Angraecum didieri

Angraecum didieri is a miniature to small-sized epiphytic orchid, native to the humid evergreen forests of eastern to southeastern Madagascar, where it typically grows at elevations of 600–1500 m.

Features:

• A miniature to small-sized epiphyte with a short stem, bearing 5 to 7 leathery, unequally bilobed (often described as "fanged") leaves.

• Produces a single star-shaped, pure white flower (approx. 2–5 cm across) with a long nectar spur; the flower often emerges between the leaves on a short inflorescence with 2–3 bracts.

• Fragrance: Notably spicy, citrusy, or orange-like and most potent at dusk or throughout the night—attractive to nocturnal moth pollinators.

• In the Northern Hemisphere, it typically flowers between April and June (sometimes into July).

Care Tips:

Light

• Prefers bright, indirect light such as morning or evening sun. Avoid harsh midday exposure.

Temperature

• Comfortable in intermediate to warm conditions. Ideal daytime range: 21–35 °C (70–95 °F); nighttime: 16–21 °C (60–70 °F). A nighttime drop of at least 5 °C supports healthy growth.

Humidity & Airflow

• Thrives in humidity between 65–80% (minimum ~50%). Strong air circulation helps keep roots healthy and prevent fungal issues.

Watering & Growing Medium

• If potted, water thoroughly but allow the medium to dry between waterings; mounted plants may need daily moistening.

• Excellent in coarse bark mixes or mounted on cork/tree fern with moss to retain moisture—but avoid root disturbance as the plant can sulk or delay blooming when repotted too often.

Fertilizer

• Use a balanced orchid fertilizer during new growth (e.g., spring–summer), ideally at half strength every week or biweekly. Periodically flush media to avoid salt buildup.

Rest & Dormancy

• No pronounced winter rest is necessary, but a slight seasonal reduction in light and watering appears to enhance spring blooming.