Spiderworts are underused perennials in our yards; we can still see some wild colonies of native spiderwort in the countryside, but even these wild forms should be present in our gardens because they are versatile perennials, valuable to pollinators, modest and adaptable, and have long flowering periods.
The cultivar ‘Osprey’ belongs to the virginiana group. It offers clumps of grassy leaves and big cool-white flowers with feathery violet-blue stamens. Suitable for many types of gardens and naturalizing. It is recommended to cut back the clump after the first big bloom to induce new leaf growth and late summer flowering.
Blooming Time: June/July, often re-blooms later in the summer/fall
Size: 18-24” high x up to 12-15’’ wide
USDA Zones: 4a to 9b
Culture: full sun to half-shade, most happy in fertile loamy soil with medium moisture, but is very adaptable to most soil types – sandy, clay soils (neutral, alkaline, acid). Surprisingly drought tolerant for shorter periods.
Moisture Needs: medium-dry, medium, medium-moist
Origin: This hybrid is phylogenetically situated within the series of Virginiae (virginiana group) = T. ohiensis × (T. subaspera × T. virginiana)
Deer/Rabbit Resistant: yes/yes
Attracts Butterflies or Pollinators: bees and butterflies
Attracts Hummingbirds: no
Pot Size: 3.5" x 4" perennial pot (1.22 pt/580 ml)
Plant Combinations: As Tradescantia touches both sunny and half shade (up to lighter shade) habitats, there are thousands of great perennial combinations for both. In a sunny border, plant it with perennials like Aquilegia, Geranium, Hemerocallis (daylily), Iris x germanica, Knautia macedonica, Monarda, Paeonia, some species of Nepeta (N. subsessilis, N. kubanica, even N. x faasenii), Salvia nemorosa, or Sedum telephium. In a half-shade spot it goes well with Amsonia, Heuchera, Geranium, Iris, early flowering woodland Phloxes like Phlox divaricata or non-native perennials like Brunnera, Bergenia, and Hosta. Pairs well with grasses and ferns, too.
Picture Copyright: US Perennials, LLC