Time It Takes for Eggplants to Grow True Leaves

Starting the Seeds

• Correctly starting eggplant is the first step toward growing true leaves. To germinate the seeds, fill a seed-starting tray up to 3/4 inch from the top with moist, sterile seed-starting mix. Sprinkle the seeds on the surface and cover them with a 1/4-inch layer of the seed-starting mix. Spray the surface with water to moisten it, and then place the tray on a heat mat set to 80 degrees Fahrenheit. Keep the medium moist -- not wet -- throughout the germination period. Expect the seeds to sprout within one week to 10 days.

After Germination

• The seedlings need light to thrive after they emerge. To provide this, place them in a sunny, south-facing window in an area where the daytime temperatures are between 65 and 75 degrees Fahrenheit and the nighttime temperatures are between 60 and 70 degrees Fahrenheit. Water the medium as needed so it feels moist to the touch. Under these conditions, expect the first set of true leaves to emerge within 15 to 20 days after sowing the seeds.

True Leaves

• After the first set of true leaves opens, you can transplant the seedlings to individual pots. Before the true leaves, the initial leaves you see are known as the cotyledons, or seed leaves. After these, the first set of true leaves will emerge above the seed leaves. The plants will continue to produce true leaves, and once the fourth or fifth set of leaves has developed, they're ready to transplant in the garden.

Transplanting

• One main rule for transplanting eggplant is to ensure that all danger of frost has passed and the soil temperature is around 65 degrees Fahrenheit. This may be about three weeks after the last frost date. Harden off the transplants over a one-week period by placing them in a sheltered, outdoor area for a few hours each day. Gradually increase how long they spend outside and increase their exposure to the sun. Once the plants have acclimated, transplant them 2 to 3 feet apart and leave at least 3 feet between rows.