Nerium Oleander

8 seeds

How to Seed Nerium oleander (Oleander)

1. Best Time to Sow (Gulf Region):

   • Sow seeds from February to April or September to November, when temperatures range between 20–30°C (68–86°F).

   • Avoid sowing during the hottest months (May–August), as excessive heat and dryness can affect germination.

   • In cooler coastal areas, late autumn sowing can also be successful.

2. Seed Preparation:

   • Oleander seeds are light and feathery, designed for wind dispersal.

   • Soak seeds in lukewarm water for 12–24 hours before sowing to soften the outer coating and enhance germination.

   • Handle seeds carefully — they are delicate.

3. Sowing Depth:

   • Sow seeds on the surface of moist soil and press gently to ensure contact — do not bury deeply.

   • Lightly cover with a thin layer of fine sand or vermiculite (no more than 0.5 cm).

   • Mist gently with water to moisten.

4. Soil Requirements:

   • Prefers well-draining, sandy-loamy soil.

   • Ideal Gulf mix: 40% sandy soil + 30% garden soil + 20% compost + 10% perlite.

   • Avoid heavy soils that retain water — oleander roots prefer aeration and dryness between waterings.

5. Light & Temperature:

   • Germination temperature: 22–28°C (72–82°F).

   • Requires bright light or full sun for proper germination.

   • In Gulf climates, provide morning sun and filtered afternoon light for seedlings.

6. Germination Time:

   • Seeds germinate within 10–20 days under warm, slightly humid conditions.

   • Keep the growing medium lightly moist but never waterlogged during this period.

7. Transplanting & Spacing:

   • When seedlings are 5–10 cm tall, transplant them into larger pots or directly into the ground.

   • Space plants 1–1.5 meters apart for landscape planting.

   • Choose a sunny, well-ventilated area for best growth.

8. Growing Tips for Gulf Climate:

   • Sunlight: Oleander thrives in full sun, requiring at least 6–8 hours of direct sunlight daily.

   • Watering: Water regularly during the seedling stage; once established, oleander becomes highly drought-tolerant.

   • Fertilizing: Use a balanced fertilizer (NPK 10-10-10) every 4–6 weeks during the growing season.

   • Pruning: Trim lightly after flowering to encourage branching and maintain shape.

   • Heat tolerance: Mature oleanders handle Gulf heat extremely well and bloom profusely from spring through late autumn.

   • Caution: All parts of the plant are toxic if ingested, so handle carefully and keep away from pets and children.