TV
Rwx Features
The TV presenter was hospitalised in April, but BBC bosses initially claimed he would only be "taking a break" from the show.
However, following an extended break with his family it is believed the 52-year-old decided there was too much pressure working on the TV show.
In a statement, Don said: "I am proud to have led Gardeners' World for five years and have enjoyed every minute. I intend to make a full recovery so I am ready to tackle new projects."
A BBC spokesperson added: "Monty will be sorely missed. We wish him a speedy recovery and hope to work with him again."
Related Stories
Tube Talk
'Bedlam': On set for the new seriesTube Talk takes a trip to the Bedlam set and speaks with star Lacey Turner.
TV Interviews
'Mike and Molly' Reno Wilson Q&ADigital Spy chats to Reno Wilson about Mike and Molly's wedding and beyond.
TV Ratings
'The Apprentice' final hires nearly 7mEarlier, the BBC's coverage of the Diamond Jubilee entertains more than 10m.
TV Recaps
'Homeland' finale: Have your sayHomeland's incredible finale is reviewed by Digital Spy. Share your verdict.
