Hartley Magazine

All the latest news, hints, tips and advice from our experts

Written in United States

Helping your Greenhouse Handle Heatwaves

It’s hot. Really hot! Forecasters say that temperatures here in Rhode Island could reach 100oF (38oC) with humidity to match even though summer is just beginning. Fortunately, I live on the coast, so high temperatures inland create a sea breeze that cools our local area outdoors. But inside my greenhouse is a different story. If […]

Written in United States

Water Plants Flourish in the Greenhouse

“Water adds life, movement, and sound,” says Vanca Lumsden. For fourteen years she was the owner of Pondering, an aquatic plant and supply business in Medford, Oregon. She says, “Even plants growing in still water add a whole new dimension to the greenhouse.” Whether it’s a fountain or simply containers where aquatic plants can thrive, […]

Written in United States

Where in the World Do Your Plants Come From?

One of the secrets to success with plants is simple—look at the conditions where the plant has evolved in the world and then duplicate those as close as you can. This is true of both species and the cultivars and hybrids that are derived from them. By knowing whether they grew in damp or dry […]

Written in United States

Seed Snails Welcome in the Greenhouse

Space in a greenhouse is often at a premium. Traditionally, seed starting requires room on tables for multiple containers, heat mats, etc. So, when I found out that my colleague, Seattle garden journalist and speaker, Erica Browne Grivas was working with a new space-saving method, I was interested. Basically, it involves creating long rolls of […]

Written in United States

Gardening and Microclimates

Last year the US Department of Agriculture released a new Plant Hardiness Zone Map, which is based on average minimum winter temperatures over the prior 10 years. Most locations were given a somewhat higher categorization on this new map to account for global warming. So, because of ongoing climate change, gardeners may be seeing earlier […]

Written in United States

The Colors of Winter Belong in Your Greenhouse

For more than twenty-five years, with few time-outs, I have attended Seattle’s Northwest Flower & Garden Festival. This year, in the gardens created on the show floor, I was struck by the tawny shades of winter—tan, brown, gray, and almost black—apparent in many of the displays. Not that the gardens didn’t show off massive amounts […]