Hardiness: 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: Full Sun Sun to Partial Shade
Bloom Color: Pale Yellow Bright Yellow
Bloom Time: Mid Summer Blooms repeatedly
Other details: This plant is attractive to bees, butterflies and/or birds
Soil pH requirements: 5.1 to 5.5 (strongly acidic) 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)
Patent Information: Non-patented
Propagation Methods: By dividing the rootball
Seed Collecting: Allow seedheads to dry on plants; remove and collect seeds
On Apr 8, 2013, nataliesager from North Laurel, MD wrote:
I love this plant - but it very rarely comes back the following summer in my garden. It did the first few years, but then stopped. And since then - I keep buying new plants every summer and starting over. I am in zone 7 - Baltimore-Washington corridor. What am I doing wrong?
On Oct 20, 2010, annakins from Aberdeen, SD wrote:
This is the 3rd time I've tried growing this plant. Each year it has not come back. This year it came back and had a 3 foot spread. Bloomed all summer long. Very striking with Max Frei geranium or blue belladonna delphinium.
On Jul 7, 2010, kczsweetie from central, IL (Zone 5a) wrote:
What a great perennial! Mine has really fluorished in it's second year. Low maintenance, and flowers non-stop. Mine are in full/part sun. Hasn't spread at all for me, which is what I wanted, and retains it's delicate-looking globe form all summer. I just love the pale lemon color and dainty leaves.
Quickly becoming one of my absolute favorite plants.
On Jul 8, 2009, littlelamb from Virginia Beach, VA (Zone 8b) wrote:
This is a wonderful plant to have in any garden. It's tough, drought-tolerant, can handle humidity pretty well and can handle alot of sun. At dusk, the flowers seem to glow due to their pale yellow color. I moved one of my plants this year, and still have a wonderful flush of flowers. It's pretty low care so it's a plant to have if you really don't like to spend alot of time in the garden on those hot and humid days.
On Nov 5, 2005, carrielamont from Euless, TX (Zone 8a) wrote:
This plant spreads almost infinitely. We have to cut it back every year because it's only allotted a small spot! But it's another Old Faithful - a reliable prolific bloomer. If you like yellow, go for it - in fact, I'll send you some.
July 2010 OK, our entire yard is accented in yellow now, and I am hating the color. It spread not only by a massive underground root system but by seed. Those ominous ferny fronds, and the obnoxious "cheery" yellow flowers .... grrrr. Let's just say it has escaped cultivation.
On Aug 10, 2005, ADKSpirit from Lake Placid, NY (Zone 4a) wrote:
This is a tough little plant. I didn't get all my plants in the ground last year, because I didn't have all my flower beds done. Those that didn't go in the ground spent the winter in plastic greenhouse pots, above ground, as protected as could be. Due to some funky weather we had, not all of them made it, but this little guy made it through a very a-typical Adirondack mountain winter.
On Jun 8, 2004, Gayle0000 from Bloomington, IL wrote:
Zone 5b/Central IL: Excellent perennial! Mine grow profusely in full sun, clay soil. I don't water mine due to the clay soil retaining more moisture. No need for fertilizer or soil ammendments for me. Blooms open around June 1 here, and doesn't stop until September. I sheared some & deadheaded some for 1 season. With shearing, I lost my blooms for a couple weeks. Deadheading didn't make a change. I just leave mine alone, and have heavy blooms all season. Leave foliage on for winter and cut back dead foliage in the spring.
I notice the new growth is more heavy on the north, or most shaded base of the clumps, so I make sure my division placements are such that they will spread to the direction toward the shade. This phenomena happens in all 7 of my clumps. Not invasive. I've divided all times of the season, even in the middle of July when you shouldn't, with no problems. Easy to grow plant. --Gayle
On Jun 1, 2004, tamm0449 from Medway, OH (Zone 5a) wrote:
I enjoyed reading the synopsis on the Moonbeam plant. I bought the seeds for this plant from Martha Stewart. I must have watered the seeds too much and only one seed sprouted so much to my impatience I can not wait to see this plant grow and show it's true beauty in full bloom. How long must I wait for it to bloom? Does it bloom the first year or must I wait another year, also how wide and tall does this plant grow? Thank you for so much information on one of my favorite plants and all of the friendly people who are so willing to inform others of their love and knowledge of the plant kingdom.
On May 31, 2004, uofagirl from Orrville, OH (Zone 6a) wrote:
In zone 5.5/6 this is not a perenial, but more a tender perennial. Does not do as well the second year as the first. Requires constant deadheading. Otherwise, very pretty delicate yellow blooms and fine foliage.
Excellent plant! Manageable for most landscapes. Butterflies love it! Nice, feathery foliage and gorgeous greenish-yellow flowers. (Reminds me of a yellow highlighter pen!)Flowers continuously from June to frost.
This plant has been said to grow in the following regions:
, Phoenix, Arizona Gravette, Arkansas Bayview, California Dublin, California Martinez, California Colorado Springs, Colorado (2 reports) Edgewater, Colorado Lakeside, Colorado Parker, Colorado East Canaan, Connecticut Torrington, Connecticut Woodstock, Georgia Bellevue, Illinois Bloomington, Illinois Hampton, Illinois Lake In The Hills, Illinois Mount Prospect, Illinois Park City, Illinois Rockford, Illinois Coatesville, Indiana Homecroft, Indiana Oak Park, Indiana Des Moines, Iowa Olathe, Kansas Barbourville, Kentucky Hebron, Kentucky La Grange, Kentucky Salvisa, Kentucky Springfield, Kentucky Bar Harbor, Maine Corinna, Maine Easton, Maryland La Plata, Maryland North Laurel, Maryland Arlington, Massachusetts Milton, Massachusetts Detroit, Michigan Niles, Michigan Owosso, Michigan Plainwell, Michigan Arden Hills, Minnesota Coates, Minnesota St Cloud, Minnesota Florence, Mississippi Florissant, Missouri Independence, Missouri Lincoln, Nebraska Reno, Nevada Red Bank, New Jersey Albuquerque, New Mexico Alden, New York Baxter Estates, New York Cayuga Heights, New York Hilton, New York Himrod, New York Kew Gardens, New York Kinderhook, New York Lake Placid, New York Mahopac, New York Westfield, New York Fuquay-varina, North Carolina Raleigh, North Carolina Bucyrus, Ohio Cambridge, Ohio Cincinnati, Ohio Highland Heights, Ohio New Miami, Ohio Salem, Ohio Baker City, Oregon Beaverton, Oregon Bend, Oregon Deschutes River Woods, Oregon Portland, Oregon Ashley, Pennsylvania Brookhaven, Pennsylvania Johnsonburg, Pennsylvania Milford, Pennsylvania Penn Hills, Pennsylvania Pittsburgh, Pennsylvania Troy, Pennsylvania West Goshen, Pennsylvania Lesslie, South Carolina Aberdeen, South Dakota Forest Hills, Tennessee Hendersonville, Tennessee Knoxville, Tennessee Brazoria, Texas Fort Worth, Texas Hurst, Texas Rowlett, Texas San Antonio, Texas Falls Church, Virginia Leesburg, Virginia Linden, Virginia Manassas, Virginia Norfolk, Virginia Virginia Beach, Virginia West Springfield, Virginia Port Townsend, Washington Vancouver, Washington (2 reports) Appleton, Wisconsin Ellsworth, Wisconsin Milwaukee, Wisconsin