Plant Care Brown Knapweed

Brown Knapweed

About Brown Knapweed

Brown Knapweed 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.

Brown Knapweed likes soil that is well draining. Your plant shouldn't need added fertilizers if you repot each time it doubles in size.


Centaurea jacea

Also known as

brown knapweed and brownray knapweed

How to care for Brown Knapweed


How often to water your Brown Knapweed

Water needs for Brown Knapweed
0.5 cups
every 9

Brown Knapweed 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 Brown Knapweed in your home

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

Brown Knapweed love being close to bright, sunny windows 😎.

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

Brown Knapweed does not tolerate low-light 🚫.

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


How to fertilize Brown Knapweed

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

Water Needs
Sunlight Needs
Growing Outdoors

Care Summary for Brown Knapweed

Brown Knapweed

Greg recommends:


0.5 cups every 9 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.

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