As autumn arrives and temperatures begin to dip, gardeners in Plant Growing Zones 3-4 often face the dilemma of how to handle and protect their tomato harvest and sometimes the tomatoes have to be picked green.
In this blog post, I’ll share my simple method for ripening green tomatoes indoors; plus, I’ll guide you through the easiest way to preserve your bounty so you can enjoy the taste of summer, even during the chill of winter.
Want the inside scoop on more gardening tips? Get early access to all my blogs and exclusive content by signing up for my newsletter!
Why Frost Threatens Tomato Plants and Their Fruit
Frost temperatures can wreak havoc on tomato plants!
Tomatoes were initially discovered in the tropics and are very sensitive to cold weather.
When temperatures drop below 0°C (32°F), the water inside the tomato cells can freeze, causing the cells to rupture and leading to mushy, damaged fruit.
Frost severity also affects tomato plants, damaging leaves and stems, again, due to frozen water inside the cells that cause them to burst.
A light frost can nip some leaves, leaving them wilted and slowing plant growth but a severe frost can turn leaves dark green or black and cause them to collapse completely, effectively killing the plant.
Knowing that frost can come at any moment, many gardeners choose to harvest tomatoes early rather than risk losing the entire crop to a dip in weather below the freezing point.
Culinary Options for Green Tomatoes
Green tomatoes, with their distinctive, tangy flavour, are a versatile ingredient that can inspire a range of culinary delights.
If you are unfamiliar with the adaptability of green tomatoes, here are some possibilities:
1. Fried Green Tomatoes: A Southern classic! Slice them, dip in cornmeal, and fry until golden brown. Serve with a tangy remoulade for a delicious appetizer!
2. Green Tomato Relish: Chop them up and cook with onions, peppers, and spices to create a tangy relish that’s perfect on burgers or as a side.
3. Green Tomato Salsa: Blend green tomatoes with onions, cilantro, and jalapeños for a unique twist on traditional salsa. Great for chips or as a topping for tacos!
4. Pickled Green Tomatoes: Quick-pickling will add a crunchy, tangy flavour that makes a great addition to salads or charcuterie boards.
5. Roasted Green Tomatoes: Toss with olive oil, salt, and your favourite herbs, then roast until tender. A scrumptious addition to salads or pasta dishes!
6. Green Tomato Soup: Cook them down with onions, garlic, and stock for a creamy, flavorful soup. Add herbs and spices for a kick!
7. Sautéed Green Tomatoes: Quick and easy, just sauté slices in olive oil with some garlic for a simple yet flavourful side dish.
How to Ripen Green Tomatoes
If you’re among those who prefer the sweet juiciness of fully ripened tomatoes, this is what I do to ripen green tomatoes.
I lay them out in a single layer on a cardboard box or a tray lined with an old tea towel. The reason for a single layer is that pressure from stacked tomatoes could cause ripening fruit to leak and the cardboard or tea towels will protect surfaces from damage as they soak up any unexpected juices.
Green tomatoes ripen without a problem in either light or dark environments, so choose which is most convenient for you.
I collect and save tomatoes as they ripen to a deep red colour.
Want the inside scoop on more gardening tips? Get early access to all my blogs and exclusive content by signing up for my newsletter!
How to Freeze Tomatoes
Tomatoes can be dried and frozen, and they are safe to can without a pressure canner because their acid content prevents harmful bacterial growth.
Freezing tomatoes is a simple and easy process that can be done with confidence.
Once the tomatoes have ripened, I wash them and remove any tomatoes with defects because bruised and damaged tomatoes don’t store well, and they can cause other tomatoes to spoil.
I slice the ripened tomatoes using a very sharp knife, keeping the stem end intact so the layers don’t slide over one another.
I bag them in zipper-lock bags in convenient 2 or 4 cup quantities, squeezing out any excess air before sealing them.
Then, I label them, indicating how many cups are in each bag and the year they were harvested.
I place the bags in the freezer lying flat on a cookie sheet, and once they’re frozen, I organize them in an upright cardboard box for easy access.
So simple!
Enjoy Tomatoes Even Out of Season
Navigating the challenges of cool fall weather in planting zones 3-4 may mean that you need to harvest green tomatoes early, but it allows you to enjoy this versatile fruit in all its forms, and you can effectively ripen your tomatoes and take advantage of their versatility by freezing them for later use.
So, whether you enjoy them fresh, in a sauce, or preserved, remember that your tomato harvest can be enjoyed anytime. Embrace the changing seasons and make the most of your tomatoes!
More to Explore
- How to Grow the Best Tomatoes in Alberta
- Determinate vs Indeterminate Tomatoes: A Guide to Pruning
- 3 Strategies to Deal with Tomato Blossom End Rot
- How to Prune Tomato Plants in August
- What to Do with Tomato Suckers
- When to Plant a Successful Vegetable Garden in Alberta or any Other Zone 3-4 Growing Zone [+ Downloadable Chart]
