It's an epiphyllum, probably an epiphyllum hybrid (which typically contain other, similar genera, including Disocactus, Pseudorhipsalis and Selenicereus). These are commonly referred to as 'orchid cactus', but they are neither a true cactus nor an orchid :-) They are a semi-tropical succulent related to cactus that produces large, very showy flowers. They do produce an edible fruit (NOT a dragon fruit) but these are scarce on indoor plants. They are epiphytes, meaning they take advantage of other, larger plants - like trees - as a support system, like most tropical orchids do, and do not require soil in their native habitat. For home gardeners, they grow perfectly well in a good quality, fast draining potting mix. Unless you live in a semi-tropical climate or certainly a frost free zone (Z 10 or higher), these are not hardy outdoor. And they are pendant in habit, with those long branching structures cascading over the side of a container to often a significant length. One normally grows them in some sort of hanging basket structure or on a tall plant stand to show off the plant and its long branches to best effect. btw, the flowers form at the tips of these flattened leaves/branches so any pruning should be done cautiously. There are scads of websites on epis and if you do a bit of searching, they will provide all the growing info you need (rather than my repeating it all here!!). I find they are very easy to grow and will reward you with some gorgeous - if short-lived - flowers. I've got one setting flower buds now after being moved back indoors from its summer holiday location. Here's just one example of an epiphyllum website but do not stop with just one!! And be sure to check out any that show photo galleries of the blossoms - they are incredible!!

it depends on your soil ... does it drain properly .. if you dont know.. perk it ... https://duckduckgo.com/?q=perk+garden+soil&t=ffcm&iax=videos&ia=videos if bad non draining clay.. plant high ... if good drainage.. plant the root flare at soil surface ... water it in heavily at planting.. and dont water it again.. UNTIL IT NEEDS IT ... insert finger to find out ... in fall ... it might not need water until the heat starts in late spring.. but check every now and then ... i NEVER fert trees/shrubs.. etc.. here is a good primer : https://duckduckgo.com/?q=perk+garden+soil&t=ffcm&iax=videos&ia=videos bloom book is great.. but be careful with Brit books ... they are 2/3 of the way to the north pole.. yet can be z 7 to 9 [ the north atlantic drift]... so you have to interpret that to your situation ... sun intensity that far north is also very low comparatively speaking ... its hard to believe.. with 16 years under your fingernails.. you claim to be a newb ... lol ... bottom line.. its a tree... not a child.. plant it;. water properly.. and ignore it.. its not a child that need to be fed.. clothed or educated ... dont love it to death ... its not a water loving annual or perennial ... ken

Using your genus tip I think it might be Hypericum punctatum (Spotted St. John's-wort). Also looked at H. mutilum and H. boreale but the leaves seemed too small.

The discussion would be completely different if the machine wasn't still running except for an intermittent 'cut out' problem. It's life beyond this year is in question as well as every year beyond the next year after that. If anything this is an example of just how hard my job can be 'sometimes' and yet you guys come in here and fight me for it every day. Everything is a joke to you Ray? I just find it funny what people like to fight over. I view it as getting a customer by actually fixing something. That leads to it breaking again. The same thing can and does happen to new equipment all the time. Being able to fix things is a skill. I mentioned the 8 track tape. Who here has a record collection. Who here knows what a record is? The record went away because of long rewind times? ha, ha, ha.