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Exogenous application of chelants is a common way to enhance the phytoextraction of heavy metals. A pot experiment was conducted to investigate the influences of cadmium (Cd), lead (Pb), Cd and Pb, L-glutamic acid N, N-diacetic acid (GLDA) and ethylene diamine tetraacetate (EDTA) on the growth, Cd and Pb accumulation of  Sedum hybridum  ‘Immergrunchen’. The results showed that  Sedum hybridum  ‘Immergrunchen’ had a high tolerance to Pb treatment, followed by Cd-Pb treatment. The plant was sensitive to Cd stress. EDTA treatment was more harmful to plant growth than that of GLDA treatment. The optimal Cd concentration of shoot and root reached 27.6 mg·kg −1  and 32.6 mg·kg −1 , 757 mg·kg −1  and 1,025 mg·kg −1 for Pb accumulation at 100–1,500 mg·kg −1 . The maximum Cd and Pb phytoextraction from 3 mmol·kg −1  GLDA treatment were 1.40 and 1.73 times as much as that of the control, 1.21 and 1.02 times under 6 mmol·kg −1  EDTA treatment. Therefore, the enhanced phytoremediation of GLDA to Cd and Pb co-contaminated soil was better than that of EDTA. GLDA-assisted phytoextraction of Cd and Pb by  Sedum hybridum  ‘Immergrunchen’ can be considered as a promising way to phytoremediate Cd and Pb co-contaminated soil.

GLDA and EDTA assisted phytoremediation potential of Sedum hybridum ‘Immergrunchen’ for Cd and Pb contaminated soil