Echinacea angustifolia
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Echinacea angustifolia

سرخارگل، · Purple coneflower · Black-sampson echinacea · Narrow-leaf echinacea · Narrow-leaf purple-coneflower

Tier 1 Difficulty: medium Water: low Light: full_sun
Water every
7 days
0
Soil pH
6–7
Hardiness
Zone 3–8
Click count
511
Observations
1,067

Description

Source: leafsnap

Echinacea angustifolia, the narrow-leaved purple coneflower or blacksamson echinacea, is a species of flowering plant in the family Asteraceae. It is native to North America, where it is widespread across much of the Great Plains of central Canada and the central United States, with additional populations in surrounding regions.E. angustifolia is a perennial herb with spindle-shaped taproots that are often branched. The stems and leaves are moderately to densely hairy. The plant produces one flower heads one branch - each at the end of a long peduncle. Each flower head contains 8–21 pink or purple ray florets plus 80–250 orange disc florets.Echinacea angustifolia blooms in late spring to mid-summer. It is found growing in dry prairies and barrens with rocky to sandy-clay soils. There are two subspecies: Echinacea angustifolia subsp. angustifolia is native to central Canada and the central United States from Saskatchewan and Manitoba in the north to Arizona, New Mexico, Texas, and Louisiana in the south. Echinacea angustifolia subsp. strigosa has a more limited range in Kansas, Oklahoma, Texas, and Louisiana.Many Native American groups used this plant for traditional medicine, although there is mixed consensus that it is effective or safe for treating disease.

Care Guide

💧 Water Every week

Blacksamson echinacea, native to the North American prairies, thrives in well-drained soils and is drought-tolerant thanks to its deep taproot. For optimal growth, it needs to be watered weekly. While it can endure cooler temperatures, its irrigation requirements decrease significantly outside the growing season.

Suggested frequency: Every week
FAQ
How should I water my Blacksamson echinacea plant?

To properly water the Blacksamson echinacea, follow these guidelines for best results. Firstly, use filtered water at room temperature as tap water might have harmful particles. This is important because the plant comes from a warm environment and cold water can shock its system. Additionally, avoid overhead watering as it can lead to foliage issues. Instead, apply filtered room temperature water directly to the soil until it is thoroughly soaked. This benefits the plant by moistening the roots and aiding their spread through the soil to gather necessary nutrients.

What do I do if I give my Blacksamson echinacea plant too much or too little water?

Overwatering is a common issue for Blacksamson echinacea and can have negative effects on its health. When this plant receives too much water, its stems and leaves may wilt and turn yellow. Over time, overwatering can lead to diseases like root rot, mold, and mildew, which can be fatal for the plant. Underwatering, on the other hand, is less common for Blacksamson echinacea due to its decent drought tolerance. However, it can still happen, and when it does, the plant's leaves may become brittle and brown. To care for your Blacksamson echinacea, it is crucial to notice the signs of overwatering early on. Some diseases caused by overwatering, like root rot, may not be fixable if you wait too long. If you see early signs of overwatering, reduce your watering schedule immediately. Also, check the quality of the soil. If it drains poorly, replace it with a loose, well-draining potting mix. If you notice signs of underwatering, simply water more regularly until the plant recovers.

How frequently should I water my Blacksamson echinacea?

If your Blacksamson echinacea plant is in a pot, the easiest way to determine if it needs water is by sticking your finger into the soil. If the top two to three inches of soil are dry, it's time to water it. If you grow your Blacksamson echinacea outdoors in the ground, you can use a similar method to check the soil. Once the top few inches have dried out, it's time to water. Generally, in the spring and early fall, watering once a week is sufficient. However, during hot weather, you may need to water twice or more per week. It's worth noting that mature, well-established Blacksamson echinacea plants have a great ability to withstand drought.

How much water does my Blacksamson echinacea plant need?

To properly water your Blacksamson echinacea, don't hold back on the amount of water you give. Make sure the top two to three inches of soil are dry, then give the plant a thorough watering. The goal is to completely saturate the soil, so water it enough that excess water flows out of the drainage holes at the bottom of the pot. If you don't see water draining from the pot, you probably didn't give enough water. However, be careful not to let water accumulate in the soil, as this can harm the plant. On the other hand, if water doesn't drain well from the pot, it could mean the soil doesn't drain properly, which is bad for the plant's health. If the plant is outdoors, it will only need about one inch of rain per week.

How do I water my Blacksamson echinacea plant as it grows?

The water needs of the Blacksamson echinacea can vary depending on its growth stages. In the early years or after transplanting, it requires more water due to focusing on root development. These roots need extra moisture for optimal growth. However, as the plant matures, it will require less water. Another stage that may require increased watering is during the bloom period, as the flowers utilize a significant amount of moisture.

