English Thyme 10-15-inch. Hardy Perennial Essential to every herb garden, this small, upright shrub (10-15-inch ) is the classic culinary variety. As a strong aromatic herb, it can attract a multitude of honeybees. Assertions have been made supporting its efficacy in combating asthma and hypertension. Zones 5-9. Soil Temp. for Germ: 60-70-Degree F, day to Germ: 21-28 Plant Spacing: 6-inch 12-inch, day to Maturity: 180-240 Partial Shade to Full Sun Moderate Water, 200 Seed Count