Royal Botanic Gardens, Kew, is looking for a supplier for a major new planting project.
The Broadwalk Borders Project will see two new herbaceous borders created, each more than 300m long.
The gardens in south west London is looking for the supply and delivery of perennials between September 2015 and 2016.
The contract, which runs from 14 June to 31 July 2016 is in three lots: perennials (container size P9), perennials (container size 2 litre) and grasses, with an estimated total value of between £100,000 and £150,000.
To receive the tender pack contact the Royal Botanic Gardens, Kew on firstname.lastname@example.org, or call Amy Barber on 020 8332 5816.
The final deadline for tenders is 27 February at 2pm.