Abstract: Methods and apparatus may permit the propagation and distribution of plants, or merely storage and/or shipment of items, in a space efficient manner. Individual apparatus may be stacked in a rack system. Space between individual stacked apparatus may be varied to accommodate plants of various sizes and permit varying degrees of air flow. Individual apparatus may be collapsed into smaller units without removable hardware and with all components remaining connected at all times. Apparatus may be delivered in a fully assembled stated and returned in a state of reduced size, minimizing transportation costs and efficiently utilizing transportation resources.