Species Seep Spring Arnica
yellow flowers with dark-yellow center, green leaves and yellow-green stems

Seep Spring Arnica

Arnica longifolia

Also Known As - Spearleaf Arnica,Long Leaf Arnica
Seep Spring Arnica (Arnica longifolia) is a native perennial herb which grows in a variety of habitats in western North America. It can be found in moist meadows, woodland openings, and along streambanks and roadsides. The plant has velvety light green stems and pointed, hairy leaves. Bright yellow flowers appear in the late spring to early summer and its strong scent often brings attention to the plant. Seep spring arnica grows easily and best in sunny areas and well-drained soils. It provides a good source of nectar for pollinators and is often used in native plant restoration projects.

Watering:

Minimal

Propagation:

Division,Root Cutting,Seed Propagation,Layering Propagation,Stem Propagation

Hardiness Zone:

Flowers:

Yellow Flowers

Sun:

Sun

Soil:

Clay, Sand

Leaf:

Yes

Leaf Color:

green

Growth Rate:

Low

Drought Tolerant:

Yes

Care Level:

Medium

watering

Water Seep Spring Arnica (Arnica longifolia) lightly every 7 to 10 days during active growth. During the winter months, water the plant enough to keep the soil from completely drying out. To prevent root rot, allow the soil to drain completely between waterings. During the growing season, fertilize the plant monthly with a well-balanced liquid fertilizer.

sunlight

Seep Spring Arnica requires full sun, at least 5-6 hours per day to thrive. The best time for the plant to receive sunlight is in the morning between 6 and 10 a.m. or at least before noon. Prolonged exposure to the sun in the afternoons can be harmful and should be avoided. If grown in partial shade, it tends to become leggy and weak. Moderate supplemental lighting may help strengthen its form.

pruning

Seep Spring Arnica should be pruned in late winter or early spring, when the plant is still dormant. Generally, only dead, damaged, or diseased branches should be pruned, as well as any large branches that are crossing or rubbing against 1 another. Light annual pruning is recommended, and scissors or hand shears should be used to cut the branches to remove excess growth. Pruning should be limited, as Seep Spring Arnica is a late bloomer and pruning too much in the wrong area may reduce flowering.

Season

Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Starts Flowering

Seep Spring Arnica typically starts flowering in April.