How to plant
When to plant
Plant bare-root Platycodon in early to mid-spring once the soil has warmed and frost risk has passed. In mild climates, planting can also be done in early autumn so roots can establish before winter. Avoid planting in cold, waterlogged soil.
Where to plant
Choose a sunny or lightly shaded position. Platycodon thrives in borders, rock gardens and containers. Avoid deep shade, which reduces flowering. Select a stable planting spot—Platycodon dislikes being moved once mature.
Preparing the soil
Loosen soil to 20–25 cm deep and enrich with compost. Platycodon prefers well-drained, fertile soil. Improve heavy clay with grit or coarse sand; add organic matter to sandy soil to help retain moisture.
Preparing the plants
Soak bare-root plants in lukewarm water for 15–20 minutes to rehydrate roots. Handle gently—Platycodon roots are fleshy and can be fragile.
Planting the plants
Dig a hole large enough to spread the roots comfortably. Plant the crown level with the soil surface. Space plants 30–40 cm apart to allow for natural clumping. Firm the soil gently and water well.
After planting
Keep soil evenly moist while plants establish. Apply a light mulch around the base to retain moisture and suppress weeds, keeping mulch away from the crown.
During growth
Water during dry spells, especially in summer. Feed lightly with a balanced fertiliser in spring. Taller stems may need light staking in very windy sites. Remove spent flowers to encourage tidy growth.
After flowering / end of season
Allow foliage to die back naturally, then cut stems to ground level in late autumn. In cold climates, apply a thin winter mulch. Avoid disturbing the crown—Platycodon resents lifting or dividing.
Extra tips
Platycodon pairs beautifully with salvias, echinacea, grasses and compact shrubs. Mark planted spots—Platycodon emerges later than many perennials in spring.
