The aesthetics of the rose are hard to beat, so rose lookalike scented flowers is a win-win. Primula (primrose) are cheery rose-like flowers that are available in a technicolour-dream-coat of colours, complimenting their long-lasting, delicate fragrance.
These hardy plants like a sunny spot, so a bright windowsill is ideal. Be mindful of the temperature of the room as they do best in moderate to cool temperatures.
Much loved for its fragrance is Gardenia jasminoides (cape jasmine). The glossy dark green foliage contrasted with the pure white flowers is a strong choice with a strong scent. The sweet-smelling aroma will be your reward for caring for this fussy favourite.
Preferring an even temperature, Gardenias should be kept away from drafts all year round, so placing them on windowsills means they can get cold overnight. However, they do need at least half a day of direct light in winter, so you need to strike the perfect balance with your positioning.