Echinops exaltatus, the Russian globe thistle or tall globethistle, is European species of globe thistle in the family Asteraceae. It is native to central and eastern Europe from Germany and Italy east into Russia. The species has escaped cultivation and become established in the wild in scattered locations in eastern Canada and the northern United States.
The tall globe-thistle is fairly disease-resistant and usually not prone to illness. However, it can be vulnerable to pests and diseases present in its environment. These problems are generally mild. As for care, this plant requires a moderate level of maintenance. It should be pruned regularly to keep a neat appearance and support healthy growth. Fertilizing can also help encourage it to flower. Tall globe-thistle is suitable for people with outdoor spaces like a garden or patio and does not demand extensive care experience. It may need more attention if grown indoors.
How to keep Echinops Exaltatus.
Light
Tall globe-thistle is a perennial herbaceous plant that prefers sunny, open habitats and is often found in meadows and grasslands. It favors full sun but can also tolerate partial sun.
Water
Tall globe-thistle, native to temperate regions, thrives in moderate water conditions. It needs to be watered weekly to keep the soil moist, although it can withstand short dry spells. This outdoor plant, often seen in garden borders, is well adapted to make the most of seasonal rains during its growing season.
Temperature
Tall globe-thistle can adjust to a wide variety of temperature conditions, though its range may still be restricted by particular combinations of moisture and heat. It grows best in warm summer climates with adequate rainfall or watering. Long periods of cloudy, rainy weather or prolonged high temperatures can raise the risk of Tall globe-thistle dying. In winter, protecting the plant from cold can increase its chances of surviving.
Fertilizer
The best time to fertilize a Tall globe-thistle is in early spring, as it breaks dormancy and starts active growth. Fertilizer supplies essential nutrients for healthy development. Although Tall globe-thistle has fairly low fertilizer requirements, an annual application can improve its survival and encourage better, longer-lasting blooms.
Pruning
Tall globe-thistle is known for its spiky, globe-shaped flowers. To keep the plant healthy and looking its best, it's beneficial to prune it during its dormant period, from early to late spring. Start by removing any dead stems, cutting them back to healthy tissue just above the leaf nodes. This helps promote air circulation, reduces the risk of disease, and encourages a more compact shape.
Botanical profile.
- Plant Type
- Herb
- Life Cycle
- Perennial
- Genus
- Echinops
- Family
- Asteraceae
- Hardiness Zone
- 3-9
- Mature Height
- 0.49 m to 1.22 m
- Mature Spread
- 61 cm to 91 cm
- Leaf Color
- Green
- Leaf Type
- Deciduous
- Flower Color
- Green, Blue, Silver
- Flower Size
- 5.08 cm to 6.35 cm
- Bloom Time
- Summer
- Planting Time
- Spring, Summer
- Harvest Time
- Late summer, Early fall, Mid fall
- Native Area
- Italy, Slovakia, France, Bulgaria, Albania, Romania, Croatia, Slovenia, Ukraine, Serbia
Other names.
Reader questions.
How should I water my Tall globe-thistle plant?
To properly water the Tall globe-thistle, it is recommended to use filtered water at room temperature. Tap water may have harmful particles, so filtered water is the better option. The reason for using room temperature water is that this plant is accustomed to a warm environment, and cold water might be a shock. Additionally, avoid overhead watering as it can cause issues with the foliage. Instead, water the plant by applying filtered room temperature water directly to the soil until it is completely soaked. This helps moisten the roots and allows them to spread and absorb the necessary nutrients from the soil.
Why should I put fertilizer on my Tall globe-thistle?
The main structure of the Tall globe-thistle is made up of its leaves. Fertilization is essential for keeping these leaves looking great and functioning properly. Proper fertilization ensures consistent leaf color and a healthy texture. Fertilization also has benefits below the soil's surface. It helps the Tall globe-thistle develop new roots and maintain existing ones. This not only promotes current plant health but also improves the plant's ability to absorb nutrients from the soil in the future.
What are the sun requirements for Tall globe-thistle?
Tall globe-thistle thrives best in full sun conditions, requiring above 6 hours of sunlight a day. It can also tolerate partial sun, which means about 3-6 hours of sunlight daily. It's essential to observe the movement of sunlight through your garden to ensure your plants receive the optimal balance of light and shade, guaranteeing their growth and health.
What should I do if I give my Tall globe-thistle too much or too little water?
Both overwatering and underwatering can harm your Tall globe-thistle, but overwatering is a more common issue. When this species gets too much water, its stems and leaves may wilt and turn yellow. Overwatering for a long time can also cause root rot, mold, and mildew, which can be fatal to your plant. Underwatering is less likely, as the Tall globe-thistle can tolerate drought fairly well. However, it is still a possibility, and in those cases, the leaves may become brittle and brown. It is important to notice the signs of overwatering as soon as possible. Some of the resulting diseases, like root rot, may not be reversible if not addressed promptly. If you see early signs of overwatering, reduce your watering immediately. Also, check the soil quality where the plant grows. If it drains poorly, replace it with a loose, well-draining potting mix. Conversely, if your Tall globe-thistle shows signs of receiving too little water, simply water it more regularly until the signs fade away.
