Trachymene coerulea Lace Pink | Lace Flower | Seeds

Trachymene coerulea Lace Pink, also known as Didiscus, is a graceful annual with delicate, pale pink flower umbels. Each rounded flower head is made up of tiny blooms, creating a soft, lace-like texture that brings lightness to summer borders and bouquets.

Growing approximately 60 cm tall, Lace Pink produces abundant flowers on strong stems. It is an excellent choice for cutting gardens, romantic arrangements and cottage-style planting, combining a refined appearance with good vase performance.

Plant Information

Botanical Name: Trachymene coerulea
Synonym: Didiscus caeruleus
Common Name: Lace Flower
Series: Lace
Variety: Pink
Plant Type: Annual
Hybrid Status: Non-hybrid / open-pollinated
Flower Colour: Pale pink
Height: Approximately 60 cm
Flowering Season: July–September, depending on sowing time and climate
Position: Full sun
Soil: Fertile, well-drained
Spacing: 20–30 cm
Germination Time: Approximately 14–21 days
Uses: Cut flowers, bouquet filler, cottage gardens and mixed borders

Pale Pink Flowers for Bouquets & Borders

Lace Pink adds a delicate finishing touch to floral arrangements. Its airy umbels soften the outline of a bouquet and sit beautifully between larger flowers, adding texture without overwhelming the composition.

The pale pink colour combines naturally with white, cream, apricot, lavender and deeper rose shades. Grow it alongside other seasonal flowers for romantic bouquets, or plant small groups through a sunny border for a gentle, meadow-inspired effect.

Strong stems and good vase performance make this variety especially useful for gardeners who enjoy cutting flowers for the home.

Sowing & Germination

Sowing Indoors: Approximately 4–6 weeks before the last expected frost
Direct Sowing: After the last frost, once the soil has warmed
Seed Covering: Cover lightly with fine substrate
Germination Temperature: Approximately 20–22°C
Germination Time: 14–21 days

Sow into a fine, moist seed-starting substrate and cover lightly. Darkness can help germination, so avoid leaving the seeds exposed on the surface. Keep the substrate evenly moist, but never waterlogged.

For indoor sowing, use individual cells to minimise root disturbance. Provide good light after seedlings emerge and avoid keeping plants in small cells for too long.

Harden off gradually before planting outdoors after the risk of frost has passed. Handle the root ball gently when transplanting.

For direct sowing, prepare a fine seedbed in a sunny position. Sow in rows approximately 30 cm apart, then thin seedlings to 20–30 cm apart.

Growing Conditions & Care

Choose a sunny position with fertile, well-drained soil. Water regularly during establishment and dry spells, allowing excess water to drain freely.

Keep young plants free from weeds so they can develop without competition. In exposed cutting beds, light support or flower netting can help keep stems upright.

Remove faded flower heads to keep the planting tidy, and harvest regularly while plants continue producing fresh stems.

Flowering & Succession Sowing

Allow approximately 3–4 months from sowing to the first flowers, depending on temperature, sowing method and growing conditions.

For a longer picking season, sow small batches every 2–3 weeks while your local growing season allows enough time for plants to reach flowering.

Harvesting for the Vase

Cut stems when approximately half the tiny flowers in each umbel have opened. Harvest during the cooler part of the day and place stems promptly into clean water.

Remove any foliage below the waterline and use a clean vase. Lace Pink is especially beautiful as an airy filler in loose, natural arrangements and soft summer bouquets.

Trachymene Lace Pink brings delicate colour, strong cutting stems and lace-like texture to both the garden and the vase.