How to Care for Cosmos sulphureus (Sulphur Cosmos)

Korean name: 노랑코스모스

Sulphur cosmos is a flowering plant characterized by its bright yellow petals and fine leaves. It grows tall with branching stems that sway easily in the wind. It is easy to care for, making it suitable for beginners.

Key facts

• Category: Flowering plant
• Difficulty: Easy
• Where to keep: outdoors
• Native to: Mexico
• Growth rate: Fast
• Pets: Mildly toxic, so keep pets from chewing on it.
• Flower meaning: peace, love, harmony
• Traits: beginner-friendly, flowering plant, sun-loving, fast-growing, showy flowers
• Also known as: Sulphur Cosmos, Yellow Cosmos

Care Guide

• Light: Requires plenty of sunlight.
• Watering: Water thoroughly when the soil is dry.
• Soil: Prefers well-drained soil.
• Humidity: Thrives in normal to low humidity.
• Temperature: 18~27°C
• Fertilizer: Apply mild liquid fertilizer once or twice a month during growing season.

Common questions

How often should you water Cosmos sulphureus?

Water thoroughly when the soil is dry. Roughly every 7 days is the baseline; adjust for the season and the spot it sits in.

Where should you keep Cosmos sulphureus?

It likes Requires plenty of sunlight.. You can grow it outdoors. Use Prefers well-drained soil..

Is Cosmos sulphureus safe around pets?

Mildly toxic, so keep pets from chewing on it.

Is Cosmos sulphureus good for beginners?

Difficulty: Easy. It is forgiving enough for a first plant. Keep it around 18~27°C. Humidity: Thrives in normal to low humidity.. Fertilise Apply mild liquid fertilizer once or twice a month during growing season..