Growing Degree Days Tracker
iOS app by Bernhard Hering. Weather · Bernhard Hering
- Store rating
- 3 / 5
- Store rating count
- 1
- Download price
- Free to download
- In-app purchases
- Unknown
- Version
- 1.18
- Listing last refreshed
- 2026-09-12
View the original store listing
Store description excerpt
Grassland Temperature Sum App – GTS & GDD Bloom Tracker The Grassland Temperature Sum (GTS) is a temperature-based indicator used to track seasonal development and blooming phases. It follows the same principle as Growing Degree Days (GDD), widely used in the US, and is especially well suited for early spring phenology. This app helps farmers, gardeners, beekeepers, and homesteaders understand when nature actually starts — based on accumulated heat, not calendar dates. With Grassland Temperature Sum, you can monitor temperature sums, track blooming progress, and compare seasonal development across multiple locations. Key Features • Automatic Location Detection Uses your location and regional weather data for accurate calculations. • Daily Updated Temperature Sums (GTS / GDD-based) Daily mean temperatures are accumulated from the beginning of the year. GTS is optimized for phenological development; GDD follows the standard growing degree day concept. • Bloom Calendar with Progress Indicator See which plants are currently blooming, about to bloom, or not yet active — ideal for tracking forage and nectar availability. • Monitor Multiple Locations • 1 location free • Up to 3 locations with annual subscription • Up to 10 locations with extended subscription Perfect for farms, apiaries, gardens, and homesteads. Why Temperature Sums Matter Temperature sums like GTS and GDD help assess how far the season has progressed: • Early, cold years develop slowly • Mild winters and warm springs advance bloom timing • Bloom and forage availability depend on accumulated heat, not dates Who Is This App For? • Farmers – Plan fertilization and field work based on temperature sums • Gardeners & Homesteaders – Time planting and seasonal tasks more reliably • Beekeepers – Track bloom timing of important nectar and pollen plants • Researchers & Consultants – Use temperature-based indicators for analysis Grassland Temperature Sum gives you a clear, location-based view of seasonal development — using GTS and GDD principles to help you make better timing decisions. Terms and conditions: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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