Coreopsis tinctoria, commonly known as plains coreopsis or golden tickseed, is an annual flowering plant native to North America. Here's a description of its key characteristics:
Appearance: Coreopsis tinctoria typically grows to a height of about 30 to 60 centimeters (12 to 24 inches). It has slender, branching stems and a bushy, somewhat airy appearance. The plant forms dense clumps or mats.
Leaves: The leaves of plains coreopsis are alternate, meaning they grow singly along the stem, and they are typically finely divided into narrow segments. The leaves are usually medium green in color and can vary in size but are generally small compared to the size of the plant.
Flowers: The flowers of Coreopsis tinctoria are the main attraction, featuring bright yellow to orange-red, daisy-like blooms with contrasting dark red centers. Each flower head is typically around 2 to 3 centimeters (0.8 to 1.2 inches) in diameter. The flowers are borne singly or in small clusters at the ends of the stems.
Blooming Period: Plains coreopsis typically blooms from late spring through summer and sometimes into fall, depending on growing conditions. The flowers attract various pollinators, including bees, butterflies, and other insects.
Habitat: This species is commonly found in open, sunny habitats such as prairies, meadows, roadsides, and disturbed areas. It prefers well-drained soil and full sun but can tolerate a wide range of soil types.
Cultural Uses: Coreopsis tinctoria is popular in wildflower gardens, meadows, and naturalized landscapes for its bright and cheerful flowers. It is easy to grow from seed and can self-sow under favorable conditions. It also makes a good cut flower for arrangements.
Ecological Importance: Like other Coreopsis species, C. tinctoria provides nectar and pollen for pollinators, supporting local biodiversity. Its seeds are also a food source for birds and small mammals.

Growing Instructions for the Plains Coreopsis

The seeds can be sown on the ground in the spring or summer or they can be grown in pots at any time of the year. 1. The seeds like moist, well-drained soil. Use a sterile seed starter mix, if available. It prevents soil fungi from damaging the seeds and the seedlings. If not available, then make a mixture of half potting soil and half sand, perlite or vermiculite. 2. Put the soil in a pot. 3. Sow the seeds on the soil. 4. Water the soil so that it is moist but not wet. 5. Place the pots in an area with warm temperatures in full sun or part shade. The seeds germinate in 5 to 20 days. 6. When the seedlings are a few inches tall, they can be transplanted.