The Tübinger-mix consists of 10 annual flowering plant species: borage (Borago officinalis), buckwheat (Fagopyrum esculentum), marigold (Calendula officinalis), white mustard (Sinapis alba), coriander (Coriandrum sativum), caraway (Carum carvi), centaurea jacea (Centaurea jacea), cheeseplant (Malva neglecta), dill (Anethum graveolens) and phacelia (Phacelia tanacetifolia) in different proportions.
They attract a diversity of flower-visiting insects, including the honey bee and many species of bumble bees. Sequential sowings provide nectar and pollen from early summer to late autumn and fill the gaps when food for pollinators becomes scarce. Different insect species are favoured by different sowing-dates and plant species.