Key lime Citrus aurantifolia, also commonly called Mexican lime or West Indian lime.
Jan 14, Improper watering or poor soil drainage around the Key lime's roots can contribute to a lime tree losing leaves. Over-watering is a common cause of Key lime leaf yellowing and drop.
Mature, established Key lime trees require supplemental watering only during periods of extended drought.
Jan 21, Nitrogen deficiency - shows as yellowing of older leaves in the tree's foliage. You can add special nitrogen-boosted fertiliser in your feeding to help resolve it.
Zinc or iron deficiency - shows as yellowing of new leaves with green veins. To fix this, use a Estimated Reading Time: 5 mins. Identification tip: Leaf yellowing and dropping on lime tree, bronzing, or browning of leaves and premature foliage drop can be due to excess sodium. High overall salinity or an excess of either sodium or chlorine can cause this leaf damage or general symptoms throughout the tree resembling drought stress, such as stunted growth.
Large “Bleached Out” or Yellow Patches on Individual Leaves: Causes: Sun-scorch of leaves most directly exposed to the sun during late spring, summer and early fall. Can be distinguished from salt burn in that sun scorch occurs mostly on the south and west sides of the tree.