How to Grow Black Mondo Grass


Black Mondo grass is a stylish, decorative grass that makes a striking edging or accent in the garden or container when planted next to lighter colored plants. Growing up to 10 inches tall in small, round clumps, with black foliage that stays shiny throughout the year, this low-maintenance plant is easy to grow--although it grows very slowly.

Step 1

Select a site in your garden with well-draining soil and full to partial sun.

Step 2

Dig a hole twice as large as the root ball. If planting multiple plants, space them about eight inches apart.

Step 3

Add manure or compost to the soil. A slow-release fertilizer can also be added to the soil, although it is not necessary as too much nitrogen can harm Black Mondo grass.

Step 4

Water well after planting. The soil should remain moist while the roots are establishing themselves in their new home, which takes approximately one month.

Step 5

Water occasionally thereafter, about once per week during growing season. Black Mondo grass requires very little maintenance otherwise.

Step 6

Cut dead leaves as they occur, but do not cut back completely.

Step 7

Cover well with mulch in the fall, and divide Black Mondo grass in early spring.

Things You'll Need

  • Shovel
  • Manure or compost
  • Slow-release fertilizer, optional
  • Water
  • Mulch


  • Moosey's Country Garden
  • Greenwood Nursery
Keywords: mondo grass, ornamental grass, garden borders, garden accent, black, slow

About this Author

Based in Baltimore, Maryland, Karen has worked four years as a professional writer and editor, writing for the online source eHow with articles such as "How to Make Chocolate Chip Biscotti" and "How to Make Marshmallow Fondant," and editing scripts for A Work In Progress, an inspirational radio drama.