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Tosa spirea
Tosa spirea
Tosa spirea
Spiraea nipponica
Hardiness Zones
Hardiness Zones
3 to 8
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Key Facts About Tosa spirea

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Attributes of Tosa spirea

Lifespan
Perennial
Plant Type
Shrub
Plant Height
2.5 m
Spread
2.5 m
Leaf Color
Green
Flower Color
White
Dormancy
Winter dormancy
Leaf type
Deciduous
Ideal Temperature
0 - 32 ℃

Scientific Classification of Tosa spirea

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distribution

Distribution of Tosa spirea

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Distribution Map of Tosa spirea

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Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
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Questions About Tosa spirea

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Watering Watering Watering
Sunlight Sunlight Sunlight
Temperature Temperature Temperature
What's the best method to water my Tosa spirea?
You might want to put a garden hose at the plant base to ensure that you're promoting excellent root development. Avoid directly spraying the leaves, and know that the leaves will require more watering if they are outdoors and facing direct sunlight. You can also use bubblers that you can put on to each plant to moisten the roots. Also, use soaker hoses that can cover the entire garden or bed when adding or removing plants to push the roots deeply. Drain any excess water and wait for the soil to dry before watering. Water at ground level to prevent diseases. On a sunny day, you might want to spray the entire bush with water. Whether potted or in-ground, please remember Tosa spirea prefers deep watering over light sprinkling.
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What should I do if I water Tosa spirea too much/too little?
An overwatered Tosa spirea can start to have leaves that turn yellow, drop off and wilt. The plant can also look dull and unhealthy, with signs of mushy stems. When they are beginning to show these signs, it's best to adjust your schedule whenever possible. The wilting can also be a sign of under watering as well. You might see that the leaves begin to turn crispy and dry while the overwatered ones will have soft wilted leaves. Check the soil when it is dry and watering is not enough, give it a full watering in time. Enough water will make the Tosa spirea recover again, but the plant will still appear dry and yellow leaves after a few days due to the damaged root system. Once it return to normal, the leave yellowing will stop . Always check the moisture levels at the pot when you have the Tosa spirea indoors. Avoid overwatering indoors and see if there are signs of black spots. If these are present, let the soil dry in the pot by giving it a few days of rest from watering. Overwatering can lead to root rot being present in your plant. If this is the case, you might want to transfer them into a different pot, especially if you see discolored and slimy roots. Always prevent root rot as much as possible, and don't let the soil become too soggy. You should dig a little deeper when you plant your Tosa spirea outdoors. When you check with your fingers and notice that the soil is too dry, it could mean underwatering. Adequate watering is required to help the plant recover.
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How often should I water my Tosa spirea?
The Tosa spirea likes deep and infrequent watering. You would want to soak them in a gallon of water each time, especially when they are planted in pots. The water storage of flower pots is limited and the soil will dry out faster. Watering is required every 3 to 5 days when living in a cold region. Water it early in the morning when the soil is dry, outdoors or indoors. You can also determine if watering is needed by checking the soil inside. When the top 2-3 inches of soil is dry, it is time to give the plant a full watering. During hot days, you may need to check the moisture daily, as the heat can quickly dry out the soil in the pot. Irrigation of the soil is also required if you have a garden. When you live in a hot climate, you might want to water once a week. Only water when you notice that about 2 to 3 inches of soil become too dry outdoors or indoors. Consider the amount of rainwater on the plant and ensure not to add to it to prevent root rot.You may not need additional watering of the plants if there is a lot of rainfall.Tosa spirea generally grows during spring and fall. When they are outdoors, you need to add mulch about 3 to 4 inches deep to conserve more water. You need to water the plants more frequently in sandy soil because this type tends to drain faster. However, with the clay one, you need to water this less frequently where you could go for 2-3 days to dry the plant and not develop any root rot. You could mark the date on the calendar whenever you water and when you notice that the leaves are starting to droop. This can mean that you might be a day late.
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How much water do I need to give my Tosa spirea?
The Tosa spirea generally needs about a gallon of water each schedule,With the potted plants, you might want to water them deeply until you see that the water is dripping at the bottom of the pot. Then, wait for the soil to dry before watering them again. You can use a water calculator or a moisture meter to determine the amount you've given to your plant in a week. Provide plenty of water, especially in the flowering period, but let the moisture evaporate afterwards to prevent root rot. If Tosa spirea is planted outdoor with adequate rainfall, it may not need additional watering. When Tosa spirea is young or newly planted, make sure it gets 1-2 inches of rain per week. As Tosa spirea continues to grow, it can survive entirely on rainfall. Only when the weather is too hot, or when there is no rainfall at all for 2-3 weeks, then consider giving Tosa spirea a full watering during the cooler moment of the day to prevent the plant from suffering from high heat damage. Additional watering will be required during persistent dry spells.
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Should I adjust the watering frequency for my Tosa spirea according to different seasons or climates?
