How to grow spinach in a pot

To grow spinach in pots you just have to learn to handle some key factors to be successful: when to sow, watering, hours of light, temperature, etc. They are important factors but easy to get to control well with these tips that I give you.

We also advise you which organic seeds to use , the best planters, growing boxes and tables for your garden and essential books to learn everything about organic gardening .

So go ahead and grow spinach in the urban garden because it is worth it and it is not a complicated crop even if you are starting in organic gardening and do not have much experience.

Also read about the properties of spinach .

How to grow spinach in a pot

Spinach, Spinacea oleracea L. , is a plant native to Asia that belongs to the botanical family Chenopodiaceae . , like quinoa or quinoa , beets and chard .


To stimulate the germination of spinach seeds, soak them in water for 8 hours before sowing. Then drain them well and plant them at a depth no greater than 3 cm. If you sows deeper than 3 cm you may have difficulties when it comes to germinating. Within two weeks they will have germinated and the seedling will be growing.

When sowing the spinach, leave a space of between 7 and 10 cm² for each seed because when the plant develops it will need it. Do not overcrowd the pots.

Sow the spinach seeds at any time of the year, but keep in mind that to germinate they need to have a temperature of approximately 20ºC.

Pot or grow table

Whether you are going to sow the spinach in pots or on a grow table, they should have a minimum depth of 30 cm. Spinach has a low branching root, so it is not necessary to provide large containers for its cultivation. Of course, make sure that the pots have holes in the base so that the irrigation water can come out if we water more.

Try to avoid soft plastic pots and containers. Opt for more natural and less polluting materials such as unglazed clay, geotextile, etc. Read more about types of pots .


For a 30 cm pot I will give you the approximate proportion that I usually use.

  • In the first layer, which would go at the base of the pot, put 4 to 6 stones to help drain excess water. That they do not cover the holes through which the water must come out.
  • Then we add a layer of about 4 or 5 cm of sand.
  • On top, place another layer of 15 cm organic soil for growing horticultural plants.
  • Add another 3 cm layer of worm castings or compost.
  • Complete the rest of the pot (about 7 cm) with organic soil.

You have more options for potting substrates .


Spinach is the type of plant that prefers to grow in a location where it receives direct sun. If you place it in a space that receives several hours of direct sunlight a day, it will grow much better and faster than if it is in semi-shade.


It is a relatively resistant plant to extreme temperatures. It can withstand temperatures between 5 and 28 ºC. Its optimum temperature for development would be between 15 and 25 ºC, although it will depend on the type of variety you are going to grow.

When the spinach is several days with a high temperature (more than 30 ºC) the plant can glean. This means that it is no longer as suitable to eat because it is more fibrous and because it begins to seed. So if you’re going to want to save your own spinach seeds for the next season or want to trade them with other gardeners, let me glean some plants and you already have a supply of seeds from your own garden.


You need regular waterings but try to avoid overwatering. Before watering, put a finger in the soil about 4 cm and if you notice humidity do not water that day. If you notice that the ground is dry, water. In the hottest months of the year we should water more frequently.

Plagues and diseases

Snails and aphids are the most common pests on spinach. You can prevent and fight the snail infestation in an ecological way with these tips, and there are also ecological remedies for the aphid infestation . Preventing or eliminating mildew with ecological options is also possible.


If they have had good growing conditions and depending on the type of variety you have planted, in about 7 weeks you can start to harvest your spinach and enjoy it sautéed, in salads, purees, lasagna, stews, green smoothies, etc.

With a clean scissor or carefully with your fingers, remove the leaves that are already ready.


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