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The Identium blog

Every article, newest first. 56 published so far.

Reading Plant Labels
Plant identification

How to Read a Plant Label (and Why Most of Them Tell You Almost Nothing)

Every label says the same four things. None of them tell you how often to water it.

September 5, 2026·6 min read
Air Plant Care
Plant care

Air Plant Care: They Do Not Live on Air, and That Is Why Yours Died

Sold as the plant that needs nothing. They need a weekly bath and good airflow, and the pretty glass globe is the problem.

September 5, 2026·6 min read
String of Pearls
Plant care

String of Pearls: Why Yours Is Shrivelling, Balding or Bursting

Beautiful, widely killed, and almost always by the same two mistakes. Shallow roots and a deep pot do not mix.

September 5, 2026·6 min read
Rubber Plant Care
Plant care

Rubber Plant Care: Big Leaves, Few Demands, One Common Mistake

The forgiving ficus. Nearly everything that goes wrong with one is the same thing going wrong.

September 5, 2026·6 min read
Identify a Palm
Plant identification

How to Identify a Palm: Fan or Feather, and the One That Is Not a Palm

Fan or feather is the first question. The second is whether it is a palm at all, and that one matters if you own a dog.

September 5, 2026·6 min read
Root Rot
Plant problems

Root Rot: How to Tell If It Is Too Late, and How to Save It If Not

Firm and pale means alive. Brown and slimy means gone. Everything else follows from that one distinction.

September 5, 2026·7 min read
Hoya Care
Plant care

Hoya Care: Tough, Pet Safe, and Stubborn About Flowering

Do not cut the bare stalk the flowers came from. That is where next year's flowers come from too.

September 5, 2026·6 min read
Thrips
Plant problems

Thrips: The Pest That Hides in the Soil and Comes Back

Silver streaks on the leaf and tiny black dots beside them. Half the population is in the soil, which is why leaf sprays fail.

September 5, 2026·6 min read
ZZ & Philodendron
Plant care

ZZ Plant and Philodendron Care: Two Plants You Can Genuinely Neglect

Two of the three plants worth recommending to somebody who has killed everything else.

September 5, 2026·7 min read
Leaf Spots
Plant problems

Spots on Leaves: Fungal, Bacterial, or Not a Disease at All

Halo, texture and edge. Three things separate an infection from a splash of cold water.

September 5, 2026·7 min read
Calathea Care
Plant care

Calathea and Prayer Plant Care: Why Yours Has Crispy Edges

The most beautiful foliage in the trade, attached to the fussiest plant on the shelf. Two changes fix most of it.

September 5, 2026·7 min read
Identify a Fern
Plant identification

How to Identify a Fern: Fronds, Spores and the Ones That Are Not Ferns

Turn the frond over. The pattern of the spore dots on the back separates families faster than anything you can see from the front.

September 5, 2026·7 min read
Spider Plant Care
Plant care

Spider Plant Care: Brown Tips, Free Babies, and Why It Is Still the Best Starter Plant

One of the very few houseplants that is genuinely safe around cats, and it hands you free plants on runners.

September 5, 2026·6 min read
Winter Plant Deaths
Plant problems

Why Everything Is Dying in January (and What to Change Now)

Nothing changed about how you look after them. That is exactly the problem.

September 5, 2026·6 min read
Scale Insects
Plant problems

Scale Insects: The Brown Bumps That Are Not Part of the Plant

If a brown bump scrapes off with a fingernail and leaves a wet mark, it was alive.

September 5, 2026·6 min read
Forcing Bulbs
Plant care

Forcing Bulbs Indoors: Flowers in January if You Start Now

The one gardening job with a fixed deadline. Start in October, get flowers in the darkest week of the year.

September 5, 2026·7 min read
Identify Wildflowers
Plant identification

How to Identify Wildflowers: A Field Method That Works Without a Key

Botanical keys are precise and slow. This is the shortcut field botanists actually use before reaching for one.

September 5, 2026·7 min read
Mealybugs
Plant problems

Mealybugs: The White Fluff That Keeps Coming Back

You wipe off the white fluff and it returns in ten days. That is because you only found the ones on top.

September 5, 2026·6 min read
Fiddle Leaf Fig
Plant care

Fiddle Leaf Fig Care: Why It Keeps Dropping Leaves

The most photographed houseplant and one of the least forgiving. Nearly every problem comes from moving it or changing its routine.

