Field Notes
One journal, three distinct kinds of writing: observations from the field, deeper expertise, and practical solutions that can be applied in the real world.
Field Notes
Observations, discoveries and professional reflections from Ed’s work with plants, horticulture, agriculture and the living environment.
Stop Managing Humidity by Percentage Alone: What VPD Tells You About the Plant
Relative humidity alone does not describe atmospheric demand. VPD helps explain how temperature and humidity interact with stomata, transpiration, irrigation and the root zone.
The Heat You Cannot See: Why Root-Zone Temperature Matters
Root-zone temperature affects root growth, water absorption and nutrient uptake before heat stress is obvious above ground. Here is why growers should look below…
Climate Change and Sustainability: The Role of Plants on Wellbeing Indoors
We spend about 90% of our lives indoors. Meanwhile, climate change pushes us inside even more, into cooled offices and heated homes. So the…
Flower Fashion: Cloud Dancer, Colour of the Year 2026
Once a year, Pantone selects the colour of the year. This colour should capture the mood of the moment across the world. To find…
Flower Fashion: Salix with Pink-Red Catkins
Fluffy pink catkins: so cute, and so hot. Everybody loves silky willow catkins. When you see them, you simply want to touch them. And…
Uncover Breathtaking Secrets at the Ultimate HortEx Vietnam 2027
Introduction Prepare to uncover breathtaking secrets at the ultimate HortEx Vietnam 2027, Southeast Asia’s premier trade fair for horticulture and floriculture. Following the successful…
Observations
Close observations from the field: what Ed notices in plants, cultivation, water, landscapes and the living environment — and what those details can teach us.
The Heat You Cannot See: Why Root-Zone Temperature Matters
Root-zone temperature affects root growth, water absorption and nutrient uptake before heat stress is obvious above ground. Here is why growers should look below…
Pivot Irrigation in Africa: Green Circles Against Food Insecurity
Fly over farmland in a dry region, and you may spot perfect green circles in the sand. These are pivot fields. Pivot irrigation is…
Climate Change and Sustainability: The Role of Plants on Wellbeing Indoors
We spend about 90% of our lives indoors. Meanwhile, climate change pushes us inside even more, into cooled offices and heated homes. So the…
Climate Change and Sustainability: The Role of Trees in Urban Landscaping
No machine cools a street like a tree does. Meanwhile, our cities keep getting hotter, wetter and more polluted. In an era of climate…
Expertise
Cornerstone articles that explain Ed’s professional knowledge across plants, water, agriculture and green cities.
Green Cities: Designing Urban Environments That Can Grow
Treating trees, roofs and planting as living infrastructure that can establish, mature and deliver lasting value.
Agriculture: Connecting Crops, People and Landscapes
A multidisciplinary approach to productive, resilient agriculture that fits local conditions and communities.
Water: Smarter Irrigation and Drought Resilience
Making every useful litre work harder by connecting irrigation, root health, soil, climate and practical maintenance.
Plants: Understanding Growth as a Complete System
Plant expertise begins with the complete system: roots, water, nutrition, climate, genetics and practical cultivation.
Practical Solutions
Applied projects, methods and innovations: how water, soil, plants and agricultural systems can be made to work better in practice.
Stop Managing Humidity by Percentage Alone: What VPD Tells You About the Plant
Relative humidity alone does not describe atmospheric demand. VPD helps explain how temperature and humidity interact with stomata, transpiration, irrigation and the root zone.
Why Drip Irrigation Can Still Waste Water
Drip irrigation is precise, but precision at the emitter does not guarantee efficient water use in the root zone. Soil texture, emitter spacing, irrigation…
A Bigger Tree Pit Is Not Enough: Designing Soil Space for Urban Trees
A street tree needs more than a bigger tree pit. Explore how rootable soil volume, compaction, drainage, oxygen and connected planting space determine whether…
Pivot Irrigation in Africa: Green Circles Against Food Insecurity
Fly over farmland in a dry region, and you may spot perfect green circles in the sand. These are pivot fields. Pivot irrigation is…
Climate Change and Sustainability: The Role of Trees in Urban Landscaping
No machine cools a street like a tree does. Meanwhile, our cities keep getting hotter, wetter and more polluted. In an era of climate…
Climate Change and Sustainability: The Role of Green Roofs in Urban Landscaping
Cities feel climate change first. To begin with, summers grow hotter and cloudbursts grow heavier. Meanwhile, most cities are covered in stone, asphalt and…