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Tuesday, July 16, 2013

DAISY FLEABANE AND JAPANESE TREE LILACS

DAISY FLEABANE FLOWERS...

...DAISY FLEABANE PLANT

JAPANESE TREE LILAC, ON MANYPENNY BETWEEN 4TH  AND 5TH STS.

...DITTO, CORNER OF 2ND AND MANYPENNY

Tuesday, 8:00 AM. 69 degrees F on the porch, several  degrees cooler at the lakefront.  The N wind is very light to calm, and will shift to W and SW during the day.  The sky is clear with the usual haze over the lake.  The barometer is trending down at 30.23".  and the humidity is falling, now at 88%.
   The daisy fleabane, Erigeron annuus, in the sunflower (also called aster) family is a common annual plant along roadsides and in meadows and prairies.  The ray towers are white or pink to blue, the center disk  flowers golden yellow.  the genus has as many as two hundred species.  This particular plant reappears every year along the roadside so it  is probably an escaped garden perennial.
   The Japanese tree lilac, Syringia reticulate, in the olive family (Oleaceae) is a small tree lilac that blooms later than the common lilac and is very useful as an ornamental street tree, growing to a maximum of thirty feet or so.  Its blooms are large and beautiful but lack the appealing scent of the common lilac.   It is hardy to zone three, and is usually quite trouble free, so it has become very popular.  The hazard of courseis that if it becomes over-used it is bound to develop problems, such as borer, mildew and scale insects which are common to other members of the genus.  We have used it a lot along Bayfield streets, mostly the variety 'Ivory Silk.'
  See the City of Bayfield web site (above) forestry page for more information on our city trees.

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