Grow Mexican sour gherkins in well-drained soil to which you have added 3 to 4 inches of well-rotted manure or compost.
Install a cage or trellis, 6 inches from the plants, to give them support as they grow.
Provide the Mexican sour gherkins with 1 inch of water a week during periods of low or no rainfall. Water in the morning and at the soil, not overhead.
Fertilize the Mexican sour gherkin plant when it produces buds. Use a 10-10-10 fertilizer and scatter it on the soil around the plant. Don't allow the granules to touch any part of the plant and water to a depth of 6 inches after application.
Harvest the Mexican sour gherkins 65 days after planting by cutting them from the plant with pruning shears.