Serradula gigantea, Vernonia gigantea
TALL IRONWEED
SKU: 2097-25
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Vernonia gigantea, also known as giant ironweed, or tall ironweed, is a species of perennial plant found in United States and Canada. The plant is native to the eastern United States, north to New York state and Ontario, and southwest to Texas. The plants are up to 2.1 metres, 7' tall. The flowers open from July to September and are purple in colour. The plants can be found growing in moist soils along roadsides, and are common in meadows and open woodlands. Ironweed are very attractive to many pollinators!
Type: Hardy perennial
Hardiness zones: 5-9
Height: 5', 150cm
Note: Ornamental use only. These seeds and/or plants are poisonous.
Sow just under the surface of the soil and water in. Leave them at room temperature for 4 weeks. This helps break the phytohormones which inhibit germination. They will not grow yet. Then a cooling period is required. Cover them with plastic and place in a fridge for 6 weeks. Be sure they stay moist. After the cold stratification period they are then brought back to a cool room (15-18C, 59-68F) for them to germinate. Germination can be erratic, generally 30-90 days after the warming period, though some can take longer.
Serradula gigantea, Vernonia gigantea
TALL IRONWEED
SKU: 2097-25
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Vernonia gigantea, also known as giant ironweed, or tall ironweed, is a species of perennial plant found in United States and Canada. The plant is native to the eastern United States, north to New York state and Ontario, and southwest to Texas. The plants are up to 2.1 metres, 7' tall. The flowers open from July to September and are purple in colour. The plants can be found growing in moist soils along roadsides, and are common in meadows and open woodlands. Ironweed are very attractive to many pollinators!
Type: Hardy perennial
Hardiness zones: 5-9
Height: 5', 150cm
Note: Ornamental use only. These seeds and/or plants are poisonous.
Sow just under the surface of the soil and water in. Leave them at room temperature for 4 weeks. This helps break the phytohormones which inhibit germination. They will not grow yet. Then a cooling period is required. Cover them with plastic and place in a fridge for 6 weeks. Be sure they stay moist. After the cold stratification period they are then brought back to a cool room (15-18C, 59-68F) for them to germinate. Germination can be erratic, generally 30-90 days after the warming period, though some can take longer.
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