Plant Care Arsenic Bean

Arsenic Bean

About Arsenic Bean

Arsenic Bean is a super rare houseplant 🌿 that needs regular watering to thrive. They do best in long-lasting, direct light ☀️ and should be less than 1 foot from a window.

Arsenic Bean likes soil that is well draining.

Arsenic Bean belongs to the Senna genus, and is native to Tropical and Subtropical America.

⚠️ Arsenic Bean is not safe to consume. If you, a family member, or a pet has ingested any amount of plant material contact Poison Control, US (800) 222-1222, or your veterinarian. If you have children, cats, or dogs in the home, we suggest keeping this plant out of reach.


Senna occidentalis

Also known as

Coffee Senna

How to care for Arsenic Bean


How often to water your Arsenic Bean

Water needs for Arsenic Bean
0.5 cups
every 9

Arsenic Bean needs 0.5 cups of water every 9 when it doesn’t get direct sunlight and is potted in a 5" pot located in Fort Collins, Colorado.

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 Arsenic Bean

Water 0.5 cups every

Does your plant get direct sunlight?

Select the pot size


Check the growing potential in your area

A plant's growing potential is determined from its location, the time of year, and current local weather.

Plant care guide for Arsenic Bean in Fort Collins, Colorado

Fort Collins, Colorado

36% Very Low

Growing Arsenic Bean in Fort Collins right now

Light needs for plant Arsenic Bean in Fort Collins, Colorado

Plant growth potential is currently low 📉

February 7th, 2023

Sunlight intensity as measured by “net radiation” in Fort Collins is currently low 📉.

The availability of high quality sunlight in your home impacts ability for plants to thrive and is key in dete…

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Light needs for plant Arsenic Bean in Fort Collins, Colorado

Sunlight will increase by 42.1% ☀️

February 2nd, 2023

Fort Collins is trending towards greater sunlight intensity!

The amount of sunlight in Fort Collins is expected to increase by 42.1% over the next 2 weeks to an average of 10.9 megajoules of energ…

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Light needs for plant Arsenic Bean in Fort Collins, Colorado

Daylight will increase by 1.3 hours 📈

February 6th, 2023

This month, Fort Collins is getting an average of 8.4 hours of clear sky sunlight per day.

Hours of daylight will increase by 13.3% over the next two weeks. Your plants will get 10.6 total hours o…

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Finding light for Arsenic Bean in your home

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

Arsenic Bean love being close to bright, sunny windows 😎.

Place it less than 1ft from a south-facing window to ensure it receives enough light to survive during this time of reduced sunlight intensity in Fort Collins, Colorado ⛅.

Arsenic Bean does not tolerate low-light 🚫.


How to fertilize Arsenic Bean

Nutrient, fertilizer, and repotting needs for Arsenic Bean: 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 Arsenic Bean after it doubles in size or once a year—whichever comes first.

Water Needs
Sunlight Needs

Care Summary for Arsenic Bean

Arsenic Bean

Arsenic Bean

Greg recommends:


0.5 cups every 9 days


< 1ft from a window


Repot after 2x growth

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

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