Lady Jane Percy, the Duchess of Northumberland, will be handing over control of Alnwick Garden as she moves onto new business-ventures.
Since it opened in 2001, the garden has created three hundred new jobs and helped fund many other charitable and educational projects.
The Duchess has now set a date to finish the garden and is in the final stages of designing a play area with German specialists, as well as lighting project 'Sparkle'.
"I have decided I am going to have finished the Alnwick Garden by May 2015.
The difficult thing is finding the right person to hand it to.
It will have been a big part of my life. I have to set a date to finish it."
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Kerrie Gosney brings you Monday night's forecast
North East parents are most likely to raid their children's piggy banks to pay for things such as parking, takeaways and the tooth fairy.
Warmer air feeds in from the south as this week progresses. Temperatures into the high teens by the end of the week