African daisies can die due to a lack of water, a lack of nutrients particularly nitrogen, pest attack or poor soil. Potted African daisies can bounce back to life if they are repotted into premium potting soil and watered well. African daisies in the ground will benefit from liquid fertilizer, watering and top dressing with compost.
This article will explore the top reasons why African daisies die and what you can do to save them.
One of the most common reasons African daisies die is inadequate watering. Overwatering or underwatering can both cause stress to the plant, leading to root rot or wilting. In addition, poor soil conditions, incorrect sunlight exposure, pest infestations, disease and fungus, environmental stress, improper fertilization, plant age and lifecycle, seasonal changes, and cultivation errors can all contribute to the death of your African daisies.
By understanding these problems, you can take steps to prevent them and keep your flowers healthy.
Top 5 reasons why African daisies die
Here are my top reasons why African daisies or Osteospermum will die and what to do to solve each problem.
1. Lack of water
The top reason why African daisies can die quickly is due to a lack of water. African daisies are drought hardy but this is only true once they are established. If a new plant lacks water it can quickly wilt and die.
A long summer without added water can also cause an African daisy to die. I used to live in an incredibly dry area of Australia which meant I had to water my African daisies every 3 days in summer.
These daisies are originally from Africa and one of the hardiest daisies you can find. Lack of water can still cause problems and they can dry out to a point where they wilt and die.
The solution to this problem is to check the soil each week and water the daisy when the soil is dry 2 inches down from the surface. Top dress the daisies with compost and cover the soil with bark mulch. Adding organic matter will help to hold water in the soil for longer and prevent them from drying out.
African daisies, like any other plant, require water to survive. Overwatering or underwatering can lead to a variety of problems that can cause the plant to wilt, yellow, or even die.
Underwatering can cause the plant to wilt, yellow, and eventually die. Signs of underwatering include dry soil, shriveled leaves, and slow growth. To avoid underwatering, make sure to water the plant regularly, especially during hot and dry weather conditions.
To avoid both overwatering and underwatering, it is important to monitor the moisture level of the soil regularly. Water the plant when the top inch of soil feels dry to the touch. In addition, make sure to use a well-draining soil mix and avoid letting the plant sit in standing water.
By providing adequate watering, you can ensure that your African daisies thrive and produce beautiful blooms.
2. Overwatering
Overwatering can cause the roots of African daisies to rot, leading to poor growth and eventual death. Signs of overwatering include yellowing leaves, wilting, and root rot. To avoid overwatering, make sure that the soil is well-draining and that the plant is not sitting in standing water.
Take care when watering to avoid getting water directly onto the leaves. Aim to water at the base of the plant. This will help to avoid fugal diseases on the leaves and stems.
3. Lack of nitrogen
A lack of nutrients, particularly nitrogen can cause African daisies to wilt and eventually die. Nitrogen is essential for leaf and flower growth and supports the plant to make its own food and grow rapidly.
A lack of nitrogen or other essential nutrients can eventually lead to plant death. The easy way to solve this problem and add a range of nutrients is to add a broad-spectrum fertilizer. Slow release fertilizers like pelleted chicken manure or a general slow release outdoor plant fertilizer will deliver a range of nutrients to boost growth.
Pelleted chicken manure delivers nitrogen, calcium and magnesium and will help to increase the organic matter in the soil.
4. Aphids and Mites
Aphids and mites are common pests that can attack African daisies. These tiny insects feed on the sap of the plant, causing the leaves to curl and yellow. They can also transmit diseases from plant to plant.
To prevent aphids and mites, you can spray your African daisies with a mixture of water and dish soap. You can also introduce natural predators like ladybugs and lacewings to your garden.
5. Snails and Slugs
Snails and slugs are another common pest that can attack African daisies. They feed on the leaves and flowers of the plant, leaving behind large holes.
To prevent snails and slugs, you can create a barrier around your African daisies using copper tape or diatomaceous earth. You can also handpick them off the plant and dispose of them. If the infestation is severe, you may need to use a slug and snail bait.
By taking steps to prevent pest infestations, you can help keep your African daisies healthy and thriving.
4. Poor soil
Poor soil can cause African daisies to die quickly. Old, dense potting soil, sandy ground soil or heavy clay can all cause plant death. Each of these can make it difficult for the plant to get the nutrients it needs, clay soil can constrict root growth and sand can dry out quickly. African daisies do not like to have their roots stuck in moist soil, this can cause root damage and their leaves can start to die back.
