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Can plants thru generations change climates?

September 8 2017 at 10:58 AM

Cathy P (Downers Grove, IL Zone 5b)  (Login Bazuhi)
Hummingbird Lover 2014

Since I am very clueless about plants etc then what
I have done myself. I have no clue what I am reading
when I tried to research it.
Can a plant eventually adapt to a new climate?
Can a new plant emerge from old plants that can
live in a new climate.
I want to do experiments with my salvia guarantica since
I have many many volunteers, this year I may cover many of them
to have the for next year in a larger size. (I have to make money
someway to get anything new for the gardens)
I was wondering if I should try and see if any can make it since
I do have one I didn't cover last winter and it did come back.
Cathy P
A Hummingbird Fan in Downers Grove, Illinois
Zone 5a
See My Hummingbird Gardens and Plants

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Ward Dasey
(Login WardDas)
Hummingbird Moderator 2005

Re: Can plants thru generations change climates?

September 8 2017, 1:40 PM 

An individual plant not so much but you never know about seedlings. Each seedling is a little different and one could be hardier. Adding two zones of hardiness to guaranitica is probably asking a lot but why not.


Kathi and Michael Rock
(Login kathirock)
Hummingbird Member 2006

Re: Can plants thru generations change climates?

September 8 2017, 2:13 PM 

We had many salvias reseed this spring (after a milder than usual winter), but the most surprising was Salvia 'Big Swing', typically a very tender salvia that dies even before the first frost. I dug up the seedling and put it in a pot and it is growing very vigorously. Any tender salvia that can reseed in or survive in our brutally cold winters is one tough plant.
Michael and Kathi Rock
Madison, WI
Zone 5

[linked image]


(Login RonDEZone7a)
Hummingbirder 2008

Re: Can plants thru generations change climates?

September 8 2017, 5:22 PM 

It always amazes me how tiny seeds survive the winter when the actual plant often doesn't. My cannas only survive the winter, in ground, if they are right up against my house - those away from the house usually don't come back. But seedling canna plants, from the previous year's seeds, pop up anywhere. I guess seeds are engineered to survive extremes of weather better than the actual plants (or even bulbs).

[linked image]

Similarly, plants like Tropical Milkweed (Asclepias curassavica) and Salvia greggii 'Lady in Red' do not survive the winter here, but their seeds do and they pop up randomly everywhere the next spring. So... I guess it's not so unusual for seeds to be hardier than plants... many examples of this, come to think of it!
Wilmington, Delaware
USDA zone 7a
Heat zone 6
Sunset zone 32
[linked image]

This message has been edited by RonDEZone7a on Sep 8, 2017 5:31 PM

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