How to Germinate Herniaria Glabra

Herniaria glabra is the botanical name for a plant that is commercially sold under the nickname “rupturewort,” left over from the days when the plant was used as a poultice for scrapes and cuts. A patented variety, “Green Carpet,” is commonly sold in nurseries and gardening centers. H. glabra is an ornamental groundcover, native to England. Growing to 2 inches tall, although it creeps, it has a taproot, instead of rhizomes like other creepers. H. glabra thrives in poor, sandy soil in full sun or partial shade. Herniaria glabra is best grown within zones 7 and above on the US Department of Agriculture Plant Hardiness Zone Map.

Things You'll Need

• Nursery flat
• Sand
• Seed starting mix
• Spray bottle
• Heat mat
• Individual planting pots

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Instructions

1. • 1

     Wait until spring to sow the Herniaria glabra seeds.

   • 2

     Fill a flat with equal parts of sand and seed starting mix, moisten it and allow it to drain until the mix is moist. Scatter the seeds over the surface of the mix and sprinkle a 1/8-inch layer of sand over them. Squirt the sand layer with water until it is moist.

   • 3

     Place the flat in indirect sun, on a heat mat set to 68 degrees F. H. glabra seeds germinate within 10 to 12 days.