A beautiful woodland blue flowering ephemeral plant. Needs a shaded moist sites.
Pronunciation
(mer-TEN-si-ah)(ver-jin-I-ca)
Plant Type
All Plants, Wild Flowers
Hardiness Zone
3-9
Sunlight
shaded
Moisture
moist to wet, never dry
Soil & Site
cool, organic, moist
Flowers
blue to pink, 5 parted, corolla forms a trumpet, a small nodding cluster on a stalk (cyme), May to June
Leaves
basil leaves elliptic and long stalked, upper leaves nearly sessile, ephemeral plants that go dormant in the summer
Dimensions
forms clumps, 12-24 inches tall
Maintenance
Should be planted with something to fill in the space after it dies back.
Propagation
division, seeds
Native Site
Native to North America.
Misc Facts
Named for Franz Carl Mertens a 19th century botanist at Bremen.
Author's Notes
This as one of my favorite wildflowers. I have always seen it growing in moist to wet sites, with spring sun and summer shade. Shade becomes denser as the trees leaf out
Notes & Reference
#13-Growing Woodland Plants (Birdseye) #40-Herbaceous Ornamental Plants (Steven Stills), #65-North Woods Wildflowers (Ladd, #100-Wildflowers of Wisconsin and the Upper Midwest (Black and Judziewicz))