The majority of the insect nesting aid was designed for wild bees and solitary wasps.

Unlike honey bees, these species do not form colonies and take care of their nests alone (solitary). Various materials such as wood, clay, aerated concrete, bamboo and reed were used, as the species prefer different materials.

Different hole sizes provide suitable nesting opportunities for wild bees and solitary wasps of different sizes.

Wild bees are particularly important for pollinating early bloomers, as they hatch at temperatures as low as 15°C and can therefore start pollinating in early spring. Together with bumblebees and honeybees, they are the first insects that can be observed carrying out this important work.

Other insects such as woodlice, millipedes and sapsuckers also find a home in the many cracks and crevices of the insect wall. Spiders feel at home in dry hiding places, such as the slit box at the top right, and in winter other species, such as the useful lacewing, ladybugs or earwigs, also use the box for hibernation. A small pond with loamy soil has been created next to this wall so that the bees and wasps have clay to close off their brood chambers.