The Northern Ireland youth international, who was also on the books of Premier League Burnley, has linked up with Boston Town on loan from National League North highfliers King's Lynn.
"I would just like to thank Kings Lynn Town and Stephen Cleeve for making this happen and wish them all the best in their bid for promotion this season," Poachers boss Gary Edgley said.
"Really pleased to be able to bring in a player of Harry’s calibre to the club.
"It’s definitely a boost for my players and the club in our tough run over the Christmas period.
"This is the fist time I will have worked with Limbo but he was at training this week and he has a real hunger to do well for us and to get back to the level he needs to be at.
"He will come straight into the squad for Tuesday's game against Oadby."
Former Boston Grammar School pupil Limb came through the Boston United academy before joining Wisbech at the start of the 2016-17 season.
He scored 22 goals in 40 games for the club and caught the eye of Burnley's youth set-up.
Limb made his debut for Northern Ireland under 19s in a 2-1 European Championship qualifer defeat against Poland in 2017.
Today's scheduled UCL Premier clash at Leicester Nirvana has been postponed.