Grow stronger, healthier plants with the Haxnicks Maxi Rootrainers, the largest Rootrainer system in the Haxnicks range. Designed for larger plants, shrubs, hedges, broadleaved trees and specimens that need a strong root system, these reusable propagation cells are ideal for establishing plants that will grow in dry, exposed or challenging conditions.The Maxi Rootrainers use innovative air pruning technology to encourage roots to grow straight down through the cell rather than becoming tangled or root bound. The grooved cell design guides roots towards the drainage hole, where the root tip is naturally air pruned. This encourages the development of a stronger network of fibrous side roots, helping plants absorb nutrients more efficiently and establish quickly after planting.By creating a healthy, structured root system, Maxi Rootrainers allow plants to achieve excellent growth with less growing medium compared with traditional pots. The improved root formation also makes transplanting easier, as the root plugs can be removed without the need to untangle or disturb the roots, reducing the risk of transplant shock and helping plants continue growing successfully.Each Maxi Rootrainer book opens easily, allowing you to inspect root development and remove individual plugs when plants are ready for planting. With 10 books containing 4 deep growing cells each, this system provides 40 extra large propagation cells for growing robust plants from seeds or cuttings.Please note that a propagating lid is not available for the Maxi Rootrainers.