Downy mildew Easily grown from seed. Coreopsis is ignored by deer Very versatile, it is a welcomed addition to cottage gardens, rock gardens, naturalized areas, … There aren’t usually many pests or diseases which negatively impact a coreopsis plant, but on occasion you may notice some issues developing. The description of these plants has been written based on numerous outside resources. Check these Great Plant Combination Ideas with Coreopsis, A Casual Border with Poppies, Tickseed and Mullein, A Prairie Planting Idea with Easy Care Annuals and Perennials, A Spectacular Summer Planting Idea with Dahlia, Zinnia, Chinese Aster and Ammi visnaga, A Great Summer Planting Idea with Mexican Sunflowers, Zinnia and Grasses, A Terrific Duo to Try: Achillea and Festuca, A Cheerful Border Idea with Monarda, Clematis and Artemisia, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, H1, H2, Deer, Drought, Rabbit, Dry Soil, Rocky Soil, Coreopsis grandiflora (Large Flower Tickseed). Coreopsis is ignored by deer; Very versatile, it is a welcomed addition to cottage gardens, rock gardens, naturalized areas, prairies and meadows. If allowed to go to seed, blooming will stop and the plant will tend to decline. Sclerotium rolfsii: Remove infected plants. Coreopsis is, Very versatile, it is a welcomed addition to. It may not always be reliably perennial, but it reseeds itself, keeping a cheerful presence in the landscape. A showstopper in the summer garden, Coreopsis grandiflora (Large Flower Tickseed) is a clump-forming perennial wildflower boasting a profusion of showy bright yellow flowers, 2-3 in. These wiry stems sway gently in the slightest breeze and create sunny movement in the landscape. Garden Uses. Crown rot may occur if grown in moist, poorly drained soils. The foliage of this cultivar is reported to good resistance to powdery mildew. Deadheading of spent flowers will keep the plant blooming. Crown rot may occur in poorly drained soils. Crown rot may occur in poorly drained soils. Large Flower Tickseed is an excellent pollinator plant, attracting bees, butterflies and other pollinating insects. Use in the border or rock gardens and in swaths to provide a long season of color. No serious pest or disease issues. Consistently damp weather may cause a variety of problems for this plant, including slug or snail damage and fungal spots in addition to powdery mildew. It is advisable, however, to make sure that the top of the liner matches evenly with the top of the soil in the pot to prevent stem and crown rot. Plants in the genus Coreopsis are sometimes commonly called tickseed in reference to the resemblance of the seeds to ticks. Tends to sprawl, particularly if grown in moist and/or fertile soils. Crowns and Roots Rot Due to Crown Rot Crown and root rot, caused by soil-dwelling bacteria and fungi, occasionally attack coreopsis. To use the website as intended please  In damp seasons, coreopsis may get snails, slugs and fungal diseases. Spectacular in mass plantings. The most common which may arise in some varieties is sprawl, poor bloom, die back, crown rot and pest infestation. The lowermost leaves are lobeless and linear. To create additional collections, you must be a paid member of our site. Join now and start creating your dream garden! Note this is the default cart. Crown, Stem and Root Rot The Sclerotium rolfsii fungus causes crown rot in coreopsis plantings. Deleting this collection CANNOT be undone. across (5-7 cm), from late spring to late summer - if spent flowers are deadheaded. Spreads by rhizomes and freely self seeds in the landscape, becoming somewhat weedy. Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. Divide every 3-4 years to maintain robustness. Crown rot may occur if grown in moist, poorly drained soils. We use cookies on this website, you can read about them here. Native to central and eastern North America. Coreopsis usually has few serious insect or disease problems. tall (45-75 cm) and 12-18 in. Also effective in naturalized areas, meadows, prairies or cottage gardens. This plant actually thrives in average soil that’s not nutrient- or organically-rich. Mulch in a manner that does not hold moisture close to the stems. Borders. Accept the fact that, for the most part, Coreopsis tends to be a short-lived species. Poor drainage can cause crown and root rot. It is hardy to zone 5. Coreopsis can suffer from crown rot (Sclerotium fungus), root rot (Rhizoctonia fungus) and stem rot (Alternaria, Rhizoctonia or Sclerotinia fungi). Sometimes new shoots may fail to emerge in the spring. Crown rot: Plants wilt, brown, and die. Attractive to butterflies but ignored by deer! Good plant for areas with poor, dry soils. They are valued for their long season of bloom, right up until frost. Crown rot may occur if grown in moist, poorly drained soils. Keep an eye out for powdery mildew, leaf spot and rust. While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates.

The threadleaf Coreopsis verticillata are increasingly popular. Coreopsis is not as sensitive to planting depth as other plants, since they readily root up the stem. Compact plants are less likely to sprawl than taller varieties of coreopsis. Not sure which Coreopsis to pick?Compare All Coreopsis, Buy Coreopsis grandiflora (Large Flower Tickseed), Great Plant Combination Ideas with Coreopsis. Only plants will be removed from the collection. Problems: No serious insect or disease problems. Cut back hard in summer if foliage sprawls or becomes unkempt. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas. Deadheading of spent flowers will keep the plant blooming. across (30-45 cm). The Sclerotium rolfsii fungus causes crown rot in coreopsis plantings. White fungal webbing forms around the base of the plant, and the leaves and blossoms turn brown as they wilt and die. SUMMARY . Cookies, This site is protected by reCAPTCHA and the Google, Coreopsis verticillata 'Moonbeam' (Threadleaf Coreopsis), Coreopsis rosea 'Sweet Dreams' (Pink Tickseed), Coreopsis grandiflora 'Early Sunrise' (Tickseed), Native Plant Alternatives to Lantana camara (Largeleaf Lantana), Native Plant Alternatives to Euphorbia cyparissias (Cypress Spurge), Want Garden Inspiration? Common problems with the coreopsis plant and troubleshooting. Create a membership account to save your garden designs and to view them on any device. Provide consistent fertilization for optimum flowering and growth. Fungicides at planting are usually not necessary. The blossoms are held high above the foliage on slender, erect stems clad with pinnatifid and deeply lobed bright green leaves. Grows up to 18-30 in. Ajuga reptans or Bugleweed has been selected here by Arthur... Use our interactive toolsto design your dream garden. Accept Mature plants may be increased by division in the spring or fall. White fungal growth webs at the base of the dying plant and become peppered with small, tan, round structures. Crown rot may occur in poorly drained soils. Tolerant of heat, humidity and drought, Large Flower Tickseed is a real workhorse in hot and often dry summer gardens. It is most likely to occur in a late winter thaw when dead leaves decompose on the ground and harbor bacteria and fungi which spread to healthy plants. Root rot can also be caused by the Rhizoctonia fungus, although sometimes Phymatotrichopsis is the cause.