Are Hardiness Zones Important? (In Your Summer Garden)
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- Опубликовано: 26 янв 2024
- Does the success of your garden depend on your Hardiness Zone? Hardiness Zones are important and often misunderstood. Gardener Scott discusses how zones affect our vegetable gardens. (Video #497)
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I have 105 days of frost free growing in Central Alberta Canada. The hardiness zone means nothing when it comes to planning my vegetable garden. Gardener Scott you have explained this topic very well. It often is a very confusing topic for new gardeners. I am in a 4a zone so when choosing perennials I have to make sure that they are tolerant for that zone. My vegetable garden planting schedule is based on the weeks before and after my last frost date. The most important thing is to look at your growing days outside to determine when to start plants inside.I have a very short window for Peppers and tomatoes so starting them early is the best guarantee to get a harvest. Love your collaborations with Eli and appreciate your ability to share your gardening knowledge.
Great video. I'm in South Wales, UK -- technically zone 9a, but most of the heat-loving summer plants you can grow outside require a greenhouse/polytunnel (hoop house) here. On the other hand, winters are mild enough that I can [just about] grow citrus in my polytunnel.
I'm in the equivalent of USDA zone 7a/b, a bit colder than in Scotland in winter, but it's actually much warmer in summer! My growing season extends from April 7th to November 15th, and it regularly gets up to 40C/104F in summer, and very dry. So I tend to look up more gardening advice from people growing in zones 9 and 10 for my summer garden, since that's much more applicable than going by my hardiness zone. For winter vegetables and perennials, channels like yours offer more valuable advice to me, because it does get fairly cold in winter (although not as cold as Colorado, but cold enough to kill off all plants that aren't moderately hardy). It's a bit of a mix-and-match situation, and it shows that knowing your own local weather patterns and temperatures is much more important than knowing your hardiness zone.
You always explain things so well. It is interesting to see how Eli and Kate’’s last frost date is similar to yours. I sure am looking forward to spring and summer.
I am zone 5B in eastern Canada.I live on a pretty small Island but we still have 2 USDA zones and Our last frost dates can be a month apart depending on where you are. Heck the town 10 min away is a week earlier than me because it is close to the water.
I'm in zone 2a, it was -45F this morning. The 20+ hours of daylight have a far greater effect on my garden then the zone. Peppers and Tomatoes love it but I have a heck of time with broccoli (it bolts before much head formation). Last frost date is March 21 and first frost September 1.
That's it, I'm moving to Scotland! 😂
They say I'm 6b, but no! It's been far colder every winter
The only thing I'm concerned about in our area, Scott, is the darn hail
Yep, we need a set of summer heat zones, my 9a near Galveston, has too hot a summers to grow a lot of zone 9a rated plants.
Eli was so funny!😂. As always, great information Gardener Scott! Have a great day.
I love In Oklahoma normally in the winter time it just gets down as cold as the teens but within the last several years it's gotten way colder than that this past winter it got to about zero and I have a brother and sister-in-law that lives in Colorado they live up in the mountains up by the ski resorts a little town called crested Butte
👏👏👏👏 perfectly explained Scott. Brilliant video that should really help the newer folks feel more confident about getting their warm crops started.
I got into an argument yesterday with a Master Gardener who had a fundamental misunderstanding of USDA Hardiness Zones. Unfortunately, people like her and many other "gardening experts" online continue to spread bad information about the data Zone maps show and how that information is used. They're great with helping to determine which perennials will survive in any given area. They're irrelevant to annual vegetable gardening. Thanks for speaking on this often misunderstood topic.
I'm sorry it led to an argument but am glad to hear you're helping to spread better information. You're right that determining perennials is a primary way to use the Zones.
@@GardenerScott Yup.
Like the info from Scotland! Here in Michigan zone 5b. 38 degrees today with foggy snow!
The true hardiness zone for annuals is peak summer temperature, moisture, growing degree days, and day lengths. My hardiness zone for summer annuals in Prince George, BC would thus be ~+35°C, subhumid to semi-arid depending on the year, around 110 frost-free days, and many days where the darkest it gets is twilight.