The best way to grow a healthy African daisy is to plant it in well-drained soil like good quality potting soil or to add aged cow manure and compost in the ground. This will improve any ground soil to improve drainage, water holding capacity and add nutrients.
If your African daisies are not growing well, it could be due to poor soil conditions. Here are two common soil-related problems that can cause your African daisies to wilt and die.
5. Drainage Problems
African daisies require well-draining soil to thrive. If the soil is too heavy or compacted, it can cause water to accumulate around the roots, leading to root rot and other fungal diseases. To avoid drainage problems, make sure that the soil is loose and aerated.
You can improve soil drainage by adding organic matter such as compost or peat moss. Additionally, avoid planting African daisies in low-lying areas where water tends to accumulate.
6. Nutrient Deficiencies
African daisies require certain nutrients to grow and thrive. If the soil is lacking in these nutrients, it can cause the plants to become weak and susceptible to disease. Common nutrient deficiencies in African daisies include nitrogen, phosphorus, and potassium.
To avoid nutrient deficiencies, make sure that the soil is rich in organic matter and use a balanced fertilizer that contains these nutrients. Additionally, avoid over-fertilizing, as this can lead to salt buildup in the soil, which can harm the plants.
7. Lack of light
African daisies are sun loving plants and if they are grown in full shade they can struggle. While they can survive partial shade, they will certainly thrive in a bright sunny area.
For daisies planted in pots, move them into the sun, particularly in spring and summer to encourage a beautiful display of flowers.
Daisies grown in shade can struggle to photosynthesize and grow new stems and leaves for a strong healthy plant.
Not enough light can also be a problem for African daisies. If your plant is not receiving enough light, it can become leggy and weak, making it more susceptible to disease and pests. If the plant is placed in a location where it receives less than 4 hours of direct sunlight, it can suffer from poor growth, yellowing leaves, and stunted growth.
To solve this problem, you should consider moving the plant to a location where it receives more direct sunlight. Alternatively, you can use artificial lighting to provide the plant with the necessary light it needs to grow and thrive. Ensure that the light source is placed close to the plant and switched on for at least 6 hours a day to provide the necessary light.
8. Too Much Sun
African daisies require plenty of sunlight to grow and thrive. However, too much direct sunlight and extreme heat can cause the plant to wilt and die. If your African daisy is placed in an area where it receives more than 6 hours of direct sunlight, it can suffer from sunburn and heat stress. This can lead to the plant becoming dehydrated and unable to absorb water and nutrients from the soil.
To avoid this problem, you should consider moving the plant to a location where it receives some shade during the hottest part of the day. Alternatively, you can use a shade cloth to protect the plant from direct sunlight. This will help to prevent sunburn and heat stress, and allow the plant to grow and thrive.
9. Root Rot
Root rot is a common problem that affects African daisies. It is caused by overwatering or poor drainage, which leads to the roots becoming waterlogged and eventually rotting. The symptoms of root rot include yellowing leaves, wilting, and stunted growth.
To prevent root rot, make sure to plant your African daisies in well-draining soil and avoid overwatering. If you notice any signs of root rot, remove the affected plant and replant in fresh soil.
10. Powdery Mildew
Powdery mildew is a fungal disease that affects many plants, including African daisies. It is characterized by a white, powdery coating on the leaves and stems. Powdery mildew can be caused by high humidity, poor air circulation, or overcrowding.
To prevent powdery mildew, make sure to plant your African daisies in an area with good air circulation and plenty of sunlight. If you notice any signs of powdery mildew, remove the affected leaves and treat with a fungicide.
11. Temperature Extremes
African daisies are sensitive to temperature extremes. When exposed to high temperatures, the plant may wilt, and the leaves may turn yellow or brown. On the other hand, exposure to low temperatures can cause the plant to become stunted, and the leaves may turn purple or black.
To prevent temperature stress, you should plant African daisies in an area with moderate temperatures. You can also provide shade during the hottest parts of the day or cover the plant during cold nights.
12. Wind Damage
African daisies are also susceptible to wind damage. Strong winds can break the stems or uproot the plant. Wind can also cause the plant to lose moisture rapidly, leading to wilting.
To prevent wind damage, you should plant African daisies in a sheltered area or provide support, such as stakes or trellises. You can also use a windbreak, such as a fence or a hedge, to protect the plant from strong winds.
By taking measures to prevent environmental stress, you can ensure that your African daisies remain healthy and vibrant.
