Plant Care Saguaro


4.6 out of 5 (30 experiences)

Saguaro has a Survivor plant personality Survivor
Saguaro has a Fast grower plant personality Fast grower

Also known as

Giant Cactus


Carnegiea gigantea

How to care for Saguaro

💦 Water

How often to water your Saguaro

Water needs for Saguaro
0.5 cups
every 12

Saguaro needs 0.5 cups of water every 12 when it doesn’t get direct sunlight and is potted in a 5" pot.

Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Calculate water needs of Saguaro

Water 0.5 cups every

Does your plant get direct sunlight?

Select the pot size

☀️ Light

Finding light for Saguaro in your home

Light needs and placement for plant Saguaro: 1ft from a window
1ft or less from
a window

Saguaro love being close to bright, sunny windows 😎.

Place it less than 1ft from a south-facing window to maximize the potential for growth.

Saguaro does not tolerate low-light 🚫.

Select your region to see how the current weather in your area affects the placement of Saguaro in your home 🏡.

🪴 Nutrients

How to fertilize Saguaro

Nutrient, fertilizer, and repotting needs for Saguaro: repot after 2X growth

Most potting soils come with ample nutrients which plants use to produce new growth.

By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.

To replenish this plant's nutrients, repot your Saguaro after it doubles in size or once a year—whichever comes first.

💡 FAQs
⭐ Difficulty Level

Saguaro is generally easy to care for, though some plant parents report facing challenges with growing it. Check out the reviews down below to read more about their experiences!

Benefits of Growing Saguaro →

Common Saguaro Problems →

💦 Water Needs

Saguaro thrives in dry soil and should be watered sparingly. Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Saguaro Water Frequency →

Saguaro Root Rot →

☀️ Sunlight Needs

Saguaro requires abundant, bright and direct light. Place it less than one foot from a window to ensure it receives enough light to survive 💪. Select your region to see how the current weather in your area affects the placement in your home 🏡.

Saguaro Light Requirements →

Saguaro Direct Sunlight Needs & Tolerance →

🐶 🐈 👶 Toxicity

Saguaro is not known to cause harm to humans or pets. Regardless, if you, a family member, a cat, or dog has ingested any plant material, please consult a doctor or a veterinarian.

Saguaro Toxicity to Cats →

💨 Humidity

Saguaro prefers dry environments. Providing extra humidity or misting your plant allows water to linger on leaves, which can create the perfect environment for harmful types of fungi.

Saguaro Humidity Needs →

🪴 Soil

Saguaro is very sensitive to wet soil, so choose a potting soil that drains very well and doesn’t retain too much moisture. A good soil will have lots of perlite or vermiculite for drainage and some organic matter for nutrition. A few handfuls of perlite added to regular store-bought cactus soil will do the trick!

When and How to Successfully Repot Saguaro →

💩 Fertilizer

Saguaro grows very slowly and doesn’t require added fertilizer. Replacing your plant’s potting soil once a year should provide them with more than enough nutrition. Remember, plants get their energy from sunlight, not fertilizer!

How Much and When to Fertilize Saguaro →

🌎 Native Region

Saguaro is native to North America.

🌸 Flowers

Saguaro produces flowers in the wild, but does not flower when kept as houseplants.

⬆️ ⬇️ Growth Pattern

Saguaro grows vertically and new growth will emerge from the top of the plant.

How and When to Prune Saguaro →

🌦️ Growing Outdoors

USDA Hardiness Zone
Saguaro can be grown outdoors in USDA Hardiness Zones 8-11b. Find your local hardiness zone here.

Saguaro Temperature Tolerance →

🌱 Propagation

Saguaro can be propagated by the stem method. To propagate:

  • Make a cut just above the node. The node is the break in the stem where the leaf emerges.
  • To get the cutting to root, you can either:
    • Place the cutting in water until roots emerge and are ~2” long and then transplant into well-draining soil, or
    • Place the cutting directly into well-draining soil and water when dry.

