Tradescantia (Andersoniana group) 'Zwanenburg Blue' [sold as Zwanenburg Blue Spiderwort] Zwanenburg Blue Spiderwort
Blue, violet-blue (Three-petaled flowers open in clusters from late spring through summer; individual flowers last about one day but are produced continuously)
Blue-green, green (Long, narrow, grass-like leaves emerge blue-green and mature to green; foliage may become less attractive in summer heat)
Green, reddish-green, brown (Fleshy, upright stems are green to reddish-green during the growing season and become brown as the plant dies back)
Green, brown (Small three-lobed seed capsules mature from green to brown; self-seeding can occur but is usually limited)
2-3 feet
1.5-2.5 feet
Adaptable to a range of soils but prefers fertile, moist soils; tolerates clay and short periods of drought once established.
The Andersoniana Group consists of garden hybrids derived primarily from North American Tradescantia species. Parent species are native mainly to the eastern and central United States.
