RootMaker® containers, including RMII-32 propagation trays work on annuals, perennials, vegetables, etc. just as they do on woody plants. The more the root system is forced to branch the more the nutrient absorptive surface is increased, which in turn increases growth and overall plant health. Interestingly this has also increased both flower production and fruit production for same reason – more roots. Typically, plants grown in smooth round containers are taller and more slender and have fewer branches and flowers compared to those grown in RootMaker® containers.