Digitalis lanata, vernacularly often called woolly foxglove or Grecian foxglove, is a species of foxglove, a flowering plant in the plantain family Plantaginaceae. It gets its name due to the woolly indumentum of the leaves. D. lanata, like other foxglove species, is toxic in all parts of the plant. Symptoms of digitalis poisoning include nausea, vomiting, severe headache, dilated pupils, problems with eyesight, and convulsions at the worst level of toxicity. The plant is also harmful to other animals.
Grecian foxglove is fairly disease-resistant and generally not vulnerable to illnesses. Still, it can be affected by pests and diseases present in the surrounding area, though these problems are typically mild. As for care, the plant needs moderate maintenance. It should be pruned regularly to preserve a neat appearance and support healthy growth, and fertilizing can encourage flowering. Grecian foxglove is well suited to anyone who has an outdoor area, like a garden or patio, and does not demand extensive plant-care experience. It may need extra attention when kept indoors.
How to keep Digitalis Lanata.
Light
Grecian foxglove prefers locations that receive sunlight for part of the day, though it can tolerate sites exposed to sun for longer periods. Sunlight stimulates its growth. Still, excessive or insufficient light can hinder its development. Its natural habitat mirrors this light preference.
Water
Grecian foxglove thrives best with moderate moisture and should be watered weekly to prevent waterlogging. Commonly grown outdoors for its ornamental beauty, it needs adequate drainage and good air circulation to avoid fungal diseases caused by excessive humidity.
Temperature
Grecian foxglove is native to temperate regions and needs temperatures of 68 to 95 °F (20 to 35 °C) to thrive. In colder months, consider bringing the plant indoors or providing protection to maintain the ideal temperature.
Fertilizer
The best time to fertilize a Grecian foxglove is in early spring, as it is coming out of dormancy and beginning active growth. Fertilizing supplies essential nutrients needed for healthy development. Although Grecian foxglove has relatively low fertilizer requirements, applying fertilizer annually can improve its survival and encourage better, longer-lasting flowers.
Pruning
For optimal growth, the Grecian foxglove, a biennial plant, needs strategic pruning. Pruning in early spring encourages new growth, while removing spent flowers in late spring enhances blooming and reduces self-seeding. Use sharp, sanitized tools to improve air circulation, prevent fungal problems, and maintain the plant's vigorous health.
Botanical profile.
- Plant Type
- Herb
- Life Cycle
- Perennial, Biennial
- Genus
- Digitalis
- Family
- Plantaginaceae
- Hardiness Zone
- 4-8
- Mature Height
- 91 cm
- Mature Spread
- 40 cm
- Leaf Color
- Green
- Leaf Type
- Deciduous
- Flower Color
- White
- Flower Size
- 2.03 cm to 3.05 cm
- Bloom Time
- Early summer, Mid summer
- Planting Time
- Spring, Summer
- Harvest Time
- Late summer, Early fall
Other names.
Reader questions.
How should I water my Grecian foxglove plants in the best way?
To properly care for the Grecian foxglove, it's important to use filtered water that is at room temperature. Tap water may contain harmful particles, so filtered water is preferred. The reason for using room temperature water is that the Grecian foxglove is used to warm environments and cold water can be a shock to it. Additionally, avoid watering the plant from above as it can cause issues with the foliage. Instead, water the soil directly until it is thoroughly moistened. This benefits the plant by providing moisture to the roots and allowing them to spread and gather nutrients from the soil.
Why should I add nutrients to my Grecian foxglove?
Fertilization is important for the Grecian foxglove because it provides essential nutrients for the plant's growth, both above and below ground. While the fertilization needs of the Grecian foxglove are generally low, annual fertilization can be highly beneficial. It not only helps to keep the plant alive but also promotes the production of longer-lasting, more beautiful flowers. Therefore, if you want your Grecian foxglove to look its best, it is recommended to fertilize it annually.
What are the sunlight requirements for Grecian foxglove?
Grecian foxglove thrives in both partial and full sun conditions. It requires about 3-6 hours of sunlight per day for partial sun exposure and more than 6 hours for full sun exposure. Observing how sunlight moves through your garden allows for optimal placement, ensuring the plants receive a balanced amount of light and shade for their happiness.
What is the native climate for Grecian foxglove to thrive?