When should I fertilize my Tall globe-thistle?
If you choose to grow your Tall globe-thistle outdoors, this perennial plant will grow new leaves in early spring. This is a signal that it's time to start fertilizing for the year. Usually, a single application of fertilizer in the spring is sufficient for the Tall globe-thistle to thrive. However, if you want to maximize its growth, you can fertilize it multiple times throughout the spring and early summer. In this case, you can feed the Tall globe-thistle approximately once every month to a month and a half.
What essentials should be known for growing Tall globe-thistle?
Tall globe-thistle is a perennial herbaceous plant that loves sunlight. Originating from open habitats like meadows and grasslands, it prefers full to partial sun conditions. For indoor plants lacking natural sunlight, especially during winter or in less sunny areas, artificial lighting is a crucial alternative. Use artificial lights like LED, which can be customized to provide specific wavelengths of light. Full sun plants should get 30-50W/sq ft, partial sun plants 20-30W/sq ft, and full shade plants 10-20W/sq ft of artificial light. The light source should be placed 12-36 inches above the plant for 8-12 hours a day to simulate natural sunlight efficiently.
How often should I water my Tall globe-thistle plant?
If your Tall globe-thistle is in a pot, you can determine if it needs water by checking the soil. Plunge your finger into the soil and if the top two to three inches are dry, it's time to water. If your Tall globe-thistle is planted outdoors in the ground, you can use a similar method to test the soil. When the top few inches of soil are dry, it's time to add water. Generally, during spring and early fall, watering once a week is sufficient. However, in extremely hot weather, you may need to water twice or more per week. It's important to note that mature, well-established Tall globe-thistles can tolerate drought well.
When should I not put fertilizer on my Tall globe-thistle?
During the late fall and winter, your Tall globe-thistle will go into a dormant phase where it stops growing. It's important to avoid fertilizing during this time. In the spring and summer, you can choose to fertilize, but as summer comes closer, you should decrease the amount of fertilizer you use since the growth rate of your Tall globe-thistle will slow down too. In general, it's not a good idea to fertilize when it's extremely hot or when the soil is very dry, as this can stress your Tall globe-thistle and cause it to die early.
How can you tell if a Tall globe-thistle is getting insufficient light?
When a Tall globe-thistle doesn't receive enough light, it shows several symptoms: new leaves may grow smaller than mature ones, the plant can develop a leggy or sparse appearance due to longer spaces between leaves or stems, and there might be faster leaf drop as the plant sheds older leaves to conserve resources. Furthermore, the plant might show slower or no new growth, entering a survival mode due to poor light conditions. Light-colored new leaves or chlorosis, indicating a lack of chlorophyll, along with sunscald, leaf curling, wilting, and leaf scorching from overexposure to intense sunlight, are other potential symptoms.
How much water does my Tall globe-thistle plant need?
To water your Tall globe-thistle effectively, be generous with the amount of water you use. Wait until the top two to three inches of soil are dry before watering thoroughly. Make sure to water enough to saturate the entire soil, causing excess water to drain out from the bottom holes of your pot. If you don't see any excess water draining, it means you haven't watered enough. However, be careful not to let water accumulate in the soil, as it can harm the plant. On the other hand, if water is not draining well, it may be due to poorly draining soils, which is not good for the plant's health. If the plant is outdoors, 1 inch of rain per week is sufficient.
What kind of plant food does my Tall globe-thistle need?
Choosing the best fertilizer for a Tall globe-thistle is simple. These plants do well with a general-purpose garden fertilizer that has equal parts nitrogen, phosphorus, and potassium, like a 10-10-10 ratio. Avoid fertilizers with high nitrogen content. Granular slow-release fertilizers are generally the best for Tall globe-thistle, and they are easy to apply. Additionally, feeding the plant with organic soil amendments, such as compost, can be beneficial.
What are some solutions for Tall globe-thistle experiencing light-related issues?
To combat light deficiency in Tall globe-thistle, gradually move the plant to a sunnier location each week until reaching at least 6 hours of direct daily sunlight. For indoor plants, using a south-facing window or providing artificial light, such as keeping a lamp on for at least 8 hours daily or using professional grow lights, can supplement light needs. For outdoor plants, moving them gradually to avoid sudden exposure is key to preventing sunburn. If your plants are in the ground and blocked by obstructions like trees, consider pruning or transplanting them during their dormant period to a location with better sunlight and drainage. Although parts of the plant damaged by low light may not recover, new growth should be healthy with increased light exposure.