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Cape Primrose Flower Falling Off – Reasons & Solutions

We all enjoy seeing the Cape Primrose flowers blossom, but what can you do when they start to fall off?

Flowers that appear to be healthy and prospering fall off the plant suddenly or gradually. This is a very frustrating scenario for any gardener, and it may often leave them feeling helpless.

There is, however, a remedy, just as there is for other gardening challenges!

Cape Primrose flowers fall off naturally, but if they are falling off frequently, the plants may be getting an unbalanced amount of water, or they have been exposed to dramatic temperature changes.

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Cape Primrose
Cape Primrose (Source: Pexels)

If you wish to protect your flowers from blossom drop, keep reading to learn how.

Is it Normal for Cape Primrose Flowers to Fall off?

When blossoms die off towards the conclusion of a bloom period, it’s natural for petals to fall off your plant.

It could mean that your plant has just finished its normal bloom cycle and is losing its flower in preparation for the impending hibernation period.

Cape Primrose flowers throughout the spring, summer, and autumn. They will stop flowering and may lose some leaves in the winter, which is normal.

Some types bloom periodically throughout the season, while others bloom only when they receive sufficient winter and spring rains.

However, if your flower is losing petals frequently before or shortly after blooming, this could suggest a problem.

Pests, weather, overwatering, underwatering, a lack of sunlight, or too much sun, as well as other diseases, could all cause petals to fall off.

Interested in growing a Cape Primrose plant for your living room? Learn how to grow Cape Primrose.

Reasons and Solutions for Cape Primrose Flowers Falling Off

Temperature, humidity, pests, and various other factors influence when these plants’ flowers fall off. We’ll furthermore go over those things to comprehend the plant’s various requirements.

For your convenience, below is a summarized table of the reasons, solutions, and preventive measures for Cape Primrose flowers falling off.

Reasons SolutionsPreventive Measures
Watering HabitsWater twice a week in summer.
Water once every 10 days in winter.
Lifting the pots, feeling the weight, looking at the soil medium, and knowing when to water your plants.
Low Humidity
Keep the plant at a humidity level of 50% - 60%.Avoid drafts by misting the leaves with room-temperature water or setting the pot on a tray of moist stones.
Light and Location ChangeIn winter, a south or west-facing window is best.
In summer, a north or east-facing window would be ideal.

Place in bright, but not direct, indoor light. Also, direct morning sunshine is beneficial, but avoid it in the afternoon.
Temperature FluctuationMaintain the temperature to the range of 55°F to 70°F. Remember, temperatures beyond 90°F cause harm to the plants.Don't introduce anything new to the plant once it's adjusted to the temperature; instead, attempt to keep it constant as it requires.
Fertilizer RequirementsIn the spring and summer, fertilize with a high-quality phosphorous-heavy fertilizer twice a month.Avoid fertilizing during the winter months when your plant will be dormant and relax.
Pest InfestationsUproot and kill infected plants and dispose of infested soil.Keep an eye on your plants regularly and avoid excessive sunshine and overwatering.
Soil Mixture Well-draining, humus-rich, and fertile soil with pH levels ranging from 5.6 to 6.0 (acidic) and 6.1 to 6.5 (mildly acidic).The soil should not be entirely dry at any point during the year.

1. Watering Habits

Depending on the time of year and the conditions in which the plant is kept, the amount of water given will vary.

It is crucial not to overwater Cape Primrose because they love to remain dry.

Overwatering, especially regular overwatering, harms the root system, resulting in decaying lower leaves, yellowing foliage, loss of buds and blooms, and root or crown rot.

On the other hand, underwatering can be a factor, with symptoms including quick bloom loss and dry, crispy leaves; these problems are typically caused by forgetfulness, too much sunlight, or too much heat.

Even while a dry Primrose is preferable to a wet one, never allow the soil to completely dry out because this can result in flower or leaf loss.

Allow the soil to dry out a little before watering again to ensure that all the roots are wet.

In the summer, water twice a week to avoid wetting the leaves; reduce watering in the spring and autumn; and in the winter, water once every 10 days.

Avoid getting the leaves wet because this will cause spots that will not come off.

Because the leaves are rather brittle, you must be careful when handling the plant.

2. Low Humidity

It is also possible that the low humidity is causing the petals to fall off.

Humidity has a significant impact on the plant’s lifespan. The plant will live longer if it receives the proper amount of humidity.

Cape Primrose prefers a moderately humid environment. As long as you don’t live in an arid climate, average room humidity will suffice for this plant.

It is advised that the plant be kept at a moderate humidity level of 50 to 60 percent. Natural humidity is often sufficient from late spring to early fall.

In the winter, indoor air can get exceedingly dry, so use a humidity gauge. Place the pot on a tray of moist stones or use a cool-mist room humidifier.

Keep the plant away from heat or air conditioning vents, as well as cold drafts from doors and windows.

3. Light and Location Change

Cape Primrose thrives under bright, dappled sunlight and cool temperatures.