Grecian foxglove, botanically known as Digitalis lanata, is native to temperate climates. It thrives in temperatures ranging from 68 to 95 °F (20 to 35 °C). In order to ensure its well-being, it's important to maintain these temperature conditions. During colder seasons, it may be necessary to move the plant indoors or provide it with some form of protection to keep it within its ideal temperature range.
What do I do if I give too much or too little water to my Grecian foxglove plant?
Both overwatering and underwatering can harm the health of your Grecian foxglove, but overwatering is more common. Overwatering can cause wilting, yellowing of the stems and leaves, and lead to diseases like root rot, mold, and mildew, which can be fatal for the plant. Underwatering is less common because the Grecian foxglove can tolerate drought, but it can still occur and result in brittle, brown leaves. It's crucial to recognize the signs of overwatering early on and reduce watering immediately. If the soil drains poorly, replace it with a well-draining potting mix. If your plant shows signs of needing more water, simply water it more regularly until the signs subside.
When should I fertilize my Grecian foxglove?
The best time to fertilize a Grecian foxglove is in late winter to early spring when the plant is coming out of its dormant phase and starting to grow. Fertilizing at this time helps promote healthy growth and sets the plant up for a successful season. While it is generally best to fertilize in early spring, it is also okay to fertilize in the fall. However, it is not recommended to fertilize during summer or winter.
How does sunlight impact Grecian foxglove's growth?
Sunlight significantly influences the growth of Grecian foxglove, providing the energy it needs to thrive. While this plant loves sunlight for a part of the day and can handle longer sun exposures, too much or too little light can negatively affect its development. Its native habitat conditions have shaped its light preferences, underscoring the importance of the right lighting conditions for optimal growth.
How does Grecian foxglove handle cold temperatures and what are the recommended winter care instructions?
Grecian foxglove exhibits strong resistance to cold, meaning it can usually withstand the winter without needing special frost protection measures. However, if temperatures are expected to plummet below -30°C, protective measures should be considered to shield the plant from the cold. This could include covering the plant with soil or straw. Additionally, to mitigate the risks of drought and water scarcity during the winter and early spring, it's recommended to water the plant abundantly before the first freeze of autumn, ensuring the soil remains moist as it enters a frozen state.
How frequently do I need to water my Grecian foxglove plant?
If your Grecian foxglove is in a pot, the most precise way to determine if it needs water is to check the soil moisture by sticking your finger into it. If the top two to three inches of soil feel dry, then it's time to water your plant. If you're growing the Grecian foxglove outdoors in the ground, you can use a similar method to test the soil. Again, if the top few inches of soil are dry, it's time to water it. Typically, during the spring and early fall, watering your plant once a week based on this method is usually sufficient. However, in extremely hot weather, you may need to increase watering to about twice or more per week. It's worth noting that mature, well-established Grecian foxgloves can tolerate drought quite well.
When is the best time to not fertilize my Grecian foxglove plant?
To keep your Grecian foxglove healthy, it's best to only fertilize it during late winter and early spring. This plant doesn't need a lot of fertilizer, so one feeding per year is enough. Fertilizing during spring, summer, or fall can lead to overfertilization and its complications, unless you skipped fertilizing in spring, then it's okay to feed it in fall. During most of the growing season, it's best to avoid fertilizing altogether. The plant also doesn't need fertilizer during winter since it's in a dormant phase and not actively growing.
What are the guidelines for using artificial lighting with indoor plants?
For indoor Grecian foxgloves, adequate lighting is crucial, especially when natural sunlight is insufficient. Artificial lights, such as LED lights, can mimic natural sunlight by providing the necessary wavelengths for plant growth. The general guidelines include selecting the right type of light, adjusting the light intensity (30-50W/sq ft for full sun plants, 20-30W/sq ft for partial sun, and 10-20W/sq ft for full shade plants), setting the correct distance (12-36 inches above the plant), and ensuring the right duration of light exposure (8-12 hours per day) to promote healthy growth.
What should be done if Grecian foxglove experiences low temperatures below its tolerance level?
Grecian foxglove manages quite well in cooler conditions and ideally should be kept in temperatures above 20°C. However, during winter, ensuring the temperature stays above 0°C is crucial. If temperatures fall below -30°C, the plant may not show noticeable changes during the winter but could suffer from decreased sprouting or fail to sprout at all come springtime. The recommended solution for such a scenario is to remove any parts of the plant that have failed to sprout in the spring.