a forum for any general garden topic or question

Book for Review

I'm  in charge of the NARGS Book of the Month and boy,  do I have a gorgeous book for someone to review.  It's The Golden Age of Botanical Art  by Martyn Rix. The pictures are exquisite and are primarily from the mid 1700's to mid 1800's although earlier and later periods are included.  The pictures are supplemented with information about the artist and their era.  

Recycled concrete

I have a large amount of recycled concrete from a slab that was broken up, and I am using it to make terraces on a southwest slope in the maritime PNW.

So, the conditions are hot, dry in summer, but wet in winter, zone 7, alkaline, and vertical.  I am looking for suggestions on how to build the walls so that I can grow small plants in them, and ideas on what plants would do well or be particularly interesting or attractive.

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