Suprisingly, coreopsis auriculata Nana is a relatively unknown cultivar of Coreopsis. This is a great plant for edging around a rock garden or other border. It is also grows well in nearly any garden container or pot. If placed in a hanging basket, water daily. From a small mound of leathery-green leaves, bright golden daisy-like blooms emerge in late spring and early summer. Remove fading blooms early to encourage continued blooming. We find it easiest to just pop off the bloom as soon as it darkens. The appearance of the stems is negligible. Although Coreopsis auriculata Nana tolerates hot, humid summers, it does not like to dry out. So be sure to water regularly or as soon as the leaves begin to droop. One can easily divide the plants in early spring or late fall.
Winchester Gardens generally stocks this plant in summer.
Plant in spring, spacing plants 2 to 3 feet apart, depending on the variety. Prepare the garden bed by using a garden fork or tiller to loosen the soil to a depth of 12 to 15 inches, then mix in a 2- to 4-inch layer of compost. Dig a hole twice the diameter of the pot the plant is in. Carefully remove the plant from its container and place it in the hole so the top of the rootball is level with the soil surface. Carefully fill in around the rootball and firm the soil gently. Water thoroughly.
Apply a thin layer of compost each spring, followed by a 2-inch layer of mulch to retain moisture and control weeds. Water plants during the summer if rainfall is less than 1 inch per week. Stake tall varieties to keep them upright. After the first killing frost, cut stems back to an inch or two above soil line. Divide plants every few years as new growth begins in the spring, lifting plants and dividing them into clumps.
Salvia – The purplish-blue blooms of perennial salvia create a wonderful companion to golden coreopsis.
Veronica – The upright spires of spike speedwell stand in stark contrast to the lax and billowy form of coreopsis. Blue-flowered varieties look especially good with coreopsis.
Yarrow – To make the sunny perennial border sing with color, pair the golden hues of ‘Coronation Gold’ yarrow with bright yellow or gold-and-red bicolor coreopsis.