Ask the Gardener: Have hemlocks had their day in the Northeast? Carol Stocker - Globe Correspondent June 30, 2021 11:31 am
What to do this week Move potted houseplants outside to a partly shady spot out of the wind for their summer vacations and group them for easier watering. Be sure to add drainage holes or gravel to the bottom of the containers so the roots don’t drown. Give new plantings, including trees and shrubs, an inch of water weekly, preferably in the early morning. Growing tomatoes in cages is a good compromise between staking and sprawling. Snip small suckers from between the branches of tomato plants and remove foliage shading ripening fruit. Apply water-soluble organic fertilizer monthly. Be sure to pull invasive plants such as garlic mustard before they go to seed. Watering an area beforehand makes weeding easier. If you have trouble telling weeds from flowers, remember most weeds are shallow-rooted annuals that respond to a gentle tug. Maintaining lawns
La ville en débat Pollution de l air à Strasbourg : 30 médecins réclament des actes
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TRIBUNE - Zone à faibles émissions, interdiction du diesel à Strasbourg : les médecins veulent des actes
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Jim Morrison Boston.com Correspondent January 7, 2021 6:56 am
George Barth, an arborist and plant health care manager for Needham landscape management firm and Davey company affiliate Hartney Greymont, tells writer Jimmy Morrison how the chemicals used to melt snow and ice on driveways, walks, and patios can harm plants and shares tips on how to protect them:
(This interview has been edited for clarity and condensed.)
Q. How does salt hurt plants?
A. Salt that hits plant tissues like twigs and buds has an extreme impact. It causes leaf distortion and discoloration and can affect next year’s buds. Even worse is damage to the root zone from salt leaching into the soil. That decreases nutrient absorption and reduces available water. It can burn the root zone and decreases the root system for the next season. It also impacts the nutritional side of the soil. There are a lot of organisms in the soil. People think dirt is just dirt, but it’s a very complex organism.