☀️ Light Full sun

Blacksamson echinacea grows best with abundant light but can cope with moderate illumination. In its native habitats it usually gets plentiful light, which aids its growth. Too much or too little light can impair its health, resulting in stunted growth or changes in color.

Ideal: Full sun
FAQ
What are the sunlight requirements for Blacksamson echinacea?

Blacksamson echinacea, or Echinacea angustifolia, thrives best when it receives full sun, which is defined as above 6 hours of sunlight daily. However, it can also manage in partial sun, receiving about 3-6 hours of sunlight. Observing how sunlight moves through your garden and selecting spots that offer a balance of light and shade will ensure the best conditions for your plant's growth. Adequate sunlight is essential, as too much or too little can lead to issues such as stunted growth or changes in color.

How can artificial lighting be used for Blacksamson echinacea?

For indoor Blacksamson echinacea plants or those in areas with insufficient natural sunlight, especially during winter or in less sunny spaces, artificial lighting is a crucial solution. LED lights are recommended due to their ability to provide specific wavelengths of light needed by plants. Full sun plants require 30-50W/sq ft, partial sun plants need 20-30W/sq ft, and full shade plants should receive 10-20W/sq ft of artificial light. The light source should be placed 12-36 inches above the plant to mimic natural sunlight, with a duration of 8-12 hours of light per day to foster optimal growth.

What are the symptoms of inadequate lighting for Blacksamson echinacea?

Black samson echinacea exhibits several symptoms when subjected to inadequate lighting, including smaller new leaves, leggy or sparse growth, faster leaf drop, slower or no new growth, and lighter-colored new leaves indicating low chlorophyll and nutrient levels. Additionally, excessive sunlight can cause chlorosis, sunscald, leaf curling, wilting, and leaf scorching, highlighting the importance of balanced light exposure.

What solutions can improve sunlight exposure for Blacksamson echinacea?

To optimize light exposure for Blacksamson echinacea, gradually adjust the plant's location to ensure it receives at least 6 hours of direct sunlight if indoors, using south-facing windows and keeping curtains open. Consider artificial lighting for large, immovable plants, ensuring lights are on for at least 8 hours daily. For outdoor plants, move them gradually to sunnier spots to prevent sunburn, and for plants blocked by obstacles, prune or transplant them during their dormant season to areas with ample sunlight and good drainage.

🌡️ Temperature 0–32.2°C

Blacksamson echinacea is naturally suited to temperate climates and prefers temperatures from 32 to 90 °F (0 to 32 °C). In hotter conditions it needs extra shade or more frequent watering to do well. In cooler months, the plant can withstand temperatures close to freezing with little or no adjustment.

Ideal temperature: 0–32.2°C
FAQ
What are the essential growing conditions for Blacksamson echinacea?

Blacksamson echinacea, or Echinacea angustifolia, is well-suited to temperate climates and prefers temperatures ranging from 32 to 90°F (0 to 32°C). To ensure its health in higher temperatures above this range, the plant may require additional shade or watering. Conversely, it exhibits strong cold resistance and can typically survive near-freezing temperatures without special accommodations. Despite this resilience, if winter temperatures are expected to drop below -35°C, protective measures should be taken, such as covering the plant with soil or straw. Additionally, it is beneficial to water the plant abundantly before the first freeze of autumn to maintain soil moisture through the colder months, aiding in winter and early spring survival.

What should be done if Blacksamson echinacea experiences extremely low temperatures?

Blacksamson echinacea thrives best in temperatures above 0°C and should ideally not be exposed to conditions below -30°C. Exposure to temperatures below -35°C may not show immediate damage but can result in decreased or absent sprouting in the following spring. If after an unusually harsh winter the plant fails to sprout, it's recommended to remove any parts of the plant that show no signs of life. Taking these steps can help ensure the plant's health and vitality for the upcoming growing season.

How should Blacksamson echinacea be cared for during high temperature periods?

During the summer months, when temperatures climb above its preferred range, Blacksamson echinacea requires special attention to prevent heat stress. If temperatures exceed 32°C, the plant's leaves may lighten, curl, become prone to sunburn, and, in severe cases, the plant may wilt and dry out entirely. To combat these symptoms, it's advisable to trim away any sunburned or dried parts of the plant. Providing shade during the midday and afternoon sun, either by relocating the plant or using a shade cloth, can also be beneficial. Additionally, watering the plant in the morning and evening helps keep the soil moist and supports the plant's overall well-being during hot weather.

