Secure a plant again

• Establish a fresh foothold
• Get established in a new pot
• Plant anew
• Transplant, as a plant
• Take hold again, as a plant
• Establish a new foothold
• Get established in a new planter
• Establish a better foothold

Wiktionary Word definitions in Wiktionary
vb. (context ambitransitive English) To root again, or in a new place.