A system for building a reconfigurable trellis includes at least one slidable pole connector configured to slide along a pole having either a circular or rectangular cross-section. The slidable pole connector includes a first portion configured to slide along a first pole and a second portion extending perpendicularly from the first portion and configured to receive an end of a second pole. The first portion may be in the form of a sleeve, which may be unitary or may include two detachably connected parts. A tightening mechanism may be provided to secure the first portion against the first pole and to prevent further sliding of the first portion when the connector is in a desired position. Several slidable pole connectors may be used with one another and with strand or rope connectors to secure a plurality of vertical poles, horizontal poles, and ropes, cables, strings, or or wires to one another in a variety of adjustable configurations.
