WebMaine spans Plant Hardiness Zones 3-6. Each zone is based on the 30-year average of the single coldest temperature recorded each winter. Zone 3 is 10 degrees F colder than Zone 4, etc. In addition, each zone is split in half. … WebIn a 20-year period, the lowest winter temperatures in Zone 17 ranged from 36 to 23°F (2 to –5°C). The lowest temperatures on record range from 30 to 20°F (–1 to –7°C). Of further interest in this heat-starved climate are the highs of summer, normally in the 60 to 75°F (16 to 24°C) range. The average highest temperature in Zone 17 ...
What’s Going On in This Graph? Growing Zones
WebPlanting natives is the best place to start when the goal is restoring ecosystems, attracting wildlife, and supporting pollinators. ... Mahonia aquifolium – Tall Oregon Grape 6-8’, sun or shade, Zone 5. Myrica californica – Pacific Wax Myrtle 10-12’, sun or shade, ... • City of Portland: Native Plant List. Oregon State University: ... WebThe varied weather of Oregon classifies the state into eleven planting zones. Oregon’s planting zones are 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b. 9a, and 9b. ... The Portland Nursery, located in Portland, Oregon, suggests planting Ice Plant, Ascot Rainbow, and Blanket Flowers in your flower garden. Consider adding Douglas firs, vine maples, or ... ctree 2023
USDA Plant Hardiness Zone Map - University of Maine Cooperative Exte…
WebA hardiness zone is a geographically defined area in which a specific category of plant life is capable of growing, as defined by climatic conditions, including its ability to withstand … WebUSDA Plant Hardiness Zone Map Portland, OR is in Zone 9a. Scroll down for more information. Your Zip: 97209 Zone: 9a (According to the new 2012 map) Zone: 8a (According to the older 1990 map) City: Portland State: OR View our Planting Calendar for your area Find gardening events in your area Check out our Plants Database WebPortland's USDA Plant Hardiness Zone is 8b, with parts of the Downtown area falling into zone 9a. Winters are cool, cloudy, and rainy. The coldest month is December with an average daily high of 46.9 °F (8.3 °C), although overnight lows usually remain above freezing by a few degrees. ... Climate data for Portland, Oregon , 1991–2024 normals ... earth telescope