Common Peppergrass (Lepidium densiflorum)

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Sunlight Full sun to partial sun; tolerates dry, nutrient-poor soils and hot summer conditions

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Watering Drought-tolerant; water only when the top 2–3 cm of soil is completely dry to avoid root rot

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Temperature Hardy to light frost; thrives in cool to warm summer temperatures

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Leaf: Basal rosette of oblong to spatulate leaves; stem leaves are linear and finely toothed
Flower: Tiny four-petaled white blooms in dense terminal racemes
Stem: Slender, branching upright stem with sparse fine hairs

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Watering

Water sparingly during active growth; allow soil to dry fully between waterings

Fertilization

Optional diluted balanced feed once monthly. No regular fertilization required; plant thrives in low-nutrient soils

Eggshell powder topdressing：Sprinkle a thin layer of crushed eggshell powder on soil surface; avoid direct contact with stems to prevent rot

Pruning

Deadhead spent blooms to encourage extended flowering and reduce self-seeding if desired
Trim back overgrown stems to maintain a compact, tidy habit
Remove faded foliage after flowering to clean up planting areas

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Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats; no reported adverse effects

Humans: No known toxic effects on humans; young leaves are edible in small quantities

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Culture: N/A

Usage: Edible young leaves used in salads; dried seed pods as a pepper substitute