PlantFiles is getting a new look! Just in time for spring, we're rolling out a new look for the best online plants database. It will also work with your smart phones and mobile devices, so now you can take it with you on garden center visits or botanical garden tours. Questions or comments? Please post them here.

Zucchini, Courgette, Summer Squash
Cucurbita pepo 'Bianco di Trieste'

Family: Cucurbitaceae (koo-ker-bih-TAY-see-ee) (Info)
Genus: Cucurbita (koo-KER-bih-ta) (Info)
Species: pepo (PEP-oh) (Info)
Cultivar: Bianco di Trieste
» View all varieties of Squash


Zucchini (summer)


18-24 in. (45-60 cm)


24-36 in. (60-90 cm)

36-48 in. (90-120 cm)

Days to Maturity:

41 to 50 days

Mature Skin Color:


Medium Green


4 to 6 pounds (2 to 3 kg)

7 to 11 pounds (3 to 5 kg)



Disease Resistance:

Powdery Mildew (PM)

Seed Type:

Unknown - Tell us

Other details:

This plant is attractive to bees, butterflies and/or birds

Average Water Needs; Water regularly; do not overwater

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Propagation Methods:

Unknown - Tell us

Seed Collecting:

Allow unblemished fruit to ripen; clean and dry seeds


This plant has been said to grow in the following regions:


Gardeners' Notes:


On Apr 19, 2015, herbloverCA from San Ramon, CA wrote:

Starting w/3 seedlings about 6" tall, potting them up from small cell pack. Will plant them in garden bed, full sun, when the soil warms up, probably last part of April, beginning of May. Reports from others say to harvest the zukes when small, just after the flowers close; expect female flowers (short stem) 4 weeks after planting. Said to be and good for harvesting [male] flowers (which have a long, slender stem) to use for fritters, stuffing, etc. Bush habit is said to be 3' tall and wide. Haven't planted bush zukes before, thought we'd give 'em a try. Skin said to be pale green, flavor 'broccoli-like.' Will report on growth, flavor, etc. later in growing season.

To make sure pollination occurs, I always plant lots of plants to attract beneficials - sweet alyssum, parsley... read more