Full sun with lots of water during the growing season. Full shade will make it into a nice, stemmy vine. Full sun makes a nice bushy vine. Infrequent watering makes brown tips on the leaflets.
A person in my town has an Asparagus plumosa growing on the north side of his two-story house (no sunlight at all). It has grown almost to the top, using any support it can. There is about two feet (2/3 m) of stem between each leaf; the leaves stand out at right angles to the stem. It's a very striking look.
While it can work its way under your siding, it doesn't seem to want to. The stems put out sharp spurs that support it against anything it can grow against.
A single plant will flower and make viable seeds. Seedlings are very slow growing until they are a year old or so, but then they really grow well. The flowers are very pretty, but...weird...for a day or two, you'd swear someone tossed diesel fuel on them. After that they don't smell like anything in particular.