
No. 02Phenology
How to read growing degree days
Every degree-day number is a recipe — a base temperature, a method, a start date and a weather station. Change one and the date moves. A working guide to reading them, and to where they mislead.
Kloro9 min read
All issues
- No. 03IndustryOctober 5, 2026Who remembers the garden?A garden takes decades to become itself. Its working memory can leave with one person. What botanical gardens can teach estate firms about preserving the reasons behind the work.

- No. 02PhenologyOctober 2, 2026How to read growing degree daysEvery degree-day number is a recipe — a base temperature, a method, a start date and a weather station. Change one and the date moves. A working guide to reading them, and to where they mislead.

- No. 01PhenologyMay 21, 2026Your garden doesn't read a calendarPlants keep time in heat, not dates. Most of the software estate firms run on still schedules by the calendar — and in Minnesota the gap between the two can be a month wide.

About Field Notes
How biology should run an estate firm — written by the team building Kloro.
Long-form notes for the people who manage high-touch gardens: the science of timing, the craft of running crews, and the decisions behind the software.
Phenology
How plants keep time — heat, not dates — and how to read the clock they actually follow.
Field operations
Running a high-touch estate firm: crews, visits, client standards and the shape of a season.
Industry
Where the green industry's tools and habits fall short of the gardens they serve.
Building Kloro
What we're building, how it works, and why we made the calls we did.
Field Notes
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Phenology, field operations and what we're building. No noise.