Named for its habit of opening in the late afternoon, the four o’clock flower has trumpet-shaped flowers that are long-lasting, beautifully fragrant and heat tolerant. Yellow marbles is a mix of pure white and soft yellow streaked flowers on bushy plants up to 70cm high. Open pollinated, tuber-forming herbaceous perennial. Sow direct in moist, well-drained soil in Spring-Summer. Full sun to part shade. Sowing depth: 20mm
