Some pansies have a sweet scent. They are most fragrant at early morning and dusk. Avoid overhead watering, which keeps leaves wet, and over-watering. Aphids, spider mites and slugs are pests of pansies. For more information consult HGIC 2105, Pansy Problems .
Pansies thrive in cool weather.
They will bloom any time that the temperature is above freezing. Their peak bloom is in spring. They fade and should be discarded with the start of hot summer weather. Pansies grow best in a location that receives morning sun and has rich, well-draining organic soil. Add manure, leaf mold or compost to soil to increase organic content.