Four O'Clock plants thrive in all zones, blooming all summer long. Four O'Clock thrive in ordinary soil in full sun or partial shade, sending up numerous volunteer seedlings every year (even in cold parts of the country.)
Four O'Clock Mix Seeds may be sown directly into the garden in the spring in warm areas. In other areas with a late spring, start the Four O'Clock seeds indoors about eight weeks before the final frost date for transplanting.
The seedlings may be set in the garden at about the same time you would plant tomatoes. Allow about 12 inches between plants. Four O'Clock roots are tuberous and can be divided in early spring. Some gardeners will store the tubers indoors over the winter and then plant again in the spring.
USDA Zones: 8 - 10
Height: 18 - 36 inches
Bloom Season: Summer
Bloom Color: Mix
Environment: Full sun to partial shade
Soil Type: Well-drained, pH 6.2 - 7.2
Deer Resistant: Yes
Temperature: 65 - 75F
Average Germ Time: 10 - 14 days
Light Required: Yes
Depth: 1/4 inch
Sowing Rate: 1 pound per 1,000 square feet or 2 seeds per plant