Plant care
Kitten Tails (Kittentails) care
Besseya bullii
Also called Kitten tails, Kittentails, Bull's besseya.
Watering rhythm
Medium indirect light (a couple of metres from a window)
Infrequently; dry to medium-dry
Light
Medium indirect light (a couple of metres from a window)
Soil
Sandy or gravelly, dry, infertile, well-drained
Humidity
Low to moderate (30–55 % RH)
Temp
-40 to 30 °C
Pet safety
Mildly toxic to pets
Mature size
20–40 cm (8–16 in) tall in flower
Care at a glance
Light
The Goldilocks zone. Not the south-facing windowsill (too hot, too direct), not the back of the room (too dim, growth stalls). Thrives in dappled sunlight or on north-facing slopes and open woodland edges; can also tolerate full sun in sandy soils that stay cool. Avoid deep shade, which prevents flowering. If you can't decide, a free phone lux-meter app aimed at the leaf at noon should read between 800 and 1,500 lux.
Watering
Watering kitten tails: infrequently; dry to medium-dry. The number that matters isn't the day of the week — it's how dry the top 2-3 cm of the pot feels. A finger in the soil tells you more than a watering app. After every watering, tip the saucer. Naturally found on dry, sandy, or gravelly prairie and savanna soils; water sparingly after establishment. Moist or poorly drained soils are unsuitable and promote crown rot.
Soil and pot
Kitten Tails grows best in sandy or gravelly, dry, infertile, well-drained. Native to lean, acidic to neutral sandy substrates — rich garden soils encourage weedy competition that quickly overtops this small plant. Replicate prairie grit conditions for best results. 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
Kitten Tails sits happiest at around Low to moderate (30–55 % RH) humidity and -40 to 30 °C (-40 to 86 °F). Adapted to the variable humidity of the Upper Midwest; good air circulation around the basal rosette is important to prevent fungal leaf spot in wet seasons. 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 kitten tails sparingly. Do not fertilise — additional nutrients favour competing weeds and grasses that suppress this small, slow-growing wildflower. 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 kitten tails in the Growli community. Each is annotated with the most common cause so you know where to start.
- Competition from invasive grasses and weeds — This small plant is easily crowded out by aggressive grasses, non-native annuals, or shrubs. Regular spot weeding around the rosette and — in managed natural areas — periodic prescribed burning in early spring are essential to maintain open habitat.
- Failure to establish without habitat management — Besseya bullii declines when fire is suppressed and woody vegetation closes in on prairie openings. In garden settings, hand removal of encroaching vegetation each spring mimics the natural disturbance regime this plant depends on.
Propagation
Seed — stratify moist at 4 °C (39 °F) for 60–90 days before spring sowing, or sow outdoors in autumn to allow natural cold stratification. Seed-grown plants may take 2–3 years to reach flowering size. Division is not recommended due to the plant's small size and conservation status. 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
Kitten Tails is mildly toxic to pets. Besseya bullii (Plantaginaceae) is not listed in the ASPCA Toxic and Non-Toxic Plant database, and its phytochemical profile has not been widely studied. Members of this family can contain iridoid glycosides. Given the lack of confirmed safety data, it is classified as mildly toxic as a precaution. Contact a vet if a pet ingests this plant. 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.
Kitten Tails care — frequently asked questions
What is the common name for Besseya bullii?
Besseya bullii is most commonly called Kitten Tails, but it is also known as Kitten tails, Kittentails, Bull's besseya. The names refer to the same species, so care instructions for Kitten Tails apply identically to anything sold as Kittentails.
How much light does kitten tails need?
Kitten Tails grows best in medium indirect light (a couple of metres from a window). Thrives in dappled sunlight or on north-facing slopes and open woodland edges; can also tolerate full sun in sandy soils that stay cool. Avoid deep shade, which prevents flowering.
How often should I water kitten tails?
Water kitten tails infrequently; dry to medium-dry. Naturally found on dry, sandy, or gravelly prairie and savanna soils; water sparingly after establishment. Moist or poorly drained soils are unsuitable and promote crown rot. 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 kitten tails toxic to cats and dogs?
Kitten Tails is mildly toxic to pets. Besseya bullii (Plantaginaceae) is not listed in the ASPCA Toxic and Non-Toxic Plant database, and its phytochemical profile has not been widely studied. Members of this family can contain iridoid glycosides. Given the lack of confirmed safety data, it is classified as mildly toxic as a precaution. Contact a vet if a pet ingests this plant.
What USDA hardiness zone does kitten tails grow in?
Kitten Tails is rated for USDA zone 3-5 and RHS hardiness H7. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.
Kitten Tails deep-dive guides
Every aspect of kitten tails care, each with its own calibrated guide:
- Common kitten tails problems & fixes
- Kitten Tails watering schedule
- Kitten Tails light requirements
- Best soil mix for kitten tails
- Kitten Tails fertilizing guide
- When to repot kitten tails
- How to propagate kitten tails
- How to prune kitten tails
- What's eating my kitten tails?
- Kitten Tails growth rate & size
- Kitten Tails cold hardiness
- Kitten Tails temperature & humidity
- Is kitten tails toxic to cats & dogs?
- Is kitten tails toxic to cats?
- Is kitten tails toxic to dogs?
- Getting kitten tails to bloom
Featured in these plant shortlists
Kitten Tails qualifies for 7 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:
- Best low-light houseplants — Houseplants that need no direct sun and cope with a north-facing room or a spot well back from a window.
- Best plants for a north-facing window — Houseplants for a north-facing window: bright, even, indirect light and no scorching direct sun. Each pick verified against its documented light needs.
- Best drought-tolerant houseplants — Houseplants that prefer to dry out — forgiving of forgotten watering and ideal for travel or busy weeks.
- Best houseplants for beginners — Forgiving of irregular light and watering — the houseplants least likely to die in a new plant parent’s first season.
- Best flowering houseplants — Indoor plants grown for their blooms — selected from the flowering species in Growli’s plant-care library.
- Best small & tabletop houseplants — Compact houseplants that stay under about 40 cm — desk, shelf and windowsill plants that never outgrow a small space.
- Best houseplants for a cool room — Houseplants that tolerate cool conditions down to about 10°C — for an unheated spare room, hallway, porch or a home kept cool.
- Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more
Related guides
Kitten Tails is also known as Kitten tails, Kittentails, and Bull's besseya.