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)
Sun Exposure: Sun to Partial Shade
Danger: All parts of plant are poisonous if ingested
Bloom Color: Bright Yellow
Bloom Time: Mid Spring Late Spring/Early Summer
Other details: This plant is attractive to bees, butterflies and/or birds Average Water Needs; Water regularly; do not overwater
Propagation Methods: From seed; direct sow outdoors in fall From seed; winter sow in vented containers, coldframe or unheated greenhouse From seed; stratify if sowing indoors From seed; sow indoors before last frost Scarify seed before sowing
On Apr 23, 2012, Ariesca from Lillooet, BC (Zone 6b) wrote:
Little Leo popped up last spring in our new home. It's just about to bloom again (April-end). We are zone 8a wet Pacific climate.
It is a little treasure, because it appears to be trouble-free and there is not much else in bloom yet. I will divide and move it around to go with tulips, perhaps mauve/purple rock plants, early rhodos...
On Aug 10, 2011, anelson from Birchwood, WI (Zone 3b) wrote:
This wonderful plant sends up its yellow blooms when nothing else is blooming yet and makes it possible to believe that spring will indeed come. I was puzzled to see it listed as zone 4b on this site because so many are growing it in colder zones. I do not give it any special protection and it comes up reliably every year.
On Mar 29, 2008, Mountaindave from Port Orchard, WA wrote:
Jeepers what a perfect little plant! Its out there as I write in late March in 35 degree snowy weather, blooming its little heart out amongst the daffodils. And it goes until fall? If so, I'm planting 100 of them from seed. March color problem solved!
I have successfully grown leopard's bane in Calgary (zone 3) and Saskatoon (zone 2b). We cover them with a mulch of leaves in the fall, and they have come back every spring. I currently have two plants, which are both under "part sun" conditions - although one is more shaded than the other. They both do well -- over 40 blooms on the one plant this spring!
On Jun 19, 2005, sweetutopia from Uxbridge(TORONTO) Canada wrote:
I purchased 3 tiny leopard's Bane plants last year. It has grown amazingly well. Full bloom. It seems to have grown to it's maximum height
Do I cut the flower heads off or do I cut it back. I live an hour north east of Toronto in zone 5.
Any comments would be appreciated.
On Jun 12, 2004, JJBS from Grand Blanc, MI (Zone 5b) wrote:
Little Leo has been growing in our garden for five years. It started out from a 3 inch pot, and now the clump is about 18 inches around. It is growing in clay, in what was semi-shade but the tree blew down, so is now in full sun. It blooms reliably every year and is among the earliest of the perennials here, often snowed on. The leaves are attractive even after the daisy like blooms are gone. We will be dividing it this fall.
On Aug 31, 2001, smiln32 from Oklahoma City, OK (Zone 7a) wrote:
Easily grown in average, medium wet, well-drained soil in full sun to part shade. Prefers moist, humusy soils in full sun in the cooler areas of its range, but needs some afternoon shade in hot, humid southern climates. Not reliably winter hardy throughout all of Zone 5, so it is best grown in a protected location with a winter mulch therein. Shallow roots also benefit from a summer mulch which will help keep them cool.
Soil must not dry out while plant is actively growing.
Divide in spring or fall. Sow seed indoors in late winter or early spring.
This plant has been said to grow in the following regions:
, Juneau, Alaska Old Lyme, Connecticut Downers Grove, Illinois Olathe, Kansas Lincolnville, Maine Marlborough, Massachusetts Grand Blanc, Michigan Madison, Mississippi Big Timber, Montana Laurel, Montana Bedford, New Hampshire Elba, New York Coshocton, Ohio Portland, Oregon Butler, Pennsylvania Laflin, Pennsylvania Norristown, Pennsylvania Austin, Texas East Port Orchard, Washington Millwood, Washington Olympia, Washington Seattle, Washington Birchwood, Wisconsin Menasha, Wisconsin Milwaukee, Wisconsin