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Hardiness: USDA Zone 3a: to -39.9 °C (-40 °F) USDA Zone 3b: to -37.2 °C (-35 °F) USDA Zone 4a: to -34.4 °C (-30 °F) 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: All parts of plant are poisonous if ingested
Bloom Color: Bright Yellow
Bloom Time: Mid Spring
Foliage: Grown for foliage Evergreen Variegated Chartreuse/Yellow Smooth-Textured
Other details: Requires consistently moist soil; do not let dry out between waterings May be a noxious weed or invasive
Soil pH requirements: 5.6 to 6.0 (acidic) 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline) 7.9 to 8.5 (alkaline)
Propagation Methods: By dividing the rootball From seed; direct sow after last frost
Seed Collecting: Allow pods to dry on plant; break open to collect seeds
On Feb 15, 2006, soulgardenlove from Marietta, GA (Zone 7b) wrote:
I had already read the negative reviews of this plant when I decided to take my chances and put it in the garden this past fall. I do like the color and it is evergreen (or Lime green anyway)... However, I was just reading "The passion for Gardening" by Ken Druse and on page 107 he mentions this plant by name as a "problem", and he "lost several plants that the Ranuculus had overrun". Well, if this wasn't a last chance wake-up call, I don't know what it will take. I will dig this up and hopefully get it all out... I'm tempted to keep some in pots, but don't know if it will reseed and still cause a problem.
Top contender for a "Creeping Crud" award. I was given some of this as a gift. Oh lordie lordie lordie, talk about a gift that goes on giving. I think... not entirely sure, that I may have gotten the last of it ripped out of the ground this year but then again one never knows and all it takes is one missed piece for this to go on giving. And, shade didn't seem to slow it down.
On Dec 22, 2004, victorgardener from Lower Hudson Valley, NY (Zone 6b) wrote:
If you're looking for a fast spreading, colorful, weed smothering ground cover to go from full sun to full shade, this is it. It has not been the thug for me that it has reportedly been for others. Makes a great carpet. Color is more golden in the sun.
On Nov 6, 2004, lmelling from Ithaca, NY (Zone 5b) wrote:
Another one of those invasive plants that once in the garden, is virtually impossible to get out. Each spring I start weeding one of the wet spots in my garden and try to eradicate this plant. Two weeks later it's back. It pops up everywhere it's the hardest to get out - right in the middle of bulb plantings, in hosta, etc. The flowers are pretty, but when not-where-they-re-supposed-to-be, can be a scourge. That's why the negative rating.
Regional...
This plant has been said to grow in the following regions:
Guilford, Connecticut Marietta, Georgia Machesney Park, Illinois Minneapolis, Minnesota Saint Paul, Minnesota Ithaca, New York Newark, Ohio Coopersburg, Pennsylvania Lexington, Virginia Onalaska, Washington