How to grow yellow buttons
Overview
Yellow buttons (Chrysocephalum apiculatum) is a low-growing, spreading Australian native herb in the Asteraceae family. It is grown for its dense, silvery-green foliage and prolific, bright yellow button-like flower heads that appear from spring through autumn. This plant is a tough, drought-tolerant groundcover that thrives in poor soils and full sun.
Soil Preparation
Yellow buttons prefers a free-draining soil with a pH between 6.0 and 7.5. It thrives in sandy, loamy, or gravelly soils and tolerates poor, rocky ground. If planting in heavy clay, raise the bed or add gypsum and coarse sand to improve drainage. No rich organic amendments are needed; the plant is adapted to low-nutrient conditions.
Growing Guide
Plant yellow buttons in a position that receives at least 6 hours of direct sun daily, in well-drained soil. Space plants 30–40 cm apart for a dense groundcover. Dig a hole twice the width of the root ball, backfill with native soil, and water in well. Avoid planting in heavy clay or waterlogged areas; if soil is poor, add a little coarse sand or gravel to improve drainage. The best time to plant is in spring or early autumn, when the soil is warm and there is reliable rainfall.
Sowing
Sow seed directly into a seed-raising mix in spring or early autumn, barely covering the seed (1–2 mm deep). Germination takes 14–21 days at 20–25°C. Keep the mix moist but not wet. Prick out seedlings when they have 4–6 true leaves and plant into final position after the last frost. Direct sowing is possible in warm zones, but transplanting gives a more even result.
Care
Feed lightly in spring with a balanced slow-release native fertiliser (low phosphorus). Prune back by one-third after the main flowering flush to maintain a compact shape and encourage a second bloom. Remove spent flower heads if you wish to prevent self-seeding, but this is not essential for plant health.
Companion Planting
Yellow buttons pairs well with other dryland natives such as kangaroo paw (Anigozanthos), grevillea, and lomandra. It also suits coastal gardens alongside pigface (Carpobrotus) and saltbush (Atriplex). Avoid planting near moisture-loving plants like ferns or hydrangeas, as they will compete poorly with yellow buttons' low-water needs.
Common Pests & Risks
Aphids may occasionally cluster on new growth or flower buds, especially in humid weather. Control with a strong spray of water or apply a low-toxicity insecticidal soap. Powdery mildew can occur in poorly ventilated or damp positions; space plants adequately and avoid overhead watering to prevent it.
Troubleshooting
Yellow leaves: overwatering or poor drainage — reduce water and check soil. Leggy growth: too much shade or overfeeding — move to full sun and cut back fertiliser. Few flowers: lack of sun or old age — ensure 6+ hours sun and prune after flowering. Powdery mildew: humid, crowded conditions — improve air circulation and avoid wetting foliage. Aphids on new growth: treat with insecticidal soap or water blast.