We have listed flowering plants for hummingbirds according to Zones of Hardiness. However, on a small map such as this, it is difficult to show all of the local variations and climactic changes within each zone. Most nurserymen agree that zone designations for plants are approximate. ...
Woody ornamental plants comprise a large number of genera, species, and cultivars that display a huge amount of phenotypic diversity. New introductions mainly result from natural existing variation or from selections in open-pollinated populations. Syste