Extend Your Garden Season With These Techniques
With your garden prepped for winter, you may be ready to turn in and take a break from growing for a few months. But if you’re like me and the idea of the garden totally ending breaks your heart, there’s a few different ways we can extend our growing season and keep harvesting fresh food from the garden all year round. I’ll be using all of these methods in my own garden to grow cold loving crops while the snow falls.
How To Use Row Cover
There’s a good chance you have some plants already in the ground that can withstand cooler temperatures and give you harvests well into winter with a little planning. Plants in the brassica family for example have the ability to produce a type of natural anti-freeze that converts into sugars and makes the plants taste even better after a frost. But you can extend their life even further by utilizing frost covers which act as a cozy winter blanket and keep out the wind chill and moisture that causes the most damage to these cold hardy plants. These covers act as a shield against harsh frost, preserving the warmth around the plants and preventing frost damage. It's a simple yet effective measure to safeguard your garden and extend your harvest.
Benefits of Mulch
We aren’t the only ones who benefit from an extra blanket or two in the winter months. A layer of mulch such as wood chips, pine needles or straw around perennial plants acts as insulation, protecting their roots from extreme temperatures. It also helps retain moisture and suppresses weeds, contributing to the overall well-being of your garden beds during the winter months. A good rule of thumb is to use four to six inches of mulch around the plants - just don’t press the mulch up against the plant itself. We are insulating the roots, not the aboveground parts.
Using cold frames/cloches
A cold frame works by creating something like a mini-greenhouse, trapping warm air through solarization inside of the box and insulating the plants within from the worst that winter has to offer. We control the temperature inside of the cold frame with a simple vent - the hinged lid can be propped open with different sized sticks to allow excess heat to escape on warmer days, but for the most part in our deep New England winters the lid stays firmly shut until we trudge through the knee deep snow to harvest.
If you have the time and physical ability, building a cold frame yourself is absolutely the most economical solution. Purchasing one ready-made can cost you anywhere from $60-$500 and quality issues on the low end of that budget will prevent you from getting many years of use out of it. Meanwhile, if you build one yourself it can be done for far less than the low end of that range, and produce an end result that will be sturdy enough to continue providing shelter to your winter crop for years to come. While old windows can be fragile and prone to breaking, when they can be found for free I still find it a better option than a new piece of corrugated plexiglass.
Builing a Hoop House
Hoop houses are used by growers in all types of climates for many different reasons - but the main goal is climate control, whether that is to make the growing area colder using the artificial shade created or warmer by taking advantage of the insulating properties of the covered area to effectively move your grow zone south.
If you’ve never seen a hoop house before, you probably have and just didn’t realize it! The basic idea is that you form some sort of rounded roof structure using metal rods, cattle panel or pvc that bends down and is anchored to the ground and cover that with heavy duty greenhouse plastic that lets light in but keeps wind out and provides some insulation.
You can build your own greenhouse easily in an afternoon with just the help of one other person, and you don’t need any special skills or carpentry experience either. The hardest part is honestly just getting the cattle panel - they are huge, so unless you have a truck you’ll probably need to rent something or have them delivered. Click here for my full guide to build your own DIY cattle panel hoop house.
Cold Tolerant Plants
Of course, with any of these methods you still won’t create tropical conditions for your plants if you live in a colder climate. So it’s important to stick with plants that are known to tolerate temperatures down to about thirty degrees fahrenheit. Here’s a list of everything I’ll be growing this winter:
Gai Choy Mustard
This mustard matures in 40-60 days and grows anywhere from six to ten inches wide and ten to twelve inches tall. This is a head forming traditional Chinese mustard with a mild flavor when it’s young.
Bloomsdale Spinach
This is a dependable, open pollinated variety that matures in 28-45 days and grows about six to eight inches tall with dark green, thick and curly leaves. It’s a prolific grower with tender leaves and rich flavor.
Common Sorrel
This green has been popular in France and England for centuries but for some reason it isn’t as popular in the states. It matures in 60 days with bright green crinkled leaves that have a lemony spinach flavor.
Easter Egg Radish
This blend has red, white, pink purple and bi colored radishes that mature in just 30 days. Easter egg is a mild and crisp radish that forms small one inch globe shaped roots, so if you don’t like the spiciness of other radishes you may want to try this one.
French breakfast radish
These radishes are super mild - almost sweet and mature in 28 days. The root is scarlet with a white tip about 1 inch around and 2 or 3 inches long.
Spanish black radish
This is an extra large medium spicy radish that matures in 60-70 days with a black exterior and white interior. The globes are about 3-4 inches in diameter when mature. Since this is a winter radish it needs shortening day length and cool temps to mature, so this one gets planted later than the other radish varieties I’m growing.
Bok Choy Choko
I can’t live without this for my stir fries and this variety is so good and tender when harvested when it’s only about four inches tall. It matures in around 50 days and has smooth, leafy blades in a cluster with crisp, pale green stems. Choko was bred to be small and heat tolerant.
Big Seeded Mache
Mache can survive temperatures down to ten degrees fahrenheit and matures in 60 days. It’ll grow to be about six inches tall and eight inches in diameter with dark green, spoon shaped soft leaves in a loose rosette.
Tokyo Long White Bunching Scallion
These Japanese scallions are long, slender, mild and mature in 65 days. They are sweet enough to use in pretty much anything from salads, soups, and stir-fry dishes and grow about 16-18 inches tall.
Olesh Tres Fine Endive
This is a mildly bitter flavored green with a really interesting frilly texture that matures in 42-70 days. It grows about six inches wide and tall in rosettes with broad crinkled green leaves.
Ruby Red Swiss Chard
Chard can withstand moderate freezes and matures in 50-60 days, growing about 24 inches tall and eighteen inches wide with dark green crinkled leaves, red veins and stalks. I use this the same way I use spinach
Danvers Carrot
This variety was actually created an hour from where I live way back in the day when growers were looking for a carrot with improved yield, color and uniformity. It matures in about 65 days. It’s a sweet classic carrot that’s resistant to cracks and splits and roots grow about six inches long/
Astro Arugula
I said I would never grow this, but there’s very few foods I actively dislike and I have a personal rule that I re-try foods I hate about once a year in different forms or varieties and since arugula is so cold hardy, I had to bite the bullet with this and try a new type to see if I can learn to love it. Astro matures in 32-55 days and supposedly has more of a mild flavor than other varieties when the plants are young so I’m hopeful.
Mizuna Mustard
This tender Japanese mustard is milder than other varieties and ready to harvest in 30-50 days. It can grow up to a foot tall and wide but it’s usually harvested when it’s smaller.
Rosette Tatsoi
This beautiful leafy green is more flavorful than traditional bok choy and matures in 45 days. It is super cold tolerant down to 15 degrees fahrenheit and can be harvested even in the snow. It grows pretty low and wide with spoon shaped dark green thick leaves in a rosette.
Tendergreen Mustard
This is also called mustard spinach, but it’s not actually mustard OR spinach. It’s super easy to grow, hardy and productive and matures fast in 30 days to be about two feet tall and up to two feet wide with smooth dark green glossy leaves.
