Bindi Irwinisn’t wasting any time in planning her wedding.

She explained toGood Morning Americathat the all-important garment was actually a last-minute purchase.

“It’s really special.

Bindi Irwin

“Chandler was incredibly thoughtful when he chose it.

“That’s something that I really want to do.”

“The most beautiful surprise,” she wrote on July 24 ona picture of Powell popping the question.

Bindi Irwin

“Chandler and [my brother] Robert worked together to capture the moment I said ‘YES’.

We were in the gardens of Australia Zoo and it was beyond perfect.

While this description of their engagement is sweet, it doesn’t capture the entire picture.

Bindi Irwin and Chandler Powell

So it was the most beautiful and most terrifying moment of my life.”

As she and Powell toldGMA, the wedding will feature some of their favorite things.

“We may be setting some new trends for weddings from here on out,” she said.

Bindi Irwin and Chandler Powell

“That’s what makes a relationship so wonderful,” Irwin gushed.

“You have to marry your best friend.”

Bindi Irwin and Chandler Powell

Bindi Irwin