Chalky Hill Speedwell Plant Care

Veronica hulkeana F.Muell. ex Hook.f.

Updated · Sources · How we source care data

Veronica hulkeana, synonym Hebe hulkeana, the New Zealand lilac, is a species of plant in the Plantaginaceae. Its pale mauve flowers are on long sprays, which develop from the tips of the branches.

🌱Herbs🌼Perennials
Water

Every 7–10 days

Light

Full sun to partial shade

Temp

50–75°F

Humidity

40–60%

At a glance

How do you care for Chalky Hill Speedwell?

Plant Chalky Hill Speedwell in full sun to partial shade (USDA zones 12a) and water a young shrub every 7–10 days until it is established. It tolerates temperatures of 50–75°F (10–24°C). Fertilize it every 6 months during the growing season.

What Is the Chalky Hill Speedwell?

Chalky Hill Speedwell (Veronica hulkeana) belongs to the Plantaginaceae family within the Veronica genus. Chalky Hill Speedwell is also known as Australian Speedwell.

Chalky Hill Speedwell displays a low rosette, spreading growth habit, reaching up to 0.5 ft tall with a spread of approximately 1 ft. Chalky Hill Speedwell produces small, tubular flowers in shades of blue, pink, or white.

Leaf size: approximately 3 inches.

How Often Should You Water a Chalky Hill Speedwell?

Water a young or newly planted Chalky Hill Speedwell every 7–10 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established shrubs mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.

Watering Frequency

Every 7–10 days

Until established; then in dry spells

What Light Does the Chalky Hill Speedwell Need?

Chalky Hill Speedwell thrives in full sun to partial shade.

Light Requirement

Full sun to partial shade

What Temperature and Humidity Does the Chalky Hill Speedwell Prefer?

Veronica hulkeana tolerates temperatures of 50–75°F. Chalky Hill Speedwell prefers humidity levels of 40–60%.

Temperature

50–75°F

Humidity

40–60%

What Soil Mix Works Best for a Chalky Hill Speedwell?

Well-draining loamy soil with added compost for nutrients. Good drainage is essential for Chalky Hill Speedwell to prevent waterlogging, which leads to root rot and fungal issues.

How Often Should You Fertilize a Chalky Hill Speedwell?

Feed Chalky Hill Speedwell every 6 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established shrubs in good soil often need little extra feeding, so let weak growth or pale foliage guide you.

Stop feeding by late summer so new growth can harden before winter.

Fertilizing

Every 6 months

During the growing season

The PlantoScan app can remind you when to water and when to fertilize each plant.

Where Should You Plant a Chalky Hill Speedwell?

Choose a spot with full sun to partial shade and well-draining loamy soil with added compost for nutrients. Avoid low spots where water collects after rain.

Chalky Hill Speedwell is suited to USDA Zone 12a.

Plant container-grown or balled-and-burlapped shrubs in spring or early autumn, setting the root flare at soil level, and water well after planting.

How Far Apart Should You Plant a Chalky Hill Speedwell?

Chalky Hill Speedwell can spread to about 1 ft (0.3 m) and reach about 1 ft (0 m) tall. Space plants about 1 ft (0.3 m) apart so mature crowns don't crowd each other, and plant at least half that distance from buildings, fences and paths.

Planning a row or hedge? Try the plant spacing calculator.

How Do You Prune a Chalky Hill Speedwell?

Prune Chalky Hill Speedwell while it is dormant in late winter: first remove dead, damaged and crossing branches, then thin lightly for shape.

If it flowers in spring, prune right after flowering instead so you don't remove next year's buds. Never take off more than about a quarter of the shrub in one year.

How Do You Care for a Chalky Hill Speedwell in Winter?

Chalky Hill Speedwell is frost-tender (hardy to USDA zone 12). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.

How Do You Propagate a Chalky Hill Speedwell?

Chalky Hill Speedwell can be propagated through seeds, division of clumps. Similar propagation techniques also apply to field speedwell plant care, which shares the same genus.

Is the Chalky Hill Speedwell Toxic to Pets and Children?

Pet safety not verified

The ASPCA does not list Chalky Hill Speedwell, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.

This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.

See all plants toxic to cats and plants toxic to dogs.

What Pests and Diseases Affect the Chalky Hill Speedwell?

Chalky Hill Speedwell is susceptible to aphids, slugs, snails. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.

Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.

What USDA Hardiness Zone Does the Chalky Hill Speedwell Need?

Chalky Hill Speedwell grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. In cooler regions, grow Chalky Hill Speedwell as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 12a

Keep exploring plants

Chalky Hill Speedwell is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.

It belongs to the Veronica genus — compare its care with other Veronica species on PlantoScan.

Veronica is part of the Plantaginaceae plant family — browse all Plantaginaceae genera and species.

Chalky Hill Speedwell thrives in bright light and direct sun — see other bright-light plants.

More Veronica Species

Other Veronica species in PlantoScan's care catalogue share similar watering, light, and soil preferences:

Sources

  • Scientific name & taxonomy: Veronica hulkeana F.Muell. ex Hook.f., family Plantaginaceae (first published in Handb. N. Zeal. Fl. 1: 213 (1864)) — World Flora Online record, IPNI name record.
  • Pet toxicity: Pet safety not verified: the ASPCA does not list Chalky Hill Speedwell, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
  • Hardiness zone: USDA Zone 12a, calculated from the plant's minimum temperature.
  • Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.

Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.

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