Aethionema saxatile — a medium houseplant, prefers full sun light
SPECIMEN · FROM THE LIBRARY
Aethionema saxatile

Aethionema Saxatile

Updated · 341 observations
ON THIS PLANT

Aethionema saxatile, the burnt candytuft, is a species of flowering plant in the family Brassicaceae. It is found in the European Alps.

A note from PlantMom

Burnt candytuft has strong disease resistance and is generally not susceptible to illnesses. Still, it can be affected by pests and diseases present in its surroundings. These problems are typically not severe. Care-wise, this plant needs moderate maintenance. It should be pruned regularly to preserve a neat appearance and healthy growth. Fertilizing can also encourage flowering. Burnt candytuft is appropriate for anyone with outdoor space, such as a garden or patio, and does not demand extensive care experience. It may need more attention when grown indoors.

— PlantMom
CARE GUIDE

How to keep Aethionema Saxatile.

Light

Burnt candytuft prospers with abundant sunlight, since its native environment is largely sunny. The amount of sun it gets greatly affects its growth and vigor. Excessive shade or too little sun can impede its development and overall health. The plant requires considerable sunlight at every stage of growth.

Water

The burnt candytuft, native to the rocky outcrops of the Mediterranean, is well-adapted to drought conditions. It requires minimal watering, needing hydration only once a week. Thriving in full sun and dry soil, this plant is ideal for xeriscaping and rock gardens. Its deep root systems make it highly efficient at extracting moisture from the soil.

Temperature

Burnt candytuft is suited to its native growing environment where temperatures range from 50 to 95 °F (10 to 35 °C). It prefers moderate climates and may need measures like shade or mulching when temperatures become extreme.

Fertilizer

The best time to fertilize Burnt candytuft is in early spring, as it emerges from dormancy and begins active growth. Fertilizing supplies essential nutrients for healthy development. Although Burnt candytuft has modest fertilizer requirements, an annual feeding can improve its survival and promote better, longer-lasting flowers.

Pruning

Burnt candytuft is known for its compact growth and profusion of blooms. To maintain its shape and encourage bushiness, prune the plant in early to late spring after it has flowered. Remove spent flowers and trim up to one-third of the plant. Avoid pruning later in the season to protect the new growth, which will enhance flower production and improve the overall health of the plant.

CHARACTERISTICS

Botanical profile.

Plant Type
Herb
Life Cycle
Perennial
Genus
Aethionema
Family
Brassicaceae
Hardiness Zone
6-10
Mature Height
5 cm
Mature Spread
5 cm to 15 cm
Leaf Color
Green
Leaf Type
Evergreen
Flower Color
White
Flower Size
2.54 cm
Bloom Time
Mid spring, Late spring, Early summer
Planting Time
Spring, Summer, Autumn
Harvest Time
Summer
ALSO KNOWN AS

Other names.

en Burnt Candytuft en Aethionema
FREQUENTLY ASKED

Reader questions.

How should I water my Burnt candytuft?

To properly water the Burnt candytuft, use filtered water at room temperature or slightly warmer. Tap water may contain harmful particles, so filtered water is preferred. The plant prefers warmer water because it originates from a warm environment and cold water can shock it. Avoid overhead watering as it can harm the foliage. Instead, slowly pour filtered room temperature water onto the soil until it is completely soaked. This method benefits the plant by moistening the roots and allowing them to spread and absorb nutrients from the soil.

Why should I add fertilizer to my Burnt candytuft?

The structure of the Burnt candytuft is mainly composed of its leaves. Fertilization plays a crucial role in maintaining the appearance and function of these leaves. Proper fertilization promotes consistent color and a healthy texture, ensuring that the leaves look great. Fertilization also has benefits beyond the surface, as it supports the growth of new roots and maintains the existing ones in the root system. By fertilizing your Burnt candytuft, you not only keep it healthy currently but also enhance its ability to absorb nutrients from the soil in the long run.

What are the sunlight requirements for Burnt Candytuft?

Burnt Candytuft requires full sun, which means it needs above 6 hours of sunlight daily. Observing how sunlight moves through your garden is essential in selecting a location that provides a perfect balance of light and shade, ensuring your plants' happiness. This plant thrives in its native habitat under predominantly sunny conditions. The amount of sun received significantly influences its growth and health, with excessive shade or insufficient sun exposure hindering its growth and overall well-being.

What is the ideal temperature range for Burnt candytuft?

Burnt candytuft thrives in a native growth environment with temperatures ranging from 50 to 95 °F (10 to 35 °C). It is well adapted to moderate climates and may need certain adjustments like shade or mulching to cope with temperatures outside this range. Its strong cold resistance means that it generally does not require special frost protection measures. However, in regions where winter temperatures are expected to drop below -25°C, providing cold protection by covering the plant with soil or straw is advisable. Additionally, watering the plant abundantly before the first freeze in autumn, to ensure the soil remains moist, helps in preventing drought stress during winter and early spring.

What should I do if I give my Burnt candytuft too much or too little water?

