I would like to use miniature pirate bugs to control thrips and other potential pests in my greenhouse, they seem quite effective but I do not want the population to die off too much when there are not many pests left for them to eat.
They can sustain themselves on pollen so what would be some good year-round small flowering plants that could keep them going? High pollen production would mean I wouldn't need as many but being pretty or edible would be other advantages.