The document discusses the history and characteristics of English landscape gardens. It notes that William Kent in the early 18th century began designing gardens to look like landscape paintings, establishing the English landscape garden style. Key elements of these gardens included rolling lawns, tree groves, ha-ha walls, grottos, and lakes with irregular edges. The gardens aimed to appreciate nature and replaced the more formal French styles. Sissinghurst Castle Garden is provided as a famous example that demonstrates these English garden ideals.