Drought ()-Hort Answers - University of Illinois Extension
网页Skyblue Aster (Aster oolentangiensis, Aster azureus (Symphyotrichum oolentangiense)) Small White Aster (Aster vimineus (Symphyotrichum lateriflorum)) Smooth Aster (Aster laevis (Symphyotrichum laeve)) Sneezeweed (Helenium autumnale) Snowy campion (Silene nivea) Solomon's Seal (Polygonatum biflorum) Spiderwort (Tradescantia ohiensis)
Hort Answers - University of Illinois Extension
网页Small White Aster Aster vimineus (Symphyotrichum lateriflorum) Smokebush, Smoketree Cotinus coggygria ...
Coneflower problems ()-Hort Answers - Illinois Extension
网页Aster yellows causes a witches broom in the flower head (looks like a broccoli flower head), greening of petals sometimes, stunting and possible death of the plant. There is an eriophyid mite that causes the flower to develop lumps or bumps or …
University of Illinois Extension
网页The species has green, heart shaped leaves and small white flowers, but is usually not sold. The plant commonly sold in the cultivar 'Chameleon' which has green leaves variegated with red and cream. This cultivar also has small white flowers. Foliage has a spicy, citrus-like scent when touched.
University of Illinois Extension - web.extension.illinois.edu
网页Long, spike-like clusters of small white flowers in mid-summer. The flowers have an unpleasant odor. Culture.
Ask Extension - Acid loving plants (Flowers) - Illinois Extension
网页You will need to provide good moisture, and fertilize during the establishment period in order to get them off to a good start. Root pruning of the white pine can help, but don't cut out an area larger than 5% of the root zone at any one time. A partial list of plants preferring acidic soil includes: Amaryllis . Andromeda . Aster
University of Illinois Extension - web.extension.illinois.edu
网页Small white flowers in late spring; leaves are gray green in summer; sweet, edible, purplish black fruits. Culture Full sun; moist, well-drained soils best; tolerant of alkaline soils.
University of Illinois Extension
网页White powdery patches develop on leaves, young stems, buds, flowers and even fruit. Patches may enlarge until the entire area is covered. With time, these patches become mealy or felt like and turn gray to tan. Leaves may stunt, curl, become chlorotic and drop early. Flower buds maybe deformed.
University of Illinois Extension - web.extension.illinois.edu
网页Small black fruiting bodies of the fungus can be seen with the unaided eye at the base of needles, just under the fascicle, or sheath tissue. Fruiting bodies also form on scales of two-year-old seed cones and on bark of infected shoots. Infected stems often result in droopy candles (new growth).
University of Illinois Extension
网页Ash species, primarily white ash and green ash in both landscapes and forest stands, are susceptible to ash yellows. Ten other ash species are also reported hosts. White ash sustaines the greatests damage. The same pathogen also causes lilac witches' brooming, a decline disease of several species of lilac, particularly Japanese tree lilac.