Queensland’s Lockyer Valley is replanting more than 12,000 koala food trees in hopes of attracting koalas’ return to the region.

The new forest sits between healthy koala populations at Rosewood and Walloon but growing residential development on the lower end of the forest is putting pressure on environmental conservation.

Ipswich City Council Planning Officer John Young says there are already promising signs of return and the council expects this to continue as the trees grow, the canopy closes and ongoing wild dog management yields results.