Plant Care Scarlet Indian paintbrush

Scarlet Indian paintbrush

About Scarlet Indian paintbrush

Scarlet Indian paintbrush is a super rare houseplant 🌿 that is isn’t challenging to grow and needs regular watering to thrive. They do best in long-lasting, direct light ☀️ and should be less than 1 foot from a window.

Scarlet Indian paintbrush likes soil that is good at retaining moisture.

Scarlet Indian paintbrush belongs to the castilleja genus, and is native to Central Canada to the Eastern United States.


Castilleja coccinea

Also known as

Scarlet Indian paintbrush and scarlet painted-cup

How to care for Scarlet Indian paintbrush


How often to water your Scarlet Indian paintbrush

Water needs for Scarlet Indian paintbrush
0.5 cups
every 9

Scarlet Indian paintbrush needs 0.5 cups of water every 9 when it doesn’t get direct sunlight and is potted in a 5" pot located in Columbia, South Carolina.

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

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 Scarlet Indian paintbrush in Columbia, South Carolina

Columbia, South Carolina

55% Medium

Growing Scarlet Indian paintbrush in Columbia right now

Light needs for plant Scarlet Indian paintbrush in Columbia, South Carolina

Plant growth potential is currently low 📉

November 27th, 2021

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

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

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Light needs for plant Scarlet Indian paintbrush in Columbia, South Carolina

Sunlight intensity will decrease by 25.5% ☀️

November 26th, 2021

Columbia is trending towards lower sunlight intensity!

The amount of sunlight in Columbia is expected to decrease by 25.5% over the next 2 weeks to an average of 9.2 megajoules of energy per m2 pe…

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Light needs for plant Scarlet Indian paintbrush in Columbia, South Carolina

Daylight will decrease by 1.0 hours 📉

November 27th, 2021

This month, Columbia is getting an average of 9.2 hours of clear sky sunlight per day.

Hours of daylight will decrease by 8.9% over the next two weeks. Your plants will get 9.8 total hours of dayl…

Read more

Finding light for Scarlet Indian paintbrush in your home

Light needs and placement for plant Scarlet Indian paintbrush: 1ft from a window
1ft or less from
a window

Scarlet Indian paintbrush love being close to bright, sunny windows 😎.

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

Scarlet Indian paintbrush does not tolerate low light 🚫.

Columbia, South Carolina currently has medium levels of sunlight intensity, you can help this plant grow by treating it to ample light ☀️.


How to fertilize Scarlet Indian paintbrush

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

Difficulty Level

Scarlet Indian paintbrush 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!

Water Needs
Sunlight Needs
Growth Pattern
Growing Outdoors

Care Summary for Scarlet Indian paintbrush

Scarlet Indian paintbrush

Greg recommends:


0.5 cups every 9 days


< 1ft from a window


Repot after 2x growth

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

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