Woolly biscuitroot (Lomatium lanatum)

Woolly biscuitroot

Lomatium lanatum

A resilient, woolly-haired perennial herb of the parsley family, native to the rocky slopes of the Pacific Northwest.

Prefers full sun and thrives in bright, open environments.
0.5/week
Moderate
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Plant Needs

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Sunlight Prefers full sun and thrives in bright, open environments.
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Watering Highly drought-tolerant once established; requires very little supplemental water.
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Temperature Extremely cold hardy, adapted to harsh mountain and high desert climates.
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Characteristics

  • Leaves: Basal, highly dissected and pinnately compound, covered in dense, soft, woolly (lanate) hairs giving a grayish-green appearance;
  • Flowers: Small, yellow to pale yellow, arranged in compound umbels typical of the Apiaceae family;
  • Stem: Short, often purplish at the base, densely pubescent;
  • Fruit: Schizocarp, flattened with lateral wings, glabrous or slightly hairy.
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Care Guide

Watering

Water sparingly during active growth in spring; allow soil to dry completely between waterings. Cease watering in late summer as it goes dormant.

Fertilization

Apply a very light, natural amendment if soil is completely barren, though generally unnecessary.. Adapted to nutrient-poor soils; excess fertilizer can harm the plant.

Crushed Eggshell Powder:Wash and dry eggshells thoroughly, crush them into a fine powder, and sprinkle lightly around the base in early spring to mimic the mineral-rich rocky soils of its native habitat. Avoid high-nitrogen household scraps.
Pruning
  • Remove spent flower stalks in mid-summer to tidy the plant's appearance;
  • Allow the basal foliage to die back naturally to return nutrients to the taproot;
  • Clear away dead debris in late winter before new spring growth emerges.
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: No known toxicity to cats per general botanical databases.

Humans: Generally considered non-toxic, though foraging wild Apiaceae is highly discouraged due to deadly look-alikes like poison hemlock.

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Garden Uses & Culture

Culture: N/A

Usage: - **Landscaping**: Excellent for rock gardens, alpine troughs, and xeriscaping; - **Ecological**: Provides crucial early-season nectar for native bees and pollinators in arid regions.