Average Date When Lilacs Bloom in Idaho

This GIS digital data set portrays the average date when lilacs start bloom in Idaho. Information on dates when plants and animals reach various stages in their development is referred to as phenological data. The purple common lilac (Syringa vulgaris L.) was chosen as the indicator of plant development in western regional phenological studies because it is well adapted and widely distributed throughout the Western United States. Approximately 160 observers scattered throughout Idaho observed the dates of lilac bloom for the 10 years of data used as a base for this study (from 1957 to 1966). Without the unselfish dedication of these volunteers this study would not have been possible.

Data and Resources

Field Value
accessLevel public
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier https://geocatalog-uidaho.hub.arcgis.com/datasets/fcf608df8f4649838bd34527af8823d0_0
issued 2017-12-13T19:54:19.000Z
landingPage https://geocatalog-uidaho.hub.arcgis.com/datasets/fcf608df8f4649838bd34527af8823d0_0
license https://geocatalog-uidaho.hub.arcgis.com/datasets/fcf608df8f4649838bd34527af8823d0_0/license.json
metadata_type geospatial
modified 2020-08-13T19:39:03.000Z
publisher University of Idaho
resource-type Dataset
source_datajson_identifier true
source_hash 48c45ca008ff71e91070500824b22de68821c6c7
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-117.117, 41.9461], [-110.6554, 41.9461], [-110.6554, 48.9908], [-117.117, 48.9908], [-117.117, 41.9461]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • biota
  • ckan
  • geo
  • geoss
  • lilac-bloom
  • national
  • north-america
  • phenology
  • syringa-vulgaris-l
  • united-states
isopen False
license_id other-license-specified
license_title other-license-specified
maintainer uofilibrary_uidaho
metadata_created 2025-11-21T14:20:44.880279
metadata_modified 2025-11-21T14:20:44.880283
notes This GIS digital data set portrays the average date when lilacs start bloom in Idaho. Information on dates when plants and animals reach various stages in their development is referred to as phenological data. The purple common lilac (Syringa vulgaris L.) was chosen as the indicator of plant development in western regional phenological studies because it is well adapted and widely distributed throughout the Western United States. Approximately 160 observers scattered throughout Idaho observed the dates of lilac bloom for the 10 years of data used as a base for this study (from 1957 to 1966). Without the unselfish dedication of these volunteers this study would not have been possible.
num_resources 6
num_tags 12
title Average Date When Lilacs Bloom in Idaho