Cornflower
Centaurea cyanus · Knapweeds · Aster family
Also known as: Bachelor's Button · Bluebottle
Very easy40–90cmPet-friendlyEdible
Cornflower care at a glance
Cornflower (Centaurea cyanus) needs little water and prefers to grow in full sun. Ideal temperature: 15–24 °C.
- Water need
- Low
- Light
- Full sun
- Soil moisture
- Dry
- Nutrients
- Low
- Ideal temperature
- 15–24 °C
- Life cycle
- Annual
Pests & Diseases on Cornflower
Possible pests on Cornflower include Aphids and Mealybugs. Possible diseases include Powdery mildew, Stem rot and Rust. Cornflower is considered pet-friendly.
Pest
- Aphids Low
- Mealybugs Low
Disease
- Powdery mildew Medium
- Rust Low
- Stem rot Medium
A baseline from curated sources, not a command. You decide in the end.
Frequently asked questions about Cornflower
- Which pests affect Cornflower?
- Possible pests on Cornflower include Aphids and Mealybugs.
- Which diseases affect Cornflower?
- Possible diseases include Powdery mildew, Stem rot and Rust.
- Is Cornflower toxic to cats and dogs?
- Cornflower is considered pet-friendly and safe for cats and dogs.
- How much water does Cornflower need?
- Cornflower has a low water requirement.
- What light does Cornflower need?
- Cornflower prefers to grow in full sun. Around 6 hours of light per day is ideal.
- Is Cornflower frost-hardy?
- Cornflower is frost-hardy and tolerates frost. Its lower limit is around -15 °C.
- Can you eat Cornflower?
- Yes, the edible parts are mainly: flowers.