105-112 days. Floral Lace Series dianthus seeds promise a unique, vibrant, and low-maintenance grow for season-long dazzle to any home, garden, or patio. Floral Lace Series dianthus is durable and easy to grow from seed, ideal for partially shaded planters and window boxes, or as a full sun border around the flower bed. Floral Lace Series dianthus seeds mature into neat 8-10 inch tall cascading mounds covered in gorgeous 1-2 inch ruffled blooms. Dianthus is native to a variety of gardens across the world and will deliver elegant color to your garden all the way to the frost.