Tall tickseed (Coreopsis tripteris)

Also known as: Tall coreopsis

Tall tickseed, known scientifically as Coreopsis tripteris, is named for its impressive height. This perennial can grow up to 2 to 2.5 meters tall. Be mindful of its tendency to spread aggressively when choosing a planting location. It’s easy to grow from seed and produces an abundance of bright yellow flowers.

In This Article

Care Tips Water Sunlight Temperature Soil Fertilize Prune Propagation Repotting

Attributes of Tall tickseed

Lifespan

Perennial

Plant Type

Herb

Plant Height

1 m to 2 m

Spread

1.2 m to 2.5 m

Leaf Color

Green

Flower Size

5 cm

Flower Color

Yellow Brown Gold

Images of Tall tickseed

Quickly Identify Tall tickseed

Vibrant yellow, daisy-like flowers with short outer bracts

Tall stems up to 8 feet (240 cm) in height

Anise-scented leaves divided into lanceolate segments

Brown achene fruit with lighter-winged margins, oval shape

Smooth leaves with prominent vein pattern, lower leaves stalked

Scientific Classification of Tall tickseed

Phylum

Vascular plants

Class

Dicotyledons

Order

Asterales

Family

Daisy

Genus

Calliopsis

Species

Tall tickseed

Planting and Growing of Tall tickseed

Care Difficulty

Easy

Watering Schedule

Every 4 days

Sunlight Requirements

Full sun

Sunshine Duration

4-8 hours

Ideal Temperature

65-75℉

Soil Type

Potting Mix, Peat Mix

Soil pH

6.5-7.5

Fertilizer Type

Balanced

Pruning Season

Spring, Summer

Pruning Area

Branches, Leaves

Pruning Frequency

2 times a year

Repotting Season

Spring

Pot Type

Plastic, Ceramic

How to Water Tall tickseed?

Coreopsis tripteris generally requires moderate watering, ideally about 500 milliliters per session. The principle to follow here is to water deeply but infrequently, allowing the topsoil to dry out between waterings. This mimics its natural environment, preventing root rot and promoting healthy plant growth.

What are the symptoms of an underwatered Tall tickseed? ›

What should I do if my Tall tickseed is not getting enough water? ›

What are the symptoms of an overwatered Tall tickseed? ›

How to save an overwatered Tall tickseed? ›

What Are the Sunlight Requirements for Tall tickseed?

Sunlight Requirements: Full sun

Duration of light: 6 to 8 hours

Full sunlight is akin to a growth booster for Coreopsis tripteris, promoting enviable bloom cycles and greater photosynthesis, essential for healthy development.

How much sunlight does Coreopsis tripteris need? ›

What are the benefits of optimal sunlight? ›

How can I ensure optimal light conditions indoors? ›

More About Sunlight Requirements Techniques→

What Is the Ideal Temperature Range for Tall tickseed?

Ideal Temperature: 65 ~ 75℉

For Coreopsis tripteris to thrive, maintain temperatures between 65°F and 75°F. This range mimics the plant's natural habitat, promoting optimal growth, vigorous blooming, and robust health. Environmental stability is key, ensuring consistent warmth and avoiding fluctuations that can stress the plant.

What Soil is Best for Tall tickseed?

Soil type: Loam, Sandy loam, Sand soil

Soil PH: 6.5 ~ 7.5

Coreopsis tripteris thrives in well-drained soil, as it prevents root rot and ensures that the roots have access to the necessary oxygen. Adequate drainage is crucial for maintaining healthy plant growth. The plant prefers soils with moderate fertility. This balance ensures that it receives enough nutrients to support growth without promoting excessive foliage at the expense of blooms. While Coreopsis tripteris tolerates periodic drought, it performs best in consistently moist but not water-logged conditions. This enhances its vibrant flowering and overall vigor.

How to Fertilize Tall tickseed?

Fertilizer type: Balanced

Coreopsis tripteris thrives in nutrient-rich environments but doesn't demand excessive fertilization. Use a balanced fertilizer, either liquid or granular, ensuring a concentration of no more than 10-10-10 for the season. Approximately 1 tablespoon per square foot should suffice. Over-fertilization can lead to excessive vegetative growth at the expense of blooms.

How to Prune Tall tickseed?

Pruning Time: Spring, Summer

Before you begin, ensure you have a clean, sharp pair of pruning shears. Dull tools can tear the plant, opening it to disease. It's also a good idea to sanitize your tools before and after use to prevent the spread of any plant pathogens. Look for dead or damaged stems and cut them back to the base. For maintenance, identify stems that are overly tall or that have already bloomed. These can be cut back by about a third of their height to encourage new growth. When trimming, make cuts at a 45-degree angle just above a set of leaves or a bud. This ensures water runs off and doesn't pool on the cut, which helps prevent rot. Be gentle with your cuts to avoid splitting the stem. More About Pruning Techniques→

How to Propagate Tall tickseed plant?

Propagate Time: Spring, Early summer

Before sowing, prepare the seeds by soaking them in water overnight. This helps to soften the seed coat, promoting faster germination when planted in seed trays filled with nutrient-rich soil.

Select non-flowering stems for cuttings, as they focus energy on root formation. Cut a 4-6 inch section, ensuring it has several leaf nodes. Remove any lower leaves, retaining only a few at the top.

For division propagation, carefully dig up the plant, ensuring minimal root disturbance. Use a clean knife or spade to divide the root ball into sections, each with a healthy portion of stems and roots.

More About Propagating Techniques→

How to Repot Tall tickseed plant?

Repotting frequency: Every 2-3 years

Coreopsis tripteris, also known as Tall Tickseed, signals its need for repotting when roots begin to emerge from the drainage holes, or when growth appears stunted despite optimal care. It's best to address repotting needs during its active growing seasons, spring or early summer. Choosing these seasons ensures the plant can quickly recover and continue to thrive.

Select a pot that is one or two sizes larger than the current container. The ideal pot should have ample drainage holes to prevent waterlogged soil, which could lead to root rot. A slightly larger pot provides enough space for root growth while minimizing the risk of excessive soil moisture.

Opt for a well-draining garden soil mix. A mixture containing a good blend of sand, perlite, and organic materials like compost will provide essential nutrients while ensuring excellent drainage, mimicking the Coreopsis tripteris's native prairie conditions.