Eden confirmed that he will join the firm on Monday to co-manage the £67 million CF Eden global multi-strategy fund alongside Chris Jaques.
Harris ran nine finds worth a combined £800 million at Henderson but left the firm February as it embarked on a cost cutting initiative following its acqusition of Gartmore.
Prior to this Harris was a fund manager at New Star for six years during which time he grew assets under his overall management from £400 million to £1.2 billion alongside co-manager Craig Heron.
The firm was later acquired by Henderson, with Harris moving across alongside Heron.
Harris commented: 'In treacherous markets preservation of capital becomes an even greater priority for investors and their advisers. We believe that there is a significant market gap for high quality multi-asset funds at the lower end of the investment risk spectrum.'
The news marks the latest in a series of high profile hires at Eden and follows the recruitment of ex Gartmore managers Leigh Himsworth and Dan Roberts earlier this year.
Himsworth last week launched the CF Eden UK Select Opportunities fund, seeded with £10 million, half provided externally and half from its wealth management parent Eden Financial.
Meanwhile Roberts is set to launch the CF Eden Global Equity Income fund shortly.
Commenting on the hire, Eden head of asset management Ed Rosengarten said: 'From the outset my objective has been to appoint fund managers noted for their performance excellence in key investment areas.
'Having accomplished this, Eden now has the opportunity to build on its existing investment capabilities and introduce new core funds, wholly relevant to satisfying the needs of the retail, intermediary and institutional markets.'