Hardiness: 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) USDA Zone 10a: to -1.1 °C (30 °F) USDA Zone 10b: to 1.7 °C (35 °F) USDA Zone 11: above 4.5 °C (40 °F)
Sun Exposure: Full Sun
Danger: Seed is poisonous if ingested Parts of plant are poisonous if ingested
Bloom Color: Pink Red Bright Yellow White/Near White
Bloom Time: Mid Summer
Foliage: Grown for foliage Evergreen Herbaceous Smooth-Textured
Other details: May be a noxious weed or invasive 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)
On Nov 28, 2010, thegardengoddess from Keremeos, BC (Zone 6b) wrote:
Zone 6B - This variety is the 'Wow' plant in my gardens. It combines nicely with Amaranth Hopi Dye behind it. Yes, it produces a lot of seeds, but I don't find it invasive, I just move the seedlings. The foliage is clean and neat until blooms appear in July, the plants topped out at 4' this year, more like an annual shrub. Again, a two green thumbs up!
On Aug 27, 2007, Lily_love from Central, AL (Zone 7b) wrote:
It seem to be a herbacious perennial here in my zone. For the plant upon returning its second year and its performance, appear much bigger, stronger than the few scattered seedlings that I've observed. Not at all invasive in MHO, seedlings usually are found in close proximity of the parents plants, thus pulling up is an easy task, and sharing them with others, is a joy. This was given to me as a start; the tradition will continue; pass-a-long plants. (I assumed that this is 'Red Glow' since, the owner that passed this beauty to me didn't know its name). Bright orchid pink?
On Oct 18, 2005, frostweed from Josephine, Arlington, TX (Zone 8a) wrote:
My Red Glow Four O'clock developed by itself and is a mutation of all the other colors being crosspolinated by nature.
I have white, yellow, light pink, medium pink, fuchia, red, and varigated yellow with fuchia or red.
I think they are all beautiful, and their scent is amazing.
On Jan 16, 2005, LilyLover_UT from Ogden, UT (Zone 5b) wrote:
This is my favorite Four O'Clock. The gorgeous color reminds me of fruit punch, and the flowers stay open longer than other varieties I've tried.
It self-sows prolifically, but I don't consider it invasive. The seedlings are easy to pull up, and the plants are not always hardy here in zone 5, although they will survive the winter if planted in a warm location like the south side of the house.
On Jul 20, 2003, margu from Los Angeles, CA (Zone 9a) wrote:
I give this plant a neutral rating because, as beautiful and easy to grow as it is, it is VERY INVASIVE. It self-sows freely and spreads like wildfire. New plants literally sprout up overnight, and within 2 to 3 days are at least 7 inches high. It takes constant vigilance to keep it (barely) under control. But it is beautiful, and you can certainly fill up a lot of empty space very quickly! I "inherited" this plant with a new house, and now I spend more time weeding the 4 o'clocks then I do the weeds!
This plant has been said to grow in the following regions:
, (2 reports) Vincent, Alabama Bloomington, California Eureka, California Laguna West-lakeside, California Los Angeles, California Oak View, California San Diego, California De Bary, Florida Indian Harbour Beach, Florida Orange Springs, Florida Hawkinsville, Georgia Overland Park, Kansas Pineville, Louisiana Port Vincent, Louisiana Arlington, Massachusetts West Hattiesburg, Mississippi Henderson, Nevada Raleigh, North Carolina Council Hill, Oklahoma Brookings, Oregon Nyssa, Oregon Mercer, Pennsylvania Florence, South Carolina North Augusta, South Carolina Belle Meade, Tennessee Westmoreland, Tennessee Baytown, Texas Brazoria, Texas Dallas, Texas Dalworthington Gardens, Texas Deer Park, Texas Rowlett, Texas White Settlement, Texas Hildale, Utah Magna, Utah South Salt Lake, Utah Salem, Virginia Oroville, Washington Meadow Creek, West Virginia