Johnsons\' Cat Grass (Avena Sativa) Seeds can be grown all year round and produce quick growing shoots that are beneficial to a cat\'s diet, especially if they\'re an indoors cat. Aiding digestion, this is a hardy annual that\'s incredibly easy to grow. A hardy annual. Sow indoors at any time of year. Average pack contains 25g of seed. Height 7.5cm. Warning:Seeds should not be eaten. Store out of reach of children and pets. Always read the instructions before use. Johnsons Cat Grass Avena Sativa Seeds