Thanks everyone! I am such an Austin addict that I have all of the above-mentioned DAs already growing in my garden, except for Carding Mill (which was also on my short list to order, I am a sucker for the apricots), and Happy Child. I am going to go with Harlow Carr because it does sound more compact and I like the disease-resistance touted for it. BS is an issue here but probably less so than for some in the south. If I spray 1-2 x monthly I can keep it at bay.

Thanks so much everyone! My mother-in-law moved into a senior center and didn't have room for the Christmas Cactus. She said she grew it from a start given to her by her former nanny. The nanny died about 1947, so that's one old plant. I'd really hate to kill the plant she's loved for so long. Thanks again for the links.

I ordered recently several fixtures from The Bright Spot. They were great, very easy to order from and have lots of nice things at reasonable prices, in fact couldn't beat their prices on what I ordered, either locally or other online sites! They also personally will email you right away if you send a question and some items have additional discounts, plus free shipping. Highly recommend them. The site is http://www.thebrightspot.com and I will try to put it in as a link below. Here is a link that might be useful: the bright spot

midnightsmum, it would be helpful to know what sort of plants you hope to overwinter and how many you have. I live on a farm in Alberta, and we built a new house several years ago, making good use of passive solar (orienting the house and planting trees to help keep the house cool in summer and warm in winter). We put in lots of large windows with wide window sills. In the dining room, we have nine windows on three walls (east, south, and west exposure) plus a garden door, and under the windows we have base cabinets under all the windows for storage, so I can fit a lot of plants there in the fall; the bougainvillea has bloomed for the past two springs in that location. In my bathroom, there are two large windows at the corner (east and south) over the corner tub, where I overwinter five citrus trees which continue to bloom and bear fruit through the winter. We also have a tower on one corner of the house (rather Victorian style) which has west, north, and eastern exposure and I was surprised when my hibiscus started blooming there this past April. I have a lot of geraniums that I overwinter and they bloom throughout the winter; my mother-in-law has me overwinter hers, and I keep them in our heated garage on a old kitchen table in front of the window (lots of windows in our garage too lol) and they bloom constantly through the winter; I know I should give them a rest but there is nothing cheerier in this part of the world in November or February than an entire tableful of blooms. We have a two-story house with basement and I have plants at almost every window on the first two floors (not the pantry or main floor bathroom). The plants range in size from a very small haworthia to a good-size monstera and a split-leaf philodendron. The main key to success in overwintering for me has been to bring them in sooner before the day length gets too short. I also make good use of the showers and the tub in my bathroom for the plants all winter, giving them all a rinse; the plants use the tub more than I do : ) . One shower has a detachable shower head, and it's so handy that I wish I had put them in all of the bathrooms I do have a heated free-standing greenhouse which I use from early May to late September. And I have a three-tier light cart I use in the spring for seed-starting; it's nearly 30-years old and I used to have it before I was married to grow tropicals in my city apartment. The only other recommendation I have if you intend to go ahead with an attached greenhouse is to talk to a company like BC Greenhouses, where my freestanding greenhouse is from. They talked me through all of our climate considerations for our location (wind, usual snow load, hail, etc) to help me choose the correct specs, inc roof slope, for my greenhouse. They generally have a sale every fall. https://www.bcgreenhouses.com/greenhouses/cross-country/home-attached-greenhouses/ Working with both an architect and a company like BC Greenhouses should get you the best living situation for people *and* plants.