Comptonia peregrina - Sweet Fern
Comptonia peregrina - Sweet Fern

Sweet Fern

Comptonia peregrina

  • Despite its name, it is not a fern, but actually a deciduous shrub
  • Insignificant greenish flowers, both male and female on the same plant
  • Brown burrs contain edible nutlets
  • Medium-green leaves, resembling fern fronds, are brown in the fall
  • Mounding shrub, spreading by rhizomes
  • Bloom Time: Early summer

ZONE:
2

COLOUR:
Green

HEIGHT:
30-90 cm

SPREAD:
30-150 cm

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Growing and Maintenance Tips:


Although not a legume, comptonia is a nitrogen fixer. Grows best in full sun, tolerating some shade and thrives in dry, slightly acidic, sandy soil,  withstanding  poor, even salty soils. If given room, it will colonize (spreading by rhizomes). It is deer resistant.

Additional Notes about Sweet Fern:


Native to Ontario

Comptonia serves as a host plant for some species of butterflies and moths. Leaves have a pleasant fragrance, especially when crushed.