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Plant care

Hare's Tail Grass (Bunny Tail Grass) care

Lagurus ovatus

Also called Bunny Tail Grass, Hare's Tail, Rabbit Tail Grass.

RHS H3USDA 7-11Pet-safeIndoor 30-50 cm tall including seed heads

Watering rhythm

7-14days

When the top 3-4 cm of soil is dry, roughly every 7-14 days

Light

Direct sun (at least 4-6 hours)

Soil

Light, free-draining sandy or loamy mix

Humidity

30-55%

Temp

8-28°C

Pet safety

Pet-safe

Mature size

30-50 cm tall including seed heads

Care at a glance

Light

Most houseplants will scorch where hare's tail grass thrives. Give it the windowsill you'd otherwise leave empty because everything else burned there. Requires a position in full sun for compact, upright growth and the fullest, most attractive seed heads. In partial shade growth becomes lax and the characteristic fluffy heads are less well formed. A plant moved abruptly from low light to direct sun bleaches in 48 hours — always acclimatise over a week.

Watering

Aim for when the top 3-4 cm of soil is dry, roughly every 7-14 days for hare's tail grass, but treat that as a starting point rather than a rule. A south-facing summer windowsill will dry the pot twice as fast as a north-facing winter room. Lift the pot; if it feels noticeably lighter than it did wet, water it. Drought-tolerant once established and reflective of its Mediterranean coastal habitat. Overwatering is more damaging than underwatering; allow the soil to partially dry between waterings.

Soil and pot

Hare's Tail Grass grows best in light, free-draining sandy or loamy mix. Grows best in sandy, infertile, well-drained soil. Rich or heavy clay soils lead to lush foliage but poor flower and seed head development. Adding horticultural grit to a standard potting mix improves drainage. 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

Hare's Tail Grass sits happiest at around 30-55% humidity and 8-28°C (46-82°F). Suited to low to moderate humidity consistent with its Mediterranean origins. High humidity combined with poor air circulation can encourage fungal issues. Ensure good ventilation around the plants. If you keep the room above 8 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 hare's tail grass sparingly. Avoid rich fertiliser — on fertile soil the grass produces excessive leafy growth at the expense of the decorative seed heads. A single light application of slow-release granular fertiliser in 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 hare's tail grass in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Lax, floppy growthRich soil or low light produces tall, weak stems. Grow in lean, well-drained soil in full sun.
  • Poor seed head formationExcess nitrogen or shade reduces the quality of the fluffy heads. Avoid fertilising and ensure full sun.
  • Rust diseaseOrange rust pustules can appear in humid conditions. Improve air circulation and remove affected stems promptly.
  • OverwateringRoot rot sets in quickly in wet, heavy soils. Ensure the container or bed is free-draining and reduce watering in cool weather.
  • Short lifespanLagurus ovatus is an annual or short-lived perennial and declines after flowering. Collect and sow seed annually to maintain the display.

Companion plants

Hare's Tail Grass pairs well with Nigella, Echinacea, Lavender, and Helichrysum. These are species with similar light and water needs, so you can group them in the same room or on the same shelf and water as a batch.

Propagation

Sow seed directly in situ in spring (after last frost) or in autumn where winters are mild. Lightly cover with compost and thin seedlings to 15-20 cm apart. It self-seeds readily in free-draining garden beds. 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

Hare's Tail Grass is pet-safe. Lagurus ovatus is not listed by the ASPCA as toxic to dogs or cats. Hare's Tail Grass is broadly regarded as non-toxic and is a safe choice in pet-friendly outdoor and indoor spaces. 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.

Hare's Tail Grass care — frequently asked questions

What is the common name for Lagurus ovatus?

Lagurus ovatus is most commonly called Hare's Tail Grass, but it is also known as Bunny Tail Grass, Hare's Tail, Rabbit Tail Grass. The names refer to the same species, so care instructions for Hare's Tail Grass apply identically to anything sold as Bunny Tail Grass.

How much light does hare's tail grass need?

Hare's Tail Grass grows best in direct sun (at least 4-6 hours). Requires a position in full sun for compact, upright growth and the fullest, most attractive seed heads. In partial shade growth becomes lax and the characteristic fluffy heads are less well formed.

How often should I water hare's tail grass?

Water hare's tail grass when the top 3-4 cm of soil is dry, roughly every 7-14 days. Drought-tolerant once established and reflective of its Mediterranean coastal habitat. Overwatering is more damaging than underwatering; allow the soil to partially dry between waterings. 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 hare's tail grass toxic to cats and dogs?

Hare's Tail Grass is pet-safe. Lagurus ovatus is not listed by the ASPCA as toxic to dogs or cats. Hare's Tail Grass is broadly regarded as non-toxic and is a safe choice in pet-friendly outdoor and indoor spaces.

What USDA hardiness zone does hare's tail grass grow in?

Hare's Tail Grass is rated for USDA zone 7-11 (grown as an annual in cooler climates) and RHS hardiness H3. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Hare's Tail Grass deep-dive guides

Every aspect of hare's tail grass care, each with its own calibrated guide:

Featured in these plant shortlists

Hare's Tail Grass qualifies for 10 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

Related guides

Hare's Tail Grass is also known as Bunny Tail Grass, Hare's Tail, and Rabbit Tail Grass.