metel devil's trumpet Care (Datura metel)

This sun-loving shrub needs strong light to flower well and stay compact.

• Provide 6–8 hours of direct sun daily; morning and midday sun are ideal, with light afternoon shade in very hot climates.
• Metel devil's trumpet tolerates light partial shade (3–4 hours sun), but flowering and branching decrease as shade increases.
• In summer, monitor for leaf scorch or wilt in harsh afternoon sun; in cooler months, avoid deep shade so the plant receives as much direct light as possible.

This species prefers evenly moist, well-drained soil and reacts quickly to extremes.

• Outdoors in the ground, water when the top 3–5 cm of soil feels dry; in hot weather this may mean checks every 1–2 days, but only water when dryness is confirmed.
• Aim for soil that stays slightly moist but never soggy; yellowing, soft leaves and a sour smell indicate overwatering and poor drainage.
• Dry, drooping foliage, especially in afternoon heat that does not recover by evening, signals underwatering; increase depth of watering rather than frequency and improve organic matter in the soil.

This warm-season ornamental grows best in stable, frost-free conditions.

• Optimal growth occurs around 70–85°F (21–29°C); flowering and leaf production slow noticeably below about 65°F (18°C).
• The plant is highly frost sensitive; tissue damage occurs near 32°F (0°C), and stems may die back completely if exposed to repeated cold nights.
• It tolerates heat up to 95°F (35°C) if soil moisture is consistent; during heat waves, reduce transplanting or pruning stress and provide light afternoon shade where possible.

This species handles a wide range of humidity and rarely needs special humidity management outdoors.

• Aim for 30–60% humidity; metel devil's trumpet tolerates typical indoor and outdoor air in most homes and gardens.
• Dry indoor air rarely harms it, but combined heat and drought can cause leaf edge browning and slight curl.
• If leaves crisp at the margins, group plants, move away from strong hot drafts, or lightly mist foliage in the morning.

Datura metel prefers loose, well-aerated, sharply drained soil to support fast growth and reduce rot risk.

• Use a sandy or loamy mix with plenty of air spaces; combine 40% all-purpose potting mix, 30% coarse sand, and 30% compost or well-rotted manure.
• Ensure rapid drainage; add perlite or pumice if water lingers more than a few minutes on the surface after watering.
• Target slightly acidic to neutral pH around 6.0–7.0; avoid highly acidic or alkaline sites that reduce nutrient availability.
• Do not plant in heavy, compacted clay or constantly wet spots, as this greatly increases the risk of root and stem rot.

This species is well suited to large containers, especially in cooler climates or where in-ground space is limited.

• Choose a wide, heavy pot to counteract the top-heavy canopy and prevent tipping in wind.
• Select a container material that slightly dries between waterings, such as unglazed clay, to reduce prolonged root wetness.
• Use a deep container that allows a strong taproot and lateral roots to develop without circling tightly.

Datura metel responds well to moderate feeding during its active growing season.

• Use a balanced liquid fertilizer (such as 10-10-10) at 1/2 strength every 2–3 weeks from late spring to early fall.
• Alternatively, apply a slow-release granular fertilizer once in spring, following label rates.
• Supplement with a thin layer of compost over the root zone to improve soil structure.
• Suspend feeding or reduce to 1/4 strength once a month in winter or dormancy.

Pruning supports compact growth and sustained flowering in Datura metel.

• Carry out main pruning in late winter or early spring before new growth starts.
• Remove dead, damaged, crossing, or inward-growing stems with clean, sharp pruners.
• Shorten overly long shoots to maintain a bushy, balanced shape and encourage more blooms.
• Lightly deadhead spent flowers during the season to reduce seed formation and extend flowering.

Container-grown Datura metel benefits from occasional repotting or careful outdoor transplanting.

• Check for roots circling the pot, pushing through drainage holes, or unexplained slow growth as signs to repot, usually every 1–2 years.
• Plan repotting or garden transplanting in spring after frost risk has passed.
• Move to a container 2–5 cm wider, disturbing roots as little as possible and setting the crown at the same depth.
• Water thoroughly after moving, keep in bright shade for a few days, and avoid heavy fertilizing until new growth resumes.

New Datura metel plants are most often raised from seed, with cuttings also possible.

• Sow fresh seeds in late winter or spring in a sterile seed mix kept at 70–80°F and consistently moist.
• Lightly cover seeds, provide bright indirect light, and maintain good air circulation to limit damping-off disease.
• Take 10–15 cm softwood cuttings in late spring or early summer and remove lower leaves.
• Place cuttings in moist, well-draining medium, optionally with rooting hormone, and maintain high humidity until rooted.

In cool climates, metel devil's trumpet behaves as a tender perennial that needs protection from freezing conditions.

• It is frost sensitive and usually damaged below about 32°F, especially in containers.
• In mild zones, mulch the root zone with 5–8 cm of organic material to buffer soil temperature.
• Move potted plants indoors to a bright, cool room before first frost, reducing watering but not letting soil fully dry.