How to Propagate Saguaro →

🧐 Troubleshooting

When troubleshooting a sad-looking houseplant, start by checking for signs of distress in its leaves, such as yellowing, browning, or drooping, which can indicate overwatering or nutrient deficiencies.

Inspect the soil moisture; too dry or too wet soil can cause problems.

Ensure the plant is getting the right amount of light, as too much or too little can stress it.

Finally, consider environmental factors like temperature and humidity, and adjust care routines accordingly to revive your plant.

😖 Common Issues

Overwatering is a likely cause of issues with Saguaro. These plants are very sensitive to wet soil so if you notice your plant becoming squishy or translucent, overwatering is the likely culprit.

Cut your plant just past where the rot ends and allow it to callus over for a few days before replanting it in fresh, dry soil. Download Greg to make sure your plant never gets overwatered again!

Care Summary for Saguaro



Greg recommends:


0.5 cups every 12 days


< 1ft from a window


Repot after 2x growth

Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.

What other plant parents say

Saguaro has a Survivor plant personality Survivor 23
Saguaro has a Fast grower plant personality Fast grower 8
Saguaro has a Easy to propagate plant personality Easy to propagate 3
Saguaro has a Blooms easily plant personality Blooms easily 1
Deborah avatar
leaf-1 7 Plants
xp 1,057 XP

This is a sturdy healthy looking cactus. The care is easy. I did use soil specifically for succulents.

@chw avatar
leaf-1 14 Plants
xp 1,081 XP
globe San Francisco, CA

The spines are very sharp.

Survivor Survivor
Ian avatar
leaf-1 8 Plants
xp 219 XP
globe Bozeman, MT

Must have consistent water habits

Survivor Survivor
Fast grower Fast grower
@mhodgdon avatar
leaf-1 3 Plants
xp 101 XP

easy to care for, needs little water, quite hardy

Survivor Survivor
Chloe avatar
leaf-1 5 Plants
xp 170 XP
globe Luton, England

Sometimes goes wonky. Not sure why. 🤦🏼‍♀️😂

Survivor Survivor
@McCall avatar
leaf-1 34 Plants
xp 1,981 XP
globe Salt Lake City, UT

I love this little guy. Low maintenance. Just wants some sun and sandy soil. And a couple friends in a succulent planter never hurt.

Fast grower Fast grower
Survivor Survivor
@lucyisfit avatar
leaf-1 3 Plants
xp 514 XP
globe Norwich, England

lives for ages

Survivor Survivor
@dagoodnoodle avatar
leaf-1 5 Plants
xp 193 XP
globe Maywood, NJ

I’ve had this little guys for almost 4 years as my
very first plant! He took a while to get to the size he is now but he’s a trooper. He’s the best 🥺💕🌵

Survivor Survivor
Bebe avatar
leaf-1 4 Plants
xp 479 XP
globe Saint-Denis, Île-de-France

Her little red flowers are the cutest and the strongest !

Survivor Survivor
Kelsey avatar
leaf-1 5 Plants
xp 182 XP
globe Alpharetta, GA

Whenever you think you should water it, wait a week and then go to water it but before you do, wait another week and then water it

Survivor Survivor
Fast grower Fast grower
Easy to propagate Easy to propagate
Blooms easily Blooms easily
@Yellowfellow avatar
leaf-1 9 Plants
xp 237 XP

This dude is so easy to care for,
I water him once a week and his thriving also I keep him next to the window because he really likes to sun bathe ❤️

@Lil.Lemon avatar
leaf-1 5 Plants
xp 108 XP

Very easy to look after and look really pretty, just be careful when handling them as it’s easy to get barbed

Survivor Survivor
Easy to propagate Easy to propagate
@ClariKatie avatar
leaf-1 30 Plants
xp 601 XP
globe Silver Spring, MD

Super slow growing but hardy cactus. Unfortunately they grow so slowly that if your husband accidentally knocks it to the floor and decapitates it, it will take time to recover but it won’t kick the bucket quickly so that’s good! Easy to deal with and interesting looking and a great conversation piece!

Survivor Survivor

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