How to regrow romaine lettuce in dirt. This allows room for regrowth.

How to regrow romaine lettuce in dirt Reply. So today I'd like to sha Learn how to regrow romaine lettuce from kitchen scraps with our step-by-step guide! Discover the benefits of cost-effective, fresh, and sustainable gardening. Regrowing romaine lettuce is a simple project that reduces food waste and provides a continuous supply of fresh greens. How to Regrow Romaine Lettuce in Water. That is, cut the leaves from the stem at about one inch (2. Eco-Friendly Regrowing romaine lettuce in dirt is a simple and rewarding process that can provide you with fresh, delicious leaves for weeks to come. Put the stem end in a shallow dish with about ½ inch (1 cm. After about a week, you should see new leaves sprouting. Place the cut end of the romaine lettuce stem into the soil, making Discover the secrets of growing romaine lettuce in your garden! This comprehensive guide explores how tall romaine can grow—typically between 12 to 18 inches—while offering tips on optimal soil, sunlight, and watering practices. However, the stems have the potential to regrow their lettuce leaves, using only water and Romaine Lettuce – This type thrives when its base is placed in water. Within a few days, new leaves will sprout from the center of the stump. Romaine is crunchy and perfect for salads and sandwiches. This won’t cost you anything either, aside from a little bit of time setting them up. In this article, we’ll walk you Steps for How to Regrow Lettuce from a Stem. Watch your romaine lettuce grow. Understanding these elements ensures a successful harvest. How to Regrow Lettuce: Romaine Lettuce; Shallow Dish; Water; Rocks ~ to stabilize the lettuce Poor drainage is the number one killer of romaine lettuce grown in pots. Many of you would like to know if you could also regrow other vegetables. You can easily regrow romaine lettuce by taking the stem or root end of a romaine heart and placing it in a shallow dish with water. Before planting, prepare the soil by removing any weeds, breaking up clumps, Will romaine lettuce regrow after cutting? Yes, While regrowing lettuce scraps in soil is possible, it’s still best to start out in water, at least until a few new leaves come in. (Note: an easy gardening project for the kids!) See how this non-gardener was able to regrow lettuce from stems - super easy #healthykitchenhack! @tspbasil Click To Tweet Choose the Right Lettuce: Select a fresh head of lettuce. Can I regrow romaine lettuce from store Dec 29, 2024 · Discover how to regrow lettuce from kitchen scraps in this comprehensive guide. Soak Option: For extra cleanliness, soak the leaves in a Jan 4, 2025 · To regrow lettuce, start by selecting a head of lettuce with the root still intact. You can do this by putting a stump in a 1/2 inch of water and check that it You are specifically looking for any type of lettuce that will stay intact as a head rather than individual leaves or a bunch. Water deeply but infrequently to encourage strong root development. Regrowing your lettuce couldn’t be easier. Pictured from back left: green onion, green garlic, beets, romaine lettuce, carrots, turnip, Celery, for example, if tended to properly, will regrow into full stalks. Next time, save your romaine lettuce scraps and you'll be able to grow your own romaine lett How to Regrow Romaine Lettuce in Dirt: A Step-by-Step Guide. Cut off the bottom of the lettuce bunch. The cut ends should be submerged, while the leaves stay above the water. It will regrow new leaves for a second harvest. 6 Step 6: Transfer to Soil; 1. Choosing the Right Container. I'll show you how to regrow romaine lettuce from kitchen scraps. two lettuce scraps. I noticed new Basic Regrowth Steps: Cut the bottom 2-3 inches from a romaine lettuce head, place it in water cut-side down, and ensure it receives adequate sunlight for optimal regrowth. This helps prevent mold. Romaine lettuce typically grows to a height of 12 to 18 inches and can have heads that measure 6 to 12 inches wide at maturity. Growing lettuce from scraps (in water) Regrowing iceberg lettuce, butter lettuce, or romaine lettuce in water is a very simple process that will provide you with some fresh new salad greens from the stump that you were likely going to throw away! I love regrowing lettuce from scraps in water because it’s literally free food! May 29, 2023 · The solution is to regrow your own lettuce from already harvested heads. Step 2: With the help of some sharp scissors, cut the outermost lettuce leaves and try not to take anything away from the inner leaves or core. Discover the ultimate guide to growing romaine lettuce hydroponically, ideal for urban settings and limited spaces. Replant it in dirt and onions will grow. Master the art of cutting romaine lettuce for the perfect Caesar salad with our comprehensive guide! Discover essential techniques for even cuts, explore the nutritional benefits of fresh romaine, and learn how to properly prepare and store your greens. To plant the lettuce you have grown from scraps, make a deep hole and push the stem into the soil so the base of the leaves sit half an inch above the soil. You can watch the video that shows a 5 day time-lapse and how fast it regrows! Once you have finished your lettuce do not throw it away. Not too short, but long enough to plant without difficulty. 