A rose garden or rosarium is a garden or park, often open to the public, used to present and grow various types of garden roses or rose species, see Rose garden.
The cottage garden is a distinct style that uses informal design, traditional materials, dense plantings, and a mixture of ornamental and edible plants, see Cottage garden.
A walled garden is surrounded by high walls, usually intended to raise the ambient temperature within the garden by shielding it from winds and frost. See Walled garden.