Apr. 25, 2017

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Wild lupine is elaborately adapted to dry open sites.  It does well in sandy sites with low nutrition because of the nitrogen fixing nodules on the roots.  Such sites were historically maintained by fire.  Lupines have developed seeds that are hard and can survive fire.  They also need fire to germinate well.  This last characteristic is now to their disadvantage since we have tried to reduce wildfires.  One of the recent controlled burns at Ives Preserve was in an area where they are trying to encourage lupines.