All Things Gardening forum: Alyssum in hot summers

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Orange County, CA (Zone 10a)
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maxcaviar
Feb 8, 2016 11:54 AM CST
I have a good bit of alyssum in our yard. Being in SoCal it gets hot in summers. I understand that heat will squelch blossoming, but will it kill off the plants entirely? I don't mind a season with little to few blooms, but don't want to waste time on something that must be replaced. thx
Name: Rick Corey
Everett WA 98204 (Zone 8a)
Sunset Zone 5. Koppen Csb. Eco 2f
I helped beta test the first seed swap Plant and/or Seed Trader Seed Starter Region: Pacific Northwest Photo Contest Winner: 2014 Vegetable Grower
Avid Green Pages Reviewer Garden Ideas: Master Level Garden Sages I was one of the first 300 contributors to the plant database! I helped plan and beta test the plant database. Charter ATP Member
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RickCorey
Feb 9, 2016 3:25 PM CST
http://www.greenhousegrower.com/varieties/heat-tolerance-set...

This site trumpets a new variety that IS heat-tolerant, and they mention Dallas Texas and Miami Florida.

"Where old-fashioned seed-type alyssum do well only in Mediterranean climates, quickly dying in the summer in all other parts of the country, these new hybrids thrive in the heat."

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http://www.gardeningknowhow.com/ornamental/flowers/alyssum/g...

On the other hand, this site thinks ALL sweet alyssum are unusually heat-hardy ... but maybe "a wide range of regions" doesn't include Texas, Florida and southern California.

"Few annual plants can match the heat and drought hardiness of sweet alyssum. The flowering plant has naturalized in the United States and thrives in a wide range of regions."

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Maybe it's a question for the Florida or Texas forums?

I see 6 members from CA, TX or FL "Have" Sweet Alyssum (Lobularia maritima), ignoring named cultivars and other species in the genus Alyssum. Also Zencat from West Valley City, Utah.

http://garden.org/lists/plant/77618/ < - - - list of ATP members who "HAVE" sweet Alyssum (Lobularia maritima)

Orange County, CA (Zone 10a)
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maxcaviar
Feb 10, 2016 2:38 PM CST
excellent info, reading reading reading
Name: woofie
NE WA (Zone 5a)
Charter ATP Member Garden Procrastinator Greenhouse Dragonflies Plays in the sandbox I was one of the first 300 contributors to the plant database!
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woofie
Feb 12, 2016 11:30 AM CST
I have read that the Snow Crystals and Clear Crystals varieties are supposed to be more heat tolerant. And they are also more compact, with larger flowers. I grow them as annuals here in the frozen north and love them both.
Confidence is that feeling you have right before you do something really stupid.
Name: Philip
Ireland,.The Midlands. (Zone 8a)
Amaryllis Clematis Cactus and Succulents Hostas Dahlias Seed Starter
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glengarry23
Feb 17, 2016 2:48 AM CST
There are several named " Lobularia maritima ",..some more compact than others,.. all have a very nice sweet scent which wafts about the garden,..most are described as being approx 6inches in height,..this includes the Violet Colored type named " Violet Queen",..however a packet of seeds i received named Lobularia maritima 'Sweet Alyssum' grows in my garden from June to October,..reaches a height of over two foot,..where the means to climb are provided,.. survives in temperatures up to 98F and down to heavy frost and snow,..granted it dies back somewhat in heavy frost though never in the high temperatures,..just water the base and up it boosts,..August Temperature.
Thumb of 2016-02-17/glengarry23/15430f


I have to admit this plant is the one that gets the least amount of attention in my garden,..given more help it would produce better blooms,..i would recommend it as a worthwhile addition to any garden Thumbs up

Here are some images from June to October,..and in that order below.

Thumb of 2016-02-17/glengarry23/e86e21 Thumb of 2016-02-17/glengarry23/1350e8 Thumb of 2016-02-17/glengarry23/604995 Thumb of 2016-02-17/glengarry23/dbaa5b
Thumb of 2016-02-17/glengarry23/c382f4




[Last edited by glengarry23 - Feb 17, 2016 2:51 AM (+)]
Give a thumbs up | Quote | Post #1060762 (5)
Name: Rick Corey
Everett WA 98204 (Zone 8a)
Sunset Zone 5. Koppen Csb. Eco 2f
I helped beta test the first seed swap Plant and/or Seed Trader Seed Starter Region: Pacific Northwest Photo Contest Winner: 2014 Vegetable Grower
Avid Green Pages Reviewer Garden Ideas: Master Level Garden Sages I was one of the first 300 contributors to the plant database! I helped plan and beta test the plant database. Charter ATP Member
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RickCorey
Feb 17, 2016 1:09 PM CST
Those are gorgeous! I didn't realize that Ireland had such hot summers.
Name: Philip
Ireland,.The Midlands. (Zone 8a)
Amaryllis Clematis Cactus and Succulents Hostas Dahlias Seed Starter
Cat Lover Lilies Roses Dog Lover Cottage Gardener Garden Photography
Image
glengarry23
Feb 18, 2016 4:09 PM CST
Hi Ric,..most people outside Ireland have that impression,..from May 3rd last year we had constant temperatures from 80F then the highest was in June of 90F,..too warm for us,..between 60F and 70F we can just manage Whistling our average temperature would be 50F.

We don't have a set climate here,..Climate of Ireland - Wikipedia, the free encyclopedia
Name: Rick Corey
Everett WA 98204 (Zone 8a)
Sunset Zone 5. Koppen Csb. Eco 2f
I helped beta test the first seed swap Plant and/or Seed Trader Seed Starter Region: Pacific Northwest Photo Contest Winner: 2014 Vegetable Grower
Avid Green Pages Reviewer Garden Ideas: Master Level Garden Sages I was one of the first 300 contributors to the plant database! I helped plan and beta test the plant database. Charter ATP Member
Image
RickCorey
Feb 18, 2016 5:22 PM CST
Oh! You're temperate oceanic (Cfb) . I'm Csb - dry-summer subtropical - similar to yours but with a dry summer. I usually think of my climate as Mediterranean, but I guess it doesn't quite qualify.

Maybe my summers are also cooler than yours.
Name: Philip
Ireland,.The Midlands. (Zone 8a)
Amaryllis Clematis Cactus and Succulents Hostas Dahlias Seed Starter
Cat Lover Lilies Roses Dog Lover Cottage Gardener Garden Photography
Image
glengarry23
Feb 18, 2016 5:34 PM CST
Its interesting reading the Wiki information about our weather,..nothing extreme,..of course the rain is here almost 200 days per year,..one gets cabin fever being housebound knowing the garden needs attention but one can only look out the window and plan,..yes we have similar climates except for the wet and dry comparisons.

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