Growing Pains: Sedum question....

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Growing Pains

By valleylynn
January 1, 2010

A plant clinic for Sempervivum, Jovibarba and J. heuffelii. This is a companion article for the Sempervivum and Jovibarba forum.

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Name: Linda
M'boro, (Middle)TN (Zone 6b)
I was one of the first 300 contributors to the plant database!
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LuvNature
Sep 5, 2010 9:18 AM CST
This is a pic of my Autumn Joy. Each year it gets these spots on it. Is this from excessive heat? They get heat reflecting from the concrete driveway and full sun.

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Name: BlueFox
Grand Forks, B.C. Cdn. Zone 5A (Zone 4a)
Romantic & Rustic, Xeric & Organic
Charter ATP Member Sedums Sempervivums Region: Canadian Garden Art Enjoys or suffers cold winters
Cactus and Succulents Butterflies I was one of the first 300 contributors to the plant database! Xeriscape Garden Ideas: Level 1
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BlueFox
Sep 5, 2010 6:04 PM CST
Linda, do you have a real close up of the actual damage?
Name: Linda
M'boro, (Middle)TN (Zone 6b)
I was one of the first 300 contributors to the plant database!
Image
LuvNature
Sep 5, 2010 6:55 PM CST
Jacki...I did the best I could with it being almost dark here. I'm beginning to wonder if mine is true Autumn Joy. I thought it was suppose to be red when it blooms Confused
I did buy my Autumn Joy with a tag included, but I'm not sure that means much.... Hilarious!
Maybe you can see these pics better. Sticking tongue out

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Name: BlueFox
Grand Forks, B.C. Cdn. Zone 5A (Zone 4a)
Romantic & Rustic, Xeric & Organic
Charter ATP Member Sedums Sempervivums Region: Canadian Garden Art Enjoys or suffers cold winters
Cactus and Succulents Butterflies I was one of the first 300 contributors to the plant database! Xeriscape Garden Ideas: Level 1
Image
BlueFox
Sep 5, 2010 7:55 PM CST
It is hard to see. I've had similar damage from water that is too alkaline, or too cold. Do you have pop up sprinklers? Maybe try watering with a drip or soaker hose instead.
I agree, that doesn't really look like AJ, mine has almost salmon coloured blooms, not pink with yellow like this one.
Name: Linda
M'boro, (Middle)TN (Zone 6b)
I was one of the first 300 contributors to the plant database!
Image
LuvNature
Sep 5, 2010 8:00 PM CST
Thanks Jacki....and I do water them myself sometimes with a sprayer, and the water would be cold to them on a very hot day. I need to make note of this so next year I just water them underneath. I'll try to get a really close pic tomorrow. Lovey dubby
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
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valleylynn
Sep 5, 2010 8:03 PM CST
Mine are a dusty rose color. http://cubits.org/sedumandsempervivum/db/sedumdatabase/view/...

Charter ATP Member I was one of the first 300 contributors to the plant database!
twitcher
Sep 5, 2010 10:28 PM CST
Jumping in here....

First, I do not grow any of the larger sedums myself, but have some I follow in the neighbor's yard. I do have a couple of thoughts to share and an experiment to try.

Some thoughts come to mind 1) Perhaps a portion of your flowers are not visited by pollinators, resulting in a non-fertile seed body area that simply dries up. Try to see if the spot starts after the flower opens and stays open for awhile, or if the spot appears before the flower opens. 2) In areas with intense sun, water on a flower or plant can focus and intensify the sun's heat, resulting in burning. So does your watering routine leave areas of water on the plants when the sun is intense? Do you water in the middle of the day?

Here's an experiment to try. Place a zip lock bag over the flower head before the flower opens. Hold the bag in place with some tied soft thread and zip up as much of the bag as you can. Watch it to see if any spots develop. That may tell up something.
Name: Linda
M'boro, (Middle)TN (Zone 6b)
I was one of the first 300 contributors to the plant database!
Image
LuvNature
Sep 5, 2010 10:57 PM CST
twit....noooo....I do not water during the heat of the day. Either early morning or late afternoon... Sticking tongue out

I like your thoughts on the pollinators, too. I'll try the ziplock bag experiment and let you know what happens....I'll take some pics before and after. Thumbs up
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
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valleylynn
Jul 4, 2011 12:56 PM CST
Linda how did this experiment work out for you?

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