Some plants will thrive on 6 hours of direct morning sun, but can’t handle the intense heat of direct afternoon sun.Many plants that are classified as growing best in “partial shade” or “partial sun” can take full morning sun, as long as they’re protected from direct afternoon sun. Latitude and elevation play a role too. Gardens in the South receive more intense sun than those in the North. And gardens at high elevations are brighter than landscapes at sea level.