Spider Mites

• Spider mites suck sap from leaves beginning with the lowest foliage, lightening the color of the leaves. This discoloration and fine webbing indicate that the controllable pests are present.
  
  

Normal Aging

• Leaves do normally age, turn yellow and fall off the plant in small numbers. Regularly remove any yellowing leaves and prune off weak, spindly canes to help more light reach the rose's interior.
  
  

Inadequate Light

• Indoor miniature roses require at least five or six hours of direct sunlight from west or south-facing windows. Rotate the plant every few days to ensure balanced growth.
  
  

Overwatering

• Miniature roses require consistent moisture and need a thorough soak when the top inch of soil is dry. The rose should have adequate drainage, and discard any water that flows out of the bottom of the container.
  
  

Nutrient Deficiencies

• Miniature roses suffering from a nitrogen deficiency will have old leaves that yellow first and feature spindly growth and small flowers. Old leaves that turn yellow indicate a magnesium deficiency.