Sempervivum and Jovibarba forum: Are they winter hardy?

Views: 883, Replies: 14 » Jump to the end
Name: Pia-Louise
Romford, U.K. (Zone 8b)

Sempervivums Lover of wildlife (Raccoon badge) Roses Bulbs Plant Lover: Loves 'em all! Enjoys or suffers cold winters
Garden Art Herbs Cactus and Succulents Plant and/or Seed Trader Container Gardener Region: United Kingdom
Image
PiaLouiseSourvi
Sep 30, 2012 10:56 AM CST
Are Semps winter hardy? I am going to leave mine outside and just hope that nature takes its course and makes sure they survive. I am buying a small greenhouse for my more delicate plants like Crassula Ovata, Sedum and my Aloe's. Hoping it fits on the little roof space I have. Thumbs up
[...very passionate about Biology and Art. One day I would like to breed award winning hybrids.]
[Last edited by PiaLouiseSourvi - Oct 3, 2012 10:00 AM (+)]
Give a thumbs up | Quote | Post #315419 (1)
Name: Lynn
Dallas, OR (Zone 8b)
Charter ATP Member Garden Sages I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar I was one of the first 300 contributors to the plant database! Plant Database Moderator
Forum moderator I helped beta test the first seed swap Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level Sempervivums
Image
valleylynn
Sep 30, 2012 5:34 PM CST

Moderator

Many sedum are winter hardy also Pia.
Name: Pia-Louise
Romford, U.K. (Zone 8b)

Sempervivums Lover of wildlife (Raccoon badge) Roses Bulbs Plant Lover: Loves 'em all! Enjoys or suffers cold winters
Garden Art Herbs Cactus and Succulents Plant and/or Seed Trader Container Gardener Region: United Kingdom
Image
PiaLouiseSourvi
Oct 2, 2012 3:47 PM CST
[...I will try the Sedum outside and see what happens! If it starts showing any signs of stress I'll put it back inside. Thank you as always for the help and inspiration Lynn!] Hurray!
[...very passionate about Biology and Art. One day I would like to breed award winning hybrids.]
Name: Lynn
Dallas, OR (Zone 8b)
Charter ATP Member Garden Sages I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar I was one of the first 300 contributors to the plant database! Plant Database Moderator
Forum moderator I helped beta test the first seed swap Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level Sempervivums
Image
valleylynn
Oct 2, 2012 3:56 PM CST

Moderator

What sedum Pia? Or are you talking about your Semp. 'Oddity'?
Name: Pia-Louise
Romford, U.K. (Zone 8b)

Sempervivums Lover of wildlife (Raccoon badge) Roses Bulbs Plant Lover: Loves 'em all! Enjoys or suffers cold winters
Garden Art Herbs Cactus and Succulents Plant and/or Seed Trader Container Gardener Region: United Kingdom
Image
PiaLouiseSourvi
Oct 3, 2012 6:03 AM CST
I will leave the Oditty outside, I'm now talking about this Sedum, at the moment it's a NOID, I'm waiting for the flower to open! lol :)

http://garden.org/thread/view_post/313695/

[...very passionate about Biology and Art. One day I would like to breed award winning hybrids.]
Name: Marilyn
Greenwood Village, CO (Zone 5b)
Garden today. Clean next week.
Garden Procrastinator Region: Colorado Heucheras Region: Southwest Gardening Container Gardener Enjoys or suffers cold winters
Sempervivums Annuals Foliage Fan Herbs Garden Ideas: Level 2
Image
CDsSister
Oct 3, 2012 9:44 AM CST


Why do we refer to plants as Winter Hardy but never Summer Hardy???????

Seems like I lost more to the heat of summer than I am likely to lose over winter.

Hilarious! Hilarious!
Name: Pia-Louise
Romford, U.K. (Zone 8b)

Sempervivums Lover of wildlife (Raccoon badge) Roses Bulbs Plant Lover: Loves 'em all! Enjoys or suffers cold winters
Garden Art Herbs Cactus and Succulents Plant and/or Seed Trader Container Gardener Region: United Kingdom
Image
PiaLouiseSourvi
Oct 3, 2012 9:58 AM CST
I am for the first time thinking of leaving some of my plants outside for the winter. I am pretty sure the Aloe and Crassula Ovata will not make it through the frost, so I'm bringing them in. Going to take a chance and leave all the Semps outside. As for the NOID Sedum, I'm going to see how it gets on in the next few months. What kind of temperatures do you guys get in winter months? Have your semps ever survived a few inches of snow? It usually snows once a year here for a few days. Smiling
[...very passionate about Biology and Art. One day I would like to breed award winning hybrids.]

