Cool-season produce

Spinach

Spinacia oleracea

True spinach thrives in cool days. New Zealand and Malabar spinach are different warm-season crops, not synonyms.

EdibleCool-season crop

Growing spaceVegetable bed

Climate fitUrban core · USDA 9b–10a · Valley suburbs · USDA 9a–9b · Desert outskirts · USDA 8b–9b

Crop familyAmaranthaceae

Life cycleAnnual crop

Phoenix planting windowSeptember–February; easiest after fall soil cools.

How to plantDirect sow seed; spinach dislikes root disturbance.

Plant spacing4–6 in

FrostTolerates light frost once established; cover during a hard freeze.

Time to harvestAbout 30–90 days

SuccessionSow small batches every 2–3 weeks while the planting window remains open.

Special categoriesEDIBLE

Typical harvestPick outer leaves through winter; plants bolt as days warm.

Right plant, right place

Will Spinach grow at your Arizona property?

True spinach thrives in cool days. New Zealand and Malabar spinach are different warm-season crops, not synonyms.

Best regional fit: Urban core · USDA 9b–10a, Valley suburbs · USDA 9a–9b, Desert outskirts · USDA 8b–9b.

Light

Full winter sun; give leafy crops afternoon protection during warm fall and spring weather.

Water

Keep the vegetable root zone evenly moist with regular irrigation; adjust to rain, soil, and temperature rather than using a fixed summer schedule.

Planting & stewardship

1
Prepare a fertile, well-drained bed and keep seed or transplants evenly moist through establishment.
2
Thin to the final spacing; crowding reduces harvest quality.
3
Watch for aphids and caterpillars and protect sensitive growth from a hard freeze.
4
Harvest before sustained spring heat causes bolting or poor quality.

Read the growing reference ↗ Planting dates can shift with cultivar, weather, and your yard’s microclimate.