2003/865/EC: Commission Decision of 11 December 2003 setting out the arrangements for Community comparative trials and tests on propagating material of Pelargonium l'Hérit. and Hosta Tratt., Euphorbia pulcherrima Willd. ex Klotzsch and Rosa L. under Council Directive 98/56/EC (notified under document number C(2003) 4626)