Walcott returned to Premier League action in the weekend as the Gunners downed Blackburn 4-0 after three consecutive 0-0 draws in the league.
Wenger hopes that the 20-year old can provide many more scoring opportunities.
"He made us a very good start and he became stronger and stronger," he said.
"He gives us something that is important as well when we play at home.
"He goes behind the defenders and creates room and he has a direct game. We need that, especially at home.
"It is important to have him back and he gives you something that can make a difference in any game."