To propagate Fringe Cups (Tellima grandiflora), the most common methods are by seed or by dividing established plants, with seed propagation being the easiest option as they readily self-sow, while division is best done in early spring after the flowering period is finished; both methods prefer a partially shaded location with moist soil conditions.
Propagation by Seed:
Collect seeds: Allow the flowers to go to seed and collect them when they are mature and dry.
Sow seeds: Sow seeds directly in the garden in a prepared, well-drained soil in a partially shaded area, or start them indoors in pots with a seed-starting mix.
Germination: Keep the soil moist and expect germination within a few weeks.
Thinning: Once seedlings emerge, thin them to the desired spacing.
Propagation by Division:
Timing: Divide established Fringe Cup plants in early spring, just after flowering is complete.
Dig up plant: Carefully dig up the entire plant from the ground.
Separate divisions: Use a sharp knife to separate the plant into smaller sections, ensuring each division has healthy roots and shoots.
Repot divisions: Plant the divided sections in new locations with well-drained soil in partial shade.
Key points to remember about propagating Fringe Cups:
Best growing conditions: Fringe Cups thrive in partial shade with moist, well-drained soil.
Soil requirements: Use a humus-rich soil for optimal growth.
Watering needs: Keep the soil consistently moist, especially during hot weather.
Potential for self-seeding: Fringe Cups readily self-seed, so remove spent flower heads if you want to control their spread.