The fabled "Blue Amaryllis" - Worsleya procera.  Almost never seen for sale, this incredible Amaryllis relative is endangered in its homeland of Brazil, where it grows hanging from cliffs near waterfalls.  This is a challenging plant to grow, but if you can provide the right conditions, it is a treasure.

 Worsleya procera (also called Hippeastrum procerum or Worsleya rayneri) is an evergreen, bulbous plant that grows 2 to 3 feet tall, but occasionally to 5 feet.  It has unusual, arching leaves that resemble a rooster's tail.  Worsleya flowers in the summer, and can have 8 or more blooms, each about 6" long.  The breathtaking flowers are lilac-blue fading to white in the center, and are spotted with blue inside.

 Worsleya comes from a part of Brazil with moderate temperatures and cooler nights, similar to San Diego's climate.  I'm not sure how it will do in areas that regularly get above 90 degrees, especially if nights are warm.  It can tolerate a couple degrees of frost, but i recommend keeping it above 35 degrees.  It can be raised indoors in a sunny window.  The key to growing Worsleya successfully is to provide the right growing medium.  It needs very fast drainage, to simulate the rocky slopes of it's habitat.  It should not be grown in soil.  Good mediums are lava rock, pumice, or other porous rock, about 10-15 mm in size.  For moisture retention, small amounts of coconut husks, peat, or fine orchid bark can be added.  It does not need a large pot, however it needs frequent watering - about once a day.  Worsleya likes bright conditions, although some afternoon shade might be needed in warmer areas.  For more growing tips, check here.