Mid-December Flowers

Despite the cold weather outside and sudden changes of temperatures  -10 ° C up to + 5 ° C, my indoor plants are doing well, and even some of them have begun blooming. Dracaena, dieffenbachia, cacti, Saintpaulia are growing well. Even the garden plants that had been moved to the city are healthy under special lamps that are on to increase a light day.

I bought Clivia few years ago and it has never bloomed before this December when to my surprise a spike appeared, several flowers have blossomed and there are more buds.

I learned that the Clivia usually blooms in a cool, bright place and I have before tried to make such conditions but it did not blossom and now ... the beautiful flowers opened for Christmas.

Schlumbergera is considered a very capricious home plant. Here we name it 'Decembrist' because it usually blooms in December. Another name is 'Christmas cactus', it wildly lives high up in the trees of rain forests and jungles. 
As a home plant it lacks light either it's too much, needs a certain temperature for flowering, a pot with the plant can not be moved when buds appear because the buds tend to twist towards the light, which can make them drop off. 

And you have to water it a bit, and so on. I have done all the necessary: reproduced the natural growing conditions, haven't moved the plant pot. And Schlumbergera has had buds and beautiful flowers have appeared. 

And finally the plant that is very thankful for little care, it's pelargonium, the variety 'Royal pelargonium'. Having been moved to the city it blossoms as mad, its velvet dark purple striped flowers appear time to time, it's a pleasure.

Do you grow these plants inside or outside? Do they bloom well every year?