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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)
Other details: This plant is attractive to bees, butterflies and/or birds Drought-tolerant; suitable for xeriscaping Self-sows freely; deadhead if you do not want volunteer seedlings next season
Soil pH requirements: 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline)
Propagation Methods: From seed; winter sow in vented containers, coldframe or unheated greenhouse From seed; sow indoors before last frost From seed; direct sow after last frost
Seed Collecting: Collect seedhead/pod when flowers fade; allow to dry Allow pods to dry on plant; break open to collect seeds Allow seedheads to dry on plants; remove and collect seeds Properly cleaned, seed can be successfully stored
On Sep 7, 2006, rh3708 from westmoreland, TN (Zone 7a) wrote:
This hollyhock did well in my garden this year.
It was a nice addition to my collection , it stood out in the midst of all the pink hollyhocks i grow.
It's is a keeper in my garden.
Robbie
On Apr 24, 2005, KC3Lady from Overland Park, KS (Zone 6a) wrote:
I started mine from seed the summer before last. Last year, I learned how critical it can be to spray. The leaves were eaten very quickly and the remaining leaves were filled with leaf miner markings. I began spraying when I noticed the problem, but the plants looked bad all season. This year, I began spraying right from the start (which I plan to always do in the future). I've also applied a slow release fertilizer once or twice a year. I am happy to say that this year they are already about 3 feet tall, strong, lush and healthy. I can hardly wait for them to bloom!
On Mar 11, 2004, josey1127 from Belleville
() wrote:
your pictures are wonderful...my double whites are so amazing also...and such strong stocks...they never stop flowering until late fall...in area 5, ontario, canada
On Jul 8, 2003, tcfromky from Mercer, PA (Zone 5a) wrote:
A traditional favorite, hollyhocks grow well here in zone 5a and come in about 60 species of biennials and short-lived perennials. The 'Chater's Double' needs moderately fertile, well drained soil and prefers full sun.
Susceptible to hollyhock rust as well as bacterial and fungal leaf spots. Southern blight is common.
To reduce the chance of hollyhock rust, mulch with straw early in the season.
'Chater's Double' produces flowers with three or more whorls of petals and few or no stamens.
As annuals, sow seed at 55 degrees in late winter, or in situ in midspring. For biennials and perennials, sow seed in situ in midsummer. If required, transplant in early autumn, when 2 or 3 true leaves have developed.
Reference: The American Horticultural Society
A - Z Encyclopedia of Garden Plants
Christopher Brickell
Judith D. Zuk
Editors-in-Chief
Regional...
This plant has been said to grow in the following regions:
Hayward, California Ontario, California Rehoboth Beach, Delaware Hampton, Illinois Shawnee Mission, Kansas Blair, Nebraska Omaha, Nebraska Mercer, Pennsylvania Lafayette, Tennessee Rockwood, Tennessee Arlington, Texas Seattle, Washington