David Shubin, a UC Master Gardener of Napa County and International Society of Arboriculture Certified Arborist, described his recent experiences at the Royal Botanical Garden in Edinburgh, Scotland, in an article released on May 1. Shubin said that the trip highlighted how climate differences shape landscape design and maintenance between Napa Valley and Scotland.
The article underscores the importance of understanding local environmental conditions for effective horticulture. Shubin noted that while his work in Napa often focuses on water conservation due to long dry summers, Scotland’s consistent rainfall creates different challenges such as moss growth on pathways.
Shubin observed that Scottish arborists use similar communication and teamwork as their counterparts in California when working with large trees. “Whether in Scotland or California, arborists follow practices set by the International Society of Arboriculture (ISA) and rely on the same communication, trust and awareness to work safely in large trees,” he said. He also remarked on pruning techniques focused more on safety and longevity than aggressive shaping: “The canopies retained their natural form, suggesting a long-term preservation mindset rather than short-term control.” Dead trees were left standing when safe to do so to provide habitat for wildlife.
Differences extended beyond tree care. Shubin noted that deciduous hedges are common features at Edinburgh’s gardens despite losing leaves seasonally—a practice less favored by clients in Napa seeking year-round privacy from evergreens. Wildlife observations included pigeons larger than those typically seen locally.
University of California Agriculture and Natural Resources secures funding through public contributions to support its programs according to the official website. The organization promotes sustainable practices designed to strengthen resilient ecosystems and economic vitality according to the official website. It utilizes nine research and extension centers across California representing diverse ecosystems according to the official website, conducts over 33,810 educational events annually with more than 18,420 volunteers engaged according to the official website, manages Cooperative Extension services as part of the University of California system according to the official website, and has gained recognition for linking research with community needs according to the official website.
Shubin concluded that while gardening approaches may differ between regions like Napa Valley and Edinburgh due to climate variations, core principles remain consistent: “observe carefully, respond to conditions and work with natural systems.” Upcoming events hosted by UC Master Gardeners include talks about corn cultivation findings via Zoom on May 7; a guided tree walk at Fuller Park on May 8; a composting workshop at Napa Valley College’s Upper Valley Campus on May 16; as well as regular help desk hours for gardening questions.