18 Cold Hardy Vegetables That Can Survive 20F DEGREE Hard Freezes
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- čas přidán 4. 07. 2024
- We just received back-to-back 22°F (-5.6°C) hard freezes, which tested the limits of the cold crops I am growing in my winter garden. I woke up at sunrise to conduct a plant tour of all 18 cold hardy vegetables that I am growing in my Zone 8 garden while all plants were still frozen solid. All winter vegetables were left unprotected and fully exposed to the hard freeze.
I then waited for all plants to thaw and conducted another garden tour just before sunset, because sometimes it takes awhile for freeze damage to show. The cold hardy plants shown in this video easily survived the 20F degree hard freeze, with only a handful showing very minor damage that the winter hardy vegetables will quickly recover from. They are all excellent vegetables to grow when gardening in winter.
TABLE OF CONTENTS
0:00 Garden Tour Of Frozen Plants
0:42 Kale
2:04 Carrots
2:51 Beets
3:56 Cabbage
4:30 Lettuce
5:19 Broccoli
6:08 Spinach
6:50 Rapini (Broccoli Rabe)
8:00 Swiss Chard
9:17 Herbs: Cilantro, Dill, Parsley, Thyme, Rosemary, Oregano
10:40 Garlic, Onions, Shallots
11:26 Late Afternoon Garden Tour To Check For Freeze Damage
If you have any questions about winter gardening, zone 8 gardening, the frost tolerant vegetables shown in this video, any of the other things I am growing in my garden, are looking for any garden tips and tricks, or have questions about vegetable gardening in general, please ask in the Comments below!
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ABOUT MY GARDEN
Location: Southeastern NC, Brunswick County (Wilmington area)
34.1°N Latitude
Zone 8A
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If you get a freeze, just get a spray bottle of water and spray the plant before the sun hits it. It’s not the freeze that kills it, it is the dramatic weather change when the sun hits it. So the water will soften the leaves so they are not frozen when the sun hits
22°F , in Montana we laugh at 22°F. We get hard freezes of --22°F and colder. I grew a flat leaf kale that froze and then thawed again many times. Right now I have giant red celery that has been unprotected and is still alive with new shoots at the base of the plants. That is some tough celery. Oh, and pansies. I germinated some white pansies from seed and right now they are growing, producing blooms as if it is summer. It is remarkable. The Chinese and Japanese greens are covered and still alive but not growing. I live in a zone 4.
I have had thyme and oregano growing outside two winters now. I do cover them for winter. I put in hard neck garlic for the first time yester October.
Montana is no joke. I’ve been several times, and in the winter, it is basically tundra. Have your considered investing in a low tunnel or high tunnel? A greenhouse there would be interesting. By building greenhouses built into the earth, there are people growing citrus in Nebraska without added heat. The stored heat of the ground is incredible.
That's amazing, thx for sharing the details.
22 degrees BITTER cold. As a Canadian I find that highly amusing. In the great white north bitter cold starts about minus20.
Johnny's has some amazing cold hardy greens. We've tried several lettuce / kale / collard / spinach varieties that germinate in February for us (teens under light frost covering in case it gets colder here in 6b) and don't care at all about the temps into early spring. The plants obviously grow fairly slow that cold, but you can get a nice head start (before the bugs sometimes).
I would recommend Red Russian Kale if you haven't grown it. It's REALLY tough stuff. Probably one of the toughest.
I have both German and English thyme and they are both still growing ,taking over my little garden .
Most varieties of thyme are tough! They can be invasive. They respond well to pruning, so cut them back as necessary. I love the smell.
Wow! You’ve got it pretty cold 🥶 great to see what veggies will hold up to those temps. Thanks for another informative video 🙌🏽🧑🌾
For the US, it's pretty mild, but North America is the coldest continent per degree latitude since Canada is effectively a land bridge of Arctic air that is funneled all the way to the subtropics, unimpeded, with no East-West mountain range to encumber it. I'm at 34N, which is frost-free on most continents, but not here 😢 Luckily, most frost-hardy greens can take it since our cold shots are brief and it warms up come daytime. Thanks for watching!
broccoli robe is a great green (Italian family) and while used on sandwiches we use it as an ingredient in pesto for where we want something different in a recipe.
I bet that adds some zing to it! That's a pretty good idea. Thanks for watching!
