Nasturtiums as Ground Cover: Tips for Spreading and Care

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Nasturtiums are a popular choice for gardeners looking to add vibrant color and practical ground cover to their outdoor spaces. Their bright blooms and easy maintenance make them ideal for covering large areas of soil while also attracting pollinators like bees and hummingbirds.

Why Choose Nasturtiums as Ground Cover

Nasturtiums are versatile and fast-growing annuals that can quickly fill in bare spots in your garden. They are known for their edible leaves and flowers, which add a peppery flavor to salads. Their sprawling habit helps suppress weeds and reduce soil erosion, making them a practical option for ground cover.

Tips for Spreading Nasturtiums

  • Start from seeds: Sow nasturtium seeds directly into prepared soil after the last frost date. Plant them about 1/2 inch deep and space them 10-12 inches apart.
  • Provide ample sunlight: Nasturtiums thrive in full sun, which encourages vigorous spreading and abundant blooms.
  • Maintain soil moisture: Keep the soil evenly moist but not waterlogged to promote healthy growth.
  • Use containers or hanging baskets: For limited space, you can start nasturtiums in containers and allow them to cascade over the edges.

Care and Maintenance

Although nasturtiums are low-maintenance, a few simple practices will keep them healthy and thriving as ground cover.

  • Water regularly: Ensure consistent watering, especially during dry spells, to promote continuous spreading.
  • Fertilize sparingly: Use a balanced, diluted fertilizer once or twice during the growing season to support growth.
  • Control pests: Watch for aphids and caterpillars, and remove them by hand or with natural insecticides.
  • Prune as needed: Trim back overly leggy stems to encourage bushier growth and more coverage.

Additional Tips for Success

To maximize coverage, consider planting nasturtiums in areas with good drainage and full sun. Mulching around the plants can help retain moisture and suppress weeds. With proper care, nasturtiums can quickly transform bare patches into vibrant, flowering ground cover that enhances your garden’s beauty and ecology.