Cactus Warehouse · Fallbrook, California
Your Plant
Just Arrived
Everything you actually need to keep it alive, on one page. About five minutes to read.
When you are not sure what to do, do nothing. More new plants are lost to overreaction, extra water, and constant moving than to a week of being left alone.
Start here
What came out of the box?
These two need opposite things in the first month. Pick the one you have.
Rooted plant · your first two weeks
Air first. Water later.
It has roots, so it is ready to grow. It just needs to be planted and then left alone.
- Unbox it todayGet it out of the box and into open air and bright shade. A shaded porch, an open garage, or a bright room all work. It may look tired, pale, or slightly shriveled. That is shipping, not damage.
- Check the rootsA little dryness is normal. If anything is mushy or black, trim it back with clean scissors until you hit firm, dry tissue. Minor trimming after transit is routine.
- Let it breathe, and do not water itNo water and no direct afternoon sun yet. Bare roots need to settle before their first drink.1 to 3 days
- Plant it in dry, gritty mixSame depth it grew before, and you can usually see the old soil line on the stem. Firm the dry mix around the roots so it stands on its own. Still no water.
- Then the first waterWait until the plant starts to firm back up and the soil is bone dry, then soak it thoroughly. From there it is soak and dry forever.7 to 14 days after planting
Watering a just planted bare root plant to help it settle in. Damp soil around roots that have not re-established is exactly how rot starts. The plant has months of water stored in its body. It is not in a hurry.
Our plants grow in full Fallbrook sun, but a few days sealed in a dark box partially resets a cactus's sun protection, like losing your tan. Straight into blazing afternoon sun it can scald, and sunburn scars are permanent. Give it morning sun or bright shade for three to five days, then step it up.
Cutting · seal, plant, root, water
A cutting is not a plant yet.
It is a plant kit. It has no roots, so it cannot drink at all. The order of these four steps is the whole game.
- Check the cut endA proper callus is hard, completely dry, and slightly sunken, like the skin on a healed scrape. If yours already looks like that, you are ahead of schedule and can skip to step three.
- Let it callusSet it somewhere dry, shaded, and breezy with nothing touching the cut end. A covered porch is perfect. No soil, no water, at any point in this stage. Thin cuttings in hot weather seal in about two weeks, thick columns in cool weather can take six.10 to 45 days
- Plant it shallow in dry, gritty mixBury only the callused end, an inch or two, just deep enough to hold it upright. You are making soil contact, not planting a fence post. Still no water.
- Wait for rootsKeep it in bright shade or gentle morning sun. The soil stays dry the whole time. Dry soil is the signal that tells a cutting to push roots out looking for water.2 to 8 weeks
- Then the first waterOnce it passes the tug test or pushes new growth, water it lightly, and from then on it is soak and dry like everything else on this page.
The tug test. Give it a gentle upward tug. If it slides, no roots yet, put it back and wait. If it resists and holds against the pull, roots are forming. That grip is the whole test.
New growth. Fresh green growth at the tip means it found water and nutrients, and there is only one place it could be getting them. New growth is a certificate of rooting. You never need to dig it up to check.
Do not stand a cutting in a glass of water, do not mist it to help, and do not plant an unsealed cutting in damp soil. All three are rot with extra steps. Desert plants root into drought, not into moisture.
We filmed these exact steps at the nursery: How to Propagate Cactus From Cuttings.
The one that matters most
Watering: soak and dry
Never on a schedule. The soil decides, not Sunday.
Water only when the soil has gone completely dry, then soak it thoroughly until water runs out the drainage hole, then leave it alone until it dries out again. Not damp. Not mostly dry. Bone dry.
How fast a pot dries depends on the season, the heat, the light, the pot, and the soil. The same cactus that dries out in ten days on a sunny July windowsill can stay damp for six weeks in December. Water on a schedule and half the year you are watering a pot that is still wet.
Three ways to know it is really dry
- The finger test. Push a finger an inch or two in. Any moisture or coolness, wait. Dry and dusty, it is time.
- Lift the pot. Wet soil is heavy, dry soil is light. You will learn your plant's empty weight within a month, and this becomes the fastest check there is.
- The skewer test. Push a wooden skewer to the bottom of the pot, like testing a cake. Clean and dry, water it. Damp soil clinging, wait.
Soft means too much water
- Mushy or squishy spots, especially near the base
- Yellowing, or a translucent waterlogged look
- Soil still damp days after watering
- Black or brown mush at the soil line
Wrinkled means too little
- Puckered, slightly deflated skin
- Still firm overall, color still good
- Growth paused
- Plumps back up a day or two after a deep soak
Overwatering kills. Underwatering is recoverable. It is not close. A thirsty cactus bounces back within a day of a good soak. An overwatered one rots from the roots up, and by the time the surface shows it, the damage below is usually done. If you ever have to guess, err dry.
It is not the deep drink that rots a cactus, it is soil that never dries afterward. A full soak into fast draining mix is just a desert downpour. Drench it without guilt, then let the drought do the protecting. And skip the misting bottle entirely. Desert cacti do not want humidity, and a wet crown invites rot.
Set it up right once
The pot and the soil
Get these two right and the plant becomes very hard to kill.
- A pot 1 to 2 inches wider than the plant. Never more. Oversizing is the quiet killer, because all that extra soil holds water the roots cannot reach and stays wet for weeks.
