Perennial Collection 4
Spring Planting: we begin shipping in late April through May beginning with the warmest hardiness zones, so you receive your products at the proper time for planting.
Sold as: Pkg of 3
Planting Columbine: These pots should be immersed in water upon arrival to thoroughly soak the root ball. These growing plants must be hardened off before planting outside. Keep in a cool bright room, and place outside on mild days and gradually leave outside for longer periods of time. After a week or so, or when nighttime temperatures are above freezing, plant outside. If a severe dip in temperature is expected, you may want to place straw or an old blanket over the green leaves to protect them from severe damage. Frost or cold will not permanently hurt the plant, but it may damage the new leaves and set growth back. Plant 12-18 inches apart, with crowns at soil level in well-drained, moist soil. Prefers part shade, especially if summers are hot. Deadhead regularly and water during dry periods. Usually grows 2-3 feet tall.
Planting Coreopsis: Soak bulbs in warm water for 2-3 hours before planting. Set tubers with tops 4-6" below the soil surface 12" apart. Apply a light application of granular 10-10-10 fertilizer or side-dress with compost and organic amendments when new growth appears. Water newly planted Coreopsis regularly if spring rains are sporadic. Water during drought, but Coreopsis is quite drought-tolerant once established. Daily deadheading, while onerous, will reward the gardener with almost continuous bloom. To achieve an attractive plant and possible rebloom in autumn, shear plants back by a few inches as flowering slows down in late July. Do not prune back all the way for the winter, as stems left standing will protect the crowns. Divide plants every three years in spring or early fall to maintain vigour. Simply dig a wide, shallow hole and set the spidery thing inside horizontally, covering with an inch of soil. Gravity will prevail, and the plant will send roots down and shoots up.
Planting Brunnera: Soak roots for a few hours before planting. Plant so that crowns are just below soil surface, 12-18” apart. Prefers fertile, organic, moist, well-drained soil and partial shade. Remove any all-green shoots from variegated plants. White leaf edges may scorch from hot sun or wind exposure. Little care is needed once Brunnera is established. Cut back the old foliage in the spring rather than in the fall; it will help to protect the crown during the winter. A winter mulch is also recommended.