Plant Care Giant Coreopsis

Giant Coreopsis

About Giant Coreopsis

Giant Coreopsis 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.

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


Coreopsis gigantea

Also known as

Giant Sea Dahlia

How to care for Giant Coreopsis


How often to water your Giant Coreopsis

Water needs for Giant Coreopsis
0.5 cups
every 9

Giant Coreopsis 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 Giant Coreopsis in your home

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

Giant Coreopsis love being close to bright, sunny windows 😎.

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

Giant Coreopsis does not tolerate low-light 🚫.

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


How to fertilize Giant Coreopsis

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

Water Needs
Sunlight Needs
Growth Pattern
Growing Outdoors

Care Summary for Giant Coreopsis

Giant Coreopsis

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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