Planting and Growing Guide for Zucchini (Cucurbita pepo)
Description
Zucchini, also known as Courgette, Courgette Marrow, Summer squash is a prolific producer under the right conditions. It is closely related to Pumpkin, Cucumber, Watermelon, and Squash. It has similar requirements to these plants, although the vines do not climb or spread as much. It is best planted directly into a round mound in an area with plenty of space, light and ventilation. Plant 4-6 seeds in each mound in pairs 10 cm apart. Thin out to only keep the strongest seedling. Thoroughly water the seeds after planting, but then don't water again, apart from a light spray of the surface until they germinate. The Zucchini seeds are very prone to rotting in the soil if kept wet. Some varieties trail others form a more compact bush form. Choose varieties that are resistant to moulds, especially in humid areas. Spraying with a Bicarbonate of Soda solution (1 teaspoon to a pint or litre of water) can help control powdery mildew when it appears. Zucchini initially only produces male flowers which will not yield any fruit.The female flowers appear later after the weather warms a little. Growing Zucchini in mild winters that are frost free can be frustrating as only male flowers may be produced. You can eat the flowers, but fruit production may be low.
Planting Guide
Seed Depth: Sow seed 1 cm (1/2 inch) deep in seed trays. Plant out after 4-6 weeks when frosts have ceased.
Space between plants: Space plants about 40-70 cm (2 feet) apart. Allow 60 cm (24 inches) between rows. Do not overcrowd the plants to reduce likelihood of fungal problems. Good airflow around the vines is essential.
Harvest Time: Harvest in about 6-8 weeks, but the very small fruit can be picked earlier. Harvest continuously by picking regularly
Hints:
- Water the base of the plants, not the leaves and fruit, to reduce the likelihood of moulds. But Zucchini need regular watering to avoid growth checks.
- Does best in full or half sun
- Frost tender and male and female flowers can predominate at various times depending on temperature
- Feed regularly with liquid fertiliser or well-rotted manure as plants grow
- Does best in rich, well-drained soil with neutral to slightly acid pH
- Plant groups of seed in batches every few weeks to get a continuous supply
- Zucchini foliage is easily damaged and dried out in wind. Water frequently in hot weather as the plants will wilt.
Disclaimer: The PlantWhatWhen vegetable planting guide is only designed for use as a very general reference for home gardening purposes. It is not to be used for farming, markets or commercial activities of any kind whatsoever. We take absolutely no responsibility for the accuracy and adequacy of the information provided on this site. We recommend that you consider your local climate, weather patterns and conditions when deciding what and when to plant in your home garden. It's entirely your own decision. Happy Gardening and Best Wishes!