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Mark Tavis

Mark Tavis is the pen name of Plant Blueprint's founder and editor, a plant enthusiast and researcher (not a professional horticulturist). Every guide is built from university extension services, botanical gardens and the ASPCA, with sources linked so readers can check them.

How to Get Rid of Spider Mites on Houseplants (6-Step Plan)

October 22, 2026 by Mark Tavis
Close-up of spider mite webbing and stippling on a houseplant leaf

The Infirmary | How to Get Rid of Spider Mites Fine speckling on the leaves, a dull or bronzed look, and then delicate webbing between … Read more

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Plants Safe for Dogs: 20 ASPCA-Listed Non-Toxic Houseplants

October 26, 2026October 21, 2026 by Mark Tavis
Golden retriever resting next to dog-safe houseplants: spider plant, parlor palm and calathea

The Infirmary | Plants Safe for Dogs Dogs chew things, and houseplants are at nose height. Many of the most popular indoor plants, including pothos, … Read more

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How to Get Rid of Fungus Gnats: What Actually Works

October 26, 2026October 21, 2026 by Mark Tavis
Pothos in a terracotta pot with a yellow sticky trap and a sand top layer to control fungus gnats

The Infirmary | How to Get Rid of Fungus Gnats Those tiny black flies circling your houseplants and walking across the soil are almost always … Read more

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Snake Plant Propagation: 3 Easy Ways to Get New Plants

October 26, 2026October 21, 2026 by Mark Tavis
Snake plant beside a potted pup and leaf cuttings rooting in perlite on a wooden table

The Lab | Snake Plant Propagation Snake plants are classic pass-along plants: Penn State Extension calls them easy to propagate, and one healthy pot can … Read more

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African Violet Care: How to Keep It Blooming Indoors

October 26, 2026October 21, 2026 by Mark Tavis
African violet with purple flowers and fuzzy green leaves in a small white pot on a bright windowsill

The Lab | African Violet Care African violets are among the few houseplants that can flower almost all year on a windowsill, and they stay … Read more

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Christmas Cactus Care: Light, Water, Blooms and Propagation

October 24, 2026October 21, 2026 by Mark Tavis
Christmas cactus in full bloom with hot pink flowers in a terracotta pot on a winter windowsill

The Lab | Christmas Cactus Care A Christmas cactus can outlive the person who bought it: University of Minnesota Extension and Penn State Extension both … Read more

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Kalanchoe Care: Light, Water and How to Make It Rebloom

October 25, 2026October 21, 2026 by Mark Tavis
Flowering kalanchoe with clusters of red-orange flowers in a white pot on a sunny windowsill

The Lab | Kalanchoe Care Florist kalanchoe (Kalanchoe blossfeldiana), also sold as Flaming Katy or Christmas kalanchoe, is a compact succulent covered in clusters of … Read more

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Winter Houseplant Care: How to Keep Plants Alive Till Spring

October 27, 2026October 21, 2026 by Mark Tavis
Houseplants on a bright windowsill in winter with snow outside and a small humidifier nearby

The Lab | Winter Houseplant Care Winter is the hardest season for houseplants, even though they never leave the house. The days are short, the … Read more

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Pothos Propagation: How to Root Cuttings in Water or Soil

October 26, 2026October 21, 2026 by Mark Tavis
Pothos cuttings rooting in glass jars of water on a sunny windowsill

The Lab | Pothos Propagation Pothos is one of the easiest houseplants to propagate: Clemson HGIC says stem cuttings root easily in soil or water, … Read more

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