"There are no more seasons." This sentence, which we could hear in the course of conversations, has never been so topical: shifted seasons, mild winters, heat waves, drought, etc.
Even if one is "climate skeptic", it is hard not to see that the climate is changing. If the latter has an impact on us, it is even more true for plants; especially in summer. The water scarcity and the usage restrictions for watering need to adapt. This is why we offer you a selection of 23 drought tolerant vegetables, in order to continue to cultivate your vegetable garden while preserving resources.
Important notes before you start : even if the following vegetables support the drought, they still need water (even if it is less). A particularly summer torrid could therefore be right about your crops. Finally, you should also know that the type of soil also has an important role. For example, soil rich in organic matter, humus or manure retains water much more easily than poor soil.
Selection of drought tolerant vegetables
As a rule, these are the vegetables requiring the most water. However, there are species that are resistant to dry summers. We can cite :
- the artichoke;
- Brussels sprouts;
- the tetragon, which is a good candidate to replace spinach (as well as the root);
- head cabbage (although it likes cool soils);
- the bon-Henri goosefoot, the leaves of which are eaten raw or cooked;
- sea cabbage with a leaf flavor reminiscent of cauliflower;
- romaine, lettuce with long leaves that can be eaten both raw and cooked.
Main source of food Until a few decades ago, this category of vegetable plants contains many varieties of drought tolerant vegetables. There is of course the potato, but we can also cite others such as:
- the oca of peru;
- tuberous parsley, which can replace parsnip (a little more sensitive to drought);
- the vitelotte;
- the tuberous nasturtium, whose tubers can be eaten, but also young leaves and stems;
- Jerusalem artichoke, which has always been a good substitute for potatoes;
- the chervis.
They are the ones who benefit most from a lack of water. Even in very dry weather it is almost useless to water them. Among the most resistant are:
- The lens ;
- pea ;
- the vegetable garden.
Fewer in number and more available in the kitchen, edible bulbs perform well and do not require watering to grow properly. Among them are:
- the rocambole onion.
Some tips for getting drought tolerant vegetables
Choose old varieties
Cultivated at a time when watering and the use of pesticides were not systematic, the old varieties of vegetable plants have learned to resist the drought (and diseases). This resistance is written in their genes and therefore facilitates the cultivation of these vegetables.
Create your seeds
To get drought tolerant vegetables, you can also make your own selection of plants resistant to lack of water and collect the seeds. So, year after year, you will obtain varieties that will grow without watering.
For further :
- France 2 report on drought-tolerant vegetables
Straw as much as possible
You are no doubt familiar with the adage "one hoe is worth two waterings". But the mulching is not left out and saves a lot of water. Indeed, by depositing a sufficiently thick layer of mulch (minimum 5 cm), it is possible to considerably reduce evaporation and conserve soil moisture. The waterings are therefore more spaced and, in some cases, they can even be stopped.