My Mesclun Lettuce mix (which includes Pak Choi, Mizuna, Mibuna and Mustard) went to seed pretty quick in the hot weather but instead of pulling it I let it flower. These bright yellow flowers are from the Mizuna in the mix. The flower stalks are amazingly tall and stay upright. And they attract a wonderful amount of beneficial insects like hover flies, ladybirds, lacewings, bees and other pollinators.
Getting the beneficial insects into the kitchen garden is the difficult bit. Once they are here they seek out aphids, mealy bugs and mites by themselves. It can only be a good thing, right? And the yellow flowers add a great backdrop to the rows of Lettuces below.