Hi Ruchi,

There are several plants that work great in rockeries. The direction of exposure will dictate plant selections for shade or sun but I am assuming you also need drought tolerant plantings.

The purple ground cover in the photo is red mother of thyme, Thymus serphyllum. It is a great drought resistant plant. Others that work in rockeries are.

Moss Phlox, Phlox subulata

Lithodora

Sedum Spectiblis 'brilliant and Autumn Joy'

Golden moss sedum, Sedum acre

Firefly Heather, Caluna vulgaris 'firefly'

Gold Yarrow, ACHILLEA 'GOLD PLATE

Sea thrift, ARMERIA MARITIMA

Alpine sandwort, ARENARIA OBTUSILOBA

Blanket flower,GAILLARDIA

Red hot poker,KNIPHOFIA 'ROYAL STANDARD'

Lavender, pretty much any one.

Dwarf mugo pine, PINUS MUGO 'SLOWMOUND'

Creeping rosemary, ROSMARINUS OFFICINALIS 'PROSTRATA'

Salvia, SALVIA SUPERBA 'BLUE HILLS'

Red mother of thyme, THYMUS SERPHYLLUM

Lambs ear, STACHYS BYZLANTINA

Yucca,YUCCA FILAMENTOSA 'COLOR GUARD'

These are just a few plants that work great in rockeries, are drought tolerant and stay small. I hope this helps and let me know how it goes.

Scott Lankford