Protected Series:
Zone: 5ZWANENBURG BLUE SPIDERWORT
Tradescantia 'Zwanenburg Blue' is a classic, long-lived perennial that is widely considered one of the finest blue-flowering cultivars of Spiderwort. It forms a neat, clump-forming mound of arching, grass-like foliage that remains a vibrant mid-green throughout the growing season. From early summer into midsummer, 'Zwanenburg Blue' produces a steady succession of deep, violet-blue, three-petaled flowers accented by bright yellow stamens. While each individual bloom lasts only for a single day, the plant is a prolific producer, ensuring an extended display that provides a rich, cool-toned contrast in the garden border.
'Zwanenburg Blue' is highly adaptable, performing well in both full sun and part shade, though it appreciates a bit of afternoon shade in the hottest months to prevent leaf scorch. It thrives in moist, fertile, well-drained soil and is even tolerant of temporary wet conditions, making it an excellent candidate for rain gardens or low-lying areas. Maintenance is simple; cutting the stems back hard after the initial bloom cycle finishes will keep the clump tidy and often encourage a fresh flush of foliage and a second round of flowers later in the season.
| PLANT | SIZE | TYPE | GALENA | ADD'L | DIG | SOON |
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To help this plant settle in and thrive, we recommend these standard planting practices: Plant in well-draining soil with a slightly acidic pH. Water regularly, but avoid overwatering. Provide bright, indirect light to full sun, depending on the location. Prune regularly to maintain shape and promote new growth.
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