Four O' Clock Seed - Mirabilis Jalapa Yellow Flower Seeds

Four O'Clock Seeds - Yellow

Flower Specifications

Season: Perennial

USDA Zones: 8 - 10

Height: 18 - 36 inches

Bloom Season: Spring and summer

Bloom Color: Yellow

Environment: Full sun to partial shade

Soil Type: Well-drained, pH 6.2 - 7.2

Deer Resistant: Yes

Latin Name: Mirabilis Jalapa

Planting Directions

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

Moisture: Keep seeds moist until germination

Plant Spacing: 12 - 24 inches

Four O'Clock (Mirabilis Jalapa Yellow) - Hummingbirds will visit the garden all summer long! This sweetly scented perennial grows easily from Mirabilis Jalapa flower seeds and the hummingbirds love it. The plants are leafy, shrub-like, multi-branched tender perennials that typically grow 18 - 36 inches tall and just as wide.

Caution: These flower seeds are poisonous.

Fragrant yellow blooms

The flowers are fragrant and to some people the fragrance is vanilla scented. The flowers are trumpet-shaped and are formed singly or in clusters.

yellow four o'clock flowers

Four O'Clock seed | yellow

How to grow

How To Grow Four O'Clock From Seed: Mirabilis Jalapa flower seeds may be sown directly into the garden in the spring in warm areas. In other areas with a late spring, start the flower seeds indoors about eight weeks before the final frost date for transplanting.

Four O'Clocks may be set in the garden at about the same time you would plant tomatoes. Allow about 12 inches between the plants. Mirabilis 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.

  • Sowing Rate: 1 pounds per 1,000 square feet or 2 seeds per plant
  • Average Germ Time: 10 - 14 days
  • Keep moist until germination
  • Attracts bees, butterflies and hummingbirds
  • Depth: 1/4 inch
four o'clock seeds yellow

Flower Specifications

The Four O'Clock flowers are about an inch across at the end and about two inches long. On a sunny day, the flowers open in the late afternoon and wilt the next morning. If it is cloudy, the flowers may be open all day long.

  • Height: 18 - 36 inches
  • USDA Zones: 8 - 10
  • Season: Perennial
  • Deer Resistant: Yes