Spinach (spinacia oleracea) is a really useful crop to sow in the vegetable garden, since they are satisfied with partially shaded positions and have a very long cultivation period: they can populate flower beds at various times of the year, starting from spring, up to winter tolerating the frost very well.
The plant mounts to seed at the end of its cultivation cycle, but when it is kept in the garden to obtain the vegetables it is harvested before it forms the flower. If you want to get the seeds of spinach, you must then let it form the stems from the center of the head and pollination takes place. In very hot weather, spinach suffers and tends to accelerate the whipping.
It is worth investigating the right period and way to sow this horticultural plant, so that you can learn how to do it and start growing spinach the right way.
The right time for sowing spinach
Spinach is a vegetable with an incredibly long sowing period, as it resists the cold very well. It germinates with temperatures of 12 degrees and is fine when the thermometer shows 15, it has a fairly fast cycle, reaching harvest in just 45 or 60 days from sowing. For these characteristics, the ideal is to sow spinach in spring, aiming to harvest before summer, or sow it after the summer heat for an autumn or winter harvest.
The most suitable months for sowing are therefore March, April and May, then August, September and October. Where the climate permits it can also be fielded in February and November, while in cool areas also in June and July.
In what moon they are sown
Since spinach is a leaf vegetable that must be harvested before being whipped to seed, it should theoretically be sown on a waning moon, this should delay the formation of flowers and seeds, with an advantage for the leaves.
The fact of following the moon in sowing is a consolidated tradition in agriculture for centuries, but it has no scientific evidence, so everyone can decide whether to follow the moon phases or sow spinach without looking at the moon.
How to sow
The spinach seed is not large but not tiny either, it is a ball that can be easily placed individually. One gram of seed can contain about a hundred seeds.
Theoretically, spinach can be placed both in seedbeds and in the open ground, but in general, direct sowing is preferred, which saves a lot of time, since particular attention is not required to repair the seedlings from any cold nights.
The sowing operation begins with the preparation of the soil, which we will detail later. To accommodate the seeds it must be well leveled and made fine with a hoe and rake. On the seedbed we go to trace the furrows, the seed must be about 1.5 cm deep, so a shallow trace is enough. We then put the seeds in the furrow at the right distance, we can help ourselves with a sheet of paper folded in half, and then we close by compacting the earth above the seeds by pressing it with our hands.
Once the sowing is finished, you need to water, an operation to be repeated constantly until the plants are well formed.
Plant sixth indicated
To put spinach in the garden, I recommend keeping distances of at least 15/20 cm between each plant and 40/50 cm between each row.
Sowing directly in the field is better to put a few more seeds (so sow every 5/8 cm) and then thin out at a later time, in this way even if some seeds do not germinate or are eaten by birds and insects, holes are not created in the plot. .
Let's take a step back and see how we must prepare the soil that will then host the spinach seeds. The right soil for this crop must have the following characteristics.
- Good drainage. Stagnant water can create problems of fungal disease, for this reason it is necessary to work the soil deeply, avoiding that with the rains water stagnations are created in the field.
- Ph higher than 6.5. Checking the pH value of the soil can be a good precaution before starting to grow spinach.
- Moderate fertilization. Spinach are satisfied with little fertilizer, they can also exploit the residual fertility of any previous crops.
- No excess nitrogen. Spinach can accumulate nitrogen in the leaves, forming nitrates which are toxic. For this reason it is important not to overdo the nitrogen supply, even natural fertilizations such as those carried out with manure in pellets can, if excessive, add too much nitrogen.
- Not too much sun. Since this cultivation suffers from excessive heat and too much sun, it is necessary to choose areas of partial shade to keep them during the summer, or to prepare shading nets.