Plant Care Blackspot Hornpoppy

Blackspot Hornpoppy

Also known as

black-spot horned-poppy, bristly horned-poppy and red horned-poppy


Glaucium corniculatum

How to care for Blackspot Hornpoppy


How often to water your Blackspot Hornpoppy

Water needs for Blackspot Hornpoppy
0.5 cups
every 9

Blackspot Hornpoppy needs 0.5 cups of water every 9 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.

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.

Select a city to check sunlight intensity

Finding light for Blackspot Hornpoppy in your home

Light needs and placement for plant Blackspot Hornpoppy: 3ft from a window
3ft or less from
a window

Blackspot Hornpoppy may have difficulty thriving, and will drop leaves 🍃, without ample sunlight.

Place it less than 3 feet from a south-facing window to maximize the potential for growth.

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


How to fertilize Blackspot Hornpoppy

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

Water Needs
Sunlight Needs

Care Summary for Blackspot Hornpoppy

Blackspot Hornpoppy

Greg recommends:


0.5 cups every 9 days


< 3ft from a window


Repot after 2x growth

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

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