Lepidium heterophyllum

Smith's pepperwort

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Taxonomy

Common Names

Smith's pepperwortdifferent-leaved pepperwort

Context

nativeRegion

Western and central Europe, particularly in calcareous and sandy soils.

usdaZones

4-9

companionPlants

Other dry, sun-loving meadow or rock garden species, Sedum, Echium vulgare

culturalUses

Sometimes employed in traditional medicine for its pungent, mustard-like leaves; otherwise considered primarily a wild edible or occasional weed.

Care

LightPrefers full sun but can tolerate partial shade.

WateringDrought-tolerant once established; water moderately during dry periods.

SoilAdapts to a wide range of soils, but prefers well-drained, sandy or loamy soils.

FertilizerGenerally does not require fertilization; over-fertilization can encourage weediness.

HumidityTolerant of a range of humidity conditions, typical of temperate climates.

TemperatureHardy in cool to warm temperate regions; tolerates light spring and autumn frosts.

HabitBasal rosette forming perennial herb with upright, slender, branched flowering stems.

Mature Size30-60 cm tall.

Growth RateModerate growth in favorable conditions; can become weedy and self-seed readily.

BloomingSmall white flowers, typically May to August.

DormancyDies back to rootstock in winter in colder climates.

MethodsSeed, Division

DifficultyEasy; seeds germinate readily and divisions establish quickly.

Best SeasonSpring or early autumn for both seed sowing and division.

PruningTrim spent flower stems to reduce self-seeding or control spread.

RepottingRarely necessary; only required if grown in containers.

Pests & DiseasesGenerally pest- and disease-resistant, though flea beetles and fungal spots may occasionally occur.

ToxicityNon-toxic to humans and pets, though greens are pungent and may cause mild irritation if eaten in quantity.

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