Coreopsis, commonly known as tickseed, are reliable, long-flowering perennials valued for their bright daisy-like blooms and low-maintenance nature. Native to North America, they perform well in sunny borders, cottage gardens, and informal plantings.
Popular species such as Coreopsis verticillata and Coreopsis grandiflora offer extended flowering from late spring through to autumn, with colours ranging from yellow and gold through to deep red and pink bi-tones.
Suggested Alt Tag: Coreopsis flowers in mixed colours growing in a sunny garden border
Popular Coreopsis Varieties
Compact and Border-Friendly Types
- Coreopsis ‘Limerock Ruby’: Compact mound to around 50 cm with rich ruby-red flowers; long flowering and ideal for edging.
- Coreopsis ‘Fruit Punch’: Low-growing (around 40 cm), with pink, red, and white tones; neat habit and easy to maintain.
Taller Flowering Forms
- Coreopsis ‘Sweet Dreams’: Up to 70 cm tall, with raspberry red and cream bi-colour flowers; moves well in light wind and suits mid-border planting.
Species to Consider
- Coreopsis verticillata: Fine, feathery foliage with a softer, more refined look.
- Coreopsis grandiflora: Larger blooms, slightly bolder growth habit.
How To Grow Coreopsis – Basic Care
- A humus rich moist soil and a sunny position will see most varieties’ thrive.
- Well drained soil is essential, however moisture during the growing season is required.
- After the first flush of flowers the plant can be clipped back with some garden shears to encourage a better second flush of flowers. This can be repeated.
Growing Conditions
Light
Full sun is essential for strong flowering. Plants will tolerate light shade but may become leggy with fewer blooms.
Watering
Once established, Coreopsis are reasonably drought-tolerant. However, during extended dry periods, occasional deep watering will improve flowering.
Position
Best suited to open, sunny positions with good airflow. Ideal for borders, mass planting, and cottage-style gardens.
Soil Preparation and Planting Time
Soil Requirements
Coreopsis prefer well-drained soil enriched with organic matter.
Practical mix for garden beds:
- Existing soil improved with compost or well-rotted manure
- Add coarse sand or grit if drainage is poor
Avoid overly rich soil, which can lead to excessive leafy growth at the expense of flowers.
Planting Time
- Spring and early autumn are ideal planting times
- Avoid extreme heat or frost periods
- In cooler regions, plant after last frost
Planting Tips
- Prepare soil by loosening and adding compost
- Space plants 30–50 cm apart depending on variety
- Water in well after planting
- Apply light mulch to retain moisture
Ongoing Care and Maintenance
Feeding
Apply a light general-purpose fertiliser in spring. Avoid heavy feeding.
Pruning and Deadheading
- Remove spent flowers regularly to extend blooming
- After first flush, trim plants back by one-third to encourage repeat flowering
Dividing
- Divide clumps every 2–3 years in early spring
- Helps maintain vigour and improves flowering
Pests and Problems
- Generally pest-resistant
- Watch for root rot in poorly drained soils
Propagation Techniques
Division (Easiest Method)
- Lift and divide clumps in early spring
- Replant divisions immediately
Cuttings
- Take softwood cuttings in late spring
- Root in a free-draining mix under light shade
Seed
- Sow in spring in trays or directly into garden
- Some hybrids may not come true from seed
Practical Tips for Home Gardeners
- Best effect comes from planting in groups or drifts
- Combine with grasses or salvia for a natural look
- Avoid overwatering once established
- Great for attracting pollinators like bees and butterflies
Coreopsis are available for sale from the following nurseries
'Umbango' 750 Humula Rd, Humula NSW 2652
Phone 0408692773 Great Range of Perennial plants available for sale by mail order.
www.nutshellnursery.com.au
We are Asked
How long do Coreopsis flower for?
Most varieties flower from late spring through to autumn, especially with regular deadheading.
Do Coreopsis come back every year?
Yes, most are perennial, although some shorter-lived varieties may benefit from regular division.
Are Coreopsis drought tolerant?
Once established, they tolerate dry periods, but perform best with occasional watering in extended heat.
Can Coreopsis grow in pots?
es, compact varieties like ‘Limerock Ruby’ and ‘Fruit Punch’ perform well in containers with good drainage.