Plant care
White laceflower (White lace flower) care
Orlaya grandiflora
Also called White laceflower, White lace flower, Orlaya.
Watering rhythm
5-7days
Every 5–7 days; allow the top 2 cm of soil to dry between waterings
Light
Direct sun (at least 4-6 hours)
Soil
Well-drained, low to moderately fertile loam, sandy loam, or chalk; pH 6.0–8.0
Humidity
35–60%
Temp
5–22°C
Pet safety
Pet-safe
Mature size
45–75 cm tall
Care at a glance
Light
White laceflower needs sun on the leaves, not just bright ambient room light. Requires full sun for the best flowering and strongest stems. Tolerates very light partial shade but flower production is reduced. In hot, dry climates a site with morning sun and afternoon shade can extend the season. A south or west-facing windowsill in the northern hemisphere is the default; anywhere else, expect the plant to stretch and pale out within a season.
Watering
Water white laceflower every 5–7 days; allow the top 2 cm of soil to 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. Once established, white laceflower is moderately drought-tolerant, reflecting its Mediterranean origin. Overwatering is more damaging than underwatering. Avoid waterlogged soil at all times. Seedlings need consistent moisture to establish.
Soil and pot
White laceflower grows best in well-drained, low to moderately fertile loam, sandy loam, or chalk; ph 6.0–8.0. Performs best in poor to moderately fertile, very free-draining soil. Rich, fertile soil promotes excess leafy growth at the expense of flowers and can cause lodging. Tolerates chalky and sandy soils well. Good drainage is non-negotiable. 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
White laceflower sits happiest at around 35–60% humidity and 5–22°C (41–72°F). Suited to the moderate humidity of temperate and Mediterranean climates. High humidity combined with poor drainage encourages root rot. No misting or supplemental humidity required. If you keep the room above 5–22°C 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 white laceflower sparingly. Generally requires no feeding in moderately fertile soil. A single application of low-nitrogen, balanced granular fertiliser at planting is sufficient. Avoid nitrogen-rich feeds, which reduce flowering and increase susceptibility to lodging. 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 white laceflower in the Growli community. Each is annotated with the most common cause so you know where to start.
- Root rot in wet conditions — The taproot is highly susceptible to fungal rot if soil is waterlogged or poorly drained. Site in raised beds or very free-draining ground. Do not water again until the surface soil has dried.
- Poor germination when sown in spring — Seeds have complex dormancy and germinate best after a cold, moist period (natural stratification). Autumn sowing in situ or refrigerated stratification for 4–6 weeks before spring sowing dramatically improves germination rates.
- Powdery mildew — Can appear on foliage in warm, humid periods. Ensure adequate plant spacing (25–30 cm) and good airflow. A preventative spray of dilute potassium bicarbonate is effective at early stages.
Propagation
Direct sow in autumn (September–October) in situ in zones 5–8 for the best results — overwintered seedlings produce stronger plants. Alternatively, sow in early spring at 10–15°C (cold stratification for 4–6 weeks improves spring-sown germination). Press seeds into the soil surface; seeds need light and cool temperatures to break dormancy. Self-sows freely in established gardens. 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
White laceflower is pet-safe. Orlaya grandiflora is not listed by ASPCA and no toxic principles have been identified for the genus or the Apiaceae family at this scale. It is not individually classified as toxic by major veterinary poison control sources. As with all Apiaceae, verify with a vet if significant ingestion occurs. 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.
White laceflower care — frequently asked questions
What is the common name for Orlaya grandiflora?
Orlaya grandiflora is most commonly called White laceflower, but it is also known as White laceflower, White lace flower, Orlaya. The names refer to the same species, so care instructions for White laceflower apply identically to anything sold as White lace flower.
How much light does white laceflower need?
White laceflower grows best in direct sun (at least 4-6 hours). Requires full sun for the best flowering and strongest stems. Tolerates very light partial shade but flower production is reduced. In hot, dry climates a site with morning sun and afternoon shade can extend the season.
How often should I water white laceflower?
Water white laceflower every 5–7 days; allow the top 2 cm of soil to dry between waterings. Once established, white laceflower is moderately drought-tolerant, reflecting its Mediterranean origin. Overwatering is more damaging than underwatering. Avoid waterlogged soil at all times. Seedlings need consistent moisture to establish. 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 white laceflower toxic to cats and dogs?
White laceflower is pet-safe. Orlaya grandiflora is not listed by ASPCA and no toxic principles have been identified for the genus or the Apiaceae family at this scale. It is not individually classified as toxic by major veterinary poison control sources. As with all Apiaceae, verify with a vet if significant ingestion occurs.
What USDA hardiness zone does white laceflower grow in?
White laceflower is rated for USDA zone 5-9 and RHS hardiness H5. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.
White laceflower deep-dive guides
Every aspect of white laceflower care, each with its own calibrated guide:
- Common white laceflower problems & fixes
- White laceflower watering schedule
- White laceflower light requirements
- Best soil mix for white laceflower
- White laceflower fertilizing guide
- When to repot white laceflower
- How to propagate white laceflower
- How to prune white laceflower
- What's eating my white laceflower?
- White laceflower growth rate & size
- White laceflower cold hardiness
- White laceflower temperature & humidity
- Is white laceflower toxic to cats & dogs?
- Is white laceflower toxic to cats?
- Is white laceflower toxic to dogs?
- Getting white laceflower to bloom
Featured in these plant shortlists
White laceflower qualifies for 10 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:
- Best pet-safe houseplants — Houseplants the ASPCA lists as non-toxic to cats and dogs — every one verified against the ASPCA toxic and non-toxic plant list.
- Best drought-tolerant houseplants — Houseplants that prefer to dry out — forgiving of forgotten watering and ideal for travel or busy weeks.
- Best flowering houseplants — Indoor plants grown for their blooms — selected from the flowering species in Growli’s plant-care library.
- Best pet-safe low-maintenance plants — Non-toxic to cats and dogs and forgiving of forgotten watering — the easiest safe choices for a busy pet household.
- Best pet-safe flowering plants — Flowering houseplants the ASPCA lists as non-toxic to cats and dogs — colour and blooms in a pet home, without the worry.
- Best pet-safe plants for bright light — Non-toxic to cats and dogs and happy in a bright, sunny spot — safe plants for your best-lit windowsill.
- Best houseplants for full sun — Houseplants that want direct sun — the species for a hot south or west-facing windowsill where shade-lovers scorch.
- 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.
- Best cat-safe plants — Houseplants the ASPCA lists as non-toxic to cats (and dogs) — safe greenery for a home with a curious cat.
- Best dog-safe plants — Houseplants the ASPCA lists as non-toxic to dogs (and cats) — safe greenery for a home with a curious dog.
- Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more
Related guides
White laceflower is also known as White laceflower, White lace flower, and Orlaya.