The striker believes Olivier Giroud's form has removed a big problem for Arsene Wenger.
Manager Arsene Wenger was widely criticised this season for failing to secure more than Petr Cech for his side, with the failure to buy a world-class striker the biggest bone of contention.
It hasn’t hindered them so far though, with Theo Walcott being used in the role and doing well, while Giroud has been in fine form in recent weeks.
He followed up his hattrick in the Champions League in midweek with a penalty against Aston Villa in their 2-0 win on Saturday, and Hartson says his form means Arsenal don’t need to sign a top striker now.
“For a long time Arsene Wenger was determined to play Theo Walcott through the middle, but injury let in Olivier Giroud and he has led the line so well,” he told BBC Sport.
“I don’t think he leaps like a Romelu Lukaku but he is brave and puts himself in there.”
“That is what Arsenal need – they don’t need a top striker now, with Giroud performing like this."
While Olivier Giroud has impressed in the role this season, there is no denying that Arsenal fans would like to see world-class striker come into the club.
Manchester City, who will most likely be the Gunners’ main rivals for the title this season, have on in Sergio Aguero, with the Argentine having proved his status among the world’s best before now.
If Arsenal had a centre forward of his calibre it would make them serious contenders on all fronts, an effect Giroud and Walcott don’t have.