Trigonella lilacina

Trigonella lilacina

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Taxonomy

Context

nativeRegion

Australia (widespread in southern and western regions, especially arid zones).

usdaZones

8–11 (estimated, based on climate tolerance).

companionPlants

Acacia, Eremophila, Stipa grasses

culturalUses

No significant cultural or economic uses known; sometimes used in revegetation or as native groundcover.

Care

LightPrefers full sun but can tolerate partial shade.

WateringModerate; water when soil is dry, but do not allow to become waterlogged.

SoilWell-drained, sandy or loamy soils with neutral to slightly alkaline pH.

FertilizerNot heavy feeders; occasional balanced fertilizer during growing season if soil is poor.

HumidityAdapted to arid and semi-arid conditions; does not require high humidity.

TemperatureThrives in warm climates; tolerant of some dryness and heat.

HabitAnnual herb with low-growing, spreading or ascending stems.

Mature SizeTypically 10–30 cm tall.

Growth RateFast-growing, matures within a season.

BloomingFlowers in spring to early summer; produces small, lilac to purple pea-flowers.

DormancySenesces (dies back) after seed set in late summer.

MethodsSeed

DifficultyEasy

Best SeasonSpring

PruningNot necessary; can trim to shape or remove spent stems after flowering.

RepottingRarely grown in pots; if so, repot annually to refresh soil.

Pests & DiseasesGenerally resistant; watch for aphids and root rot in poorly drained conditions.

ToxicityNot known to be toxic to humans or animals.

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