excessive direct sunlight, its leaves may become yellow, dry, or burn. Additionally, the plant may wilt or appear stunted. You can provide shade by using a shade cloth or positioning Sandankwa viburnum near taller plants that will naturally provide some shade.
If Sandankwa viburnum gets too much sunlight, what will happen?
When Sandankwa viburnum is lacking sunlight, it can become tall and thin with not much foliage. The leaves may turn yellow or pale green, which means the plant isn't getting enough sunlight to produce chlorophyll. To fix this, you can try moving the Sandankwa viburnum to a sunnier spot or trimming nearby foliage to let more light reach the plant.
🌡️ Temperature 15–35°C
Sandankwa viburnum originates from temperate regions and thrives in temperatures of 59 to 95 °F (15 to 35 °C). To replicate its native environment, keep temperatures within that range and adjust them during peak winter or summer as needed.
What temperature is best for Sandankwa viburnum?
Plants can be affected by colder temperatures when the air around them becomes chilly. While they can warm up when exposed to sunlight, this is not the case during winter. The optimal temperature range for the Sandankwa viburnum is typically between 70 to 85°F (21 to 30°C). They might tolerate temperatures as low as 20 to 30°F (-6 to 0°C), or even 15°F (-10°C), but prolonged exposure to such cold can cause frost damage. It is crucial to ensure maximum temperatures stay within the 70 to 85°F (21 to 30°C) range. Additionally, remember to occasionally spray them with water and provide some shade to prevent wilting.
Do I need to change the temperature for Sandankwa viburnum as it grows?
To ensure optimal growth for Sandankwa viburnum, it is important to research and understand the appropriate temperature requirements. While some growers may consider adjusting the plants' thermostats to save on heating and cooling costs, it is crucial to recognize that temperature can impact various factors such as flowering, pest control, and overall plant quality. In winter, certain species may enter a dormant state, causing growth to stop at a specific temperature threshold. As the seasons change and the base temperature increases, the Sandankwa viburnum will exhibit faster growth. It is worth noting that species naturally found in warmer climates have higher optimal temperatures compared to those thriving in cooler environments. Exposing Sandankwa viburnum seeds to cool temperatures can lead to inconsistencies and delays in growth. During the flowering phase, you may consider lowering the temperature, but it should not be altered during other stages. Cooler night temperatures also result in reduced water requirements, so it is necessary to adjust irrigation accordingly.
How do I keep Sandankwa viburnum warm during cold seasons?
To help the Sandankwa viburnum adapt to colder temperatures, stop fertilizing the plant to prevent new growth and let the existing ones become more resilient. In order to provide extra protection from the cold, you can create structures like cages or trellises around the plant. Another option is to use heat mats to gently warm the soil, as they can maintain an optimal temperature range specifically suitable for the Sandankwa viburnum.
How can I protect Sandankwa viburnum from getting damaged by the temperature?
To protect the Sandankwa viburnum from frost in winter, use cloths, tarps, burlaps, sheets, or plastic buckets as covers. Keep them secured so they act as insulators and aren't blown away by the wind. Avoid letting the plastic sheets or burlap covers touch the fruit or foliage, as cold temperatures can transfer and cause burns. When daytime temperatures increase, remember to remove the covers.
Do I need to change the temperature for Sandankwa viburnum in different seasons?
When growing the Sandankwa viburnum in spring, it's important to increase humidity because the air temperature is usually cooler during this time. Dry temperatures can be stressful for many plants, so increasing humidity can be beneficial. In the summer, the large greenhouse cover and warm temperatures will naturally result in higher humidity levels. However, this can also cause issues like condensation on the walls of the greenhouse, which can affect pollination and lead to infections when the water drips on the leaves. It's important to adjust humidity levels based on temperature and consider spraying the plants on hotter days to maintain optimal conditions.
💨 Humidity
🪴 Soil 6-6
🌱 Fertilizer
Applying fertilizer at the right time is essential for Sandankwa viburnum. Begin fertilizing in early spring and continue every month through early summer. Fertilizer promotes attractive blooms and supplies energy both during dormancy and in periods of active growth.
Why is it necessary to put fertilizer on my Sandankwa viburnum plant?
