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  • … to choose a location for starting the seeds. Tomatoes need strong light. A south-facing window with bright sun, space for the starting containers, and a temperature in the upper 60s or 70s Fahrenheit will work. Lacking this, an interior location with the requisite temperature and a bright light source that can be on for 16 hours daily will … questions about seed starting and specific tomato varieties, please contact Plant Information Service at (847) 835-0972 or plantinfo@chicagobotanic.org for additional information. …
    Type: Plant Info
  • … of the leaf. Eventually similar symptoms appear on individual fruits, which become encased with threadlike protrusions. Small sections of twigs become covered in a hard, thickened, black … fungal growth. In severe cases, the lawn or pavement beneath an infected tree may be covered with bright orange spores. Cedars and Junipers (needled evergreen host) Yellow or orange … or quince where they land on leaves, twigs, and fruit. The spores turn into orange lesions with short, fuzzy protrusions. These protrusions release spores that are blown back to junipers, …
    Type: Plant Info
  • … of disease subsides during hot weather. The fungus survives in the soil for many years. Damage With careful watering and pruning, most plants survive verticillium wilt. Severely infected plants with widespread wilting and branch dieback may not survive. Treatment & Solutions The … Severely infected trees and shrubs should be removed. Pruners must be disinfected between cuts with a mild bleach/water solution to avoid spreading the disease to healthy tissue. Avoid …
    Type: Plant Info
  • … turf grasses and other grassy plants. Description & Symptoms Voles are tiny, mouselike rodents with stocky bodies and short legs and tails. They weigh only 1 to 2 ounces. Voles eat mainly the … the bark of trees and shrubs during the winter. Timing & Life Cycle Voles breed prolifically with many litters per year, each with about five young. They nest in shallow burrows underground or at ground level under brush or …
    Type: Plant Info
  • … LAVENDER PRINCESS™ Japanese spirea features deep pinkish lavender blooms and excellent fall color. Its leaves emerge tinged with red and become more green as the season progresses. The Spiraea japonica species includes … the initial display. The genus Spiraea consists of small to medium sized flowering shrubs with a fine-textured twiggy mounding habit. The small simple leaves are generally lance-shaped …
    Type: Garden Guide Plant
  • … also known as turk's cap lily because of the shape of the flowers. The stems stand 5 feet tall with whorled leaves and as many as 40 or 50 downfacing flowers on a single stem. The flowers are … plants surrounding the lilies will help protect their roots from drying out. Lilies make an excellent cut flower with long-lasting blooms and buds that continue to mature and open after cutting. Introduced in …
    Type: Garden Guide Plant
  • … Out at the Regenstein Fruit & Vegetable Garden, there’s a whole group of volunteers with really interesting career histories and double-digit years of volunteer service. Larry Aronson is one of them. You’re likely to find Larry on Thursdays at his favorite … he’ll not only have the answer, but he'll also add a conversation-starting fact or story to go with it. What’s his favorite pepper to eat? It changes over time. The Brazilian malagueta pepper …
    Type: Blog
  • … and other vertebrates, but fossil plants from Mongolia are very poorly studied. Together with an international group of collaborators we are studying diverse assemblages of fossil plants … primarily using scanning electron microscopy and high-resolution X-ray microtomography. The excellent preservation provides a rare opportunity to reconstruct extinct Jurassic and Cretaceous … more closely related to Mimosoideae or Papilionoideae than they are to other caesalpinioids. With these results we worked with the Legume Phylogeny Working Group (LPWG) to develop a new …
    Type: Staff bio
  • … a 2-inch layer of mulch will help retain moisture. If possible, small plants can be wrapped with burlap to protect the foliage. Also, planting evergreens in the spring and watering them … Winter Scorch " by director of horticulture Tim Johnson .   Please contact Plant Information Service at (847) 835-0972 for more information. …
    Type: Plant Info
  • … Borers spread a bacterium that infects the fleshy iris rhizome, causing a soft, spongy rot with a foul odor. Timing & Life Cycle Iris borers are the larval stage of an adult moth. The …
    Type: Plant Info