Jennifer Garner and her children are bee keepers in their spare time.

The 45-year-old actress has three kids, Violet, 12, Seraphina, nine, and five-year-old Samuel, with estranged husband Ben Affleck and the family love getting in touch with nature at their Los Angeles home.

Garner has a brood of chickens at her property but the family also have seven bee hives and the foursome regularly don bee suits to care for the honey-making insects.

Revealing her passion for bee-keeping, the 'Dallas Buyers Club' star said: ''It's super fun. It's like a living science experiment.''

Garner also has an extensive fruit and vegetable garden and her passion for growing organic food comes from her childhood because her mother grew the produce that the family ate.

Speaking to People Food, Garner explained: ''We have chickens but that's very LA so don't be too impressed. We grow tons of fruits and vegetables because here in Los Angeles you can just grow anything. I can't get over it. I just keep planting things ... My mom made all of our food. I would just be desperate for anything in a package. I was so envious of my friends and their Little Debbie oatmeal cakes and things like that. When we were hungry she would say, 'Go out to the garden, child, I bet those tomatoes are ready and grab yourself some sugar snap peas.' [Now], you know, you can't help it. That's what I do with my kids.''

Garner's love of natural produce has inspired her to co-found the organic baby food line Once Upon a Farm along with CEO John Foraker, and she admits it was her upbringing and her own three kids that made her want to bring the product to market.

She explained: ''When your kids are born, everything in your brain shifts. When I was pregnant with my first daughter, I thought I would never stop working, I would just get right back on set and she'd be raised in a trailer and I would never make her baby food and she'd be fine. I opened one of those jars and I was like, 'No! I'm never feeding this to an actual human.'

''The first thing I said to John is we can't just talk about feeding the top 10 per cent of kids, 50 per cent of kids, we have to talk about how to give that nutrition to the bottom half, the bottom rungs of the ladder. Part of my job is to educate moms what we're doing, who we are, where we are in the grocery store, [and] why we exist. The thing I'm the most passionate about is I really hope and aim for us having the first WIC farm fresh organic baby food.''