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Vernonia glauca |
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| Common name |
upland ironweed |
| Family |
asteraceae |
| Life cycle |
perennial |
| Flowers |
purple (late summer-fall) |
| Light |
sun |
| Cultural notes |
ordinary garden soil |
| Seed ripens | mid-October |
Upright native plant, with lots of purple flowers late in the season. In our garden it doesn't grow nearly as tall as New York ironweed. I transplanted a row of these in their second year, which set them back a bit, but they still bloomed. That year, my camera missed the height of their bloom, hence the lackluster pre-bloom picture at the right. That was several years ago, and I've seen them bloom aplenty since then, witness the photo at top (which shows how the plants tend to flop a bit when they reach full bloom). I grew this from seed labeled as "Vernonia angustifolia", but a friendly visitor to this site pointed out that that plant is supposed to have much narrower leaves than the one pictured here. Meanwhile, in the comment below Kathy points out that my plants resemble V. glauca, so that's what I'll be calling it unless/until I find out otherwise.
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We left this plant behind in our Pennsylvania garden (and wish it well); we don't grow it in Houston. Seed for this plant is included on my seed trade list About my plant portraits
PlantLinks to other web pages about Vernonia glauca
Visitors to this page have left the following comments| Kathy Mitchell | Jan 07, 2010 | Hi Rob: Your ironweed looks like Vernonia glauca, aka Upland Ironweed. It gets to about 2 ft. in containers in my nursery, and should be more drought-tolerant than V. noveboracensis. Very nice, but prone to mildew. Also had a bad case of rust last fall. Probably best with very good air circulation.
Kathy Mitchell
Conservation Horticulturist
NC Aquarium on Roanoke Island |
- Seed from HPS/MAG '01/'02 exchange. Baggy 70F (no G)
- Same seed as above. Sowed to pot set outside on Jan 3rd. Many seedlings by early May
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