Basil
Ocimum basilicum · Lamiaceae
📷 BernaBotto · CC BY-SA 4.0
The gardener's calendar
It's peak harvest for basil: pick regularly and at the right stage to boost production and extend the season.
ID card
- Foliage
- Deciduous, tender and aromatic
- Blooming
- July to September, white or pink flowers in spikes
- Adult size
- 30 to 60 cm in height
- Growth
- Fast
- Hardiness
- Tender (0 to 10 °C minimum)
- Origin
- Tropical Asia
- Soil type
- Rich, well-draining, slightly chalky
- Light requirements
- Full sun (6 to 8 hours minimum)
✓ Taxonomy verifiedSource: AI estimate · hardiness: reliability high.
Expert tips
The key tip
Harvest leaf regularly (2-3 times a week) to boost branching: plucking leaves from top and bottom forces the plant to fill out. Pinch off flower buds as soon as they appear if you're after tender leaves.
The common mistake
Letting basil flower too early: lots of folks think it's natural, but flowering drastically slows leaf production and the leaves get tough and bitter.
The pro's trick
Sow in succession (every 3 weeks from May to August) rather than all at once: you'll have tender basil all summer long. The 'Greek' and 'Genovese' varieties are hardier to disease than 'Egyptian Spice'.
Seasonal watch
August-September: warm rains and stagnant humidity trigger fusarium (sudden stem wilting). Keep good air flow, avoid wetting the foliage, and cut back preventatively if you spot early symptoms.
Care
Exposure and light
Basil loves the sun and is ideally grown in full sun, for a minimum of 6 to 8 hours per day. A south or southwest-facing exposure allows it to develop its aroma to the fullest. Indoors, place it near a well-lit window to prevent etiolation.
Watering
Keep the soil moist but not waterlogged. Water regularly, especially during hot periods, about 2 to 3 times per week depending on the weather. Prefer watering in late afternoon at soil level rather than on the foliage.
Pruning and pinching
Regularly pinch off young stems to encourage a bushy habit and delay bolting. Pick leaves as needed for cooking. Once flowers appear, they can be removed to extend the productivity of the foliage.
Fertilizing
Apply balanced fertilizer every 3 to 4 weeks during the growing period (spring and summer). An addition of compost or organic matter at planting usually suffices for annual crops.
Soil and planting
Basil prefers rich, well-aerated and well-draining soil. Enrich the soil with compost before planting. In containers, use quality potting soil mixed with a little sand to improve drainage.
Diseases and pests
Basil can be affected by powdery mildew in overly humid or warm conditions. Prevention: ensure good air circulation and avoid watering the foliage. Aphids and whiteflies are the main pests; treat with a mild soap-based preparation if necessary.
Did you know?
Basil is associated with opposite meanings depending on the culture: in Western Europe, it symbolizes love and protection, while in India, sacred basil (tulsi) has been venerated for millennia as a spiritual plant. In the Middle Ages, it was believed to transform into a scorpion if left under a pot for too long — a wonderful legend that shows the respect and fascination it inspired!
Where to buy it
Plant in spring or early autumn, avoiding spells of intense heat. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, April, May, September.
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Tips generated and checked by Viridia — adapt them to your local climate.