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Hardiness: USDA Zone 4b: to -31.6 °C (-25 °F) USDA Zone 5a: to -28.8 °C (-20 °F) USDA Zone 5b: to -26.1 °C (-15 °F) USDA Zone 6a: to -23.3 °C (-10 °F) USDA Zone 6b: to -20.5 °C (-5 °F) USDA Zone 7a: to -17.7 °C (0 °F) USDA Zone 7b: to -14.9 °C (5 °F) USDA Zone 8a: to -12.2 °C (10 °F) USDA Zone 8b: to -9.4 °C (15 °F) USDA Zone 9a: to -6.6 °C (20 °F) USDA Zone 9b: to -3.8 °C (25 °F)
Sun Exposure: Sun to Partial Shade
Danger: Plant has spines or sharp edges; use extreme caution when handling
Bloom Color: Bright Yellow
Bloom Time: Mid Spring Late Summer/Early Fall
Foliage: Deciduous
Other details: Average Water Needs; Water regularly; do not overwater
Soil pH requirements: 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral)
Patent Information: Non-patented
Propagation Methods: By dividing the rootball From softwood cuttings By simple layering
Seed Collecting: Allow seedheads to dry on plants; remove and collect seeds
On Oct 22, 2006, winging from Cincinnati, OH (Zone 6a) wrote:
I think this is a lovely shrub when in bloom, but I'm not nuts about the foliage. I'm probably biased about it, though, since it was a huge, out-of-control monster when we first moved into this home. Seriously out of control. It was about 8' X 6'. My husband "took it down", but it took some doing to deal with all the seedlings or perhaps re-growth from left-over roots that kept appearing.
So it seems to be quite easy to grow, at least in my zone (6a). I'd probably rate it positive for that aspect if I liked the plant better.
On Oct 21, 2006, jroot from Rockwood, ON (Zone 5a) wrote:
A really pretty plant, that grows well, here in Southern Ontario. However, the rabbits really like to chew on it during the winter, so it needs protections.
On Oct 30, 2004, lmelling from Ithaca, NY (Zone 5b) wrote:
Wonderful shrub with branches that stay green throughout the winter and add interest to the stark landscape. In spring the bush is covered over with yellow flowers.
This shrub prefers partial to full shade and well drained soil. I find that I need to prune the branches back after flowering each year to keep it neat. Don't prune late as you will cause it not to flower the next year (found that out the hard way).
I get a lot of comments from visitors who see this shrub in full bloom - really lovely!
On Mar 10, 2001, Terry from Murfreesboro, TN (Zone 7a) wrote:
Deciduous shrub forms dense mounds of slender green stems that are attractive even in the winter. Oval shaped leaves appear in time to provide a backdrop to bright yellow flowers covering the shrub in early spring.
Plant in well-draining soil amended with humus or compost. Fertilize in spring. Prune out a couple of the older shoots every winter to maintain its shape.
Regional...
This plant has been said to grow in the following regions:
Pensacola, Florida Woodstock, Georgia Peoria, Illinois Ewing, Kentucky Fallston, Maryland Dearborn, Michigan Absecon, New Jersey Ithaca, New York Selden, New York Raleigh, North Carolina Chesterland, Ohio Cincinnati, Ohio (2 reports) Columbus, Ohio Salem, Oregon Lexington, Virginia Norfolk, Virginia Seattle, Washington Spokane, Washington Buffalo, West Virginia Menasha, Wisconsin Porterfield, Wisconsin
2 vendors have this plant for sale.
