No cat should be deprived of this! Their reaction to the aromatic silver grey foliage is fascinating. Flower spikes of violet spotted white.

Sow spring to autumn in good free draining seed compost, just covering the seed with compost. Germination usually takes 7-21 days at 16-20C (60-70F). The seed can also be sown in spring where it is to flower in a well raked moist seed bed.

When the seedlings are large enough to handle transplant into 8cm (3in) pots, grow cool and finally plant out 30cm (12in) apart into a sunny spot in free draining soil.

Overwinter autumn sown plants in a well ventilated coldframe and plant out in spring.