Not just about houses and furniture, there are plenty of wonderful bits of plant life at the Home and Garden Expo (opens at noon - watch here for a post publishing on the dot :D). This colorful lilypad is from Organica (Sim 8) and is an amazing 1 land impact. This is one of the RFL items.
Forest Feast (Sim 4 right across from my bus stop *wink*) has some lovely items including some spring grasses and old roses. I put them together for a wild garden look. Very pretty. Many items come in either copy or transfer versions, so you can choose the type of pack you need.
And a thumbs up to the garden build from Heart Botanicals (Sim 5) who has a lovely and calm forest getaway at the Expo; a perfect place to take a rest.