September 5, 2026·7 min read
Aloe Vera Care
Plant care

Aloe Vera Care: Why Yours Is Flopping, and the Pet Warning Nobody Gives

Sold as a medicine cabinet on a windowsill. Also toxic to cats and dogs, which almost nobody mentions.

September 5, 2026·6 min read
Pruning Houseplants
Plant care

How to Prune Houseplants: Where to Cut and Why It Makes Them Bushier

Cutting a plant makes it fuller, not smaller. Once you know why, the rest is obvious.

September 5, 2026·6 min read
Bathroom Plants
Plant care

The Best Bathroom Plants (and Why Most Bathrooms Are Harder Than They Look)

Everyone says bathrooms are perfect for plants because of the steam. The humidity is real. The light usually is not.

September 5, 2026·7 min read
Identify a Succulent
Plant identification

How to Identify a Succulent: Echeveria, Haworthia, Sedum and the Rest

That mixed tray of unnamed succulents contains plants with genuinely different needs, and at least one that is toxic if you break it.

September 5, 2026·7 min read
Brown Leaf Tips
Plant problems

Brown Tips on Leaves: Five Causes and How to Tell Them Apart

Everyone blames humidity. It is the cause maybe a third of the time.

September 5, 2026·6 min read
Pothos Care
Plant care

Pothos Care: The Plant That Tells You What It Wants

The best first houseplant there is, mostly because it warns you before anything goes wrong.

September 5, 2026·7 min read
Identify a Houseplant
Plant identification

How to Identify a Houseplant You Inherited, Bought Unlabelled or Forgot

Nursery labels say things like assorted tropical. Here is how to work out what you actually own, and why it changes how you water it.

September 5, 2026·8 min read
Curling Leaves
Plant problems

Why Are My Plant's Leaves Curling? Read the Direction First

Up, down or twisted. The direction narrows it to two or three causes before you check anything else.

September 5, 2026·7 min read
Bringing Plants In
Plant care

Bringing Plants Indoors for Winter: Do This Before the First Frost

The plant that loved your patio all summer is about to lose half its leaves. Some of that is unavoidable. Most of it is not.

September 5, 2026·8 min read
Holiday Plants & Pets
Plant problems

Poinsettia, Holly, Mistletoe and Amaryllis: Which Holiday Plants Actually Hurt Pets

The plant everyone warns you about is the mildest on the table. The dangerous ones arrive in the same bouquet without a word.

September 5, 2026·7 min read
Christmas Cactus
Plant care

Christmas Cactus: Why It Won't Bloom, and the Trick That Works

It is not a cactus, it does not want a sunny windowsill, and the thing you bought in December is probably not the one on the label.

September 5, 2026·7 min read
Feeding Houseplants
Plant care

Houseplant Fertilizer: What the Numbers Mean and How Often to Actually Feed

Fertiliser will not fix a plant that is unhappy. It will finish off a plant that is already struggling.

September 5, 2026·6 min read
Houseplant Soil
Plant care

Houseplant Soil: Why Bagged Compost Kills Plants and What to Mix Instead

Most houseplants are sold in a mix that suits the nursery, not your living room. Changing it is the cheapest upgrade in the hobby.

September 5, 2026·7 min read
What Free Means
Plant identification

Are Plant Identifier Apps Free? What Free Actually Means, and How to Check

Free to download and free to use are different things, and the App Store tells you which one you are getting if you know where to look.

September 5, 2026·7 min read
Orchid Reblooming
Plant care

Why Won't My Orchid Rebloom? (It Is Almost Always One Thing)

Supermarket orchids are treated as disposable. They are not. Most just need ten degrees of night-time cold.

September 5, 2026·7 min read
Identify a Tree
Plant identification

How to Identify a Tree: Leaves, Bark, Shape and Where It Grows

Start with how the leaves attach to the twig. That single question rules out most of the trees in North America before you look at anything else.

September 5, 2026·8 min read
Snake Plant Care
Plant care

Snake Plant Care: The Only Houseplant That Dies From Kindness

Sold as unkillable, and mostly true. The exception is watering it like a normal plant.

September 5, 2026·6 min read
Lawn & Pot Mushrooms
Plant identification

Mushrooms in Your Lawn or Plant Pot: What They Mean and Whether to Worry

A mushroom in the pot is usually good news for the plant and a genuine question mark for a toddler. Those are two different problems.

September 5, 2026·7 min read
Spider Mites
Plant problems

Spider Mites: How to Spot Them Early and Actually Get Rid of Them

By the time you see webbing, the plant has already lost a lot. Here is how to catch them a fortnight earlier.

