Yellow Four O’Clocks are an eye-catching addition to any garden. They are often used as borders, but they grow large enough that they can be positioned like shrubs. They are even used in large containers to fill the container with flowers. Hundreds of yellow blooms can grow on each of these plants, making it an attention getter. The yellow blooms are small, about 1 inch across, but the sheer numbers of blooms on each plant can make them a dominant flower in any garden.
For the best results, plant yellow Four O’Clock seeds in an area with full sunlight. Once the last frost is over, the seeds will take 5-10 days to germinate. The soil should be kept moist during this period. Once the plant has become established, it will prefer dry soil. They require little care in order to grow and bloom. They resist many of the insects and diseases that can harm plants and they need little water. Fertilize them every month and they will thrive and bloom in warm summer evenings. The seeds are packaged and germination tested for the current year.
Blooms from July through September
Grows to a height of 18-36 inches
Plant seeds at a depth of 1/4 inch
Germination is in 5-10 days