For perennials and winter biennials (wheat, rye), both nadir winter temperatures and the growing season matter. The growing season dictates growth in a year and, in some cases, whether the plant can reproduce, and the winter nadir dictates how much cold the plant has to be able to tolerate.
Was going to try cold tolerant plants like they say online, brassicas, but it snowed today in New England so guess not, rule of thumb i feel like is no planting outside until after Memorial Day
Changing every year, mine changed in Northern Utah, and with 2 summers in a row of 105 i lost everything i was growing, water is drying up here and they've built 3000 apartments in my little small town, we will be waterless by 2030. I tried winter gardening but with lows in minus numbers with wind chill, have to change. I do have 2 degrees in engineering fields, so i have designed my greenhouse with concrete block around bottom and raised concrete block beds, which i can heat with a propane heater at night and concrete loves heat.
The greenhouse can buffer the effects of climate zone "overall" with technology.
between 26c and 29c here all week, sorry folks
There is also the microclimate issue. Greenhouses are microclimates.
From my own experience and expertise, I half agree and disagree about what you say on hardiness zone.
To me, that zone reflects lowest temp averages in winter. It also reflects the length of potential colder weather lasting longer in the zone. Lower number zones means fall comes earlier and spring comes later, then those of higher numbers. This impacts how soon you grow outdoors and how soon you pull outdoors.
Also, heat seems to be higher longer in higher zones.
I live in Reno, NV zone 7a. For me, it shows my typical fall has me shutting down late September to early October, starting up early May with summer veggies.
Something you should also add to this video.
Still love the videos though.
The definition of the Hardiness Zone really doesn't refer to how long winter lasts. It is purely the average lowest temperature over 30 years. The temperatures in September or October don't influence what the meteorological data show for the lowest temps.
Zones are for preannials
I'm in the Denver metro area and just moved in November. I didn't have a chance to plant garlic because of the move. Can I still plant my garlic in containers, or is it too late?
It might not be too late. The cloves need cold exposure of 4-6 weeks for good bulb development.
Nothing is Normal! Or Usual!
Here’s an Example: Z5a, WI
2023-Halloween 36*, Thanksgiving 41*, Christmas Day 52*F And Raining! 😮
2022-January came close to normal temps, but still warm. Subzero starting 13th for one week. Since last week we have had rain and 36-40* and possibly 50*F next week. 😮. To have a January thaw is normal for a few days-Not weeks! They say any future snow will melt. We had 22” and down to 9”. We badly need the precipitation as we were 7+” down in December from severe drought.
So definitely zones don’t matter as we are just as drizzly and warm as Scotland Z8.
What does help regulate from whiplash temp changes are large bodies of water which we don’t have-only those near Great Lakes. They can tend to stay cooler in spring till water warms up and warmer in fall till the lakes cool.
We had a series of solar flares early this week and not sure about week before. They are not sure how much this contributes as that and earthquake activity is still being studied, but I think it does contribute if even a tiny bit. The sun is going through a cycle and current cycle will end next year.
Winter sowing projects in my garden are turning into spring sowing as the seeds will rot or freeze after germinating too soon in artificial environments (jugs). I’ve seen it happen last year.
Best answer I have is stay with current ‘approximate’ dates to start seeds in Your garden location. Be prepared with frost cloths. My biggest concern is what I seen happen last year. Severe heat into May, plants advanced too quickly and they had severe die back or were killed by freezing temps the last weekend of May. It didn’t matter if you were on high or low land as the winery lost 95% of grapes high on a bluff. This is a territory I’m not familiar with, but I may have to start shading plants in the spring to prevent such growth. Potatoes, berries, grapes, transplants-Fried.
The local weather Never mentioned Anything about freezing that night. No warning. And who would have thought since we were cooking all month. I almost threw in the towel.
Zones are for landscape plant hardiness.
It’s getting tricky to garden.
This link didn't work: In the Garden with Eli & Kate: www.youtube.com/@UCsielepPOAs... . Went to a 404 page for me.
In the garden with Eli and Kate link: www.youtube.com/@eliandkate/featured
I updated with the link you have.