13. Excess Fertilizer
Over-fertilization can cause the African daisy to die. Using too much fertilizer can lead to salt buildup in the soil, which can harm the plant’s roots. Additionally, excess fertilizer can cause the leaves to turn yellow or brown, which is a sign of fertilizer burn.
To avoid over-fertilization, use a balanced fertilizer with an N-P-K ratio of 10-10-10. Apply the fertilizer once a month during the growing season. Be sure to follow the instructions on the fertilizer package and do not exceed the recommended amount.
14. Lack of Fertilizer
On the other hand, a lack of fertilizer can also cause African daisies to die. Without proper nutrients, the plant will not grow properly and may become weak and susceptible to disease.
To ensure that your African daisy is getting enough nutrients, use a slow release fertilizer when planting. This will provide the plant with a steady supply of nutrients over time. Additionally, you can use a liquid fertilizer every two weeks during the growing season to supplement the slow-release fertilizer.
In conclusion, proper fertilization is crucial for the health and survival of African daisies. Avoid over-fertilization and use a balanced fertilizer with an N-P-K ratio of 10-10-10. Additionally, use a slow-release fertilizer when planting and supplement with a liquid fertilizer during the growing season to ensure that your African daisy is getting enough nutrients.
13. Plant Age and Lifecycle
African daisies are annual plants that typically live for one growing season and then die. However, they can sometimes survive for a few years in warmer climates. The lifespan of African daisies can be extended by deadheading spent blooms and providing optimal growing conditions.
As African daisies age, they may become more susceptible to diseases and pest infestations. It is important to monitor the health of your plants regularly and take action at the first sign of trouble.
To ensure a healthy lifecycle for your African daisies, it is important to provide them with the right growing conditions. This includes:
- Full sun: African daisies require at least 6 hours of direct sunlight per day.
- Well-draining soil: These plants prefer soil that is moist but not waterlogged.
- Regular watering: African daisies need to be watered regularly, especially during hot, dry weather.
- Fertilization: Use a balanced fertilizer to promote healthy growth and blooming.
By providing your African daisies with the right growing conditions and monitoring their health regularly, you can help ensure a long and healthy lifecycle for these beautiful plants.
14. Seasonal Changes
African daisies are native to South Africa and are well adapted to warm, sunny conditions. They thrive in hot summer weather and can tolerate drought conditions. However, they are not cold-hardy and will die if exposed to frost or freezing temperatures. If you are planting new African daisies, wait until the last frost in spring before you plant them out. This will help to protect young plants from frost damage.
In areas with cold winters, African daisies can be grown as annuals or potted plants that are brought indoors during the winter months. If you live in a region with mild winters, you can grow African daisies as perennials, but they may still need some protection during cold weather. New growth in particular will be sensitive to frosts so keep young plants protected.
During the fall and winter months, African daisies may become dormant and stop growing, which is a natural response to the changing seasons. They may also drop their leaves and appear to be dead, but they are likely just conserving energy until the weather warms up again.
To help your African daisies survive seasonal changes, make sure they are planted in well-draining soil and watered regularly during the growing season. Avoid overwatering or letting the soil become waterlogged, as this can cause root rot and other problems.
If you live in an area with cold winters, you can protect your African daisies by covering them with a layer of mulch or straw to insulate the soil and prevent frost damage. You can also cover them with frost cloth or burlap to protect them from freezing temperatures.
In summary, African daisies are well adapted to warm, sunny conditions and may become dormant during the fall and winter months. To help them survive seasonal changes, make sure they are planted in well-draining soil, watered regularly, and protected from frost and freezing temperatures if necessary.
15. Improper Pruning
Pruning is an essential part of caring for African daisies. However, improper pruning can cause the plants to die. One common mistake is pruning too much or too often. This can lead to stress on the plant and reduce its ability to grow and produce flowers. Removing too many green leaves or branches can stop the plant from photosynthesising. It can become woody and can die back completely.
To avoid this, you should only prune dead or damaged stems and leaves. You should also avoid pruning during the flowering season. It is beast to remove dead flowers as often as possible. This will encourage the plant to grow new more flowers over the summer season. Leaving some leaf growth on during winter can help to protect the plant.
For the best results give your African daisies a light trim at the end of flowering. Remove only 1-2 inches of stem growth in spring and late summer. Allow the plant to keep its leaves over fall and winter.
