What to sow by season
Late spring
coriander, mustard, mizuna, radish, rocket, phacelia
Early summer
alyssum, Asian brassicas, borage, comfrey, coriander, dill, fennel, monarda, phacelia
Mid-summer
alyssum, Asian brassicas (eg, pak choi), borage, buckwheat, catmint, comfrey, dill, fennel, monarda, phacelia
Late summer
alyssum, borage, buckwheat, catmint, goldenrod, oregano, phacelia