- A drainage hole, no exceptions. No hole means every watering pools invisibly at the bottom. If you love a pot with no hole, keep the plant in a plastic nursery pot and drop that inside.
- 1 part potting soil to 1 part pumice or perlite. Chunky, not fluffy. Water should run straight through it. Plain potting soil on its own is the fastest way to rot a cactus from the roots up.
- Terracotta makes everything more forgiving. Unglazed clay breathes and wicks moisture out through its walls. Plastic and glazed ceramic work too, just lean grittier and wait longer between waterings.
Grab a damp handful of your finished mix and squeeze. If it clumps into a ball and holds, it is holding too much water. Add grit until the ball crumbles apart when you open your hand. Humid climate, or you know you water too often? Push it to two parts grit for one part soil. Nobody has ever rotted a cactus with soil that drained too well.
Indoors, this is most of the job
Light
A cactus in a dim corner falls apart no matter how perfectly you water it.
Aim for six or more hours of direct sun a day. Direct means the sun actually lands on the plant, not just a bright room. Indoors that means the brightest south or west window you have, with the plant within a foot or two of the glass.
Distance matters more than people expect. Light falls off fast as you move into a room, and a shelf six feet from a south window can get a fraction of the light available at the glass. Get it close. Then give the pot a quarter turn every week or two so it grows straight instead of leaning.
A cactus starved for light stretches. The growing tip narrows and goes pale, new spines come in thin and far apart, and a round barrel starts to point. Here is the catch: it does not un-stretch. Move it into stronger light and new growth comes in normal and fat again, but the stretched section is permanent. Catch it early.
An inexpensive full spectrum LED grow light on a timer, 10 to 14 hours a day, 6 to 12 inches above the plant, honestly fills the gap. A grow light is not cheating, it is just more light.
The question we get most
Is my plant okay?
Almost every time, the answer is yes.
Start with the thumb test. Press gently. Firm is nearly always fine. Soft is nearly always serious.
The other thing to watch is direction. Shipping stress improves over time. Rot progresses. If your plant looks rough on day three but noticeably better by day ten, you are in good shape. If it looks worse on day ten than it did on day three, work the table below.
| What you see | What it means | What to do |
|---|---|---|
| Wrinkled, deflated, still firm | Thirst. The easy one. Normal |
One deep soak. It plumps back up within a day or two. |
| Firm brown, bark-like, at the base | Corking. Normal aging. Normal |
Nothing. This is your cactus growing up, not dying. |
| Bleached tan patch on the sun side | Sunburn from a sudden light upgrade. Cosmetic |
Step the light back down. The scar is permanent but the plant is fine. |
| Pale yellow-green, stretching | Not enough light. A slow fade. Fix soon |
Move it brighter over a week or two, a little more sun each day. |
| Cottony white fluff between the ribs | Mealybugs. The most common cactus pest. Fix soon |
Dab each spot with a cotton swab dipped in rubbing alcohol. Recheck weekly until clean. |
| Soft yellow, spreading from the base up | Overwatering. The roots are drowning. Act today |
Stop watering, check drainage, let it dry out fully. If it is mushy, treat it as rot. |
| Soft, dark, sunken, maybe smelly | Rot. The emergency. Act today |
Surgery, today. Steps below. |
The rot rescue
- Get it out of the wet soil nowBare root the plant and let the roots breathe.
- Cut away everything rotten, and keep the clean topRot nearly always climbs from the base, so the bottom gets discarded and the healthy upper section is what you save. With a clean, sharp knife, slice into solid pale green flesh above the rot. Any brown streak or ring left behind keeps spreading, so keep cutting higher until the cut face is perfectly clean. Wipe the blade between cuts.
- Callus the survivorSet the healthy top somewhere dry, shaded, and airy until the cut face hardens.1 to 2 weeks
- Re-root it like a cuttingDry gritty mix, no water until it roots. You already know this drill. It is the cutting track at the top of this page.
As long as one firm green section remains, the plant is usually savable. We rescue plants this way at the nursery all the time. If you are still not sure what you are looking at, take two photos, one of the whole plant and one close up of the worried spot, and reply to your order email. It lands with a real person here. We diagnose plants for a living.
Keep this part
The care card
Screenshot this. It is the whole page at a glance.
Water
- Only when the soil is bone dry, never on a schedule
- Soak until it runs out the drainage hole, then walk away
- Soft means too much. Wrinkled means too little
- When in doubt, wait
Light
- Six or more hours of direct sun
- South or west window, within a foot or two of the glass
- Quarter turn every week or two
- Weak window? LED grow light, 10 to 14 hours on a timer
Pot and soil
- Pot 1 to 2 inches wider than the plant, never more
- Drainage hole, no exceptions
- 1 part potting soil to 1 part pumice or perlite
- Terracotta makes everything more forgiving
New arrivals
- Bright shade first, no water on day one
- Rooted: plant within days, first water in 7 to 14
- Cutting: callus, plant dry, root, then water
- Any move into stronger sun happens gradually
Firm is fine. Soft is serious.
From the farm
Watch these next
We film everything at the nursery in Fallbrook. These three are the most worth your time after this page.
More at Cactus Warehouse on YouTube
If you want the long version
The Field Guide
This page is the essentials. The Field Guide is the deep dive: 35 pages on cuttings, soil recipes for your climate, grow lights, moving plants outdoors and back, reading field grown marks, pests, and a full year of seasonal care.
$7.95 · instant PDF download
Get the Field Guide