African Violets Temperature: Range, Consistency, Lowest and Highest Values

In this article, we’ll discuss the optimal temperature range, consistency, and extreme temperature values for African Violets. By understanding these factors, gardeners can create a suitable environment for these delicate plants, ensuring their long-term health and vigorous growth.

best temperature for african violets

African Violets, also known as Saintpaulia, are native to Eastern Africa and require specific temperature conditions to thrive. To achieve optimal growth and beautiful blooms, it’s crucial to understand the temperature range within which these plants flourish.

Ideal Temperature Range for African Violets:

Temperature Value
Daytime 70-75°F (21-24°C)
Nighttime 60-70°F (16-21°C)

Maintaining a stable temperature within this range is key to ensuring the health of your African Violet plants. Temperature fluctuations lead to dropping of buds and leaves, affecting their growth and appearance. When you find the right balance, you’ll notice vibrant colors and regular flowering.

During the day, African Violets thrive between 70 and 75°F (21-24°C). Be cautious of temperatures above 75°F (24°C) as excessive heat may cause the leaves to scorch.

At night, lower temperatures are well-tolerated by these plants. 60-70°F (16-21°C) is encouraged to allow the plant to rest and regulate its water uptake. Occasional drops below 60°F (16°C) won’t cause severe damage, but extended exposure to these low temperatures may stunt the growth and flowering.

It’s essential to monitor the temperature near your African Violets, especially if you’re using artificial heating or cooling methods. To aid in this process, consider using a thermometer placed near the plant, ensuring that you can maintain a consistent temperature throughout the day and night.

Regularly assessing the temperatures in your growing space is a proactive way to maintain the healthy growth and appearance of your African Violets. By paying close attention to the fluctuation of temperatures, you’ll be better equipped to create a nurturing environment for your plants.

What is the Ideal Temperature Range for African Violets?

The ideal temperature range for African Violets is similar to the comfortable range experienced by humans. These plants enjoy a daytime temperature between 70-75°F (21-24°C) and a nighttime temperature between 60-70°F (16-21°C).

By maintaining a consistent temperature within this range, you’ll provide the perfect environment for your African Violets to thrive and bloom consistently.

To achieve this range, place your plants in an area of your home where temperatures are stable throughout the day. Avoid placing them near drafty windows, vents, or areas exposed to direct sunlight, as these may cause extreme fluctuations.

If the temperature in your home varies too much from these optimal levels, you can make simple adjustments to maintain the necessary range for your African Violets. For instance, using a space heater or a fan can help regulate the temperature in the room or around the plants.

A crucial aspect of temperature management in African Violets is avoiding drastic temperature fluctuations. A gradual change between daytime and nighttime temperatures is best for your plants, as sudden shifts often induce stress on the plant, leading to various issues, such as leaf drop, bud loss, or stunted growth.

Remember that each plant variety may have slightly different requirements. Take the time to become familiar with your specific African Violet type and adjust the growing conditions accordingly.

Maintaining an ideal temperature range for your African Violets, with minimal fluctuations, will help ensure healthy growth and beautiful blooms. Approach this aspect of African Violet’s care with diligence, and you’ll be rewarded with vibrant and thriving plants.

What are the Benefits of Stable and Consistent Temperature for African Violets?

Stable and consistent temperature levels are highly beneficial for African Violets, as it helps maintain their overall health, promotes vibrant foliage, and encourages consistent flowering. Maintaining the right temperature range is essential, as extreme highs or lows can negatively impact the plant’s growth.

When consistent temperatures are maintained, African Violets can effectively carry out the process of photosynthesis. This process supplies the plant with the nutrients it requires to grow properly, stay robust, and produce healthy blossoms.

In addition to supporting photosynthesis, a steady temperature prevents various potential issues from arising:

  1. Bud and leaf drop: When temperatures fluctuate outside the ideal range, the stress caused by these changes can lead to the dropping of foliage and buds, affecting the plant’s appearance.
  2. Delayed flowering: If the temperature remains too low for an extended period, your African Violet may take longer to bloom or stop flowering altogether.
  3. Pests and diseases: Extreme temperature fluctuations might weaken the plant, making it more susceptible to pests and diseases.

