A common, medium to tall growing native prairie plant. A member of the mint family.
Plant Type
All Plants, Wild Flowers
Hardiness Zone
cold hardy to atleast zone #5
Sunlight
refers full, tolerates some shade
Moisture
average
Soil & Site
dry to moist
Flowers
The pale lavender flowers form a dense rounded head on the top of the stem. The tubular corollas are inside of a whorl of leafy bracts. Flying insects that can reach the nectar deep in the floral tubes pollinates it. Blooms July and August
Leaves
opposite leaves that are sharply toothed, scented foliage from the oil of Beaumont
Stems
square erect, hairy
Roots
fibrous
Dimensions
Grows up to 5 feet, spreads by rhizomes and can form dense clumps. Needs competition or drier soils to control the spread. The center tends to die out.
Maintenance
Will develop powdery mildew late in the summer. At this time cut the plant back. It will quickly regrow.
Propagation
seeds, division
Misc Facts
Named after Nicolas Monardes, a 16th century Spanish physician and horticulturist. Bergamont tea is made from this plant. This drink has many medicinal uses. Fistulosa means "full of pipes". referring to the tubular flower parts.
Author's Notes
In the prairies that I visit this is a common plant around southeastern Wisconsin USA.
Notes & Reference
#09-The Prairie Garden (J. Robert Smith with Beatrice Smith), #14-Hedge maids and Fairy Candles (Jack Sanders), #55-The Garden Book for Wisconsin (Melinda Myers)