Fertilizing your Sandankwa viburnum is important for several reasons. Firstly, it helps the plant produce beautiful blooms. It is especially effective to fertilize in early spring to ensure excellent flowers during that season. Additionally, fertilizer provides the plant with the energy it needs during dormant growth phases. By giving your Sandankwa viburnum extra nutrients in the fall or late spring, it will have more energy stored for active growth.
When should I fertilize my Sandankwa viburnum plant?
To effectively fertilize Sandankwa viburnum, timing is crucial. It's important to avoid fertilizing too early while the plant is still dormant as this can result in ineffective use of the fertilizer, causing it to be washed away by rainwater. To ensure optimal growth, the first application of fertilizer should be made in the early spring, followed by monthly fertilization until early summer.
When is it not a good time to add fertilizer to my Sandankwa viburnum?
To ensure optimal growth and blooming of the Sandankwa viburnum, it is important to be mindful of the following fertilizer guidelines. Firstly, avoid using a fertilizer with high nitrogen content, as this can result in excessive leaf development but fewer blooms. Instead, select a fertilizer that contains lower levels of nitrogen compared to other nutrients. Additionally, refrain from fertilizing the plant after early autumn, as this can promote excessive growth just before the winter season. Moreover, it is advisable to avoid fertilizing the Sandankwa viburnum during hot and dry periods, as dry soil is less effective at delivering nutrients compared to moist soil. Fertilization during this time may also stimulate growth, which requires more water that may not be readily available. Ideally, fertilize the plant during cooler temperatures earlier in the season. Lastly, be aware that the Sandankwa viburnum can absorb fertilizer applied to nearby plants or lawns, so take care to avoid inadvertently providing the tree with an excessive dose of fertilizer.
What kind of plant food does my Sandankwa viburnum need?
For optimal growth, a Sandankwa viburnum benefits from a fertilizer that contains a balanced mix of the three main plant nutrients, with slightly higher levels of phosphorus. Alternatively, some gardeners prefer to enhance the soil for their Sandankwa viburnum by incorporating organic materials like compost, worm castings, and manure. Experienced gardeners may choose to supplement with water-soluble fertilizers that have phosphorus, 1-2 times when flower buds appear. This promotes better flower development, resulting in larger and longer-lasting blooms. Fertilizers come in various forms, and most types are suitable for Sandankwa viburnum. However, liquid or powdered fertilizers are often considered the best options. No matter which type you choose, make sure to dilute the fertilizer and apply it while watering the Sandankwa viburnum.
How do I feed my Sandankwa viburnum?
To properly fertilize your Sandankwa viburnum, always follow the directions for the specific fertilizer you are using and take the time to research how to apply it correctly. It is crucial not to over-fertilize, so determining the right amount is important. A general guideline is to consider the tree's age or trunk diameter. Estimate about one-tenth of a pound of fertilizer per year or per inch of trunk, with a maximum of one pound. Granular or organic fertilizers like blood meal can be applied by sprinkling them around the base of the tree, extending to the drip line. Make sure to avoid contact with the trunk. As the granules break down, they filter into the soil and are absorbed by the roots. Once fertilized, spread a one-inch layer of compost around the base of the tree and water thoroughly.
🪴 Pot & Repot Every 12 months
✂️ Pruning
Pruning your Sandankwa viburnum each year after it blooms in late spring will help it thrive. This annual practice encourages growth, shapes the plant, and improves air circulation. Be sure to carefully remove any dead or crowded branches to prevent damage, promote healthy regrowth, and reduce the risk of disease.
🌿 Propagating
🐛 Diseases & pets
☠️ Toxicity
Characteristics
- Plant Type
- Shrub
- Life Cycle
- Perennial
- Genus
- Viburnum
- Family
- Viburnaceae
- Hardiness Zone
- 8-10
- Mature Height
- 1.22 m to 1.83 m
- Mature Spread
- 1.83 m to 3.05 m
- Leaf Color
- Green
- Leaf Type
- Evergreen
- Flower Color
- White, Pink
- Flower Size
- 2.54 cm
- Bloom Time
- Late winter, Early spring, Mid spring
- Planting Time
- Spring, Autumn
- Harvest Time
- Late spring, Early summer, Mid summer
- Native Area
- Japan