0 to 7. Aim for a pH level between 6. To regrow lettuce in water, save the end from a head of lettuce. Soil Quality: Well-draining, fertile soil enhances growth. Look for fresh scraps free from mold or decay. 3 Step 3: Preserve the Heart; 1. Step 4: Plant the Romaine Lettuce. Start by cutting off the bottom inch of the lettuce head, where the roots grow. Place the end of the lettuce in a mason jar. The reason is that water does not contain any nutrients; so your lettuce will be dull and tasteless. A well-draining, nutrient-rich blend does wonders, acting as a cozy bed where romaine lettuce can stretch its roots. It grows quickly and offers a crisp texture. There was a little less regrowth Discover the secrets to sustainably regrowing romaine lettuce in your backyard! This guide walks you through essential steps, including soil selection, planting techniques, and care tips for thriving growth. Here are key soil requirements: Discover the secrets to effortlessly regrowing lettuce from store-bought heads in your home kitchen! This informative guide covers selecting the right varieties like Romaine and Butterhead, detailed step-by-step instructions for successful growth, and tips for overcoming common challenges such as pests and diseases. Do as many stalks of romaine lettuce as you wish. Watering: Consistent moisture is essential. Cut off the leaves, leaving about 1-2 inches of the base. Ensure you leave about an inch of the base for optimal growth. Simply cut off the bottom of the lettuce head, leaving just an inch of leaves in place. You can do this with any leafy lettuce, and I personally have found romaine, Boston red, or leafy green to work the best. 2. When preparing lettuce for salads, chop off the bottom 3 inches or so and keep it intact. You want to ensure that you are choosing healthy leaves that are free from any signs Regrowing romaine lettuce is easy and fun, ensuring you always have those tasty salad leaves available. If you’re using a plastic container for growing romaine lettuce, it’s crucial there are 2 - 4 holes in the bottom to allow excess water to drain. Select a Healthy Stump: Choose a romaine lettuce stump with intact leaves. It only takes about 12 to 14 days for your new plants to be ready to harvest, but note that you won’t get I tried this hack a few summers ago – I was intrigued to see if a black thumb like me could successfully grow something. Clone new basil, sage, mint, thyme, oregano, or rosemary plants: Remove lower leaves from the stems of fresh herbs and set the stems in water. We share a 5 day time-lapse at the end of the video. Change water in bowl every 1 to 2 days. Uncover the best Why Regrow Romaine Lettuce in Soil? Regrowing romaine lettuce in soil is a sustainable practice that reduces waste and enhances your gardening skills. You can grow lettuce from seed as well but this is a super easy method for those just looking for a few leaves here and there without any hassle! Getting lettuce cuttings is easy enough, since you can get the cuttings from any lettuce you purchase from Dec 31, 2024 · Discover how to keep romaine lettuce fresh and crisp with our comprehensive guide! Learn the nutritional benefits of this leafy green, explore different varieties, and master preparation techniques to elevate your salads and dishes. Choose the Right Lettuce: Select romaine or another leafy variety with sturdy stems. Place remaining stem in a shallow dish of water (about 1/2 inch). Step-by-Step Process. Romaine lettuce prefers well-draining, loamy soil with good organic matter. A few weeks ago, I did a video on how to regrow scallions. Water lightly, but on a regular basis and apply mulch over the root systems to lock moisture in the Discover the reasons behind the surprising bitterness of romaine lettuce in our insightful article. That’s all! Step 1: Let your romaine lettuce grow properly and develop thick, mature leaves. 4 Step 4: Provide Adequate Light; 1. Place in Water: Put your cuttings in a container filled with about 2-3 inches of water. Fit anywhere from 1 to 4 bottoms into a shallow bowl and fill the bowl Regrowing Romaine Lettuce. Select Scraps: Use the leftover base from romaine or leaf lettuce. The size and shape of romaine lettuce make it a good candidate for beginner gardeners to replant. This type of soil is Discover the secrets to regrowing romaine lettuce from kitchen scraps! Our comprehensive guide covers everything from selecting the right varieties and essential tools to detailed steps for successful growth. Learn techniques for regrowing popular types like Romaine, Butterhead, and Leaf Lettuce, while ensuring they get 12 to 16 hours of bright, indirect sunlight. Do I need to use a saucer or can I use a glass for regrowing? It is possible to regrow lettuce from scraps, especially romaine types, to get an extra crop of leaves. Ensure the Discover the reasons behind the surprising bitterness of romaine lettuce in our insightful article. Instructions: Start by cutting your purchased lettuce about 1-2 inch from the bottom. If you rush this process, there’s a high chance you may not end up with the most optimal tasting harvest. Cut the Lettuce: Slice the lettuce head, leaving about 1-2 inches of the base. If you decide to use soil for regrowing lettuce scraps, I would recommend using potting soil. Place on a window sill or under grow lights. I found Boston leaf was a little slower than romaine. We’ll explain how to regrow romaine lettuce in a few