Spacing: 15-18 in. (38-45 cm) 18-24 in. (45-60 cm)
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)
I have problems with snails and caterpillars eating my hollyhocks. I don't kill any bugs in my yard so I just try to get things that aren't affected by bugs. But with hollyhocks, I just remove the snails when I see them on the plant and they tend to eat just the leaves; the flowers are still beautiful. With the caterpillars, it's kind of a "glass half full" deal. On the one hand, they eat the leaves and spin their cocoons inside the leaves (and sometimes the buds) but, on the plus side, you get butterflies. Sometimes, I collect the caterpillars and bring them inside in a jar to watch them turn into butterflies. Then I release them outside and it makes the damage they do to my hollyhocks worth it.
On Aug 6, 2008, DaddyNature from Atlanta, GA wrote:
Absolutely beautiful blooms...and easy to grown. Mine didn't bloom the first year but wowed me this year. :-D BTW, the seeds are very hearty and require little work -- just drop in a pot with moist soil and "viola"!
On Jul 3, 2008, ladychroe from Bridgewater, NJ wrote:
These are beautiful. I had mine in clay soil, 6 hours of sun a day, no additional water and they seemed very happy. I grew them from seed that I scattered on the ground in early fall the year before. Too bad I only had red and pink sprout, I would have liked to see the other colors.
I did have to tie some to the plants to a chain-link fence because they started to bend. The flowers are very full and heavy. Plant them in the back because the low foliage gets ratty by the end of the year. They will self-seed unless you deadhead.
On Aug 11, 2007, Opoetree from Oak View, CA wrote:
I have grown these hollyhocks for about forty years. I would save the seeds from year to year, and then plant them along my garage in Shafter, California. Unfortunately, sometimes a gopher would find the roots and eat my plants from the bottom. I also planted them in Riverside, California, behind the apartment building I was living in. Now, they come up here and there and wherever they want to...I enjoy that! I have also seen them growing near a farmhouse on one of the Channel Islands off the coast of Ventura and Santa Barbara. Bees love them...I do, too!
This plant has been said to grow in the following regions:
Baywood-los Osos, California Grass Valley, California Oak View, California Watertown, Connecticut Atlanta, Georgia Braselton, Georgia Jesup, Georgia Chicago, Illinois Indianapolis, Indiana Pinconning, Michigan Greeley, Nebraska Bridgewater, New Jersey Mahopac, New York Candler, North Carolina Mountain View, North Carolina Blue Ash, Ohio East Norriton, Pennsylvania Hillsville, Virginia