Updated: June 5, 2022

Cleome plants, also known as spider flowers, are a popular addition to gardens due to their vibrant colors and unique appearance. These plants are easy to care for and can grow up to six feet tall. If you want to add some color and interest to your garden, here’s how to care for cleome plants.

Planting Cleome Plants

Cleome plants can be grown from seeds or purchased as seedlings. If you choose to grow them from seeds, start them indoors six weeks before the last frost date. Sow the seeds in a seedling tray and keep them moist until they germinate.

When planting cleome seedlings or transplants, choose a location that receives full sun or partial shade. The soil should be well-draining and rich in organic matter. Space the plants at least 18 inches apart to allow room for growth.

Watering Cleome Plants

Cleome plants require regular watering, especially during hot, dry weather. Water deeply once a week, or more often if the soil feels dry to the touch. Avoid overhead watering, as this can lead to fungal diseases.

Fertilizing Cleome Plants

Cleome plants benefit from regular fertilization throughout the growing season. Use a balanced fertilizer once a month, or apply a slow-release fertilizer at the beginning of the season. Follow the instructions on the fertilizer package for best results.

Pruning Cleome Plants

Cleome plants do not require pruning, but you may want to deadhead them to promote new blooms. Deadheading is the process of removing spent flowers before they form seed pods. This encourages the plant to produce more blooms and prolongs the blooming period.

Common Problems with Cleome Plants

While cleome plants are generally easy to care for, they can be affected by a few common problems:

  • Spider mites: These tiny pests can cause yellowing leaves and webbing on the plant. Treat with a neem oil spray or insecticidal soap.
  • Powdery mildew: This fungal disease appears as a white, powdery coating on the leaves. Improve air circulation around the plant and treat with a fungicide if necessary.
  • Leaf spot: This fungal disease causes brown spots on the leaves. Remove affected leaves and treat with a fungicide.

FAQ

How tall do cleome plants grow?

Cleome plants can grow up to six feet tall, depending on the variety.

Can cleome plants tolerate drought?

Cleome plants prefer consistent moisture but can tolerate some drought once established.

When should I plant cleome seeds?

Start cleome seeds indoors six weeks before the last frost date, or sow them directly in the garden after all danger of frost has passed.

Do cleome plants attract pollinators?

Yes, cleome plants are attractive to bees, butterflies, and other pollinators.

Can I grow cleome plants in containers?

Yes, cleome plants can be grown in containers as long as they have enough room to grow and are watered regularly.