Many of the crops are ready to harvest during August and September, and it is a priority job to keep harvesting. Picking the veg, in a similar way to dead heading flowers, encourages continued fruiting and so a better yield. After all the hard work of growing the crop, to miss the moment when the beans, courgettes and salads are at their peak. The veg quickly go over if not picked regularly, every day or so.
If August is warm, damping down the greenhouse helps to control temperatures. After watering the greenhouse plants, finish off by watering the floor, which provides cooling by evaporation, and is best done in the morning to keep the greenhouse cool for the high daytime temperatures.
It is possible to get a second crop of broad beans, especially if the summer is good. In late July/early August, when the broad bean plant has finished, cut down the stem close to the ground about 15 cms near a growing point and give it a feed. On a good year it will re grow and produce a second, lighter smaller crop, but perfectly acceptable producing fresh broad beans in late summer/early autumn. Looking at the image left you can evidence of both old and new growth ( the leaves are a paler colour,) on the broad bean plants, the new growth being produced after the bean has been cut down to aid a second crop; more advice on growing broad beans.