The ever popular dark blue flowered lavender. Trim back after first flowering to encourage fresh foliage and new flower heads. A foolproof way of preventing lavenders getting leggy and woody is to trim them back on the 8th of August (8th month) to 8"; the plants then have time to put out new foliage and a second flowering.
Lavenders require good drainage and preferably full sun.
Please ask for a quote for large numbers. Other sizes available are 9cm, 1L, 5L & 10L.