Holy Basil (Tulsi)

Ocimum tenuiflorum

Malay names: Selasih India, Tulsi

Env: Both Size: Small
Holy Basil (Tulsi) - Hydroponic Plant

Fragrant sacred basil; heat-loving; great in Kratky/DWC with frequent harvesting.

๐ŸŒž Light & Temperature

Light: Bright light to full sun (4โ€“6 h)

Temperature: 22โ€“36ยฐC

๐Ÿชด Container & Medium

Container: Kratky jars or DWC; 2 inch net pots; per-plant reservoir 2โ€“5 L for Kratky.

Medium / Solution: Medium: clay pebbles/coco plugs; Solution: pH 5.8โ€“6.2, EC 1.0โ€“1.6 mS/cm

๐Ÿ’ง Watering / Solution Maintenance

Schedule: Top-up as needed (DWC); for Kratky, leave 3โ€“5 cm air gap

Top-up: Maintain EC while allowing air gap in Kratky

pH 5.8โ€“6.2; EC 1.0โ€“1.6 mS/cm

๐Ÿงช Nutrients

Type: Herb nutrient with micronutrients

Frequency: Check weekly; change 10โ€“14 days (DWC)

Dosage/EC: EC 1.0โ€“1.6 mS/cm; pH 5.8โ€“6.2

๐Ÿ“ Harvest

Start: 4โ€“6 weeks from sowing

Seasonality: Year-round

Duration: Continuous cuts

Harvest Indicators: Stems 15โ€“25 cm; strong aroma

Tips: Remove flower spikes to maintain leaf production.

๐ŸŒฑ Propagation

Seeds or softwood cuttings in water.

๐Ÿ› Pests & Diseases

  • Aphids/mites: Neem 0.5โ€“1%; prune for airflow; avoid over-N.

๐ŸŒฆ๏ธ Seasonal Notes (Malaysia)

Shelter from heavy rain; encourage airflow in monsoon.

๐Ÿ“ System Notes

Single plant per site; regular pinching keeps bushy.

๐Ÿ’ก Extra Care Tips

  • Harvest weekly
  • Rotate for even light
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Note

EC and pH are guidelinesโ€”adjust to plant response and your water source. In monsoon humidity, increase airflow and reduce overcrowding to limit disease.

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