'It seems like every time we ask her, it's a different farm animal,' Garner, 38, said of her younger girl Seraphina, 21 months,
'My oldest daughter [Violet, 4] has a very clear idea, but it's contingent upon my younger daughter.'
The actress thinks it's time to get ready for the spooky holiday, telling People, 'Costumes are not ready in my house. Now, I'm realizing I need to at least get the orders in.'
The Valentine's Day star reflected on juggling her career and family life.
'No matter what, it is very tricky and difficult just to be a good parent at all,' Garner said. 'I have a lot of help. And for that I'm very grateful.