Suokukka on pohjoisen pallonpuoliskon turvesoilla kasvava myrkyllinen varpu. Se on kanervakasveihin kuuluvan sukunsa ainoa laji.
It is a heath found across northern parts of the Northern Hemisphere.
Bog rosemary is only found in bogs in cold peat-accumulating areas.
It is a small shrub growing to 10-20 cm (rarely to 40 cm) tall with slender stems.
The leaves are evergreen, dark green above (purplish in winter) and white beneath with the leaf margins curled under.
The flowers are bell-shaped, white to pink, 5-8 mm long; flowering is in late spring to early summer.