About
It produces clusters of small, white, unscented flowers arranged on upright stems from May to July, followed by characteristic flat, round seed pods resembling old pennies. An annual with an upright habit that grows between 30–60 cm in height. It has smooth, branching stems and spear-shaped leaves that emit a mild garlic-like scent when crushed.
About the genus
Thlaspi is a genus of plants encompassing species that may be herbaceous, shrubby, or woody. They are grown for their ornamental flowers, foliage, or fruit, and vary in hardiness and cultural requirements
Growing conditions
SunlightFull sun, Partial shade
Soil typeChalk, Clay, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained
AspectSouth-facing, West-facing
ExposureExposed, Sheltered
UK hardinessH5
Plant details
Plant typeAnnual Biennial
HabitClump forming
FoliageDeciduous
Height0.5-1 metres
Spread0-0.1 metre
Time to full height1 year
Suggested usesCottage and informal garden, Wildflower meadow, Wildlife gardens
FragranceFoliage
Care notes
CultivationThrives in disturbed soils like farmland, roadsides, and field margins. Prefers full sun and nutrient-rich, well-drained loam but tolerates sandy or clay soils. See Creating wildflower meadows for further advice
PruningNo pruning required
PropagationPropagate by seed, self seeds freely
Pest resistanceGenerally pest-free
Disease resistanceGenerally disease-free