Barton's Bush, Remnant lowland forest in Trentham Memorial Park, Upper Hutt, New Zealand

Barton's Bush is a protected forest area within Trentham Memorial Park that contains over 100 native plant species including tawa, totara, matai, and kahikatea trees. Gravel paths and light fencing weave through the space to guide visitors while protecting the delicate undergrowth from damage.

Richard Barton bought 40 hectares in the upper Hutt Valley in 1841 and modelled his estate on Trentham in England, leaving part as native bush. His descendants began clearing the remaining bush in 1924; it was bought as a reserve only in 1950 for £26,000, half from a War Memorial subsidy.

Barton's Bush takes its name from Richard Barton, who settled here in 1841 and modelled his estate on Trentham in England, where he had been an estate supervisor. The forest is dominated by tawa, with tōtara, mataī and kahikatea also in the canopy.

Tracks through the bush have been gravelled and lightly fenced, keeping walkers and animals on the formed paths and off the undergrowth. The reserve sits inside Trentham Memorial Park in Upper Hutt, so access is on foot from the park.

During the 1940s the bush was logged: stumps show that over 100 tōtara were felled. It was also overrun by the pest plants Old Man's Beard and Wandering Jew, which a control programme has removed since 1980.