Missouri ironweed, scientifically known as Vernonia missurica, is a perennial plant native to North America. Leaf clusters attract bees and vibrant small flowers bloom mid to late summer. This plant variety provides aesthetic appeal and ecological benefits - Native landscapes benefit from pollinator friendly plants like this purple textured flower. The small seeds disperse and contribute to new growth after flowering fades.
Missouri ironweed
- Scientific name
- Vernonia missurica
Basic Information
- Asteraceae Family Vernonia Genus Missouri ironweed Species
- Asteraceae > Vernonia > Vernonia missurica
- 83%
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- Forb/herb
- Perennial
- Height
- 60cm ~ 120cm
- Flower Color
- Leaf Color
- Anthesis
- summer, fall
- Sunlight Exposure
Full Sun Long hours of sunlight from morning to afternoon Partial Shade A location in the shade of a tree or where either the morning or afternoon is shaded Full Shade A place where there is no direct sunlight
- Hardiness Zones
This is an indicator to know to which zone each plant can winter. Knowing the zone of each plant gives you an idea of the cold temperature resistance when grown in the ground without a roof. 2: -42.7 to -40.0 3: -39.9 to -34.4 4: -34.3 to -28.9 5: -28.8 to -23.3 6: -23.2 to -17.8 7: -17.7 to -12.2 8: -12.1 to -6.7 9: -6.6 to -1.1 10: -1.0 to 4.4 11: 4.5 to 10.0
- 3-9
- Cold resistance
- Good
- Heat resistance
- Good
- Habitat of origin
- United States
- Growth Rate
- Normal
What is Missouri ironweed (Vernonia missurica)?
What is Missouri ironweed (Vernonia missurica)
Flower meaning
The flower language typically associated to North American Missouri ironweed is: - Strength - Perseverance - Resilience An illustration is
Calendar of Missouri ironweed (Vernonia missurica)
Calendar
Missouri ironweed typically blooms from mid to late summer in the United States. Flowers look best in August. Blooming time is around 4-6 weeks. Removing dead flowers extends blooming. Grows well in full sun and drained soil, helping longer bloom time. Adequate water during dry spells ensures continuous flowers. Purple flowers attract pollinators, adding value to gardens and natural scenery. Late season blooms provide important food for butterflies and insects before fall starts.
How to grow Missouri ironweed (Vernonia missurica)
Watering
For Missouri ironweed, watering frequency should be moderate, approximately every 7-10 days during the growing season. This plant prefers well-draining soil, so ensure the soil is moist but not waterlogged. During dormant periods, reduce watering to every 2-3 weeks to prevent root disease. Check soil humidity by inserting a finger into the soil up to 2 inches; if it feels dry, it's time to water. Water in the morning to allow excess moisture to evaporate during the day, reducing the chance of fungus. Focus on watering near the plant base rather than wetting the leaves directly to help avoid leaf diseases.
Soil and Fertilizer
Missouri ironweed flourishes in well-drained soil with a pH between 6.0 and 7.5. It prefers nutrient-rich loam rich in organic matter. Feed Missouri ironweed in early spring with a balanced 10-10-10 fertilizer, following the manufacturer's instructions. Apply fertilizer again mid-summer if growth is stunted. Avoid over-fertilizing as it may lead to excessive leaf growth at the expense of flowers. Regularly check the plant’s growth and adjust fertilizer accordingly. Periodically inspect soil quality to ensure it remains well-drained and adjust as needed to maintain optimal conditions for Missouri ironweed.
Sunlight and Place
Missouri ironweed requires full sun and handles hot weather well. The plant may struggle in very cold winters, so some protection during freezing weather is beneficial. Ideal temperatures are between 70 to 90°F. Ensure adequate summer watering to prevent wilting. Apply mulch around the base in winter to protect roots from freezing. Well-draining soil is essential to avoid waterlogging. This is a robust plant that performs well with good sunlight and is adaptable to many soil types.
Advanced Information of Missouri ironweed (Vernonia missurica)
Pruning
Missouri ironweed benefits from pruning to maintain its shape, encourage new growth, and prevent overcrowding. Cut back the stems at the start of spring before new growth appears. Take away any dead or damaged parts to make the plant more healthy. After cutting, put mulch around the base of the plant to keep in moisture and stop weeds. Regular cutting will help Missouri ironweed live well and make colorful flowers during the season.
Planting and Harvest
Missouri ironweed thrives best when potted in well-draining soil with a pH level between 6.0 and 7.0. When planting ironweed, gently loosen its roots before placing the crown just above the soil. Water thoroughly after planting. Every couple of years in spring, repot the plant in a slightly larger container with fresh soil. If overgrown, trim it in early spring for new growth.
Propagation
Missouri ironweed can be propagated through seeds, division, and cuttings. It is recommended to sow seeds in the spring or fall. The seeds should be lightly covered and kept moist until they start to grow. In early spring, the plant can be divided into smaller sections with roots attached. New growth can be cut and placed in rooting hormones before being planted in soilless mix. Healthy leaves can be placed in a moist medium until roots develop. Using a combination of these methods is recommended to increase chances of successful propagation.
Pests and Diseases
Missouri ironweed is susceptible to various pests and diseases, including sucking insects and powdery fungus. Damage to leaves by these pests can often weaken the plant over time. Preventative measures like adequate air flow, careful watering technique, and frequent inspection can greatly help avoid issues. Withering seen in Missouri ironweed results from many possible reasons, including lack of nutrients in soil, problems in water amount or timing, or stress from weather conditions. Careful attention and quick response to signs of trouble promotes vigorous plant growth.
Habitat of Missouri ironweed (Vernonia missurica)
Habitat
Toxicity of Missouri ironweed (Vernonia missurica)
Health Benefits
- edible
- Inedible
- Toxic
- No toxicity
NO DATA
Toxic for dogs and cats
NO DATA
Q&A of Missouri ironweed (Vernonia missurica)
- Is there a recommended way to choose?
Missouri ironweed has divisions: 'Iron Butterfly' and 'Southern Cross.' 'Iron Butterfly' is compact height using deep purple flowers, right for lesser gardens. 'Southern Cross' is taller height bearing vibrant purple blooms, fine for bigger landscapes. When buying seeds, ensure they are fresh, plump, and free of mold. Choose seedlings with healthy green leaves and firm stems, avoiding those with signs of disease or insect damage. Seek professional suppliers specializing in native plants for the best quality. Prioritize purchasing Missouri ironweed seeds and seedlings from providers that support sustainable growth practices.
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- What are the potential medicinal uses and benefits of Missouri ironweed?
Missouri ironweed, scientifically known as Vernonia missurica, has been traditionally used in herbal medicine. Some studies suggest that the plant may have anticancer properties, although more research is needed. Its leaves and roots are often used in the preparation of herbal remedies. However, it's important to note that while Missouri ironweed has potential medicinal benefits, it should be used under the guidance of a healthcare professional.
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