The Tosa spirea needs outdoors come from rain, with only persistent dry weather requiring watering. Throughout the spring and fall growing seasons, the soil needs to be kept moist but not soggy, and alternating dry and moist soil conditions will allow the Tosa spirea to grow well. Throughout the summer, hot weather can cause water to evaporate too quickly, and if there is a lack of rainfall, you will need to water more frequently and extra to keep it moist. Usually, the Tosa spirea will need less water during the winter. Since the Tosa spirea will drop their leaves and go dormant, you can put them into a well-draining but moisture-retentive soil mixture like the terracotta to help the water evaporate quicker. Once your Tosa spirea growing outdoors begins to leaf out and go dormant, you can skip watering altogether and in most cases Tosa spirea can rely on the fall and winter rains to survive the entire dormant period. After the spring, you can cultivate your Tosa spirea and encourage it to grow and bloom when the temperature becomes warmer.This plant is not generally a fan of ponding or drought when flowering. You must ensure that the drainage is good at all times, especially during the winter. When the plant is in a pot, the plant has limited root growth. Keep them well-watered, especially if they are planted in pots during summer. They don't like cold and wet roots, so provide adequate drainage, especially if they are still growing. It's always best to water your Tosa spirea’s diligently. Get the entire root system into a deep soak at least once or twice a week, depending on the weather. It's best to avoid shallow sprinkles that reach the leaves since they generally encourage the growth of fungi and don't reach deep into the roots. Don't allow the Tosa spirea’s to dry out completely in the fall or winter, even if they are already dormancy. Don't drown the plants because they generally don't like sitting in water for too long. They can die during winter if the soil does not drain well. Also, apply mulch whenever possible to reduce stress, conserve water, and encourage healthy blooms.
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What should I be careful with when I water my Tosa spirea in different seasons, climates, or during different growing periods?
If planting in the ground, Tosa spirea mostly relies on rain. However, if there is no rainfall for 2-3 weeks, you may need to give proper consideration to giving the plants a deep watering. If watering Tosa spirea in summer, you should try to do it in the morning. A large temperature difference between the water temperature and the root system can stress the roots. You need to avoid watering the bushes when it's too hot outside. Start mulching them during the spring when the ground is not too cold. The age of the plants matter. Lack of water is one of the most common reasons the newly planted ones fail to grow. After they are established, you need to ease off the watering schedule. Reduce watering them during the fall and winter, especially if they have a water-retaining material in the soil. The dry winds in winter can dry them out, and the newly planted ones can be at risk of drought during windy winter, summer, and fall. Windy seasons mean that there's more watering required. The ones planted in the pot tend to dry out faster, so they need more watering. Once you see that they bloom less, the leaves begin to dry up. Potted plants are relatively complex to water and fluctuate in frequency. Always be careful that the pot-planted plant don't sit in the water. Avoid putting them in containers with saucers, bowls, and trays. Too much watering in the fall can make the foliage look mottled or yellowish. It's always a good idea to prevent overwatering them regardless of the current climate or season that you might have. During the months when Tosa spirea begins to flower, you might want to increase the watering frequency but give it a rest once they are fully grown. Give them an adequate amount of water once every 3 to 5 days but don't give them regular schedules. Make sure the soil is dry by sticking your finger in the pot, or use a moisture meter if you're unsure if it's the right time. Too much root rot can cause them to die, so be careful not to overwater or underwater regardless of the climate or season you have in your area.
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Why is watering my Tosa spirea important?
Watering the Tosa spirea helps transport the needed nutrients from the soil to the rest of the plant. The moisture will keep this species healthy if you know how much water to give. The watering requirements will depend on the weather in your area and the plant's soil. The Tosa spirea thrives on moist soil, but they can't generally tolerate waterlogging. Ensure to provide enough mulch when planted on the ground and never fall into the trap of watering too little. They enjoy a full can of watering where the water should be moist at the base when they are planted in a pot to get the best blooms. If they are grown as foliage, you need to water them up to a depth of 10 to 20 inches so they will continue to grow. If it's raining, refrain from watering and let them get the nutrients they need from the rainwater.
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Distribution
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Tosa spirea
Tosa spirea
Tosa spirea
Spiraea nipponica
Hardiness Zones
Hardiness Zones
3 to 8
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plant_info

Key Facts About Tosa spirea

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Feedback
feedback

Attributes of Tosa spirea

Lifespan
Perennial
Plant Type
Shrub
Plant Height
2.5 m
Spread
2.5 m
Leaf Color
Green
Flower Color
White
Dormancy
Winter dormancy
Leaf type
Deciduous
Ideal Temperature
0 - 32 ℃
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Scientific Classification of Tosa spirea

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distribution

Distribution of Tosa spirea

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Feedback
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Distribution Map of Tosa spirea

distribution map
Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
question

Questions About Tosa spirea

feedback
Feedback
feedback
Watering Watering Watering
Sunlight Sunlight Sunlight
Temperature Temperature Temperature
What's the best method to water my Tosa spirea?
more
What should I do if I water Tosa spirea too much/too little?
more
How often should I water my Tosa spirea?
more
How much water do I need to give my Tosa spirea?
more
Should I adjust the watering frequency for my Tosa spirea according to different seasons or climates?
more
What should I be careful with when I water my Tosa spirea in different seasons, climates, or during different growing periods?
more
Why is watering my Tosa spirea important?
more
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Your Ultimate Guide to Plants
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17,000 local species +400,000 global species studied
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Nearly 5 years of research
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80+ scholars in botany and gardening
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