Sage

Sometimes known as 'East Friesland', 'Ostfriesland' is a lovely variety of this clump-forming perennial, producing spikes of violet-blue from summer through to autumn. Grow it in well-drained soil in full sun. Protect plants from excessive winter wet and shelter from cold, drying winds. In colder gardens, it is well worth taking a few cuttings in late summer and early autumn to overwinter indoors. The Royal Horticultural Society has given it the Award of Garden Merit (AGM).

Looks good with:

Salvia officinalis 'Purpurascens'
Santolina chamaecyparissus 'Lemon Queen'