Sweet Fern

Blue Sky Nursery

$39.99
Title

Enhance your garden with the unique, textural charm of Sweetfern, a hardy native shrub that offers both visual intrigue and a delightful sensory experience. Its lustrous, deep olive-green foliage is finely notched and elongated, mimicking the delicate appearance of a fern but with the resilience of a woody shrub. When brushed against or crushed, the leaves release a sweet, spicy, and balsamic aroma that fills the air, while its graceful, mounded form provides a lush, exotic feel to naturalized borders and woodland edges.

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Plant Details

Mature Size:

2–5' H x 4–8' W

Zone:

2-6

Watering:

Low to Medium

Foliage Type:

Deciduous

Growth Rate:

Slow - Moderate

Light:

Full Sun/Part Sun

Plant Profile

Common Names:

Sweetfern, Sweet-fern, Bog Myrtle (historically), Meadow-fern

Scientific Name:

Comptonia peregrina

Type:

Ornamental Deciduous Shrub / Native Shrub

Growth Details:

  • Mature Size: Typically 2–4 feet tall with a spread of 4–8 feet.
  • Growth Habit: Upright, mounding, and spreading by underground rhizomes to form colonies.
  • Form: Dense, multi-stemmed, round-topped mound.
  • Growth Rate: Slow to moderate.
  • Longevity: Can live approximately 20 years.

Environmental Needs:

  • Exposure: Full sun to part shade; can handle full shade in some settings.
  • Soil Preferences: Thrives in sandy, gravelly, acidic, and well-drained soils.
  • Soil Tolerance: Highly tolerant of poor, infertile, or rocky soils, and salt spray.
  • Watering: Deep, regular watering in the first season; drought-tolerant once established.

Special Features:

Nitrogen-fixing, highly fragrant foliage, salt tolerant, wind-tolerant, deer and rabbit-resistant.

Care Guide

Ornamental & Landscape Value

Seasonal Interest:

  • Bloom: Inconspicuous yellowish-green catkins appearing from April to June.
  • Fall Colour: Foliage turns a subtle golden-brown to occasionally orange-red in high sun.
  • Bark/Fruit: Features distinctive greenish-brown, burr-like nutlets in summer.

Garden Value:

Excellent for erosion control and stabilizing slopes or embankments due to its colonizing nature. Ideal for native plant gardens, rain gardens, and low-fertility "hellstrips".

Wildlife & Human Value:

  • Wildlife Value: Larval host for the gray hairstreak butterfly and various moth species; provides cover for small mammals and nesting birds like the endangered Kirtland's Warbler.
  • Human Value: Leaves can be used to make an aromatic, earthy herbal tea. Historically used as a natural insect repellent or in traditional medicinal poultices.

Planting & Care Guide

Planting Considerations:

  • Best Time To Plant: Spring or Fall.
  • Spacing: Space 3–5 feet apart to allow for its spreading colony habit.
  • Location Tips: Choose a permanent location carefully as it does not transplant well once established.

Care:

  • Light Requirements: Performs best in full sun to partial shade.
  • Moisture Requirements: Prefers dry to average moisture; avoid standing water which can lead to plant death.
  • Maintenance & Fertilization: Low maintenance; generally does not require fertilizer as it fixes its own nitrogen. Prune in late winter once extreme cold has passed.

Tolerances:

Drought, poor soil, road salt, wind, and urban pollution.

Tips For Success:

Mulch to suppress weeds while young; once established, it will naturally out-compete most competition. Avoid moving established plants.

Fruit Profile