There are lots of local gardens which participate in the Open Gardens scheme. There’s also a good number of National Trust houses and gardens in the area. Somerleyton House is within easy driving distance, while closer to home there are the formal gardens at Raveningham or you can walk or cycle past the huge gardens at Heveningham Hall (but unfortunately you can’t get any closer than this).  Redisham Hall Nurseries is definitely worth a visit if you are a keen(ish) gardener; it's a gentle 3 mile cycle or drive from Ivy Grange Farm and is in a beautiful setting on the Redisham Hall Estate - they've got a good range of plants for sale, amazing heated greenhouses you can poke your nose into and they have open days when you can explore the walled veg garden (even when the walled garden isn't open, you can peep in through the gateway).  Highly recommended for a visit!