Teo Spengler
Raised in Alaska, where the sun never rises in the winter and the trees are stunted by permafrost, Teo Spengler fell in love with plants when she moved to California for college. Gardening became more of a passion than a passtime, as she studied horticulture and took master gardening courses. Spengler completed an intensive sixteen-week program to qualify as a docent at the San Francisco Botanical Garden and has given public tours there for some years. (She has also earned a BA in politics, an MA in English, an MFA in creative writing, and a JD from Berkeley Law School). She has written about nature, trees, plants, and gardening for 20 years for a variety of websites including Gardening Know How, Hunker, Home Guides, San Francisco Chronicle and Gardening Guides as well as publishing two novels. Spengler currently splits her life between San Francisco and the French Basque Country where she has practiced her skills in both personal and public gardens for the past two decades. Her extended family includes some 30 houseplants and hundreds of outdoor plants, including 250 trees - mostly oaks, birches and beeches - that she planted on her land in France.
Latest articles by Teo Spengler
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What Causes Brown Edges Or Brown Tips On Leaves?
When you see brown tips on plants and leaves, it’s time to investigate. Of all the possible reasons for brown tips on leaves, one of them will probably become obvious. Put on your Sherlock Holmes hat.
By Heather Rhoades
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How To Create A Newt Habitat For Exotic Garden Wildlife
If you create a newt habitat, you’ll give your wildlife garden a boost while making friends with some highly engaging animals. We show you how easy it is to make room for newts
By Teo Spengler
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Lemon Tree Care: How To Grow A Lemon Tree
Once you know how to grow a lemon tree you’ll never want to be without one. In the home garden or in a pot, lemon trees are one of life’s delights.
By Nikki Tilley
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Do Indoor Plants Improve Air Quality? What The Scientists Say
We’ve heard about snake plant oxygen and indoor plants that improve air quality. They may help some, but there’s more to know about the studies.
By Teo Spengler
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Seed Soaking: Tips For Soaking Seeds Before Planting
Soaking seeds before planting is the best way to germinate certain types of seeds, but not necessarily others. Knowing the basics will help.
By Heather Rhoades
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WHAT IS ROOTSTOCK? HOW AND WHY TO USE ROOTSTOCK
It’s fascinating how rootstock for grafting results in stronger trees that bear better fruit. You may not be a professional grower, but knowing how this works will make you a better-informed consumer.
By Teo Spengler
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How To Correct Nitrogen Deficiency in Soil
If your soil test shows a deficiency, you may need to add extra nitrogen for plants. Correct levels of nitrogen are crucial for healthy plants and successful gardening.
By Teo Spengler
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Lilac Pruning Guide: How To Prune A Lilac Bush
Lilac pruning is rewarding because pruning lilac bushes means their fragrant flowers will thrive and flourish the next year. Learn how to prune lilacs to either maintain them or to tame them.
By Nikki Tilley
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Peace Lily With Brown Tips: Common Causes & How To Fix Them
A common complaint about peace lily tips turning brown is an easy fix if you know what’s causing it. Make it happy by adjusting your care.
By Teo Spengler
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Bigleaf Maple Habitat And Growing Conditions
Do you have lots of space to fill? Try growing this king of the maple trees.
By Teo Spengler
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Why Is My Lemon Tree Losing Leaves?
If your prized lemon tree is losing leaves it could be suffering from issues like disease, pests, nutrition or environmental problems.
By Teo Spengler
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How To Propagate Jade Plant Cuttings
There's no big mystery about how to propagate a jade plant. Whether rooting stem or leaf cuttings, it’s easy and rewarding.
By Teo Spengler
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How To Care For An Areca Palm Tree
Areca palm is the most widely used palm for bright interiors. Read this article to find out more about growing an areca palm in the home so you can enjoy its beautiful feathery fronds.
By Jackie Carroll
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Common Problems With Artificial Grass & How To Avoid Them
If you’ve added fake grass as a way to save time, be warned: you’ll run into problems with artificial grass if you haven’t made the right preparations. Here’s how to dodge lawn grief
By Teo Spengler
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Trees That Grow In Water – Best Trees For Wet Soil
Certain trees growing in water or wet areas of your yard can help improve drainage, but be sure they’re the right ones.
By Teo Spengler
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Which Plants You Shouldn’t Prune In Winter
Understanding which plants you shouldn’t prune in winter will safeguard key evergreens and spring-flowering ornamentals. We explain which plants to leave alone
By Teo Spengler
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When Orchid Tree Flowers Don’t Appear: How To Encourage Bauhinia Blooms
If you don’t see orchid tree flowers straight away, don’t panic. We show you how to get savvy with common orchid tree problems – and how to bring on the bauhinia blooms
By Teo Spengler
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Crystal Brain Fungus: All You Need To Know About Myxarium Nucleatum
At first glimpse, the crystal brain fungus can cause alarm and bewilderment, but fear not. We reveal why you can relax if you spot this squishy, gloopy garden guest
By Teo Spengler