To propagate Corkscrew Rush, the most effective method is through division, where you carefully separate a mature plant’s clumps into smaller sections, ensuring each section has adequate roots and shoots, and then replant them individually; this is best done in early spring when the plant is actively growing. 

Key points about propagating Corkscrew Rush through division:

Timing: Early spring is the ideal time to divide Corkscrew Rush. 

Select a healthy plant: Choose a mature, established Corkscrew Rush plant with multiple shoots. 

Dig up the plant: Carefully lift the entire plant from the ground, taking care not to damage the root system. 

Separate the clumps: Use a sharp knife or garden shears to divide the plant into smaller sections, making sure each division has a good root system and a few spirals of foliage. 

Repot the divisions: Plant the divided sections in fresh, moist soil at the same depth they were originally growing. 

Water thoroughly: Water the newly planted divisions well to help them establish. 

Important considerations:

Seed propagation: While possible, propagating Corkscrew Rush from seeds is less reliable and may not produce plants true to the variety. 

Avoid over-division: Don’t divide the plant into too small sections, as this can hinder their growth. 

Moist soil conditions: Corkscrew Rush thrives in consistently moist soil, so ensure proper watering after propagation.