I have a permanent residency visa, which was pretty easy to get, actually. I don't ever have to go back to Canada unless I want to, and in nearly 4 years, I haven't wanted to.
If you want to stay here on tourist visas, which are free for Canadians, you can have up to 3 months at a time in Ecuador for a total of 6 out of any year - what you do is go to Colombia for a day when your visa expires, then come back in for the next 3 months.
The growing season here is year-round, with different crops doing well at different times of the year. The area I live in, Ambato (check on a map - it's smack in the middle of the country) is a highland desert, and I can grow anything I used to grow in Canada here with absolutely no problems whatsoever - but no rush, either. I have indeterminate tomato vines that are now nearly 1 year old and still bearing tasty fruit, for example. In the highlands (cities of Ibarra, Quito, Latacunga, Ambato, Riobamba, Azogues, Cuenca, and Loja), the temperatures are what you'd associate with a Canadian summer. We have a season we call "winter" but what it amounts to is that it only goes up to 20 C during the day and it rains a bit more often.
It only snows on the very tippy tops of the volcanoes.
I've also lived on the edge of the Amazon jungle, which is considerably hotter and moister/more humid - there, you can grow anything you could in Canada, and also all of the tropical fruits (Banana, Papaya, Mango, Avocado, and a whole host of things you won't meet until you get there.)
The beaches, on the Pacific ocean, are absolutely stunning - these tend to be hot and dry. All of the country's export bananas are grown on the coastal floodplanes - so next time you eat a Chiquita with an Ecuador sticker, think about that. We have everything from black-sand and palm trees (beaches of Manabi), to white sand and coastal desert (beaches of Santa Elena) to white sand and palm trees (beaches of El Oro) to black sand and mangroves (beaches of Esmeraldas). And the food! Oh, don't get me started on the food. They do things with coconuts and seafood here that you wouldn't believe....
Coming full circle to Hibiscus trees, they're common on the boulevards here, and just about anybody who has garden space grows them outdoors.