Cleome, often referred to as Spider Flower, is a strikingly unique and easy-to-grow plant native to South America.
Known for its drought tolerance and ability to thrive in various soil types, Cleome is an excellent choice for gardeners looking to add a touch of drama and color to their garden with minimal effort. This guide will walk you through everything you need to know to successfully grow Cleome from seed.
Botanical Overview
Cleome seeds can be started indoors about 6-8 weeks before the last frost date or directly sown into the garden about 3-4 weeks after the last frost. For a prolonged blooming period, consider sowing seeds every two weeks into early summer.
The seeds typically sprout within 10-14 days. If starting indoors, use a vernalization process by placing seeds on moistened, sterilized seed starting mix and storing them in a refrigerator for two weeks. After this period, provide bottom heat to maintain soil temperatures between 21-25°C (70-75°F) and ensure they receive bright light.
Growing Tips
Cleome prefers full sun but tolerates very light shade.
Once established, Cleome is very undemanding. The plants usually have strong, upright stems but may require support in windy or exposed garden areas. Cleome is particularly well-suited for xeriscaping due to its drought resistance.
To control its spread, as Cleome is known to self-sow robustly, remove flower heads before the seeds ripen unless you prefer natural reseeding.
Cleome's adaptability to moist and dry conditions makes it an ideal choice for garden settings. Whether you're a beginner or an experienced gardener, Cleome can provide a spectacular display with its tall, spider-like flowers that are sure to attract pollinators such as bees and butterflies.
Get started on your Cleome Garden today to bring life and color to your outdoor space throughout the growing season.