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Cornflower

Also known as

Bachelor's button and Cornflower - blue ball

Taxonomy

Scientific name

Centaurea cyanus

Genus

Centaurea

Family

Asteraceae

Order

Asterales

How to care for Cornflower

💦 Water

How often to water your Cornflower

Cornflower 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
9

Does your plant get direct sunlight?

No Yes

Select the pot size

☀️ Light

Finding light for Cornflower in your home

Cornflower love being close to bright, sunny windows 😎.

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

Cornflower does not tolerate low-light 🚫.

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

🪴 Nutrients

How to fertilize Cornflower

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

💡 FAQs

⭐ Difficulty Level

Cornflower can be challenging to care for, according to some plant parents. Check out the reviews down below to learn from their experiences!

How to Grow Cornflower →

Benefits of Growing Cornflower →

Common Cornflower Problems →

Outdoor Care Guide for Cornflower →

💦 Water Needs

Cornflower prefers for the soil to dry out between waterings and should be watered regularly. Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Cornflower Water Frequency →

Cornflower Root Rot →

☀️ Sunlight Needs

Cornflower requires abundant, bright and direct light. Place it less than one foot from a window to ensure it receives enough light to survive 💪. Select your region to see how the current weather in your area affects the placement in your home 🏡.

Cornflower Light Requirements →

Cornflower Direct Sunlight Needs & Tolerance →

🐶 🐈 👶 Toxicity

Cornflower is not known to cause harm to humans or pets. Regardless, if you, a family member, a cat, or dog has ingested any plant material, please consult a doctor or a veterinarian.

Is Cornflower Edible? →

Cornflower Toxicity to Cats →

Cornflower Toxicity to Dogs →

Cornflower Toxicity to Humans →

🪴 Soil

Cornflower does best in well-draining soil. A good soil will contain lots of organic matter such as coco coir as well as perlite or vermiculite to help with drainage. Adding a handful of perlite to regular store-bought potting soil should do the trick!

Best Soil Mix for Cornflower →

Best Pots for Cornflower →

When and How to Successfully Repot Cornflower →

What Are Healthy Cornflower Roots →

💩 Fertilizer

Cornflower should be repotted after it doubles in size or once a year, whichever comes first. Fresh potting soil has all the nutrients your plant needs, so as long as it’s refreshed yearly, you shouldn’t need to use fertilizer. Remember, plants get their energy from sunlight, not fertilizer!

How Much and When to Fertilize Cornflower →

⬆️ ⬇️ Growth Pattern

Cornflower grows vertically and new growth will emerge from the top of the plant.

Cornflower Lifecycle →

Cornflower Size Guide →

How and When to Prune Cornflower →

🌦️ Growing Outdoors

USDA Hardiness Zone
Cornflower can be grown outdoors in USDA Hardiness Zones 2a-11b. Find your local hardiness zone here.

Cornflower Temperature Tolerance →

Cornflower Hardiness Zones →

Landscaping Ideas with Cornflower →

When to Plant Cornflower →

How to Plant Cornflower →

Where to Plant Cornflower →

Winter Care for Cornflower →

Best Companion Plants for Cornflower →

Is Cornflower a Weed? →

🌱 Propagation

The seeds of Cornflower can be used to grow new plants! After your plant flowers, any seeds that formed can be collected and germinated in potting soil.

How to Propagate Cornflower →

🍂 Yellow Leaves

Yellow leaves aren’t always a reason to panic, and can be a normal part of a plant’s life cycle. Unless brand new leaves are turning yellow or all the leaves change color at once, it’s likely just your plant shedding old leaves.

Overwatering and root rot are the most likely cause of problems in Cornflower, since they are sensitive to wet soil. The leaves may also appear to be curling or drooping. Less often, yellow leaves are caused by underwatering, nutrient deficiencies, or pests.

Replace soggy soil with fresh, dry soil and download Greg to make sure your plant never gets overwatered again!

🧐 Troubleshooting

When troubleshooting a sad-looking houseplant, start by checking for signs of distress in its leaves, such as yellowing, browning, or drooping, which can indicate overwatering or nutrient deficiencies.

Inspect the soil moisture; too dry or too wet soil can cause problems.

Ensure the plant is getting the right amount of light, as too much or too little can stress it.

Finally, consider environmental factors like temperature and humidity, and adjust care routines accordingly to revive your plant.