The average price for waxy potatoes in Germany has increased to 1.63 euros per kilo from last year's 1.54 euros due to heavy rainfall delaying planting and harvesting. The supply of early potatoes is tight, leading to higher prices, and the situation is worsened by fewer imports from countries like Israel, Egypt, and Spain, and a shortage of seed potatoes due to decreased production and a ban on certain pesticides. Consumers are expected to see a decrease in prices by July, and the main potato harvest for supermarkets will begin in mid-June.