Charter ATP Member I was one of the first 300 contributors to the plant database!
twitcher
Oct 3, 2012 10:00 AM CST
Pia, I don't have an ID for your sedum, but from its shape and structure, think it unlikely to survive a freeze. I have not seen a "fleshy" type like that that is winter hardy (from a USA zone 5 freezing temps for months perspective)

Marilyn, Unusual heat hear as well, so I can see your point. They don't like long, hot, dry spells.

Charter ATP Member I was one of the first 300 contributors to the plant database!
twitcher
Oct 3, 2012 10:04 AM CST
The semps should all be winter hardy in your location, Pia. My semps were covered by feet of snow some years, and no snow others. Snow cover is better than not, when the temsp drop to zero or thereabouts. Cold, dry winds can be an issue causing them to dry out over winter. If you get frost and occasional snow or rain, but not temps not far below freezing, they will thrive.

As the snow cover melts in the spring, I will find my semps smiling at me as they often are showing signs of growth while still surrounded by snow. They are happy with snow cover.
Name: Pia-Louise
Romford, U.K. (Zone 8b)

Sempervivums Lover of wildlife (Raccoon badge) Roses Bulbs Plant Lover: Loves 'em all! Enjoys or suffers cold winters
Garden Art Herbs Cactus and Succulents Plant and/or Seed Trader Container Gardener Region: United Kingdom
Image
PiaLouiseSourvi
Oct 3, 2012 10:51 AM CST
I'll bring the Sedum inside in that case! I also look forward to my Semps getting bigger over the winter! :D Many thanks! Smiling
[...very passionate about Biology and Art. One day I would like to breed award winning hybrids.]
[Last edited by PiaLouiseSourvi - Oct 3, 2012 10:59 AM (+)]
Give a thumbs up | Quote | Post #315455 (10)
Name: Lynn
Dallas, OR (Zone 8b)
Charter ATP Member Garden Sages I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar I was one of the first 300 contributors to the plant database! Plant Database Moderator
Forum moderator I helped beta test the first seed swap Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level Sempervivums
Image
valleylynn
Oct 3, 2012 4:06 PM CST

Moderator

Marilyn, your semps that have survived this year will do much better for you next year. They will have nice established roots by then and will be able to handle drought without much trouble.
I find that some of my new semps have a difficult time during their first summer, once they make it to the next year they take off and make up for lost time. Hurray!
Name: Lori
Calgary, Alberta, Canada
Plant Identifier
growitall
Nov 14, 2012 12:22 AM CST
PiaLouiseSourvi said:Are Semps winter hardy?


I don't have as many species and varieties as many of the enthusiasts here, but having said that, I've yet to find a sempervivum that isn't hardy here in zone 3! They are true alpines and very adapted to harsh conditions (though they grow so easily here with no special conditions that most people don't realize they are alpines). Winter wet though is probably another story altogether! It's not something we experience here.

Name: Lynn
Dallas, OR (Zone 8b)
Charter ATP Member Garden Sages I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar I was one of the first 300 contributors to the plant database! Plant Database Moderator
Forum moderator I helped beta test the first seed swap Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level Sempervivums
Image
valleylynn
Nov 14, 2012 2:24 AM CST

Moderator

What are your lowest winter temperatures Lori?
Name: Lori
Calgary, Alberta, Canada
Plant Identifier
growitall
Nov 17, 2012 10:28 AM CST
It can get to -30 deg Celsius or a tad lower for brief periods; this would most often be an overnight low, maybe a couple of times through the winter, sometimes a bit more prolonged. The elevation in my area is about 1130 meters. Due to proximity to the Rockies, we get chinook winds through the winter - warm winds that melt the snow, exposing the soil during the winter.
People all across the prairie provinces (in places where it gets a heck of a lot colder than this) grow sempervivums as regular border plants. So, yes, very hardy and not even requiring rock garden conditions - though they certainly look their best tucked into stonework and filling the gaps between rocks, as they grow in nature.
As with most alpine plants (and an awful lot of regular perennials), the thing to watch out for is winter wet.
[Last edited by growitall - Nov 17, 2012 10:38 AM (+)]
Give a thumbs up | Quote | Post #328443 (14)
Name: Lynn
Dallas, OR (Zone 8b)
Charter ATP Member Garden Sages I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar I was one of the first 300 contributors to the plant database! Plant Database Moderator
Forum moderator I helped beta test the first seed swap Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level Sempervivums
Image
valleylynn
Nov 17, 2012 10:44 AM CST

Moderator

growitall said:
As with most alpine plants (and an awful lot of regular perennials), the thing to watch out for is winter wet.


I agree

« Garden.org Homepage
« Back to the top
« Forums List
« Sempervivum and Jovibarba forum
You must first create a username and login before you can reply to this thread.

Today's site banner is by dirtdorphins and is called "Dianthus 'Nyewood Cream'"