Welcome To Soil & Plant Knowledge

Overwatering houseplant soil that causes root rot

Overwatering vs Root Rot: How To Tell The Diffe...

Aaron Deacon

Overwatering and underwatering look almost identical, which kills more houseplants than any pest. Here's how to tell them apart, and why root rot is really an oxygen problem, not a...

Overwatering vs Root Rot: How To Tell The Diffe...

Aaron Deacon

Overwatering and underwatering look almost identical, which kills more houseplants than any pest. Here's how to tell them apart, and why root rot is really an oxygen problem, not a...

Repotting a houseplant into a slightly larger pot with fresh soil, keeping the root ball intact

How To Repot A Houseplant Without Transplant Shock

Aaron Deacon

From your plant's point of view, repotting is a giant ripping the roof off your house. Here are the three simple moves that cut transplant shock from weeks to about...

How To Repot A Houseplant Without Transplant Shock

Aaron Deacon

From your plant's point of view, repotting is a giant ripping the roof off your house. Here are the three simple moves that cut transplant shock from weeks to about...

Full-spectrum white LED grow light over a shelf of healthy green houseplants indoors

How To Choose A Grow Light For Houseplants (Wit...

Aaron Deacon

Light is food for plants — and the #1 thing people get wrong. How to read the light you already have, when you actually need a grow light, and exactly...

How To Choose A Grow Light For Houseplants (Wit...

Aaron Deacon

Light is food for plants — and the #1 thing people get wrong. How to read the light you already have, when you actually need a grow light, and exactly...

Fine spider mite webbing spanning the leaves and stem of a houseplant, with pale stippling visible on the foliage

How To Get Rid Of Spider Mites On Houseplants (...

Aaron Deacon

Spider mites are the pest you notice last and regret most. They're arachnids, not insects — which changes everything about how you beat them. Here's how to spot them early...

How To Get Rid Of Spider Mites On Houseplants (...

Aaron Deacon

Spider mites are the pest you notice last and regret most. They're arachnids, not insects — which changes everything about how you beat them. Here's how to spot them early...

Adult fungus gnat on the damp soil surface of a houseplant pot, with a yellow sticky trap nearby

How To Get Rid Of Fungus Gnats On Houseplants (...

Aaron Deacon

Those little black flies drifting out of your pots are a symptom, not the problem. Fungus gnats breed in damp topsoil — here's how to starve them out without wrecking...

How To Get Rid Of Fungus Gnats On Houseplants (...

Aaron Deacon

Those little black flies drifting out of your pots are a symptom, not the problem. Fungus gnats breed in damp topsoil — here's how to starve them out without wrecking...

Houseplant leaf showing interveinal chlorosis, with yellowing between green veins indicating magnesium deficiency

Cal-Mag For Houseplants: Why Calcium And Magnes...

Aaron Deacon

My seedlings went pale and fertilizer did nothing. Then I added cal-mag and they went from three inches to two feet. Here's why these two minerals bottleneck everything.

Cal-Mag For Houseplants: Why Calcium And Magnes...

Aaron Deacon

My seedlings went pale and fertilizer did nothing. Then I added cal-mag and they went from three inches to two feet. Here's why these two minerals bottleneck everything.