Caryopteris 'Thetis' flowers late: from August to October. With its deep blue flowers 'Thetis' is a welcome addition to the Caryopteris range. 'Thetis' is perfect as a terrace or balcony plant. 'Thetis' becomes about 100 cm high and 60 cm wide. Likes a place in full sun in a fertile, well permeable soil. Hardy to -18 °C.