Regrow Romaine Lettuce

Want to regrow your lettuce at home? This easy method lets you regrow lettuce from kitchen scraps, first in water and then in soil, for a sustainable and rewarding gardening project.

Regrow Lettuce in Water

• Cut the lettuce about 2 inches above the base.
• You can store the cut top in the fridge or use it right away.
• Fill a cup with about 1 inch of water.
• Place the base of the lettuce into the water.
• Put the cup by a sunny window with direct sunlight.
• Change the water every 1–2 days (daily is ideal).
• Keep the environment between 45°F to 75°F (7°C – 24°C) for best growth.
• Watch it grow daily—by day 12, you can harvest and eat it!
• Note: It won’t grow larger in water after 14 days.

Transplant Lettuce into Soil

• After about 9 days in water, you can transplant it into soil.
• Prepare your soil: 60% topsoil, 40% compost, and a layer of mulch for moisture retention.
• Plant the lettuce 6–10 inches apart.
• Water daily—morning or evening. You can even reuse leftover water from the cup.
• Continue to monitor its growth and water as needed.

Harvest Time

• Harvest when the lettuce reaches around 8 inches tall.
• If you wait too long, it will flower, and the leaves may become bitter.
• Collect seeds from the flowers to regrow your lettuce again!

Tips & notes

• This is a great way to reduce waste and enjoy fresh lettuce from your own kitchen or garden.
• Perfect for small-space or beginner gardeners!
• Use natural sunlight and regular water changes for the healthiest regrowth.