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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.

Fiddle Leaf Fig Brown Spots: 6 Causes and How to Fix Each

October 17, 2026September 26, 2026 by Mark Tavis
Fiddle leaf fig brown spots shown close-up on a leaf, demonstrating the visual differences between root rot, bacterial leaf spot, and edema.

The Infirmary | Fiddle Leaf Fig Brown Spots Fiddle leaf fig brown spots usually come from one of a handful of causes: root rot from … Read more

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Peace Lily Care: Watering, Light and How to Get Blooms

October 25, 2026September 26, 2026 by Mark Tavis
peace lily care: a healthy blooming Spathiphyllum in a white ceramic self-watering planter on a sunny indoor table

The Urban Lab | Care Protocol Peace lily care comes down to three things: soil kept consistently moist but never sitting in water, bright indirect … Read more

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Cast Iron Plant Care: A Pet-Safe Plant for Dark Corners

October 26, 2026September 25, 2026 by Mark Tavis
Cast iron plant care guide showing Aspidistra elatior with glossy dark green arching leaves in a low-light room

The Lab | Cast Iron Plant Care The cast iron plant (Aspidistra elatior) earned its name by surviving the dim, smoky parlors of the 19th … Read more

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Self-Watering Pot Problems: 5 Failures and How to Fix Each

October 17, 2026September 24, 2026 by Mark Tavis
Self-watering pot problems showing a cross-section of a reservoir planter with root rot, gnats, and salt crust

The Infirmary | Self-Watering Pot Problems Self-watering pots promise less work, but they can also rot roots, breed fungus gnats, grow algae and collect salts. … Read more

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How to Get Rid of Thrips on Houseplants: A 4-Week Plan

October 22, 2026September 24, 2026 by Mark Tavis
How to get rid of thrips on houseplants showing silvery damaged leaf with black frass specks" image_description: "Close-up of a houseplant leaf showing classic thrips damage: silvery stippled patches with tiny black excrement specks, next to a blue sticky trap and spray bottle

The Infirmary | Thrips on Houseplants Silvery patches on a leaf, dark specks underneath and new leaves that open scarred are the usual first signs … Read more

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Snake Plant Spiritual Meaning: Is It Good or Bad Luck?

October 19, 2026September 11, 2026 by Mark Tavis
Snake plant spiritual meaning: upright sword-shaped Sansevieria leaves flanking a bright home entryway

Symbolism | Snake Plant Spiritual Meaning Look up the snake plant spiritual meaning and you’ll find two camps. One calls it a protective plant whose … Read more

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Peace Lily Meaning: What It Symbolizes and When to Give One

October 19, 2026September 11, 2026 by Mark Tavis
Peace lily meaning and symbolism: white Spathiphyllum bloom wrapped in a sympathy gift ribbon on a dark wooden table

Symbolism | Peace Lily Meaning People look up the peace lily meaning when they’re choosing a gift for a funeral, an apology or a new … Read more

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Overwatered vs Underwatered Plant: How to Tell and Fix It

October 22, 2026September 9, 2026 by Mark Tavis
"Overwatered vs underwatered plant leaves side by side, with a finger testing soil moisture in a houseplant pot

The Infirmary | Overwatered vs Underwatered A drooping plant with yellowing leaves could be too wet or too dry, and the leaves alone often can’t … Read more

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Homemade Plant Food: 5 Kitchen Scraps and What They Do

October 22, 2026September 8, 2026 by Mark Tavis
Homemade plant food from kitchen scraps: jar of eggshell calcium, dried coffee grounds, and rice water beside a potted pothos

The Pantry | Homemade Plant Food Kitchen scraps can feed plants, but only some of them, and usually only after they’ve been processed. This guide … Read more

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