The main season for rhubarb is between March and April, but the sticks can also be harvested and processed until 24 June, St. John's Day.

Depending on the color of the stem and the flesh, amateur cooks can estimate what the taste will be approximately. As a rule, the greener the variety, the more acidic the taste. If the vegetables are more red in color, then they usually taste sweet and mild. Among the most famous varieties are "Esta", "Early Green" or "Gigant"