Spinach: Planting, Growing and Harvesting Spinach Plants

Planting

Prepare the soil with aged manure about a week before planting, or, you may wish to prepare your spot in the fall so that you can sow the seeds outdoors in early spring as soon as the ground thaws.
If you live in a place with mild winters, you can also plant in the fall.
Although seedlings can be propagated indoors, it is not recommended as seedlings are difficult to transplant.
Spring plantings can be made one week before to one week after last spring frost date, as long as the soil can be properly worked. It's important to seed as soon as you can to give spinach the required 6 weeks of cool weather from seeding to harvest.
Select a site with full sun to light shade and well-drained soil.
Sow seeds 1/2 inch to 1 inch deep, covering lightly with soil. Sow about 12 seeds per foot of row, or sprinkle over a wide row or bed.
Soil should not be warmer than 70º F in order for germination.
Successive plantings should be made every couple weeks during early spring. Common spinach cannot grow in midsummer.
For summer types, try New Zealand Spinach and Malabar Spinach.
Plant in mid-August for a fall crop, ensuring that soil temps are cool enough.
Gardeners in northern climates can harvest early-spring spinach if it's planted just before the cold weather arrives in fall. Protect the young plants with a cold frame or thick mulch through the winter, then remove the protection when soil temperature in your area reaches 40º.
Water the new plants well in the spring.

Care

Fertilize only if necessary due to slow growth, or use as a supplement if your soil's pH is inadequate. Use when plant reaches 1/3 growth.
When seedlings sprout to about two inches, thin them to 3-4 inches apart.
Beyond thinning, no cultivation is necessary. Roots are shallow and easily damaged.
Keep soil moist with mulching.
Water regularly.
Spinach can tolerate the cold; it can survive a frost and temps down to 15ºF.

Pests

Leaf Miners
Bolting
Mosaic Virus/Blight
Downy Mildew

Harvest/Storage

Keep an eye on your plants. Harvest when leaves reach desired size.
Don’t wait too long to harvest, or wait for larger leaves; bitterness will set in quickly after maturity.
The whole plant can be harvested at once, and cut at the base, or leaves may be picked off plants one layer at a time, giving inner layers more time to develop.

Recommended Varieties

'Giant Nobel' is a plain leaf variety.
'Winter Bloomsdale' is a crinkled Leaf, fall variety, tolerant to mosaic viruses.
'Tyee' Can be planted in spring or fall, and is resistant to downy mildew.

Recipes

Cooking Notes

A pinch of baking soda in the cooking water keeps spinach greener.

Spinach boosts your brainpower; it can hinder iron absorption. For better absorption of iron, eat spinach with orange slices.

Wit & Wisdom

On March 26, 1937, a Popeye statue unveiled during spinach festival in Crystal City, Texas.

Where lilacs grow, old-time farmers say to plant spinach when lilacs are in first leaf.

Scatter spinach or lettuce seeds around emerging bulb foliage to make wise use of your garden space, and have a leafy green crop at the ready to cover the bare spots left by deadheaded spring flowers.

Comments

By Anonymous

reply

Hi,
How can I keep it from bolting before I get anything to eat? The sun (aka death rays) is very misleading at this altitude. Topping didn't seem to work - still 2 feet tall with 6 leaves. They were tasty leaves though :)

By Almanac Staff

reply

Spinach is a cold season crop and grows best in spring early-summer and in the fall when temps are cooler. New Zealand Spinach and Malabar Spinach do tolerate some hot weather. Plant the spinach in semi-shade or protect the plants from the hot sun with an umbrella or screen. Depending on where you live you can start some seeds now and hopefully you'll get some nice leaves before the ground freezes.