I did a bit of research on frost. A light frost is when the temperature drops below zero, a hard frost means it stays down there for four hours or more. So zero is just on the cusp, but a bit more wind and a zero can drop a degree or two and goodbye tomatoes. There are also charts on-line with estimated first and last frost dates. Montreal, according to the Old Farmer's Almanac, should be frost free by May 3, and frost can start as early as October 7. To play it safe, we don't plant much before the third week of May, especially plants like peppers and tomatoes which are tropical and die if the temperature hits below zero. I don't remember a frost as early as October 7, but we usually have our first frost anywhere from mid October to early November.
After two days of putting blankets on my tomato cages, I realized that the temperature was not low enough to really worry, so I gave it up, and put away my well-aired sleeping bags and blankets before it poured rain on them. I have continued to pick likely looking green tomatoes to bring inside to ripen, but whatever is still green by Sunday will be thrown out. Josh proposed posting on Facebook offering anyone who wants a bucket of green tomatoes, but I nixed the idea. Seriously, who wants someone else's green tomatoes. The only people who make things with green tomatoes are serious gardeners who have learned that even green tomatoes may produce surprise volunteers all over next year's garden from compost and hate to throw anything away. Sounds like me. I figure if I got over my aversion to ripping out weeds (which I do with abandon now) and drowning slugs (which I don't do anymore thanks to Slug-be-gone!) I can learn to throw green tomatoes in the garbage. Alternately, I can throw them under my lilac trees and give the last remaining slugs a sour feast, and see what happens.
I have been trying unsuccessfully to keep the peppers going inside. A few seem like they may survive, though most are losing their leaves. At least the peppers are turning red. As I harvest the ripe ones, I am tossing the leafless stems into my compost and reusing the earth to plant my garlic.
I have also inherited Julie's very large pineapple sage plant for safekeeping indoors for the winter. I have had to do a lot of rearranging of my dining room to fit everything in, but so far we still have room to eat, even with guests.
This past weekend, despite a sudden drop in temperature, I finished off the tomatoes and took apart the the cages, put out compost and planted half of the garlic before I ran out of time. Days are getting shorter, and busier. To complicate matters, Josh has temporarily converted the garden shed into a heated, sealed, wood drying chamber as the next installment in building our kitchen (oiling and varnishing the kitchen cabinet drawers outside of the house, and sealed off all my gardening tools before I had the foresight to take them out. I have a rake which was left out, and some bamboo stakes which I used to dig a very thin trench for the garlic cloves. I felt very primitive. Once I got to breaking up the compost and carrying it around to where I was planting the garlic, I decided I needed better tools and borrowed a hoe from my neighbours.
I need to find the time to finish before it gets too cold. Last night we had our first hard frost and whatever is left in the garden now looks like when I leave lettuce at the back of the fridge. I expect to be able to pull out the dahlias, begonias and cannas within days to safeguard their roots (corms? tubers? rhizomes? not sure what is down there).