Lead (Pb) is a hazardous heavy metal causing environmental pollution in various sources. A 3-factor pot experiment was conducted to asses the use of Spirulina platensis  for alleviating Pb pollution on rocket plant (Eruca vesicaria ) grown in pots (10-kg  pot^-1). Factors and treatments were  (1) Pollution (L): non-polluted (L₀) and polluted soil with 400 mg Pb kg^-1 (L₁) as PbCl₂  (2) Priming (P):none (P₀), priming (soaking) of rocket seeds  in 40 mgL^-1(P₁)  and  80 mgL^-1 (P₂) (3)  .Spirulina foliar spray  (F) :  with distilled water (F₀),  40 mg L^-1 (F₁) and 80 mgL^-1 (F₂). Spirulina alleviated contamination andincreased growth and photosynthetic pigments and activity as well as increased   activity of carboxylating enzymes (Phosphoenol pyruvate carboxylase (PEPC, EC 4.1.1.31) and ribulose1,5-bisphosphate carboxylase (RuBPC, EC 4.1.1.39) and NPK  Highest positive effect was by the the combination of foliar and soaking at 80mg/l of Spirulina platensis solution.