Why Dwarf Mondo Grass Seed Is Nearly Impossible for Homeowners to Grow

The Mondo Grass Seed Dilemma

Dwarf mondo grass (Ophiopogon japonicus ‘Nanus’) is a popular groundcover, but establishing it from seed is extraordinarily difficult for home gardeners. The seeds have complex dormancy requirements, low viability, and extremely slow germination—often taking many months with unpredictable results.

Practical Alternatives

• Buy plugs or small pots: Though more expensive upfront, you get instant coverage and uniform growth.
• Divide existing clumps: If you or a neighbor have established plants, spring division is free and reliable.
• Consider alternatives: Creeping lilyturf (Liriope spicata) or dwarf mondo cultivars sold as liners establish much faster.

If You Still Want to Try Seed

Commercial sources are scarce. Two potential leads (wholesale inquiries may be required):

• Cool Tropical Plants
• FAS Nurseries – ask about wholesale terms

Even with fresh seed, expect germination rates below 20% and a year or more before plants reach transplant size.