Kris Jenner also tells PEOPLE she hopes her daughter "won't be stingy" with grandkids

By Michelle Ward
Updated August 12, 2011 07:30 PM
Credit: Denise Truscello/WireImage

Kim Kardashian‘s big day isn’t bringing out a bridezilla.

Even with her wedding to New Jersey Nets player Kris Humphries, 26, quickly approaching, the Keeping Up with The Kardashians star is staying cool as a cucumber, her mother tells PEOPLE.

“She s very calm,” says Kris Jenner of Kim, 30. “It’s just her personality. She knows what she wants and she’s very focused on the day and is just enjoying the process.”

Relaxed demeanor intact, Kardashian has been busy ironing out final details for her August 20 nuptials, including a whirlwind trip to New York for a final wedding dress fitting.

Wedding planning aside, Jenner is just happy her daughter has found the one.

“She’s doing great, and I think that any mom just feels happy when their child finds the person they want to be with for the rest of their lives,” says Jenner. “That’s a big step.”

So will the proud mom be hoping for grandchildren from the soon-to-be-newlyweds? “Definitely, absolutely,” says Jenner. “And they better not be stingy.”