For those who still want fresh vegetables during winter time, the cultivation of spinach in a greenhouse is the right thing to do. Spinach tolerates low temperatures, therefore, can be sowed even late in the year. If sowed by October, harvesting is still possible in the same year. This way, spinach supplies all sorts of important vitamins and minerals even in the rough winter time. Compared to frozen spinach from supermarkets, the spinach from your greenhouse will be much healtier.
The ideal place for the spinach is a spot in the greenhouse where it gets the most sun. The soil should be loose but not over-fertilized. Press the seeds into the soil and cover them slightly with some more soil. Do not press down the soil too firmly and do not step firmly onto the seeds in the ground. And of course, do not forget to water the spinach seeds. When watering, choose warmer days and water sufficiently. It will take approximately three weeks till the spinach germinates. Should the temperatures drop quickly during cold autumn days, you can place small and safely burning (!) candles into smaller greenhouses. This will keep the temperature in the greenhouse pleasant, and the air will not cool down too much.
Sowing to harvesting the spinach, takes about 8 weeks. After that, the spinach can be harvested for the first time. If you regularly cut the spinach leaves slightly above the soil, you will be able to harvest each plant several times. Please make sure that the heart of the spinach is not cut off in order to ensure further harvests. This way you will be able to harvest and enjoy your spinach up to four times a year. However, when the spinach starts to bloom, it should not be consumed any longer.
Spinach belongs to the amaranth family and emerged as cultural form in Southwest Asia. Today, leafy vegetables like spinach are favoured because they contain very important ingredients like minerals, vitamins and iron. Spinach can be used for many delicious dishes. Very often, boiled potatoes and fried eggs are served together with steamed spinach.
So no reason to fear cold autumn days – spinach usually tolerates these temperatures. So give it a try – and enjoy harvesting, cooking and consuming your own spinach. Especially since you know exactly where it comes from and how it was grown.