Toxic Holiday Plants

Poinsettia flowers make good cut flowers but are mildly toxic.

To kick off this year’s holiday season I plan to add some color to cheer up my houseplant selection. Sometimes I give friends and neighbors a holiday plant but I need to keep in mind if they have small children or pets as some of our favorites are toxic. Here’s what to know about those colorful plants available for the holidays.

Some years I have paper white narcissus decorating my house during the holidays. At other times I’ve had a pink jasmine wreath or one with holly, ivy and evergreens inside. Lovely cyclamen plants are available everywhere as are poinsettia. Christmas cactus are blooming at this time of year also. Which of these plants do I need to watch out for?

The classic plant to decorate our homes at this time of year is the poinsettia. Are poinsettia poisonous? Ohio State University conducted extensive research and concluded that although poinsettia sap from leaves and flowers might give you a stomach ache if you ate them they won’t seriously hurt you. The sap may cause a rash if it comes in contact with the skin on some people. With this in mind, you should keep poinsettia plants out of the reach of curious pets and small children.

Poinsettia do hold up well either as a cut flower or a living plant. Mostly it’s too cold here in the mountains for poinsettia to survive outside at night being native to Mexico but they thrive in the warmth of the house. They need a bright spot and the soil should be allowed to dry slightly, but not completely, between waterings. Deprive them of either of these requirements and the lower leaves will yellow and drop. Also be sure they aren’t sitting in water at the bottom of the container. Poinsettia are brittle and if you break off a branch, sear the end of the stem with a flame and it will hold up quite well in a vase or arrangement.

According to the Pet Poison Helpline cyclamen are mild to moderately toxic to dogs and cats if ingested but it’s the root or corm that is especially toxic if ingested in large quantities. Pets and people react differently and it is unlikely that children) would eat the corm and be affected.

My beautiful amaryllis flower and leaves are safe but the bulb is toxic. Amaryllis bulbs contain the same alkaloid that is found in narcissus and daffodil and is the reason deer know to leave them alone. Ingesting a small amount will produce few or no symptoms, however.

Azalea leaves are toxic and should be kept away from pets and small children. Holly berries are toxic if eaten in large quantities. Same for mistletoe, ivy and pink jasmine. Christmas cactus are safe except the berries from a pollinated flower.

Mistletoe contains multiple substances that are toxic to both dogs and cats, It can cause severe intestinal upset as well as a sudden and sever drop in blood pressure, breathing problems and even sometimes hallucinations. If a large amount of mistletoe or ivy is ingested, seizures and death may follow. The leaves and berries of holly and mistletoe plants, even dried, should be kept well out of your pet’s reach.

You can spray a plant with cayenne pepper dissolved in water if your pet is especially persistent to discourage them. While serious complications aren’t likely with holiday plants it’s still best to keep them away from small children and out of your pet’s reach.

Thoughts for the Garden after Thanksgiving

Hummingbirds feed on this Flowering Maple all day long now that most flowers have finished blooming for the season.

The weekend after Thanksgiving I like to get my Christmas tree and put it outside in a bucket of water until I’m ready to bring it inside to decorate. One of my friends has the solution for the longest lasting tree with the most natural decorations ever. She keeps hers on a covered porch just outside a huge wall of glass so it’s visible from inside. I may just try that myself and use only decorations found in nature although one time I used millet sprays and cranberry garland which the squirrels and raccoon discovered the first night. Maybe dried hydrangeas would be better.

I should probably do something productive this weekend but what? Should I be good and do a little light weeding now that we’ve had some rain and they have started to germinate? Maybe I can muster up the energy to plant a few more bulbs. Come spring I’ll be happy I did. Then again I could make notes of my gardening successes and not so great horticultural decisions. “I know”, I say to myself, “this weekend I’ll revel in what I don’t have to do in the garden”.

I don’t need to prune trees and shrubs at this time of year. Other than clipping a few well placed branches to use in a holiday wreath, I’m off the hook for this task right now. Deciduous trees are still in the process of losing their leaves and are not fully dormant. Evergreens shrubs and conifers can be trimmed lightly but most shaping is done when they start growing in late winter or very early spring.