💨 Humidity
Humidity:
🪴 Soil 6-7
Soil pH: 6-7
🌱 Fertilizer

The best time to fertilize a Blacksamson echinacea is in early spring, as it comes out of dormancy and starts active growth. Fertilization supplies important nutrients for healthy development. Although Blacksamson echinacea has fairly low fertilizer requirements, applying fertilizer annually can improve its survival and encourage better, longer-lasting flowers.

FAQ
Why should I put fertilizer on my Blacksamson echinacea?

Fertilization is important for the Blacksamson echinacea because it provides essential nutrients for the plant's growth. While the overall fertilization needs for this plant are relatively low, annual fertilization can greatly benefit its survival and enhance the quality and longevity of its flowers. Therefore, those who want their Blacksamson echinacea to flourish should prioritize regular fertilization.

When should I fertilize my Blacksamson echinacea for the best results?

The best time to fertilize a Blacksamson echinacea is in late winter to early spring. During this time, the plant is transitioning from dormancy to active growth, and fertilization at this time promotes healthy growth for the season. It is also possible to fertilize the plant in the fall, but it is not recommended to feed it during summer or winter.

When should I not put fertilizer on my Blacksamson echinacea plant?

To properly care for your Blacksamson echinacea, it is recommended to only fertilize it during the late winter and early spring. This plant doesn't require frequent fertilization, so a single annual feeding is enough. Overfertilizing during the spring, summer, and fall can cause complications, unless you missed fertilizing in the spring, which then permits feeding in the fall. Additionally, there is no need to fertilize this plant during the winter when it is in a dormant growth phase and not producing new growth.

Which fertilizer is best for my Blacksamson echinacea?

When it comes to fertilizing a Blacksamson echinacea, most general-purpose fertilizers with balanced amounts of the main plant nutrients will work well. However, some nutrient blends can be even better. Many gardeners believe that higher phosphorus levels can lead to stronger roots and better flowers, making a phosphorus-rich fertilizer a good choice for this flowering plant. Whether you use granular or liquid fertilizer, it's important to ensure that there are plenty of nutrients present. In addition to manufactured fertilizers, you can also improve the soil for your Blacksamson echinacea using organic options like compost and manure. These materials can greatly contribute to creating a healthy growing medium for your plant.

How should I fertilize my Blacksamson echinacea plant?

To fertilize a Blacksamson echinacea, the most common method is to apply granular or pellet fertilizer to the soil surrounding the plant. The ideal time to fertilize is when the plant is transitioning from its winter dormant growth phase to an active growth phase. In early spring, wait until the plant starts to produce shoots before applying the fertilizer. Alternatively, some people may opt for liquid fertilizer instead of granular. If using liquid fertilizer, it should be diluted with water prior to application. Regardless of the type of fertilizer used, it is important to moisten the soil before, during, and after applying the fertilizer.

🪴 Pot & Repot 2-3 years

To promote growth, repot blacksamson echinacea every 2-3 years in the spring. Choose a pot that is 2 inches wider to allow for root expansion. After repotting, place the plant in indirect sunlight and keep the soil consistently moist to aid its recovery and ensure it thrives.

Suggested frequency: 2-3 years
✂️ Pruning

Blacksamson echinacea is a plant with narrow leaves and vibrant purple flowers. To encourage growth, it is best to prune it in early to late spring and cut back any dead stems. After the plant flowers, remove the spent blooms to promote additional blooms. Regular pruning helps improve air circulation, reduces the risk of disease, and enhances the plant's overall vitality.

🌿 Propagating
🐛 Diseases & pets
☠️ Toxicity

Characteristics

Plant Type
Herb
Life Cycle
Perennial
Genus
Echinacea
Family
Asteraceae
Hardiness Zone
3-8
Mature Height
40 cm to 61 cm
Mature Spread
25 cm to 46 cm
Leaf Color
Green, Blue
Leaf Type
Deciduous
Flower Color
Pink, Purple, White, Brown, Orange
Flower Size
6.35 cm
Bloom Time
Summer
Planting Time
Autumn
Harvest Time
Late summer, Early fall, Mid fall

Tags (6)

Common Names (19)

ar سرخارگل،
en Purple coneflower
en Black-sampson echinacea
en Narrow-leaf echinacea
en Narrow-leaf purple-coneflower
en Kansas snakeroot
en Echinacea
en Black sampson
en Narrow-leaf-coneflower
en Narrowleaf purple coneflower
en Mo'ôhtávêheséeo'ôtse
en Blacksamson echinacea
en Blacksamson
en Narrow-leaved purple coneflower
en Narrow-leaved purple cone-flower
en Black-samson echinacea
en Prairie purple coneflower
en Echinacea Panama Red
en Coneflower