Both overwatering and underwatering can harm the health of your Burnt candytuft, but overwatering is more commonly an issue. When this plant gets too much water, its stems and leaves may wilt and turn yellow. Overwatering for a long time can also cause diseases like root rot, mold, and mildew, which can kill the plant. Underwatering is less common because the Burnt candytuft can tolerate drought. But it can still happen, and when it does, the leaves become brittle and brown. It's important to recognize the signs of overwatering quickly when taking care of your Burnt candytuft. Some diseases from overwatering, like root rot, can't be fixed if you wait too long. If you see early signs of overwatering, reduce watering immediately. Also, check the soil quality where the Burnt candytuft grows. If it drains poorly, replace it with a well-draining potting mix. If you notice signs of underwatering, just water regularly until the signs go away.

When should I fertilize my Burnt candytuft?

If you have a Burnt candytuft plant outdoors, it will start growing new leaves in early spring. This is a sign that it's time to start fertilizing for the year. Usually, one application of fertilizer in the spring is enough for the plant to do well. But if you want your Burnt candytuft to grow as much as possible, you can fertilize it multiple times during the spring and early summer. In this case, you can feed it about once every month to a month and a half.

How can artificial lighting be used for Burnt Candytuft?

Indoor Burnt Candytuft plants require adequate lighting for optimal growth, especially when natural sunlight is insufficient, like in winter or less sunny spaces. Artificial lights, including LEDs which can be customized to specific wavelengths of light, are vital in promoting faster, healthier growth. For plants that need full sun, 30-50W/sq ft of artificial light is recommended, 20-30W/sq ft for partial sun plants, and 10-20W/sq ft for full shade plants. The artificial light source should be placed 12-36 inches above the plant, mimicking natural sunlight, and should be on for 8-12 hours per day, depending on the plant species.

How does Burnt candytuft react to low temperatures?

Burnt candytuft is cold-tolerant and performs best when the temperature stays above 10°C. In winter, it's crucial to keep the temperature above -15°C to ensure the plant's well-being. If temperatures fall below -25°C, while there may not be immediate noticeable changes, the plant may demonstrate a decreased ability to sprout or might not sprout at all come spring. In such cases, it is recommended to remove any parts of the plant that fail to sprout once warmer temperatures return.

How frequently should I water my Burnt candytuft plant?

If your Burnt candytuft plant is in a pot, the most precise way to determine if it needs water is to touch the soil with your finger. If the top two to three inches of soil feel dry, it's time to water the plant. If you have planted the Burnt candytuft outdoors in the ground, you can use the same method to test the soil. Once the top few inches of soil have dried out, it's time to water the plant. Usually, during spring and early fall, this method will require watering once a week. However, during extremely hot weather, you may need to water it twice or more per week. It's worth noting that mature, well-established Burnt candytuft plants can withstand drought quite well.

When is the best time to not add fertilizer to my Burnt candytuft?

During the late fall and winter, your Burnt candytuft will go into a dormant phase and stop producing new growth. It's best to avoid fertilizing during this time. In spring and summer, if you choose to fertilize multiple times, start decreasing the amount of fertilizer as summer approaches because the growth rate of your Burnt candytuft will also slow down. Overall, it's not recommended to fertilize your Burnt candytuft during extremely hot weather or when the soil is extremely dry. Fertilizing in these conditions can stress your Burnt candytuft and cause it to die earlier.

What are the signs of inadequate sunlight for Burnt Candytuft?

When Burnt Candytuft doesn't receive enough sunlight, several symptoms can manifest, including new leaves growing smaller, leggy or sparse growth with longer spaces between leaves or stems, faster leaf drop as the plant tries to conserve resources, slowed or halted growth, paler or irregularly colored new leaves indicating a lack of chlorophyll, chlorosis where leaves turn yellow due to chlorophyll breakdown, sunscald characterized by pale or necrotic areas on the plant, leaf curling as a defense against excessive sunlight, wilting from too much transpiration, and leaf scorching appearing as brown, dry edges on leaves.

What should be done if Burnt candytuft experiences high temperatures?

During the summer months, it is important to ensure that the temperature surrounding Burnt candytuft does not exceed 35°C. Exposing the plant to temperatures above 41°C can lead to discoloration and curling of leaves, increasing the risk of sunburn; in severe cases, it might result in the plant wilting and drying out completely. To mitigate such risks, it is advisable to trim away any parts that have sustained sunburn or dried up. Relocating the plant to a shaded area or using a shade cloth can provide adequate protection against the harsh midday and afternoon sun. Ensuring that the plant is watered in the morning and evening can help maintain soil moisture, which is crucial for the plant's survival under high temperatures.

PLATES
Aethionema saxatile leaf
PLATE 01 · leaf
Aethionema saxatile leaf
PLATE 02 · leaf
Aethionema saxatile flower
PLATE 03 · flower
Aethionema saxatile flower
PLATE 04 · flower
Aethionema saxatile fruit
PLATE 05 · fruit
Aethionema saxatile fruit
PLATE 06 · fruit
ALSO IN THE LIBRARY

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