The plant’s leaves and blossoms will burn and shrivel if it is exposed to direct sunlight. Insufficient light, on the other hand, causes the plants to produce enormously big leaves.

They must be kept in an area that is thoroughly aerated and ventilated.

Place your Cape Primrose in a location that receives some light but not direct, hot sunlight. A window with a north or west orientation is ideal.

A place that receives a sliver of morning or evening sunlight is perfect. Due to the increased risk of overwatering and crown rot, shady areas must be avoided at all costs.

4. Temperature Fluctuation

Because the temperature must be adjusted according to the season, this is the most important phase.

A drastic change in temperature causes Cape Primrose to act differently. Hence, maintaining the temperature is a must.

An ideal temperature range for Cape Primrose is between 60 degrees Fahrenheit to 70 degrees Fahrenheit.

A minimum winter temperature of 41 degrees Fahrenheit is required; an optimal summer temperature is 68 degrees Fahrenheit. If these temperatures are surpassed, ensure enough ventilation.

Note: temperatures beyond 90 degrees Fahrenheit cause the plants to wilt and the leaves to become damaged, or the plants to collapse.

Place them away from a radiator if possible. At the start of spring, the lower temperature should begin to rise again, promoting new growth.

Do not introduce anything new to your Cape Primrose once it is adjusted to the temperature. Instead, however, attempt to keep it constant as it requires.

5. Fertilizer Requirements

It is pivotal that you fertilize your Cape Primrose with caution because they are low-light-loving plants. When you apply large or regular dosages of heavy salt fertilizers, you risk causing damage.

Feed the Cape Primrose a phosphorus-rich water-soluble fertilizer. The best value of NPK fertilizer is 15-30-15. So, try to feed them what they love.

Fertilize using a liquid houseplant fertilizer diluted to half strength every three or four weeks from spring to late summer when the plants are actively growing.

During the winter months, when Cape Primroses are dormant, they do not need fertilizing. So, please do not fertilize at this time of the year.

Learn about Cape Primrose Falling Star plant.

6. Pest Infestations

It is critical to inspect your plants frequently. Make it a habit to do this daily.

This will allow you to detect any problems early on, allowing you to take precautionary measures.

Cyclamen mites and aphids can be an issue while cultivating Cape Primroses, although streptocarpus is normally pest and disease-free.

Cyclamen mites attack the youngest leaves, producing browning and growth deformation. On the other hand, aphids will eat the blossoms, but only if there is another sick plant nearby.

To avoid pests, spraying the plants with 2 TB per gal of neem oil and 4 tbsp dishwashing detergent is recommended. Several applications must be submitted, usually one week apart.

Ensure that the environment is well aired to avoid fungal infestations.

It is also good to keep any diseased plants isolated during treatment to prevent the pests from spreading to other plants.

7. Soil Mixture

Like for any other plant, a proper soil mixture is key for Cape Primrose.

Cape Primrose, or any other plant in general, will react to the type of soil they are being kept in. And they will react accordingly.

You might think they would not know the difference but you could not be more wrong.

Cape Primrose thrives on soil that is well-drained, humus-rich, and fertile. They should be kept in the same potting mix as the African Violet, and the soil should never be fully dry at any time of the year.

The soil pH should be between 5.6 and 6.0 (acidic) and 6.1 to 6.5 (mildly acidic)

It enjoys the moist, damp, acidic conditions found in woodlands and hedgerows.

A heavy, clay soil is preferred, but it can grow in a variety of soils.

Tips to Take Care of Cape Primrose

Keep in mind that each plant is unique and should be handled as such.

Cape Primrose
Cape Primrose (Source: Pexels)

Nevertheless, following the below tips to take proper care of Cape Primrose plants.

  • Do not soak Cape Primrose in water as they do not like getting soaking wet.
  • Water the plant from the bottom with tepid water. Make sure that the moisture is distributed evenly throughout the soil.
  • In the spring, repot your plants if they have become overcrowded.
  • At the end of the fall season, the ends of the leaves may turn yellow; this is natural as the plant prepares for the winter. Remove the yellow section of the item.
  • Feed Cape Primrose flowers regularly so that they are healthy and most richly bloomed.
  • Place your Cape Primrose in a location that receives some light but not direct, hot sunlight. A window with a north or west orientation is ideal.
  • If the older leaves are withering or looking shabby, they should be plucked off. Once the flowers have faded, remove the old flower stems to keep your plant looking healthy and vibrant.
  • It’s optimal if the humidity stays between 50 and 60%. From late spring through early fall, natural humidity is frequently sufficient.


The Cape Primrose is a lovely plant that flowers for a long time.

The beautiful thing about this plant is that it’s quite simple to maintain once you figure out its quirks and requirements.

I’m confident that this post has assisted you in understanding the proper requirements for the plant and seeing how it flourishes.

Don’t know a perfect gift for your plant lover friend? Learn to propagate Cape Primrose and gift it to your friend.

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