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Zucchini

Cucurbita pepo var. cylindrica

Belonging to the Cucurbita genus, Zucchini has a botanical name of Cucurbita pepo var. cylindrica.

Zucchini is a summer squash. Very abundant producer. Easy to grow, delicious succulent vegetable with so many original ways to prepare. A prolific cropper producing tasty zucchini over a very long period. Ideal for cooking and freezing. Flowers are also edible.

Zucchini has male and female flowers and requires an insect (or a gardener) to transfer pollen from the male to the female flower.

Zucchini grows as an annual and is an edible vegetable / herb. Being an annual plant, it tends to grow best over the course of a single year. Zucchini is known for its phorb habit and growing to a height of approximately 90.0 cm (2.93 feet). This plant tends to bloom in early summer. Popular varieties of Zucchini with home gardeners are Black Beauty, Dark Green, Fordhook, Costata Romanesco and All Green Bush.

Italy is believed to be where Zucchini originates from.

Due to how easy it is to grow in a variety of conditions, Zucchini is great for beginner gardeners and those that like low maintainance gardens.

This plant info is provided by the myfolia gardener's wiki. All details about Zucchini have been kindly provided by our members.

How to grow Zucchini

  • Full Sun

    +
  • Medium

Water mounds deeply at least once a week. Pick the zucchini when they are about 15cm / 6in long – if you leave to grow any longer they can become tough.


Avoid watering the leaves as this will encourage powdery mildew and other fungi. Water below the leaves in the evening or early morning. Water very deeply at least once a week.

Plant in a location that enjoys full sun and remember to water moderately. Zone 3 to 12 are typically the USDA Hardiness Zones that are appropriate for this plant (although this can vary based on your microclimate). A soil ph of between 5.6 and 7.5 is ideal for Zucchini as it does best in weakly acidic soil - weakly alkaline soil. Keep in mind when planting that Zucchini is thought of as tender, so remember to wait until your soil is warm and the night time temperature is well above freezing before moving outside.

Growing Zucchini from seed

Will not tolerate any frost. Plant seed or transplant outside after the absolute last chance of frost has passed. Sow 5-6 seeds in hills in well-drained fertile soil and full sun. Thin to three plants per hill. If you wish to start plants indoors, start them 3-4 weeks before last frost using peat pots. Make sure to weather them before setting into the ground.

Try to aim for a seed spacing of at least 2.93 feet (90.0 cm) and sow at a depth of around 0.99 inches (2.54 cm). Soil temperature should be kept higher than 15°C / 59°F to ensure good germination.

By our calculations*, you should look at sowing Zucchini about 42 days before your last frost date .

Transplanting Zucchini

Plant out in “mounds” about 1m (3 feet) apart. Thin to two plants per mound. Disturb roots as little as possible while transplanting.

As Zucchini is tender, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.

By our calculations*, you should look at planting out Zucchini about 14 days after your last frost date.

Companion plants for Zucchini

These plants have been known to grow well alongside Zucchini so consider planting:

Repellent plants for Zucchini

These plants will not grow well with Zucchini so avoid planting these within close proximity:

Common Zucchini problems

These problems, diseases and pests are known to affect Zucchini plants:

Ongoing wet weather can lead to powdery mildew infection that shows in a white coating of the leaves. While this normally isn’t dangerous for the plant it can still negatively influence yield. However a very effective and easy countermeasure against this is to spray affected leaves with a mixture of vegetable oil (2 teaspoons), baking soda (1 teaspoon) and water (1 quart).1

  • Powdery Mildew

    White powdery spot disease that affects a large variety of plants.

  • squash vine borer

    Larvae bore into squash vines to feed, which blocks the flow of water to the rest of the plant.

Other names for Zucchini

Courgette

Cucurbita pepo L. var. cylindrica Paris, Cucurbita pepo ssp. pepo var. giromontiina

Misspellings: Zucchinis, Zuchinni

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Zucchini care instructions

How long does Zucchini take to grow?

These estimates for how long Zucchini takes to sprout, grow and harvest are from real observations from real gardeners, right around the world. Start logging and journaling your observations to participate!

When should I plant Zucchini?

Our when to plant Zucchini estimates are relative to your last frost date. Enter your frost dates and we'll calculate your sowing and planting dates for you!

Footnotes

1 Sally Jean Cunningham: Great Garden Companions, Rodale 1998.

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