Tick weed, more commonly known as tickseed or coreopsis, is a flowering perennial native to North America. Plants reach up to 4 feet in height and produce yellow, daisy-like flowers in summer through early fall. Valued for its ease of care, dependable performance, adaptability to a variety of growing conditions and attractive blooms, tick weed is generally undemanding once established. Hardy in USDA Zones 4 through 9, tick weed thrives in most areas of the country with very little care.
Plant tick weed during spring after all threat of frost is over in a location that receives full sunlight and has moist, fertile, well-drained soil. Space tick weed plants at least 2 to 3 feet apart to allow adequate room for growth.
Apply a 4-inch layer of organic compost to the soil before planting and use a garden tiller to work the material into the soil to further increase fertility and drainage. Till the soil to a depth of 12 to 15 inches to thoroughly amend and loosen the soil.
Spread a 2-inch layer of mulch over the soil surrounding tick weed plants to deter the growth of competitive weeds and improve moisture retention. Replenish the mulch as often as needed throughout the year to keep it about 2 inches thick.
Water tick weed once per week during the spring and fall to help establish the plant's root system. Reduce watering frequency during summer to only weeks that receive less than 1 inch of rainfall. Do not water during winter, when active growth has ceased.
Feed tick weed once per year during spring, just after new growth begins. Apply a balanced 10-10-10 NPK fertilizer to provide proper nutrition for root and flower development. Fertilize following the manufacturer's directions for the best results.