Greenhouse Gardening - How to Grow Spinach?

Greenhouse Gardening - How to Grow Spinach?

May 25, 2017 0 comments

Spinach is an annual plant belonging to the amaranth family. It is native to the Asian continent. Its leaves, used as a vegetable, are a great source of Vitamins A, B, and C and have the highest concentration of iron and calcium of all green vegetables. It thrives in greenhouses and is easy to grow if you follow these steps.


  • Spinach does well in a well-drained nutrient-rich soil so you should till the soil about a week before planting and add aged manure.
  • You can start the seeds directly in your garden or plant them in a nursery and transplant the seedlings about three weeks after they sprout.
  • Sow the seeds in shallow holes between half an inch and 1 inch deep and cover lightly. You should sow about 12 seeds per foot.
  • To increase germination, the preferred temperature of the soil should be between 70 and 75 degrees Fahrenheit.
  • Water adequately before and after the seeds germinate.
  • If you start the seeds in the seedbed, thin them about three weeks after they sprout. The recommended spacing for spinach plants is 3 inches apart. 

Tips and tricks

  • Spinach can tolerate cold weather relatively well. However, young plants may need the protection of thick mulch in winter.
  • Aside from thinning, spinach does not require any special care. Even working the ground around the roots is unnecessary more so because its roots are shallow and any cultivation can easily damage them. Instead, apply mulch instead to suppress weeds and keep the soil moist. 

Common problems

- Spinach is very susceptible to leaf miner attacks. Downey mildew and mosaic virus are just as catastrophic.

Watering requirements

Spinach requires regular watering. Ideally, apply at least 2 inches of water every week.

Soil requirements

- Spinach requires a well-drained nutrient rich soil with pH ranging between 6.5 and 7.0. 

Lighting requirements

Spinach thrives in just as well in sunny and partial shady conditions. When looking to set up a greenhouse kit to grow spinach ensure you place it to maximize lighting.


Harvest spinach by plucking the leaves from the plant.

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