If you are buying commercial seed, assume it's older - then soak 24 hours, sow 41F, germination irregular, often several months. Freshly harvested seed, soak 24 hours, sow 70F for germination in approx 30 days.

Liriope muscari 'Variegata' There is nothing distinguishable between the two, but there will be someone who says otherwise. I suggest variegata variety because I use it at my house and like the contrast and because it faces north. Plant on tweleve inch staggered centers and I use bark mulch and have no weed problem. Just make certain you use manure and a handful of bone meal with each plant and water. Here is a link that might be useful: Propagating Perennials

Sharon, Looking at the picture you posted the original clumps of Liriope appear to have been planted around 6 inches apart. Over time they will grow, expand and knit together much like the picture. It is very hard to judge by a picture, but that is my guesstimate. Lou

i haven't talked to thress or kinsey. i've been dealing with another dealer, who is pricey. they did give me a wholesale discount on some skip laurels i recently bought....65 of them. but i know i can do better. i didn't know one can plant liriope from seed. i really want a thick groundcover on my hill....and this is a great plant for me, i believe. is it hard to start from seed? i'm not looking forward to making 1000+ holes....i did that on another hill where i planted about 3500 vinca minor. the size of this hillside is about 200 feet by 20 feet. the other hillside was about a factor of 3 longer.