Gardening expert Mark Cullen gives tips on using cold frames

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[christinaannabel]

Explained well. My impression is that Mr. Cullen could be called the "Mr. Rogers of Horticulture". And that's a compliment.

[MyRonnierocket]

Good information as I'm thinking about making a cold frame. Great video.

[Sholland]

I can’t wait to try this to temper plants. This is a real struggle for me and is the solution I need. My plants are coming from a warm room and a grow light so they often go into shock. Thanks for the advice.

[robaquadro]

Greetings from Massachusetts! Great video! I'm a novice home gardener, each year picking up some new tips. One of the biggest problems I have had in past years, despite attempted hardening off (it's difficult to properly harden off plants with a day job), is that they always seem to get burned from the sun's UV rays. I've been toying with the idea of building a cold frame and hardening off my plants as you and others have recommended. What I'm confused about is how the cold frame protects the plants from burning in the sun. Are there any other steps needed to protect the plants from the sun in the cold frame...or does the plastic/glass offer some protection? Thanks much!

[hongbinli]

Hello Mark, great videos! Could you please let me know where did you get those heavy duty plastic crates, black one stands and green one on the ground. I see it in nursery but could not find place to buy it. Thanks

[David-fvzg]

I start my seeds under lights and a heat mat in my house. Can I use a coldframe to harden them off just like this?

[hongbinli]

Hello Mark, I mean the black heavy duty plastic rectangular crate on the table inside your shed, I am looking for it years but couldn’t get it in Toronto. Could you please tell me where to buy it. Thanks, Ben

[boom]

15 degrees in the UK I’m in shorts and t shirt pottering about 😂

[chantallachance]

The plant DONT need hot air
The plant NEED HOT SOIL
AT the autumn let some seeds directly on the ground at a sunny place ex: all kind of lettuce, tomato seed
When the spring time come the snow going to melt at the sunny place at the soil going to be MORE HEAT
The soil NOT AIR
At 0 the spinach will grow
At 4C the lettuce will grow
At 10C the tomatoes will grow
FREE GARDEN LESS JOB
Here ZONE 5 Qc Canada

[calman]

Sorry but the constant background music. Is too distracting for my brain.

[campyper]

Pity about the nauseating peaching from the Star about race issues at the beginning.