Growing Spinach in Zone 10A

Spinach is a nutrient-dense cool-season green that grows fast in spring and fall.

Zone 10A has a very long growing season with mild winters. Many crops can be grown nearly year-round with successive plantings.

Top Growing Tips

• Plant as early as soil can be worked (tolerates light frost)
• Bolts in long days and heat — time plantings carefully
• Fall plantings often produce better than spring
• Keep soil consistently moist for tender leaves
• Malabar spinach is a heat-tolerant alternative for summer

Companion Planting

Good companions: strawberries, peas, beans, brassicas

Avoid planting near: none in particular

Harvest Timeline

35-45 days from seed

About Zone 10A

USDA Hardiness Zone 10A has an average last spring frost around Feb 1 and first fall frost around Dec 20. All planting dates above are calculated from these frost dates. Your specific location may vary — check with your local extension office for the most accurate dates.