Botanical Name: Penthorum sedoides
Bloom: Summer, but the pink seed pods late in the season are the thing.
Height: 60 cm
Conditions: Damp soil, light shade. Spreads by stolons in loose damp soil. Can tolerate standing water. Will thrive in full sun if soil is moist enough. Does not tolerate drought.
Ottawa Valley or Eastern Ontario seed source: Yes
Remarks: Bright colour late in the season is welcome.