Sky Flower
Duranta erecta · Verbenaceae
📷 Gowrivemban · CC0
The gardener's calendar
Ideal time to plant sky flower: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Foliage
- Evergreen to semi-evergreen depending on climate
- Flowering
- Spring to autumn, violet or blue flowers
- Mature size
- 2 to 3 m tall, spreading shrubby form
- Growth
- Fast in warm climates
- Hardiness
- Tropical to subtropical climate, frost-sensitive
- Origin
- Central and South America (Caribbean region)
- Soil type
- Well-drained, fertile soil, slightly acidic to neutral
Expert tips
The key tip
Arrose régulièrement en saison de croissance (printemps-été) en laissant sécher légèrement entre deux arrosages : le substrat doit rester humide mais pas gorgé. En hiver, réduis drastiquement l'eau, surtout en climat froid, car la plante entre en semi-dormance. La Duranta demande de la lumière généreuse pour bien ramifier et fleurir abondamment.
The common mistake
La majorité des jardiniers noie la Duranta en hiver, confondant ses besoins avec ceux des plantes tropicales exigeantes. Elle tolère bien un repos végétatif avec arrosages très espacés dès novembre, et cette sécheresse relative favorise même une meilleure floraison printanière.
The pro's trick
Pince les jeunes tiges régulièrement (surtout au printemps) pour forcer la ramification : une Duranta non pincée devient filiforme et maigre, avec peu de fleurs. Deux ou trois pincages successifs avant juin te donnent un buisson compact et très fleuri.
Seasonal watch
En fin d'automne et début d'hiver, surveille l'arrivée des araignées rouges si tu cultives en intérieur chauffé : l'air sec des maisons les attire. Un brumage hebdomadaire ou une douche tiède des feuilles en prévention est plus efficace que de traiter une infestation établie.
Care
Watering
Water regularly during the growing season to keep the soil moist but not waterlogged. In winter or dry climates, space out waterings by letting the soil surface dry slightly. Reduce water in the cold season to encourage abundant spring flowering.
Light
Choose a sunny or very bright location for optimal flowering. At least 6 to 8 hours of direct sunlight daily is ideal. In very hot climates, light afternoon shade can prevent leaf scorch.
Pruning
Prune lightly after flowering to maintain a compact, balanced shape. Remove dead or diseased branches as needed. Annual moderate pruning stimulates branching and rejuvenates the shrub.
Fertilizer
Apply a balanced fertilizer monthly during the growing season (spring-autumn). Reduce or stop feeding in winter. A fertilizer slightly rich in potassium promotes better flowering.
Soil
Plant in rich, well-structured, well-drained substrate enriched with organic matter. Avoid waterlogged conditions that can cause root rot. Mulch helps retain moisture and keep the soil cool in warm climates.
Diseases and pests
Watch for scale insects, whiteflies, or spider mites, especially in dry indoor conditions. Powdery mildew can affect foliage in warm, humid conditions. Ensure good air circulation and avoid stagnant humidity to prevent problems.
Did you know?
Duranta erecta is prized in tropical America for its remarkable golden fruits that persist long after the flowers fall, adding extra ornamental value. Its nickname 'Cayenne Vanillia Tree' in French refers to its slender form and historical popularity in the gardens of colonial Caribbean estates, where it symbolized horticultural refinement.
Where to buy it
Best planted in autumn so the roots settle in before summer, or in early spring once the frost has passed. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, October, November.
Add this plant to my garden →Plants from the same family
- VervainVerbena officinalis
- Verveine NodiflorePhyla nodiflora
- Purple verbenaVerbena bonariensis
- Lemon verbenaAloysia citrodora
- Aztec sweet herbLippia dulcis
- Aloysia polystachyaAloysia polystachya
Tips generated and checked by Viridia — adapt them to your local climate.