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• Small citrus trees are often called dwarf citrus trees, as they look like miniaturized versions of their full-size counterparts. Some gardeners refer to them as indoor citrus trees due to their size and proclivity for warm temperatures.
  
  

Varieties

• Growers may choose between many citrus varieties, including lemon, orange, grapefruit and lime. More exotic varieties, such as those from Asia, include kumquat and citron trees.
  
  

Living Conditions

• According to The Garden Helper, dwarf citrus trees thrive in bright sunshine, acidic soil and warm temperatures. Some varieties are more hardy than others and can withstand extreme summer heat in states such as Arizona and Texas.
  
  

Maintenance

• Small citrus trees require large quantities of water, especially in hot temperatures. According to Gourmet Gardener, growers should fertilize citrus trees with fertilizers high in nitrogen and low in potassium and phosphorous.
  
  

Pests

• Small citrus trees attract many pests, though not all are harmful. Owners should discourage ants and mites, but spiders and lady beetles presumably do them no harm, according to Gourmet Gardener.