Plant Hardiness Zones

Nine zones indicate the areas where various trees, shrubs and flowers are most likely to survive. These zones are calculated based on average climatic conditions and altitude of each area. The harshest zone is 0 and the mildest is 8. Each major zone is divided into subzones a and b (for example 3a and 3b) where zone a is slightly harsher than zone b.

Data and Resources

Additional Info

Field Value
Last Updated January 20, 2026, 00:32 (UTC)
Created January 16, 2026, 20:36 (UTC)
crisis_categories Événements climatiques extrêmes
criticality_level Élevé
data_formats JP2; OTHER; ZIP
description_fr Nine zones indicate the areas where various trees, shrubs and flowers are most likely to survive. These zones are calculated based on average climatic conditions and altitude of each area. The harshest zone is 0 and the mildest is 8. Each major zone is divided into subzones a and b (for example 3a and 3b) where zone a is slightly harsher than zone b.
fair_openness Level 2 - Machine-readable
geographic_scope Canada
opening_level Donnée ouverte au grand public
sector nature_and_environment
sensitivity_level Faible
source_inventaire Inventaire_F
source_url https://donnees.montreal.ca/fr/dataset/c747ec13-cb20-4fca-b4b1-a316a13a570a/resource/98c41567-72ff-4bd6-a734-56669f6cf2e6/download/plantation-priorites.geojson
title_fr Plant Hardiness Zones
update_frequency Selon les besoins