One way to ensure your African Violets experience consistent temperatures is to provide adequate insulation around the growing area and keep them away from cold drafts or sudden heat surges, especially in winter.

Creating a consistent temperature environment for your African Violets helps ensure they remain healthy and vibrant. With proper care and attention, your plants will reward you with their lush foliage and beautiful blossoms, making them a true pleasure to grow and enjoy.

What are the Risks of Too High Temperatures on African Violets?

High temperatures can pose several risks to African Violets, as they prefer a more moderate climate. When exposed to temperatures above their preferred range, these plants may experience various issues that can lead to unhealthy growth or even death.

Below, we’ll discuss the 5 most common risks associated with too-high temperatures for African Violets.

One risk is that high temperatures increase water loss from the plant. This can cause the plant to wilt and the leaves to become dry, crispy, or curled. To counteract this, you may need to water your African Violets more frequently during hot spells.

Another risk is root damage. Prolonged exposure to high temperatures can lead to root instability, which may prevent the African Violet from taking up water and nutrients effectively. This can, in turn, affect the overall health and appearance of the plant.

High temperatures can also contribute to the growth of mold and fungi. These organisms thrive in warm, humid conditions, and may cause root rot, leaf spot, or other diseases that weaken the plant and could lead to death if left untreated.

Moreover, higher temperatures may lead to reduced flowering. African Violets may struggle to produce blossoms or might stop blooming altogether when exposed to temperatures beyond their ideal range.

Finally, heat stress can trigger increased susceptibility to pests. Stressed plants are often more attractive to pests such as aphids, mites, or mealybugs, which can further weaken an already-stressed African Violet.

To avoid these risks, monitor the room’s temperature, avoid positioning your African Violets near heat sources, and provide adequate air circulation. By keeping temperatures within the recommended range, you can help your African Violets thrive and avoid the risks associated with excessive heat.

What are the Risks of Too Low Temperatures on African Violets?

Exposing African Violets to temperatures below their ideal range can result in several adverse effects on their growth and overall health. While these plants can tolerate occasional drops in temperature, prolonged exposure to colder conditions can lead to various issues, hindering their development and beauty.

Some of the risks associated with too low temperatures on African Violets include:

  1. Stunted growth: When the temperature remains too low for a prolonged period, your African Violet’s growth may slow down or come to a stop, resulting in a weak and underdeveloped plant.
  2. Delayed or halted flowering: Cold conditions can significantly affect the plant’s blooming process, either extending the time it takes for the plant to develop flowers or stopping flowering altogether.
  3. Leaf and bud drop: Prolonged exposure to low temperatures can cause the plant to lose its leaves and buds, affecting its appearance and health.
  4. Risk of root rot: In cold conditions, the rate at which a plant absorbs water from the soil is slowed, leading to excess moisture accumulating in the soil. This can potentially result in root rot, which is detrimental to the plant’s health.
  5. Weakened immunity: Persistent low temperatures may weaken the plant’s natural defenses, making it more susceptible to diseases and pests.

To avoid these risks, ensure that your African Violets are kept in a temperature-controlled environment, protecting them from sudden drops in temperature, particularly during winter. By giving your plants the consistent temperature they need, you will support their overall well-being, encouraging healthy growth and vibrant blooms.

What is the Lowest Temperature for African Violets?

While African Violets are known to prefer warm temperatures, they can withstand cooler environments to a certain extent. The lowest temperature these plants can handle without causing significant damage is around 50°F (10°C). However, it is essential to note that this temperature is not ideal for their long-term health and should only be experienced for a short period.

When temperatures fall below 50°F (10°C), African Violets become increasingly susceptible to damage and stunted growth. The negative effects of these cooler temperatures can manifest as:

  1. Discolored foliage: Prolonged exposure to low temperatures may cause the leaves to change color, appearing yellow or pale green instead of their usual vibrant hue.
  2. Leaf curling or wilting: In colder conditions, the leaves can curl inwards and wilt, an indication that the plant is experiencing stress.
  3. Reduced growth and flowering: Low temperatures can also significantly impact the plant’s growth rate and ability to flower.
  4. Increased likelihood of diseases and pests: A weakened plant is more susceptible to diseases and pest infestations, and colder temperatures often contribute to this vulnerability.

