From Longman Dictionary of Contemporary Englishrockeryrock‧e‧ry /ˈrɒkəri $ ˈrɑː-/ noun (plural rockeries) [countable] British English DLGpart of a garden where there are rocks with small plants growing between them SYN rock garden
Examples from the Corpus
rockery• Finally, the surrounding ground on either side of the waterfall can be made into a rockery, thus completing the feature.• He almost laughs when he sees what it really is - a small lawn, with a rockery and kitchen garden beyond.• Below the well, a waterfall tumbled across an artificial rockery.• Nextdoor work's under way on a giant rockery.• They make ideal dwarf plants for a wide range of usages including rockeries and containers.• The freshly-dug earth was used to fill the old pond, which now forms a neat rockery around the patio. 