Living Patio Groundcovers: Dichondra, Thyme, Irish Moss for Flagstone in Zone 9b

Stepables.com has a searchable database by traffic, light, height, flower. For Petaluma (Zone 9b):

• Creeping thyme (Thymus serpyllum): Low, fragrant, bee-attracting. 'Elfin' is ultra-compact.
• Irish moss (Sagina subulata): Mossy carpet, no flowers, needs consistent moisture.
• Dichondra repens: Kidney-shaped leaves, soft, tolerates light foot traffic.

Seeds are cheaper than plugs for large areas. Sow in spring, keep moist.