16. Transplant Shock
Transplanting African daisies can be stressful for them, and if not done correctly, it can cause them to die. One common mistake is transplanting them during the wrong season. African daisies should be transplanted during early spring or early fall when the weather is mild. Another mistake is not preparing the soil before transplanting. The soil should be well-draining and rich in nutrients.
You should also avoid transplanting them too deep or too shallow. The crown of the plant should be level with the soil surface.
By avoiding these cultivation errors, you can ensure that your African daisies thrive and produce beautiful flowers.
How to prevent your African daisies from dying
Here are my top 3 tips for preventing your African daisies from dying.
1. Water
Water your African daisies over summer if the weather is dry. Reduce the chance of allowing your daisies to dry out by adding a 2-3 inch layer of bark mulch.
2. Check for overwatering
For African daisies that are wilting due to overwatering slow down the water you are adding. Add bark mulch to absorb extra rain. Bark will absorb rain water and slowly release it to the plant over time.
3. Check the soil and repot
For potted African daisies, repot them every 2 years and refresh the soil. This will add nutrients, add air and your daisies will be happy.
What to do if your African daisies wilt
Wilting is the first sign that your African daisy is unhappy and you should act fast to prevent plant death. After a hot day, African daisy leaves can wilt due to the warm weather.
This is easily solved by watering the plant at the end of the day. You can proactively prevent this by watering in the morning to wet the soil.
Wilting can also be caused by the opposite problem of too much water. You can usually tell that this is the cause because leaf tips can turn black and the soil will be wet when you touch it.
Slow down your watering schedule if this is the case and add bark mulch to absorb the extra water from rain.
Summary
African daisies can die due to a lack of water, too much water, pest attack or a lack of nutrients. Work out if water is the problem and check the soil to see if it is too wet or dry. The solution to all of these is really to make sure the soil is moist but not wet, add some all-purpose fertilizer and mulch the plant.
African daisies are forgiving so trim off any leaves or stems that are damaged and no one will know!
Your plant will bounce back soon, so be patient and happy growing.
Frequently Asked Questions
What are the common signs of overwatering in Osteospermum plants?
Overwatering is a common problem that can cause African daisies to wilt and eventually die. Signs of overwatering include yellowing leaves, root rot, and a foul odor coming from the soil. To avoid this problem, make sure to only water the plant when the soil is dry to the touch.
How can improper soil conditions lead to the death of African daisies?
Improper soil conditions can lead to a lack of nutrients, particularly nitrogen, which is essential for leaf and flower growth. This can cause African daisies to wilt and eventually die. To ensure proper soil conditions, make sure to use a well-draining soil mix and fertilize the plant regularly.
What pests are known to affect Osteospermum?
Several pests can adversely affect the health of Osteospermum plants, including aphids, spider mites, and thrips. These pests can cause stunted growth, yellowing leaves, and wilting. To prevent pest infestations, make sure to keep the plant healthy and free of debris, and use insecticidal soap or neem oil if necessary.
Can extreme temperatures cause African daisies to wilt or die?
Yes, extreme temperatures can cause African daisies to wilt or die. These plants prefer moderate temperatures between 60-75°F (15-24°C). High temperatures above 85°F (29°C) can cause the plant to wilt, while frost or freezing temperatures can kill the plant.
How does inadequate sunlight exposure impact Osteospermum?
Inadequate sunlight exposure can cause Osteospermum plants to become leggy and weak, with fewer flowers. These plants require full sun for optimal growth and flowering. If grown indoors, make sure to place the plant near a bright window or under grow lights.
What are the key steps to properly care for an Osteospermum in a pot?
To properly care for an Osteospermum in a pot, make sure to use a well-draining soil mix and fertilize the plant regularly. Water the plant only when the soil is dry to the touch, and make sure the pot has good drainage. Place the pot in a sunny location and rotate it every few days to ensure even growth.
What do I do if African daisies wilt?
Wilting is the first sign that your African daisy is unhappy and you should act fast to prevent plant death. After a hot day, African daisy leaves can wilt due to the warm weather.
This is easily solved by watering the plant at the end of the day. You can proactively prevent this by watering in the morning to wet the soil.
Wilting can also be caused by the opposite problem of too much water. You can usually tell that this is the cause because leaf tips can turn black and the soil will be wet when you touch it.
Slow down your watering schedule if this is the case and add bark mulch to absorb the extra water from rain.
I am an accredited practicing dietitian, experienced gardener and a dedicated cook. I love writing and sharing my experience so you can learn from my successes and mistakes.