GLENCOE, Ill. ?EUR??,,????'??? The Chicago Botanic Garden has released results of a four-year comparative study of Artemisia, or wormwood, a diverse genus of herbaceous and shrubby species from a variety of climatic regions around the world. The primary goal of the study was to observe ornamental characteristics, winter hardiness and cultural requirements of 26 Artemisia species, cultivars and garden hybrids, and to determine the best artemisias for Midwest gardens. The findings are revealed in the 19th issue of the Chicago Botanic Garden?EUR??,,????'???s ?EUR??,,????'??Plant Evaluation Notes,?EUR??,,????'?? which provides the latest information on various plant species particularly suited to the Midwest?EUR??,,????'???s tough climate and rigorous growing conditions. Artemisias come in an array of plant habits and sizes, ranging from a few inches to 8 feet tall, and spreading from 1 to 6 feet wide. Stems can be woody or herbaceous; plants can be clumping or rhizomatous, with habits that are upright, bushy, low-mounded or ground-hugging. Artemisia leaves are typically dissected; gray or white, although sometimes green; hairy and aromatic. According to the study?EUR??,,????'???s results, not all artemisias can be recommended for growing under general garden conditions. Cultural issues related to soil moisture and humidity caused some artemisias to decline during the growing season or be killed over the winter. For information on Plant Evaluation Notes, or to order a copy of Issue 19, ?EUR??,,????'??Garden-Worthy Artemisias,?EUR??,,????'?? write: Plant Evaluation Notes c/o Richard Hawke Chicago Botanic Garden 1000 Lake Cook Road Glencoe, IL 60022. Cost is $3 per copy.