Strawflower (everlasting flower) care

Light

Strawflower needs sun on the leaves, not just bright ambient room light. Full sun (6–8 hours daily) is essential. Strawflower closes its blooms in low light and becomes tall and floppy in partial shade. It originates from open, sunny Australian grasslands and thrives in the hottest, brightest spots in the garden. 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 strawflower every 7–10 days; very drought-tolerant. 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. Water until established, then water only when soil is dry several centimetres deep. Helichrysum bracteatum is very drought-tolerant and is damaged by overwatering or poorly drained soil. Water at the base; wet foliage can promote botrytis.

Soil and pot

Strawflower grows best in well-drained, lean sandy or loamy soil. Thrives in poor, dry, well-drained soil — much as it grows in its native Australian habitat. Rich soils produce rank vegetative growth and fewer flowers. Excellent drainage is paramount; pH 6.0–7.5. 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

Strawflower sits happiest at around 20–50% humidity and 15–35°C (59–95°F). Adapted to low humidity and dry conditions. High humidity combined with poor air circulation can lead to botrytis on the papery bracts. Site in an open, airy position. Avoid overhead irrigation. If you keep the room above 15–35°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 strawflower sparingly. Little to no fertiliser is needed or desirable. Excessive fertility reduces flowering and causes floppy stems. In very poor sandy soils, a single low-nitrogen feed at planting is the maximum required. 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 strawflower in the Growli community. Each is annotated with the most common cause so you know where to start.

• Botrytis (grey mould) on bracts — Papery bracts trap moisture and are prone to botrytis in wet or humid conditions. Pick blooms for drying before they are fully open; improve air circulation and avoid overhead watering.
• Legginess and stem collapse — Tall plants in exposed sites may topple. Support with twiggy sticks or grow through short pea netting; pinching young plants at 15 cm encourages a bushier, more self-supporting habit.
• Aphids on shoot tips — Aphids cluster on tender new growth, especially in spring. Remove by hand or with a jet of water; apply insecticidal soap if infestations are heavy. Avoid broad-spectrum insecticides that harm beneficial insects.

Propagation

Sow seed on the surface of moist compost (requires light to germinate) indoors at 18–21°C, 6–8 weeks before last frost; germination in 7–14 days. Do not cover seed. Transplant after frost risk passes, spacing 30 cm apart. Can be direct-sown outdoors in warm, frost-free conditions. Cut for drying just as outer bracts open fully. 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

Strawflower is mildly toxic to pets. Helichrysum bracteatum is not explicitly listed as toxic or non-toxic by ASPCA. Some Helichrysum species contain pyrrolizidine alkaloids which are hepatotoxic when ingested in quantity. Out of caution, treat as mildly toxic and prevent pets and children from ingesting plant material. 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.

Strawflower deep-dive guides

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

• Common strawflower problems & fixes
• Strawflower watering schedule
• Strawflower light requirements
• Best soil mix for strawflower
• Strawflower fertilizing guide
• When to repot strawflower
• How to propagate strawflower
• How to prune strawflower
• What's eating my strawflower?
• Strawflower growth rate & size
• Strawflower cold hardiness
• Strawflower temperature & humidity
• Is strawflower toxic to cats & dogs?
• Is strawflower toxic to cats?
• Is strawflower toxic to dogs?
• Getting strawflower to bloom

Featured in these plant shortlists

Strawflower qualifies for 3 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

• 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 houseplants for full sun — Houseplants that want direct sun — the species for a hot south or west-facing windowsill where shade-lovers scorch.
• Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Strawflower is also known as Strawflower, everlasting flower, and paper daisy.

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