… landscape rose for four-season interest." Mr. Radler germinated the first Knock Out seed in his basement during the winter of 1988–89, and that spring he planted the small shrub outside in his garden. The following 11 years were spent overseeing bud grafting, testing, and production … committee and declared a winner in 1997. Knock Out became available to the public with 250,000 plants in production. And a star was born. Knock Out is a four-season winner that will …
Type: Plant Info
Type: Event for Calendar
… Tayton Squash pear ( Pyrus communis 'Taynton Squash') trees are the subjects of an interesting test. The Garden’s plant health care team has sprayed them with natural clay to create a barrier …
Type: Garden Guide Plant
… This beautiful shrub grows up to 5 feet high with full sun and moderate moisture conditions. In June, it produces clusters of up to six light pink, double roses that are unfortunately not fragrant. In tests and trials, it has consistently been noted as the most disease-resistant rose in the trials. …
Type: Garden Guide Plant
… The plant's deep green, triangular lanceolate leaves are ornamented with white spots in transverse bands. This succulent can tolerate some shade and is found in nature growing on north and east cliff faces. Potting medium has to be very well drained. This … century. The specific epithet (species name) of ox's tongue honors a Mr. Bates, who was a London trolley driver and noted collector of South African succulents. 가스테리아. 즙이 풍부하고, ‘소의 혀’라는 …
Type: Garden Guide Plant
… near the veins remaining bright green, can be caused by a deficiency of iron or manganese in the soil. It also can be caused by alkaline, compacted or waterlogged soils, pollution and other environmental causes. The plants in our area most susceptible to iron deficiency are the white and pin oaks, hollies, certain … cherry, dogwoods, maples (especially red and sugar) and the sargent crab. First, take a soil test of the area and follow the recommendations included. Soil-testing agencies are also able to …
Type: Plant Info
… the Year, Accolade™ elm is one of the top-performing trees for urban and residential planting in the Chicago region. This hybrid elm provides the iconic vase-shape American elm habit but is … as a street tree. Unlike the widely planted Norway maple, miyabe maple is not invasive in our region and should be planted as a replacement for ash or Norway maple. Exclamation! ™ London planetree ( Platanus x acerifolia 'Morton Circle') Selected for its uniform, upright …
Type: Plant Info
… I just returned from two weeks in Mongolia searching for fossil flowers. Why go halfway around the world to look for fossils of … it doesn’t get any better than this! A little background first. Mongolia is a large country in Central Asia with a population very close in size to the city of Chicago (Mongolia: 2.89 million; Chicago: 2.71 million). But that is where …
Type: Blog
… oak trees, the three-fingered hand shapes are maple leaves, those little oval leaves marching in a double line along a stem are from an ash—boo yah! OK, now do it without any leaves. And yes, … thought the trick was looking at the tree’s habit—its size and shape. But no—especially not in a natural woodland like this. A tree’s habit depends on where it is growing—how crowded it is … on what is given to it,” he said as we walked into the woods. “You can probably get 100 trees in a row, but it’s like a fingerprint. They all have different spaces, different light; they’re …
Type: Blog
… When a coyote pirouettes in the snow, you start to wonder. Where was it going? And what made it turn? After a big snow, I love looking for wildlife tracks and the stories they tell. The paw prints and other tracks in the snow are among the small wonders of winter. In a recent blog, we talked about finding awe on winter walks—turning attention outside yourself …
Type: Blog
