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Growing degrees (GDs) is defined as the number of temperature degrees above a certain threshold base temperature, which varies among crop species. The base temperature is that temperature below which plant growth is zero. GDs are calculated each day as maximum temperature plus the minimum temperature divided by 2, minus the base temperature.
10-10-10 fertilizer has equal parts nitrogen, phosphorus, and potassium. Learn about liquid and granular 10-10-10 fertilizer and when and how to use them.
Tender plants are those killed by freezing temperatures, while hardy plants survive freezing—at least down to certain temperatures, depending on the plant. "Half-hardy" is a term used sometimes in horticulture to describe bedding plants which are sown in heat in winter or early spring, and planted outside after all danger of frost has passed.
Pieris brassicae caterpillars damaging a Brassica crop. Animals that commonly cause injury to plants include pests such as insects, mites, and nematodes.These variously bite or abrade plant parts such as leaves, stems, and roots, or as is common among the true bugs, pierce the plant's surface and suck plant juices.
This beautiful plant is summer-hardy, fragrant, and attracts pollinators, making it an excellent choice for nearly any garden. Late spring is an ideal time to plant, starting with young plants as ...
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Map of average growing season length from "Geography of Ohio," 1923. A season is a division of the year marked by changes in weather, ecology, and the amount of daylight. The growing season is that portion of the year in which local conditions (i.e. rainfall, temperature, daylight) permit normal plant growth.
A chilling unit in agriculture is a metric of a plant's exposure to chilling temperatures. Chilling temperatures extend from freezing point to, depending on the model, 7 °C (45 °F) or even 16 °C (60 °F). [3] Stone fruit trees and certain other plants of temperate climate develop next year's buds in the summer.