September 5, 2026·7 min read
Propagate in Water
Plant care

How to Propagate Pothos and Philodendron in Water (Free Plants, No Skill Needed)

One plant becomes six for the price of a jam jar. The only thing you have to get right is where you cut.

September 5, 2026·6 min read
Winter Plant Care
Plant care

Winter Houseplant Care: The 6 Things to Change in October

More houseplants die in January than in July. The killer is a watering routine that was perfectly correct in August.

September 5, 2026·7 min read
Common Lawn Weeds
Plant identification

12 Common Lawn Weeds, How to Tell Them Apart, and What Each One Means

Weeds are not random. Each one is fussy about conditions, so the ones you have are a fairly precise report on your lawn.

September 5, 2026·8 min read
Monstera Care
Plant care

Monstera Care: Why Yours Has No Holes, and 8 Other Fixes

Almost every monstera problem traces back to one of three things. The famous holes are the fourth, and they are not a problem at all.

September 5, 2026·8 min read
When to Repot
Plant care

When to Repot a Houseplant (and When to Leave It Alone)

Repotting is the fix people reach for when a plant looks sad. Half the time it is the thing that finishes it off.

September 5, 2026·7 min read
Kill Fungus Gnats
Plant problems

How to Get Rid of Fungus Gnats for Good (Not Just the Ones You See)

Sticky traps catch the ones flying. The next batch is already in the pot, and that is why they keep coming back.

September 5, 2026·6 min read
Why Succulents Die
Plant problems

Why Is My Succulent Dying? The 7 Ways They Usually Go

Succulents are sold as the plant you cannot kill, which is why so many people manage it. Here is what each symptom is telling you.

September 5, 2026·7 min read
Hardiness Zones
Plant care

USDA Hardiness Zones Explained (and Why Yours Probably Changed)

About half the United States shifted half a zone warmer in 2023. If you are still gardening off the old map, some of your advice is out of date.

September 5, 2026·8 min read
Plants for Dark Rooms
Plant care

18 Plants That Actually Survive a Dark Apartment

Every list says snake plant and pothos. Here is the longer list, plus which rooms are genuinely too dark for anything.

September 5, 2026·8 min read
Save an Overwatered Plant
Plant problems

How to Save an Overwatered Plant (Step by Step, Starting Today)

The cruel part is that an overwatered plant wilts, so you water it again. Here is how to break the loop.

September 5, 2026·7 min read
Do Plants Clean Air?
Plant care

Do Houseplants Actually Clean the Air? What the Research Says

One 1989 experiment created a decade of marketing copy. A 2019 review did the arithmetic that nobody had bothered to do.

September 5, 2026·7 min read
Toxic to Cats & Dogs
Plant problems

Which Houseplants Are Toxic to Cats and Dogs? A Room by Room Check

Most toxic houseplants cause a sore mouth and a bad afternoon. A short list can kill a cat. Knowing which is which is the whole job.

September 5, 2026·9 min read
Poison Ivy, Oak & Sumac
Plant identification

How to Identify Poison Ivy, Oak and Sumac Before You Touch It

Leaves of three gets you about halfway. The plants that put people in urgent care are the ones that break the rhyme.

September 5, 2026·8 min read
Yellow Leaves, Explained
Plant problems

Why Are My Plant's Leaves Turning Yellow? 9 Causes and Fixes

Yellow leaves are a symptom, not a diagnosis. Which leaves went first tells you almost everything about the cause.

September 5, 2026·6 min read
Identify From a Photo
Plant identification

How to Identify a Plant From a Photo: What Actually Works

Identification accuracy is mostly decided before you tap the shutter. Here is what the model is actually looking at.

September 5, 2026·5 min read
How Often to Water
Plant care

How Often Should You Water Houseplants? A Simple Rule That Works

There is no correct number of days. There is a correct soil condition, and it arrives at a different rate every month of the year.

September 5, 2026·5 min read
Easy Indoor Plants
Plant care

14 Easiest Indoor Plants for Beginners That Are Hard to Kill

Forgiving does not mean indestructible. These fourteen tolerate the specific mistakes beginners actually make.

September 5, 2026·6 min read
Houseplant Pests
Plant problems

12 Common Houseplant Pests and How to Get Rid of Them

Nearly every indoor infestation is one of a dozen usual suspects, and each leaves a signature you can read from the leaf.

September 5, 2026·6 min read