Gardening and Landscaping Stack Exchange
Gardening and Landscaping Stack Exchange

Questions tagged [frost]

Covering of ice caused by locally sub-freezing temperatures.

Frost is formed when water vapour freezes and forms an ice covering over the ground and/or plants. Typically frost forms when the air temperature drops below freezing (0C, 32F) - this is an air frost.

Moisture evaporation can cause localized drops in air temperature close to the ground. This results in a ground frost where frost is formed even though the air temperature a few feet above the ground remains just above freezing.

Frosts can damage plants, crops, and fruit. Use this tag for questions about hardiness against frosts, and how to protect sensitive plants against frosts.

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How low of temperature can hot pepper plants tolerate?

How low of of temperatures can my hot pepper plants (I have a few different types) tolerate overnight? What about the fruit (some is ripe, some is not) on the plants? I have a few nights forecasted as lows of 38 F coming up and am wondering if I…
Learning2Thumb
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Can young sunflower transplants take a light frost?

I realize that sunflowers can grow easily from direct-seeding, but to get some earlier sunflowers, I thought I'd try starting them early (since I've heard that works well, too). I've heard that sunflowers can be sown up to two weeks before the last…
Brōtsyorfuzthrāx
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Marigold Seeds in Light Frost - Are They Lost?

I'm a novice gardener and have put some trays of marigold seeds in the garden. Last night, we had unforecast frost. It wasn't a heavy frost, and only appeared in small patches on the grass in the garden. If it's relevant, this is in the UK. The…
Donglecow
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Treatment for a palm tree recovering from frost damage

Our palm tree got hit by the frost earlier this year and lost all its leaves. It has now started to regrow but mainly from the base, the top part of the tree is dead. Should I prune these leaves and should I also remove the top part that is dead?…
Phillip Smith
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Aloe Vera exposed to frost - cut the leaves or let it heal?

An obvious mistake from my side. I left the plant outside while it was freezing. Now back indoors. Any advice what to do with leaves now?
Mars Robertson
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Any way to save peppers after super early frost?

We just had an early September snow (two nights below freezing) here in Colorado. I did get some cover over my beds to keep the snow off the plants, but it was much to big to really work as a greenhouse so it still got cold in there. My bell…
Benjamin Brannon
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What is the 90% confidence last hail date for Denver, Colorado?

There have been large hailstones in the city of Denver, Colorado every Spring of each year for more than 30 years. My father and I always used the last frost date to decide when to plant my tomatos, cucumbers and other vegtables. Half of the time,…
Samuel Muldoon
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Can regular plastic bags (Type 4) be used to retain warmth for outdoor plants during winter / plastic bag Greenhouse?

I have been moving my plants outside during the day and inside at night. I'm going to be away for a few days, and I need the plants to get sunlight (although it has been cloudy and raining lately). I thought of creating a DIY green house with…
M.K
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My marigolds wilted due to frost. Can I revive them?

I live Edmonton, Alberta,Canada. I bought marigolds recently and planted them outside in the lawn, in weekend when the temperature was 20-23 degrees Celsius. Suddenly during the week the temperatures dropped to 0 and -1 celcius and it snowed. I…
Sri
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Does using a fleece cloche hinder plants from getting enough sunlight?

I got some fleece cloth to protect my plants from frost / low temperatures, but it's semi opaque so blocks most sunlight. Is it OK to leave it on through the day (while it's still cold), or do I need to remove it during the day to give the plants…
moinudin
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Can this open water reservoir be damaged from the ice building inside it?

This circular concrete structure in the garden may have been a well before but now the bottom is closed and a water pipe leads to it. It is roughly a meter deep, 1.3m diameter, 50cm above surface and the walls 12cm thick. It was filled with water…
djangonaut
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What is the problem with this Arran Pilot potato plant?

I have noticed the following on some leaves on my arran pilot potatoes. Is it frost damage, blight, or something else?
Moz
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Brussel Sprout Seedlings Hardy?

I got my Brussel sprouts started early. They are in the ground (zone 5), but I think we are getting one more 30 degree frost on Friday. They are small little seedlings right now. My question is, can they stand a frost even in the seedling stage or…
Benjamin Hobson
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Did I kill my Aloe Plant?

I forgot my aloe plants were on my porch so they were exposed to winter temperatures, with a couple of those nights being below freezing. I brought them in, lightly watered them and they did not bounce back. I cut the leaves all the way down and…
Samantha Poindexter
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How do you keep newly sprouted lemon trees warm?

The lemon trees are about 4 inches tall, have been in ground for about 4 months, and are doing very well but there is going to be frost soon and I don’t know how to keep them warm during winter since they are so small. How can I protect them from…
Ash
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