
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 pastime, 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, following a long career as an attorney and legal writer. 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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Want to Grow More Trees and Shrubs for Free? Collect These 7 Seeds Now to Plant in Spring
Grow more of your favorite trees and shrubs for free by collecting seeds now to sow next spring. Here are the 7 best species to collect.
By Teo Spengler
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8 Must-Have Japanese Maple Varieties for Gorgeous Foliage This Fall
If you want stunning fall foliage and year-round interest, these 8 types of Japanese maples are sure to make your garden shine.
By Teo Spengler
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5 Best Ways To Get Rid Of Leaves Without A Rake – Quickest & Easiest Leaf Clean Up Methods To Try This Fall
Don't hurt your back raking leaves this year. Try a tree expert's favorite leaf clean up methods and hang up the rake for good.
By Teo Spengler
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I’m a Tree Expert – Here Are 7 Landscaping Rules I Always Follow Around Trees (and the Mistakes I Avoid)
Work with your trees, not against them. Follow these 7 simple dos and don'ts to craft a landscape that keeps you both happy.
By Teo Spengler
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Add Some Fall Sparkle to Dull Corners: 5 Shade-Loving Shrubs and Trees for Sizzling Autumnal Foliage
Shade-dwelling trees and shrubs may sound unassuming, but they are more than capable of putting on a show in autumn. You’ll love these vibrant shade shrubs with fall interest
By Teo Spengler
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Neighbor’s Weeds Taking Over Your Garden? A Lawyer Shares Expert Tips on How to Talk to Neighbors & What You Can (and Can't) Do
We all want to get along with our neighbors, but what if their weeds are creeping into your pristine beds? Here's how to handle a potentially prickly situation.
By Teo Spengler
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7 Deer-Resistant Spring Bulbs That Keep Your Garden Safe from Grazing
These bulbs stand the best chance against hungry winter deer. Plant them this fall for a beautiful spring.
By Teo Spengler
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Should You Leave the Leaves This Fall? Why Leaf Litter Could Actually Help Your Yard (And When to Bag It Up)
Before you grab your rake for the big fall cleanup, read this: you might find it’s better for your garden to leave the leaves. Here’s how to get leaf litter working for you
By Teo Spengler
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These 4 Fall Flowering Trees Add Sublime Color and Showy Splendor to Any Yard
Autumn color is generally associated with vivid leaf tones – but you won’t regret saving some space for late-year bloomers. Here are 4 gorgeous fall flowering trees
By Teo Spengler
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Using a Leaf Blower Too Early Doesn't Just Bother Neighbors, It May Be Against the Law – Here's How to Avoid Trouble
Be a kind and courteous this fall. Don't blow leaves outside of these hours to keep neighbors happy and keep yourself out of trouble.
By Teo Spengler
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Signs a Tree or Shrub Isn't Happy – And How to Move It to a Better Spot
Does your tree or shrub look unhappy? Maybe all it needs is a change of scene.
By Teo Spengler
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NPK Demystified – Here's What the Numbers on Your Fertilizer Really Mean
NPK refers to the three macronutrients all plants need: nitrogen, phosphorus, and potassium. Learn all about NPK in fertilizer here.
By Tyler Schuster
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Don’t Miss Your Chance! This Is the Last Possible Time to Fertilize Your Lawn in Fall Before It’s Too Late
Don't let the best time to fertilize your lawn get away from you.
By Teo Spengler
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7 Evergreen Cuttings to Take in Fall for a Vibrant and Varied Four-Season Garden
Want to add extra dimensions to existing evergreens or create a new evergreen screen or privacy border? Take these evergreen cuttings in fall for a free boost to year-round shrubs
By Teo Spengler
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Fall Fruit Cane, Berry and Currant Planting – Plant These 5 in Autumn for the Ultimate Fruits
Some of the tastiest berries and currants are started off in autumn – so if you’re keen on fruit canes, berries and currant planting, here are 5 of the best fruits to plant in the fall
By Teo Spengler
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5 Fruit Trees I Always Prune Back After Harvesting Their Fruits – For Healthy Home Orchards and Future Crops
Fruit pruning isn’t always tied to dormancy. These 5 fruit trees can be pruned after their fruits are harvested. So once you’ve enjoyed your feast, grab your pruners!
By Teo Spengler
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7 Spring-Flowering Bulbs I Plant Every Fall for a Sensational Display That Lasts for Months
Trained horticulturist and master gardener Teo Spengler relies on these spring garden stalwarts to shine in beds, borders, and container displays.
By Teo Spengler
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Divide These 8 Perennials in September for More Plants in the Spring
Plants getting tired? September is the perfect time to divide and transplant perennials to give them a boost (and give you more plants).
By Teo Spengler

