Oliven Dnger 250ml Olea europaea NPK Spezialdnger Rhododendron 'Gartendirektor Glocker' The Arboretum and Botanical Garden, University of Bergen, Norway This is called guttation. It occurs when there is excess pressure in the root system. At night, stomata close and transpiration stops. But roots keep absorbing water. The pressure builds until the 27.5 Inch Soft Touch Sansevieria Plant Sanseveria Plants Autograph Foliages Rhododendron gelbe Bltter was bedeutet das ?