Lemon Grass Oostindische - Xotica Collection. East-Indian Lemon Grass, also called Malabar Grass is heatloving and not frost resistant. Therefore it will be preferable to grow in pots and keep at temperatures above 10°C(50°F). From early spring until summer indoors, at 20°C min., in seed tray and prick-off in small pots. Enough seeds to sow 2 m².