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Danger signs of trees toppling, dropping branches


Look up at the limbs of redwoods and other evergreens to make sure no broken or damaged branches are about to fall.
(Photo: Debbie Arrington)
What to watch during wet, windy winter weather before things fall



What can make a massive 80-foot redwood topple over? Saturated soil and a strong gust of wind.

Sacramento has seen both this week as an atmospheric river pushed through record amounts of rain, accompanied by wicked winds.

According to the National Weather Service, Sacramento Executive Airport received a record 2.11 inches Wednesday, eclipsing the 1.22-inch mark for that date set back in 1979. Another 1 to 2 inches is forecast for Thursday and Friday, with wind gusts of 40 to 50 mph.

In such wet and windy weather, trees can be dangerous. They can drop limbs or uproot completely.

Years of drought have shrunk the root balls of many big trees, particularly coastal redwoods, making them especially vulnerable.

During these winter conditions, evergreens are at greatest risk. That includes redwood, pine, fir, spruce, juniper, cypress, yew and other trees that retain their foliage year round. Needles become saturated with rain, doubling or tripling their weight; that strains the branches and makes the whole tree top heavy. Foliage also is more apt to catch wind than bare branches.

Trees that grow close together offer each other support; their roots become intertwined and they hold each other up. Solitary lawn trees are more likely to fall.

So are trees that withered away during years of drought including elms, birches and other deciduous trees. Strong winds will knock dead or dying branches off trees of any kind.

What are the danger signs?

Some are obvious. The tree starts leaning; that’s not good. Cracks in the soil around the base of a tree may indicate root movement; that means it’s losing its stability.

Look up; are broken branches dangling above or caught in other branches? Are heavy limbs starting to droop down precariously? Are there signs of branches starting to separate at the trunk? Take photos and get help.

In these cases, call a certified arborist immediately. Rope off the area around the tree and stay off the surrounding soil until help comes. The tree may be stabilized before it actually falls.

For more advice on trees, contact the Sacramento Tree Foundation,
www.sactree.com .

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Garden Checklist for week of Dec. 8

Make the most of dry weather while we have it this week. Rain is returning.

* Rake leaves away from storm drains and gutters. Recycle those leaves as mulch or add to compost.

* It’s not too late to plant something. Seed wildflowers and plant such spring bloomers as sweet pea, sweet alyssum and bachelor buttons.

* Trees and shrubs can be planted now, especially bare-root varieties such as fruit trees or rose bushes. This gives them plenty of time for root development before spring growth. They also benefit from winter rains.

* Plant bare-root berries, kiwifruit, grapes, artichokes, horseradish and rhubarb.

* Set out cool-weather annuals such as pansies and snapdragons.

* Lettuce, cabbage and broccoli also can be planted now.

* Brighten the holidays with winter bloomers such as poinsettias, amaryllis, calendulas, Iceland poppies, pansies and primroses.

* Keep poinsettias in a sunny, warm location; bring them inside at night or if there’s rain.

* Plant garlic and onions.

* Prune non-flowering trees and shrubs while they’re dormant.

* Clean and sharpen garden tools before storing for the winter.

* Mulch, water and cover tender plants to protect them during threat of frost. Succulent plants are at particular risk if temperatures drop below freezing. Make sure to remove coverings during the day.

* Rake and remove dead leaves and stems from dormant perennials.

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