What's blooming this week

Lee Poulsen wpoulsen@pacbell.net
Mon, 08 Apr 2013 21:06:40 PDT
I have always attributed this to the fact that since the last ice age ended a mere 12,000 years ago, all the Mediterranean and North American Pacific Coast bulbs must have endured much colder temperatures than they do now, since 12,000 years isn't close to enough time for all these species to have evolved to only be able to withstand the relatively warmer winters they now grow in. You can easily Google a map of what the Earth looked like during the height of the last ice age and see how much closer the ice cap got to these areas back then not so long ago in evolutionary terms.

--Lee Poulsen
Pasadena, California, USA - USDA Zone 10a
Latitude 34°N, Altitude 1150 ft/350 m

On Apr 7, 2013, at 5:25 PM, Jane McGary wrote:

>  I think many 
> Mediterranean bulbs and other plants can tolerate more cold than they 
> normally experience in their native habitat. This is also true of 
> North American Pacific Coast bulbs and shrubs.

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