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Plant care

Heath Speedwell (Common Speedwell) care

Veronica officinalis

Also called Heath Speedwell, Common Speedwell, Gypsy Weed, Fluellen.

RHS H7USDA 3-8Pet-safeIndoor 5–15 cm tall

Watering rhythm

Bright indirect light (just back from a sunny window)

Low to moderate — allow soil to partially dry between waterings

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Light

Bright indirect light (just back from a sunny window)

Soil

Acidic to neutral, well-drained, low-fertility

Humidity

Low to moderate

Temp

-35 to 28°C

Pet safety

Pet-safe

Mature size

5–15 cm tall

Care at a glance

Light

Heath Speedwell is what florists mean by "bright spot, no direct sun" — close enough to a south or east window to feel the brightness, with a sheer curtain or a few feet of distance keeping the sun off the leaves. Grows best in full sun to light dappled shade, mimicking its native heathland habitat; dense shade suppresses flowering and leads to sparse, lax growth. A phone lux-meter at the leaf surface should read 1,500-3,000 lux at noon.

Watering

Water heath speedwell low to moderate — allow soil to partially dry between waterings. The actual day count varies with pot size, light, and season — the finger test (or lifting the pot to feel its weight) is more reliable than a fixed calendar. Empty any drainage saucer afterwards so the pot isn't sitting in water. Drought-resistant once established; water during prolonged dry spells in summer but ensure the soil is never waterlogged, as roots rot quickly in wet conditions.

Soil and pot

Heath Speedwell grows best in acidic to neutral, well-drained, low-fertility. Thrives in the lean, slightly acidic soils of heathland and light woodland; rich or alkaline soils produce soft, floppy growth and reduce the plant's natural vigour. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

Heath Speedwell sits happiest at around Low to moderate humidity and -35 to 28°C (-31 to 82°F). Well adapted to the cool, relatively dry air of open heath environments; good air movement around plants helps prevent the fungal leaf spots that can occur in stagnant, humid conditions. If you keep the room above year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed heath speedwell sparingly. Requires little to no fertilising; a light scattering of balanced granular feed in early spring is sufficient if soil is very poor. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on heath speedwell in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Leaf spots (Septoria and Ramularia) — Small brown or pale leaf spots caused by fungal pathogens appear in wet seasons or when plants are overcrowded; improve airflow, remove affected foliage, and avoid overhead watering.
  • Slugs on young spring growth — Slugs and snails graze the soft new foliage and stem tips in spring; use iron phosphate slug pellets or copper barriers around vulnerable young plants.

Propagation

Divide clumps in spring or autumn; take softwood cuttings in early summer. Seed can be sown on the soil surface in autumn as it requires light and cold stratification to germinate. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

Heath Speedwell is pet-safe. Veronica officinalis is not listed on the ASPCA Toxic and Non-Toxic Plant database as a toxic plant. The Veronica genus is widely regarded as non-toxic to cats and dogs by veterinary and horticultural authorities. Excessive ingestion of any plant material may cause mild digestive upset. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

Heath Speedwell care — frequently asked questions

What is the common name for Veronica officinalis?

Veronica officinalis is most commonly called Heath Speedwell, but it is also known as Heath Speedwell, Common Speedwell, Gypsy Weed, Fluellen. The names refer to the same species, so care instructions for Heath Speedwell apply identically to anything sold as Common Speedwell.

How much light does heath speedwell need?

Heath Speedwell grows best in bright indirect light (just back from a sunny window). Grows best in full sun to light dappled shade, mimicking its native heathland habitat; dense shade suppresses flowering and leads to sparse, lax growth.

How often should I water heath speedwell?

Water heath speedwell low to moderate — allow soil to partially dry between waterings. Drought-resistant once established; water during prolonged dry spells in summer but ensure the soil is never waterlogged, as roots rot quickly in wet conditions. The finger-test (or lifting the pot to feel its weight) beats a fixed weekly calendar because pot size, light, and season all change how fast the soil dries.

Is heath speedwell toxic to cats and dogs?

Heath Speedwell is pet-safe. Veronica officinalis is not listed on the ASPCA Toxic and Non-Toxic Plant database as a toxic plant. The Veronica genus is widely regarded as non-toxic to cats and dogs by veterinary and horticultural authorities. Excessive ingestion of any plant material may cause mild digestive upset.

What USDA hardiness zone does heath speedwell grow in?

Heath Speedwell is rated for USDA zone 3-8 and RHS hardiness H7. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Heath Speedwell deep-dive guides

Every aspect of heath speedwell care, each with its own calibrated guide:

Featured in these plant shortlists

Heath Speedwell qualifies for 11 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

Related guides

Heath Speedwell is also known as Heath Speedwell, Common Speedwell, Gypsy Weed, and Fluellen.