Can the Living Leaves be planted out?

You can plant them out but as they are close to full  maturity anyway they will quickly reach the flowering stage (‘bolting’) and the flavour won’t be so good.  If they are kept in a container with plenty of light (not direct sunlight) and watered regularly they should last at least a week.  The Living Herbs we are trying out this summer can be planted out, either in pots or in a sheltered corner of your garden.