UC Master Gardeners, Santa Clara County, CA
University of California
UC Master Gardeners, Santa Clara County, CA


Garden Help > Vegetables

UC Links

Photo: Aziz Baameur
Photo: Aziz Baameur
How to grow: Spinach, UC Davis Vegetable Research and Information Center 

Pest management: Spinach cultural tips, pests, and diseases

The Basics

When to plant

  • Transplant: February–April, September–October (possibly November)
  • Direct seed: March–April (possibly February), September–October (possibly November)
  • If growing from seed for transplants, allow 4 weeks to be ready.

Harvest window

  • Harvest spinach as soon as the leaves are large enough to use.
  • You can pick individual outer leaves, or carefully cut the entire plant above the growing point to encourage a second harvest.
  • Once the plants mature, it is best to harvest the whole plant rather than just the outer leaves.

Care overview

  • To ensure a continuous harvest of tender young leaves, plant in succession every week or two to extend your harvest window.

Recommended Varieties for Santa Clara County*

Oriental Giant, Hybrid Giant arrowhead-shaped leaves are sweet and crisp, on long stems held high off the ground. Vigorous plants will produce all winter long. 18–24" tall. Plant 8–10" apart.
Regiment, Hybrid Tender deep green leaves with sweet, nutty flavor, on high-yielding plants. 10–12" tall. Plant 6–8" apart.

Other recommended varieties: America, Bloomsdale Longstanding, Giant Nobel, Tyee F1, Viroflay, New Zealand (summer substitute)

* Many other varieties may also do well here in Santa Clara County. This list is based on UC Master Gardener trials, taste tests, and feedback from local growers.

Webmaster Email: webmaster-mgsantaclara@ucanr.edu