Scirpus acutus (Hardstem Bullrush)

Hardstem Bullrush is an herbaceous perennial with an upright spreading habit of growth. Its medium texture blends into the garden but can always be balanced by a couple of finer or coarser plants for an effective composition.

This plant will require occasional maintenance and upkeep and is best cleaned up in early spring before it resumes active growth for the season.

Hardstem Bullrush has masses of beautiful clusters of tan flowers at the ends of the stems in late spring, which are most effective when planted in groupings. Its grassy leaves remain green in colour throughout the season. The green stems can be quite attractive.

Hardstem Bullrush will grow to be about 6 feet tall at maturity, with a spread of 4 feet. Its foliage tends to remain dense right to the ground, not requiring facer plants in front. It grows at a fast rate, and under ideal conditions can be expected to live for approximately 10 years. As an herbaceous perennial, this plant will usually die back to the crown each winter and will regrow from the base each spring. Be careful not to disturb the crown in late winter when it may not be readily seen!

This plant should only be grown in full sunlight. It prefers to grow in moist to wet soil and will even tolerate some standing water. It is not particular as to soil type or pH and is able to handle environmental salt. It is highly tolerant of urban pollution and will even thrive in inner city environments. This species is native to parts of North America. It can be propagated by multiplication of the underground bulbs.

Hardstem Bullrush is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. With its upright habit of growth, it is best suited for use as a 'thriller' in the 'spiller-thriller-filler' container combination; plant it near the center of the pot, surrounded by smaller plants and those that spill over the edges. It is even sizeable enough that it can be grown alone in a suitable container. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.