To avoid exposing your African Violets to dangerously low temperatures, consider moving them to a warmer location within your home during colder months. Additionally, using a space heater or providing extra insulation around their growing environment can help maintain the desired temperature range.

While African Violets can tolerate temperatures as low as 50°F (10°C) temporarily, it’s crucial to keep them within their ideal temperature range of 60-70°F (16-21°C) at night to ensure healthy and thriving plants.

What are the Downsides of Direct Sunlight on African Violets?

While African Violets need ample light to grow and bloom successfully, direct sunlight exposure can be detrimental to their health. Intense, direct sunlight may cause a sudden increase in temperature accompanied by scorching and dehydration, which harms the delicate leaves and flowers of African Violets. It’s important to recognize the downsides of direct sunlight exposure and take measures to prevent them.

Some of the adverse effects caused by direct sunlight on African Violets include:

  1. Leaf scorching: Prolonged exposure to direct sunlight may cause the leaves to turn brown or develop burnt-looking spots, an indication of leaf scorching.
  2. Faded or uneven coloration: Direct sunlight can cause the leaves to lose their vibrant color, appearing pale and faded, or result in uneven coloration due to the varying intensity of light exposure on different parts of the plant.
  3. Wilting or curling of leaves: Extreme heat from direct sunlight may lead to dehydration, resulting in wilted or curled leaves and unhealthy plant growth.
  4. Reduced flowering: Too much direct sunlight can negatively impact the plant’s ability to produce blooms, hindering its overall performance.
  5. Increased water loss: When exposed to direct sunlight, the plant may lose water rapidly through transpiration, leaving it vulnerable to dehydration.

To prevent damage caused by direct sunlight, provide your African Violets with bright, indirect light from sources such as an east or north-facing window. Alternatively, consider using a grow light or fluorescent light fixture to maintain consistent and optimal lighting conditions.

By shielding your plants from harsh direct sunlight while still providing adequate light, you’ll enjoy lush, vigorous African Violets with regular flowering cycles.

What are the Best Heat Sources for African Violets?

Maintaining a consistent and appropriate temperature range is crucial for the healthy growth and flowering of African Violets. Depending on the climate where you live, you may need to provide supplemental heating to create an optimal environment for your plants.

When selecting a heat source for African Violets, it’s important to choose one that offers gentle, even heat distribution without causing drastic fluctuations in temperature.

Some of the best heat sources for African Violets include:

  1. Space heaters: Small, portable space heaters can help raise the temperature in your growing area to a suitable range for your African Violets. Make sure to place the heater at a safe distance to avoid direct contact with the plants or overheating.
  2. Heat mats: Also known as seedling heat mats, these devices provide gentle, consistent heat for plants placed directly on the mat surface. This option is ideal for African Violets, as they benefit from bottom heat.
  3. Grow lights: While primarily used to supplement natural light, some grow lights, such as LED or CFL bulbs, generate mild heat that may help raise the temperature surrounding your plants. This method is most effective in small growing areas or specially designed enclosures.
  4. Warm room placement: Positioning your African Violets in a naturally warm room of your home, such as a kitchen or bathroom, may provide adequate heat without the need for additional equipment.

Regardless of the heat source you choose, ensure that your African Violets remain within their ideal temperature range and avoid extreme fluctuations, as this may stress the plants. By monitoring the temperature closely and making adjustments as needed, your African Violets can thrive and produce stunning blooms in their well-regulated environment.


In summary, maintaining the ideal temperature range is essential for your African Violets’ health and flowering. Understanding the importance of temperature consistency and avoiding extremes will ensure you have vibrant, flourishing plants. If you have any experiences or tips related to African Violets and temperature, please share them in the comments below!

African Violets   Updated: May 17, 2023
avatar Hi, I'm Amy, a devoted horticulturist and the creator of, where I use my expertise to help beginners foster their green thumbs. My blog is a vibrant community where I unravel the complexities of gardening and share my profound love for nature.
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