Posted: 05/06/2013 at 14:06
Herbs need a lot of sunlight and very airy soil. If yours is not sandy or alkaline,
add grits. Don´t worry about rendering the soil poor, herbs don´t mind; they just
loathe wet feet! Many herbs, once happy, will become invasive. And what´s worth,
they will try and kill more vulnerable neighbouring plants or herbs. I have a small
patch with lemon balm, pennyroyal and golden chamomile: when there were no
boundaries, the second killed the third, and then it was killed by the first! Now I
edged them with bricks in an irregular pattern (to make it less boring than myself;
can´t post pictures, sorry) and added sage, marjoram and coriander (these are not
troublesome, but coriander needs successive sowing).
Here´s a simple sketch (the empty spaces are taken by carrots and lettuce; the
red lines are bricks):