Campanula lactiflora aka Milky Bellflower

Campanula lactiflora, also known as the milky bellflower, is a medium-sized herbaceous perennial native to Turkey and the Caucasus. It grows up to 1.2 m (3 ft 11 in) tall and has narrow, toothed leaves measuring 5–12 cm (2–5 in) in length. During the summer, it produces large conical clusters of open, star-shaped flowers in white or pale blue. This plant can self-seed under favorable conditions. There are also cultivated varieties with different colors, such as 'Alba' (white), 'Favourite' (lilac), 'Loddon Anna' (pale pink), and 'Prichard's Variety' (violet blue), which have received the Royal Horticultural Society's Award of Garden Merit. As a clump forming herbaceous perennial, the milky bellflower sends up tall upright stems with lance-shaped foliage. It blooms with milky pale lilac bell-shaped flowers, providing a long display of flowers throughout the summer. This plant is easy to grow but dislikes wet winters. When grown indoors as a rare houseplant, it thrives with regular watering and prefers to be placed less than 1 foot from a window, receiving long-lasting, direct light. It requires well-draining soil and does not typically need additional fertilizers if repotted each time it doubles in size.