The Green Corner by Prince's Landscape is a garden centre in Choa Chu Kang, Singapore, rated 4.8 from 203 Google reviews.
A good garden centre is judged on the health of its plants, the quality of its advice, and how well its stock suits the local climate. Check that plants look healthy: leaves should be even in colour, with no sticky residue or webbing underneath, and roots should not be pushing out of the base of the pot. Ask staff how much light and water a plant needs, since a plant that suits a shaded balcony may struggle in full sun. In Singapore's heat and rain, drainage matters as much as the plant, so check that each pot has holes and that the soil is not waterlogged. Regulars often bring measurements of their space, because a plant that fits the spot is easier to keep alive.
Choa Chu Kang is a residential town with many landed homes and HDB flats, so the centre suits people who want plants for gardens, balconies and small terraces.