The season is pretty much over for me except to enjoy what’s left of fall color and the ornamental grasses waving their seed heads in the wind. A lot of perennials are dying back but I’m not in a hurry to neaten things up. The seed heads left in the garden supply food for birds and other creatures while the foliage provides shelter for the plant in the cold and frost. Remove anything that has turned slimy or just plain unattractive but leave berries and seed heads for food and winter interest.

At this time of year, your garden might be visited by chickadees, nuthatches, Lesser goldfinches, purple finches or warblers. They spend the winter here and you’ll be doing them a big favor by not cutting back brown foliage containing nutrient-rich seed heads. Some of the reliable seed producers that you won’t have to clean up this weekend include artemisia, aster, coreopsis, penstemon, sedum, lupine, salvia, black-eye Susan, coneflower, phlomis, monarda, agapanthus and grasses.

Chickadees gather hundreds of seeds in fall and early winter and store them in hiding places to ensure themselves a food supply later in the season. They are a remarkable bird that we take for granted being so common. I read in Audubon magazine a couple years ago that a chickadee weighs about as much as a dozen paperclips but their body is large for their weight. This means they have to ramp up the number of hours they devote to feeding. At night chickadees cram themselves into tiny cavities and shiver, burning the day’s fuel to keep from freezing.

Hummingbirds still need a nectar source at this time of year. Anna’s hummingbirds live in this area all year long. So In addition to the plants in the garden that supply nectar, keep your feeders up year-round and keep them clean. Hummingbirds need your nectar even more in the winter when very little is in bloom. In addition to nectar-rich natives like mahonia my abutilons are a winter favorite for them.

Other tasks I can put off at least for this weekend include planting wildflower seeds. I see California poppies coming up all over the place. Nature knows when the time is right. Well, maybe I’ll broadcast a few working them into the soil very lightly. I need to hoe off some early weeds that would compete with them. How many calories are burned in light gardening tasks? I might just reconsider not being a total couch potato this weekend.

A Poem of Thanksgiving

Once upon a time when our area was under water
there were no parks or trails or trees or gardens.
I’m thankful that our mountains rose from an ancient ocean
so we could enjoy this beautiful place we call home.

I’m thankful for the Big-Leaf maples
that shower me with leaves as big as saucers
as I walk in Henry Cowell along the river trail
and for the giant redwoods that sprouted long ago
at the time of he Mayan civilization.

I’m thankful for the Five-fingered ferns that grow lush along
the lower parts of Fall Creek
and for the canyons, hiking trails and small waterfalls
that feed the year-round creek.

I’m thankful for the Covered Bridge in Felton,
for the violinist who serenades us as walk over the river
for the sound of children laughing as they play in the park
and the gentle horses who live at the equestrian center.

I’m thankful for all our other parks like Garrahan and Junction Park in Boulder Creek,
Highlands Park in Ben Lomond, and Sky Park, Lodato, MacDorsa, Siltanen
and Hocus Pocus in Scotts Valley,

I’m thankful for the western turtles who live at the Quail Hollow pond
and for the unique sand hills, grasslands, wildflowers, oaks, redwoods
and for the unique plants, birds and other small creatures that live only there.

I’m thankful for Bonny Doon where you can see both the Pacific Ocean
and the San Lorenzo and Scotts Valleys
for the resilience of the people recovering after the fire
on the mountain made of sandstone and shale.

I’m thankful that Big Basin State Park, where redwood sorrel, violets and mountain iris
once covered the slopes and lush canyons and is recovering
as are the salamanders, banana slugs, marbled murrelets
and red-legged frogs who make it their home.

I’m thankful for the whisper of the wind blowing across the water at Loch Lomond
And for the gentle whir of fishing reels, the inlets accessible by quiet boats and trails
where you can enjoy the tanoak, redwood and madrone.

And finally, I’m thankful for friends and family and neighbors who share all this with me.
There’s always something to be grateful for. I wish you all a Happy Thanksgiving.

The Mountain Gardener's Weblog