Hardening off seedlings

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EdieJ
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Joined: Sun Jan 05, 2020 8:34 pm
Location: North AL Zone 7

Hardening off seedlings

#1

Post: # 13914Unread post EdieJ
Sun Mar 15, 2020 10:21 am

I have got to get my seedlings hardened off. They will start out on our screened-in porch and eventually out into the Great Outdoors. But how am I supposed to get them acclimated to sunshine when it's going to be cloudy and rainy for weeks to come. And it's going to be a challenge to get them sprayed with Daconil too. Going to be another challenging year, I'm afraid.
North Central AL (mountains)
Zone 7

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Rajun Gardener
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Joined: Tue Dec 10, 2019 9:00 am
Location: Lafayette La

Re: Hardening off seedlings

#2

Post: # 13916Unread post Rajun Gardener
Sun Mar 15, 2020 11:04 am

Cloudy days are perfect for hardening off, they'll still get the uv rays without the bright sun. Start off a few hours a day and increase it everyday till they can stay out all day.
Zone: 9A
Climate: Hot and Humid
Avg annual rainfall: 60.48"

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AZGardener
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Joined: Wed Dec 11, 2019 9:12 am
Location: Arizona, USA

Re: Hardening off seedlings

#3

Post: # 13917Unread post AZGardener
Sun Mar 15, 2020 11:12 am

As long as it isn't raining I put my seedlings out when it's overcast or cloudy. I've potted up most of mine and they're in the greenhouse while they get a little more size before going in the garden.
USDA Zone 9b, Sunset Zone 13
Average Rainfall 9.5 inches
Climate: Sonoran Desert

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loulac
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Joined: Thu Mar 12, 2020 6:14 am
Location: South of France

Re: Hardening off seedlings

#4

Post: # 14156Unread post loulac
Tue Mar 17, 2020 2:20 pm

First day 10 minutes on a sunny day, second day 20 minutes, third day one hour, fourth day the whole day. Never had a problem. I must say my seedlings get a strong artificial light as soon as they germinate.

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edweather
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Joined: Wed Dec 25, 2019 12:22 pm
Location: Southeast GA, USDA 9a, HZ9, Sunset Z28

Re: Hardening off seedlings

#5

Post: # 14158Unread post edweather
Tue Mar 17, 2020 2:59 pm

Yeah, overcast is perfect for hardening off. If the bright sun eventually becomes an issue, just do your best to limit the sun until they are accustomed to it. I had a similar problem this year. My young plants got used to cloudy cool weather for a while, and then we had blazing sun, and warm temps. I put up a beach umbrella to block the sun, and moved it around for a few days until the plants got used to full sun.
Southeast GA, USDA 9a, HZ9, Sunset Z28

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bboomer
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Joined: Sat Jan 16, 2021 10:41 am

Re: Hardening off seedlings

#6

Post: # 39789Unread post bboomer
Sat Jan 30, 2021 5:40 pm

I made my own cold frame from a design in The Victory Garden. I had never heard of such a thing until I moved to the frozen north but in Wisconsin you need to protect your seedlings from the cold if you hope to get a head start on the season. It's great for everything I grow from lettuce to green peppers.
It is a great design (I made it half the recommended size) and once the season is under way, it is easily stored. This is a great feature for small backyard gardeners.
Cheers.

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