-5 seems like a warm day over here! thanks for the video :)
I’m surprised at these plants. Thanks so much for the information ❤
You’re welcome 😊
Those beet tops are the best greens you can eat. Yummy
I have Russian kale, Dwarf Curly kale, Fordhook chard, Chinese broccoli, and baby bok Chou growing in pots. Ive been covering them at night with a giant cardboard box from a sofa we bought. I also have a couple of Shishito peppers that I’ve covered as well. Will beets and carrots germinate outside during the winter or do you have to start them indoors? What about growing radishes during winter? It’s gotten down to 27 here. Thanks for posting another informative video!
Beets and carrots germinate easily in my Zone 8 winters. I can’t say they’ll germinate in places where the ground freezes, but if you can prevent the ground from freezing, I have no issues at all. We hit 26.6F last night and have gotten as low as 22F this winter. Zero problems.
@@TheMillennialGardener I’m in 8B, so I’ll give it a try. Thanks for the quick reply!
Great video. Very helpful. Thank you!
Thanks for watching!
A belated thank you for your video! I'm here in the deep south about to experience 23 degrees. Based on your findings, I plan to not harvest my small cabbages as I would like them to grow for New Year cabbage and beyond!
Very useful information; thank you!
Thanks for watching!
So helpful to know about the dill. I recently learned how resilient cilantro is too. I have some that has survived, uncovered all winter so far. I regret pulling both out! 7b georgia
In 7b Georgia, you should perform almost as well as I do (I'm in 8a NC). A frost cloth can help tremendously, too.
I have some of vegetables on my garden in winter too and they are great cold hardy
Great info! I think I might try some next year!
Thanks for watching!
Loved the video VERY much. Such a great indication of my zone 8b which I am 60 miles north of the Gulf of Mexico. This winter, so far, has been Grand Solar Minimum kicking in????? Through the night snow is predicted as a dusting. Quite unusual. Thanks so much for your super informative videos - keep em comin!
I've been experiencing the same thing. It's been brutally cold here in the Southeast. We are typically 5-10 degrees below average during the day almost every day. I think last year, we had maybe 3-4 highs in the 40's all winter and we've already had over a half dozen of those. Funny thing is in the Great Lakes and Northeast, they're seeing a mild winter. Where I grew up in NJ, we've only been about 8 degrees warmer than them on average this year. Normally, we are a solid 20 degrees warmer. Spain, Italy and Greece are also seeing the coldest temps since the 1980's. It all evens out, I guess.
Usually the reds/purples (anthocyanin) are in response to environmental stress. In my experience, the plants that develop the nice dark colors do tend to handle the colder temperatures with less damage.
I have some red romaine that I just planted. We got hit by 27.7F last night and they look dandy. Gotta love the red lettuces.
Thank you for your video I’m new to zone 7 in north west SC. I planted red leaf lettuce, cauliflower and broccoli in my raised beds for the first time we had 28 degrees last night, when the sun comes up I’ll go out to check & see how they’re doing. Is cauliflower cold hardy as well, you didn’t mention it.
Thanks for sharing about your mandarin oranges and pineapple java I am in zone 8a here Ga.
Thanks for watching!
nicely explained , thx
You're welcome. Thanks for watching.
Very helpful. Thanks for a great video , we also are in zone 8 and have cabbages and broccoli and cauliflower , I was wondering if they continue to grow as we are getting in to the low 50# some days , my heads are small especially cauliflower but hope they grow bigger
They will still grow, albeit slowly. Usually, they crawl from mid-December to mid-February since the days are so short, but by end of February they begin taking off as the days lengthen.
I love Fall & Winter gardens the best, except for figs...
You know, it's WONDERFUL gardening without PESTS! No gnats, mosquitoes, worms, leaf hoppers, stink bugs...that part is truly awesome. But man, what I'd give for some fresh basil and tomatoes with figs for dessert.
@@TheMillennialGardener I agree with you! I'm planting my tomato starts indoors this week and just not sure how much I want to fight all the nemeses you named this coming Summer. Tomatoes, Figs some Spring-type Onions & Collards. Just don't want to do much more. Celebrity, Salsa, Fred's Tie-Dye and Indigo Rose should do just fine for me. On the lookout for the dreaded Kudzu this Spring.
Mustard might be another one... I had a couple of mustard plants in a 1 gallon pot last fall. After eating the leaves I left the pot alone, and during the winter it started resprouting.
I’ve never grown them, but they are frost hardy and tolerate freezes.
Mustard will tolerate frost well. I have had it survive down into the 20's.
