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How to Care for Spiderwort Plants

By Desirae Roy ; Updated September 21, 2017

A mounded, bushy plant with long, lance-shaped leaves and bright purplish-blue bossoms, the spiderwort looks a little like fireworks bursting out in your summer garden. Grown as a native plant in many areas of the country, the spiderwort is an easy to care for perennial friend that will delight you with plenty of show all season long.

Choose a location with full sun to part shade. Moist, well drained soil is preferred for spiderwort. Too much shade will result in a spindly, droopy plant. Full sun should prove the most conducive to flower production.

Prepare the soil like any perennial bed. Add up to 4 inches of organic compost and till with the soil to a depth of one foot. This provides nutrients and allows the plant to successfully establish roots.

Plant spiderworts 12 to 18 inches apart to allow for mature growth and air circulation. Cultivars may grow as tall as 2 feet, with shorter varieties at 12 inches in height.

Water after planting. Spiderworts are perfect for the carefree gardener, as overly moist soil is tolerated as well as drought by these hardy perennials.

Cut back foliage to soil level if it begins to look spent or go dormant. New growth and a possible second bloom cycle may be the reward. Cutting back spent blooms and seed pods will also prevent rapid spread of spiderworts through self seeding, a trait for which this perennial is infamous.


Things You Will Need

  • Spiderwort plants
  • Trowel
  • Organic compost


  • Spiderworts have curious little flowers that open in the morning and close in the heat of the day, only to bloom once and complete their life cycle. Fortunately, new blooms will open for several weeks after flowering begins.

About the Author


Desirae Roy began writing in 2009. After earning certification as an interpreter for the deaf, Roy earned a Bachelor of Arts in elementary education from Eastern Washington University. Part of her general studies included a botany course leading to a passion for the natural world.