All-American Rose Garden, Rose garden at University of Southern Mississippi, Hattiesburg, United States.

The All-American Rose Garden is a rose garden on the campus of the University of Southern Mississippi in Hattiesburg, Mississippi. It holds 750 patented rose varieties, mostly modern hybrid tea and grandiflora roses, and is one of two All-America Rose Selections gardens in the state.

The Hattiesburg Area Rose Society created the garden in 1972 on the initiative of William Wicht, its first president, and it was officially inaugurated in 1974. A monument beside the garden honors Wicht's efforts. It is one of two All-America Rose Selections gardens in Mississippi.

The garden serves as a testing ground where growers evaluate new rose varieties and develop improved plants. You can observe how different hybrids perform and which ones might become tomorrow's garden favorites.

The garden lies on the Southern Miss campus on Hardy Street in Hattiesburg and is open every day from dawn to dusk, with no admission fee. Cutting a rose carries a fine of up to 500 dollars if caught. Peak bloom falls in late spring and summer, so plan a visit then for the fullest display.

The site holds around 800 different rose plants, making it one of the largest collections of its kind in southern Mississippi. This concentration allows visitors to observe rare and newly developed varieties all in one location.