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  • … can hitch a ride on the leaves. Deal with them now, and you’ll eliminate potential problems over the winter months. Tiddens has a very large, potted citrus tree that spends the summer … to take action. After spraying the soil with an insecticidal soap, he placed a sheet of foil over the soil surface and over the pot’s rim. “I sprayed the top soil layer with the soap solution all winter long.” …
    Type: Plant Info
  • … Europe through Asia. While still common in some wild areas, the orchid’s beauty has made it over-loved in others—it is now considered extinct in Greece, the very home of its ancient legend. … but also took a toll on the native plants of the English countryside. Loss of habitat and over-collection by humans diminished the numbers of the native lady’s slipper orchid until, in …
    Type: Blog
  • … nursery in Potsdam-Bornim, Germany. The nursery focused on breeding hardy perennials from all over the world. Foerster successfully bred approximately 370 crosses, with a particular interest … is another perennial that remains popular today. Foerster’s nursery endured difficult times over the years yet managed to survive the Great Depression and World War II, during which he is … of  Calamagrostis  ×  acutiflora  ‘Karl Foerster’ are the 5-foot flower stems that tower over a shorter but dense clump of narrow leaves. Purple-tinged plumes of flowers emerge in late …
    Type: Blog
  • … very old ancestor that migrated from North America to Europe. The oaks of China have diverged over very long time periods into several related genera. Quercus is the largest tree genus in the … Pacific Northwest. Oaks can reach very old age. Trees in Europe have documented ages of well over 1,000 years; a southern live oak in South Carolina has reached 1,500 years in age and the clonally propagated, suckering oaks of the desert southwest are estimated to be well over 1,000 years old. They have been part of human culture for millennia wherever they are found. …
    Type: Blog
  • … see new growth starting again, move the bulbs to a sunny location, and start the process all over again. As they age, amaryllis bulbs will get larger and larger, sometimes splitting into … location—the same type of environment an amaryllis prefers. Special care must be taken to not over water these, as they dislike having wet feet. In addition to the classic white flowers, a … plant is capable of producing dozens, sometimes nearly 100, blooms that open slowly over the course of the entire season, giving you several months of blooms. Because the buds are …
    Type: Blog
  • … wet and then freeze, cracks can form. Containers made from fiberglass and plastic will degrade over time if they’re in direct sunlight, so check these for damage and move inside if you’re … containers will last much longer if you have stored them out of the elements over winter. (Make a mental note for next winter.) You can use soil bags to lightly cover …
    Type: Blog
  • … books and articles about biodiversity and make them freely available to access and use. Over the past ten years, BHL has uploaded more than 50 million pages of biodiversity literature … By making this material available online for free, scientists and researchers from all over the world can have access to research needed to make new discoveries. This is especially …
    Type: Blog
  • … Susan, New England aster, and aromatic aster. Now that the REU internship program is over for the year, Imeña is preparing to collect data on the fall-blooming aster species.  Early … more stark differences for the New England aster than for the aromatic aster. Data collected over additional years will allow for greater clarity and confidence in our conclusions. …
    Type: Blog
  • … I thought to myself, “Wow! That was a really good program!” And it was. It was  really  good. Over the course of the summer, these vets returned to the Garden five more times to participate … But with love and care and attention, we can grow, we can bloom, we can be well. Gardens start over and each year is a new year. We can start over, too, and each day is a new day. Vets plant rain or shine in Operation Summer Change-Out. I …
    Type: Blog
  • … year; no time-consuming fertilizing or deadheading required! Spread a 3-inch layer of compost over the garden soil (not the crowns of the plants) every year about mid-May, after the bulbs … fall, after the perennials have been cut down and the ground is frozen. This protects plants over winter and improves the soil as it breaks down. Staking Put supports in place before plants …
    Type: Plant Info