Herbs... don't forget culinary sage, chives/green onions, savory, most mints/lemon balm, bronze fennel, dill, thyme, tarragon. Rosemary is tough in zone 6 but I'm having some success with some shelter from wind and will use frost coverings in the single digits. Currently have some Arp and local varieties. Several of these other herbs will die back or severely slow down, but in warmer areas a lot will be fairly untouched, especially if you cover them.
I have never grown sage because I'm not a big fan of it. Mint is nice but it's crazy invasive and I'd recommend growing it in containers. I have thyme growing as well as a lot of onions and rosemary. One of my dill plants finally bit the dust. We've had a very cold winter with many lows in the 20's, which is unusual for here. However, 2 dill plants still are alive unprotected.
Brussel sprouts are my favorite ! 😋
I have struggled to grow them here because they have such a long time to maturity. If I plant them in the late summer, the winters here are too cold and they get damaged. If I plant them in late winter, the springs are too hot and they bolt. I think they do better in places like New England, PWN or coastal CA where the temps are more moderate for a long period. I wish I could grow them.
@@TheMillennialGardener I have the same problem in Philadelphia.
@@robertevans8024 I lived in Philly in 13 years. I would guess the summers are too hot, too. I think the way to do it is to plant in fall and build protection. Maybe a hoop house with breathable agricultural fabric. It would have to be tall, though.
@@TheMillennialGardener thanks for the insight and reply. 👍👍💖🕊️🙏💯Stay safe !😷
@@robertevans8024 thanks for watching!
I HAVE TYYY NOW I KNOW WHAI CAN PLANT IN WINTER
Thanks for watching!
I am in zone 6 and my thyme is still growing .
Good to know. So am I. 👍
Is it German Thyme? I think that stuff is zone 5 hardy. Some thyme varieties are cold sensitive, but others are really tough.
Just took a quick walk around my yard ,and after snow melted my thyme is still growing .
@@yolandastephens7347 That's awesome!
@@yolandastephens7347 thyme is very tough. I believe German Thyme can survive to Zone 5, which is well below zero. I believe most thyme can tolerate significantly below freezing temps, so snow is definitely doable.
I'm in central Jersey. In the fall my spinach never got any bigger than what you showed and they all just turned into mush when the frost started. My garden is far shadier than I'd like. Do they need a lot of sun?
The winter sun is very weak, so they will need a lot of it to budge. You’re probably in Zone 6b or 7a, so that is pushing the limits of spinach. You may be growing a slow bolting summer variety that’s made to be more sun tolerant. You want to make sure you select a fast maturing, winter variety.
Fennel too.
I've never grown it. I may have to look into it if it has reasonable maturity times.
Bronze Fennel is a perennial in my garden. Flowers in Summer & goes to seed. In Autumn,Winter & Spring, i use the leaves. Best Wishes.
I’m in 9b valley of Arizona. What do u suggested in winter months. Am can get frost on car aka 33-34 degrees but in mid day 55-62
Almost anything that isn't tender will grow in 9b winters. These plants aren't threatened by frost. You can grow any lettuce, spinach, beet, radish, turnip, kale, mustard green, chard, cabbage, celery, brussels sprouts, bunching onions, leeks, cauliflower, herbs like parsley, thyme, cilantro, oregano, dill, mint, rosemary...the list is enormous.
@@TheMillennialGardener oh wow ! Here I thought be of heat and lack of seasons I won’t be able to grow anything outside lol Ty for the feedback!
I just wish I could call 8 degrees Fahrenheit as a 100 year low, lol 😆
8F is not our 100 year low. 0F is. The 8F freeze was the longest duration the area spent below freezing in 100 years. I think we spent 36 hours under 32 degrees. That killed A LOT of the plants around the area. We haven’t had a day with a high below freezing since thankfully.
Can’t grow any of these where I live. Maybe into November. Exploring season extensions this year.
Most of these plants are fast maturity. If you have cold winters, you can plant them in the summer and use agricultural fabric to extend your season, and also get a good jump on planting them early. I recommend a hinged hoop house like I have because with that, I bet you can grow them all winter.
You forgot sage :)
I don't cook with it much. Maybe one day I'll add more herbs and expand.
leaf lettuce can't survive 22F for more than a couple of day. You need head lettuce instead.
I've found red leaf lettuces to be the hardiest. Head lettuce starts to burn around 28F for me. I don't get damage on the red leaf lettuce until the teens. Even at 16F, the red leaf lettuce took a little tip burn, but I peeled those leaves off and they grew right back.