Zucchini
Cucurbita pepo · Cucurbitaceae
📷 Various · CC BY-SA 1.0
The gardener's calendar
It's peak harvest for zucchini: pick regularly and at the right stage to boost production and extend the season.
ID card
- Foliage
- Deciduous, herbaceous
- Flowering
- June to August, yellow flowers
- Adult size
- Approximately 80 cm tall, spreading habit
- Growth
- Very fast
- Hardiness
- Heat-loving, frost-tender
- Origin
- Central and South America
- Soil type
- Rich, well-draining, slightly acidic to neutral
- Edibility
- Edible fruits
✓ Taxonomy verifiedSource: AI estimate · hardiness: reliability medium.
Expert tips
The key tip
Sow directly or in pots after frost, in amended soil: squash is not demanding but appreciates humus. Mulch generously to save water and reduce disease.
The common mistake
Planting too densely or without mulch: squashes in direct contact with wet soil rot, and proximity promotes pathogens.
The pro's trick
Remove a few leaves that shade developing fruits in July-August: more light speeds up ripening and intensifies color before harvest.
Seasonal watch
September-October: as soon as nighttime temperatures drop, stop watering to harden the fruits.
Care
Light exposure
Place your zucchini in full sun, with a minimum of 6 to 8 hours of direct sunlight daily. A well-exposed location promotes generous production. Avoid overly shaded areas that reduce flowering and fruit formation.
Watering
Keep the soil regularly moist, especially during growth and fruiting phases. Water deeply 2 to 3 times per week, preferably at the base and in the morning. Reduce slightly during cooler periods. Avoid excess water that encourages fungal diseases.
Soil preparation
Prepare soil rich in organic matter by incorporating compost or well-decomposed manure before planting. Ensure good drainage to prevent root asphyxiation. Slightly acidic to neutral pH is ideal for optimal development.
Fertilization
Enrich the soil with compost at planting time. During cultivation, apply balanced fertilizer every 3 to 4 weeks or potassium-rich fertilizer during flowering to promote fruit set. Avoid excess nitrogen that favors foliage at the expense of fruits.
Pruning and maintenance
Pinch the apex of main stems when the plant reaches 30 to 40 cm to encourage branching. Remove diseased or overly dense leaves that hinder air circulation. Harvest young zucchini regularly (15 to 20 cm) to stimulate continuous production.
Pests and diseases
Watch for powdery mildew and downy mildew, common in humid climates: ensure good air circulation and avoid overhead watering. Control aphids and spider mites with soapy water sprays if needed. Practice crop rotation to limit pathogen buildup in the soil.
Did you know?
The zucchini is actually an immature squash, harvested before full maturity: if you let it grow large, it becomes a true pumpkin! Originating in South America, it only became popular in Mediterranean Europe after the 16th century. It was in southern Italy that it received its name 'zucchina' (little squash), from which our word 'zucchini' derives.
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.
Add this plant to my garden →Plants from the same family
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- Winter squashCucurbita maxima
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Tips generated and checked by Viridia — adapt them to your local climate.