They love to grow in moisture retentive, well-drained soil that does not dry out, in summer.
As their colour suggests, they love to grow in full sun, but will also thrive in partial shade.
It spreads quickly and will soon need dividing. That is best done in the Spring so during the summer, make a note of where you want some next year and then, come Spring, you will know where to plant the divisions.
Enjoy the sunshine.