Fill your pots approximately three-quarters full with potting soil, place one to three seeds into the pot and cover the seeds of the light layer of soil. Place the pots in a well-ventilated area in indirect sunlight. The seeds take approximately three to five weeks to germinate. Transplant the seedlings into larger pots, so they may continue to grow, when the seedlings have at least four leaves.
Transplant the plants into your garden after the threat of frost has passed. Plant them 16 to 18 inches apart with organic compost, such as manure. Jalapenos grow best with at least six hours of sunlight daily in temperatures between 80 and 90 degrees Fahrenheit.
Water your plants with at least 1 inch of water per week, do not over water, since this can damage the plants. Keep a close eye on your jalapeno plants to keep the area around them well weeded. Your plants grow to approximately 3 feet high and yield ripe jalapenos in three to four months.