simple steps. Chop Off Bottoms of Lettuce. Buy lettuce from a farmer’s market or use this method to get two harvests from your garden Romaine plants; a lettuce harvest and a seed harvest. You’ll want a solid core with some leaves still attached. . You can replant lettuce after 2 weeks of growing to a pot or garden. If your romaine lettuce sit in standing water for too long, their roots will rot and the plants will likely wither away. Discover how to grow your own lettuce from grocery store varieties with our comprehensive guide. Learn about various hydroponic systems like Nutrient Film Technique and Deep Water Culture, along with essential steps for success. With insights on harvesting techniques, you’ll enjoy fresh lettuce Transform your kitchen scraps into fresh romaine lettuce with our easy guide! Discover how to regrow lettuce from the base of a discarded head, reduce food waste, and enjoy a sustainable gardening experience. This article highlights vital techniques to remove dirt, bugs, and pathogens, ensuring your greens are safe and flavorful. 1 1. Explore soil preferences, fertilization tips, and proper watering to boost growth. Leafy types tend to regrow better than others. Look for a fresh, green base for the best results. Soil Requirements for Romaine Lettuce. Enjoy quick results, cost savings, and the Discover the ultimate guide to growing romaine lettuce hydroponically, ideal for urban settings and limited spaces. Keep the water fresh. Cut off the bottom 1 inch part of lettuce after you have eaten it. Rinse the Core: Clean the core under running water to remove dirt and debris. To start, save the stump of a head of romaine lettuce and place it in a shallow dish with a half-inch of water. Enjoy quick results, cost savings, and the Planting Lettuce Scraps. Learn how to combat common challenges like pests and nutrient deficiencies, while enjoying the benefits of fresh produce and cost savings. Press the soil around the plant and water well. Unlock the secrets to sustainable gardening by learning how to regrow lettuce from scraps! This article offers a step-by-step guide on preparing and planting lettuce ends, with tips on soil, containers, and ideal planting conditions. We cover essential tips for selecting healthy lettuce heads, optimal watering, and soil quality. Plus, home-grown lettuce tends to be more flavorful and nutritious than store-bought options. Planting the Cuttings. You will, however, be able to regrow some leaves and Who would have known that the bottom stump of romaine lettuce can be planted and regrown if done correctly. Cost-Effective Solution: Regrowing romaine lettuce from scraps saves money by producing multiple harvests from a single head, reducing grocery expenses. The ideal soil pH ranges from 6. Add water to a mason jar. Let the lettuce grow a full head. Learn essential preparation steps, planting tips, and care instructions to nurture your romaine to full growth. A simple way to regrow lettuce If you have ever bought a pack of romaine lettuce from the store, you probably threw away the stem at the end. How To Regrow Lettuce From Food Scraps. 0 and 7. Butterhead Lettuce – Soft and tender, butterhead lettuce regrows well. Can you regrow romaine lettuce from the stump? put dirt in and plant over 200 seeds and seedlings that had been started indoors. You will want to leave at least two inches of Choose a Lettuce Type: Select romaine, butterhead, or leaf lettuce for regrowth. 1 The Process of Regrowing Romaine Lettuce. For fast regrowth, radicchio is another good choice. Wait for lettuce to start re-growing in the middle of the lettuce. Place the stem-end in a shallow dish with about half an inch of water or just enough to keep the stem-end submerged. Learn about the distinct growth stages and varieties, from Crisp to Mini Romaine, and get essential advice on spacing, fertilization, and Soil Conditions. To regrow romaine lettuce, cut the leaves around 1-2 inches from the bottom of the stem and place that stem in a dish filled with a half-inch of water. New growth begins from the center of the in as little as 3 days and you’ll have a new half-head of lettuce in about 2 weeks. Prepare a Container: Use a shallow dish or bowl. Learn about the nutritional benefits of romaine, popular varieties, and essential storage tips. Fill your chosen container with 1-2 inches of soil, then insert the lettuce stem, leaving Because romaine lettuce has a shallow root system, the soil must be kept moist, otherwise the plants will wilt and perish. Embrace cost-effective gardening Heading Lettuce. Nov 27, 2024 · Learn how to expertly harvest your romaine lettuce with our comprehensive guide. Choose a fresh core, at least 2-3 May 12, 2024 · Contents. Impress guests with beautifully presented salads featuring crisp lettuce, delicious dressings, and tasty toppings. 2 Step 2: Harvest the Leaves; 1. Did you know that you can regrow romaine lettuce in dirt? With the right techniques and materials, you can harvest fresh romaine lettuce multiple times from a single head of romaine. Maximize quality and enjoy delicious romaine by following our expert advice on 1 day ago · Key Takeaways. Now, when I say regrow, you probably won't be able to get a full head of lettuce from this project. Another reliable variety to regrow. Cut the leafy section, leaving With this super simple project, you'll learn how to regrow romaine lettuce from the grocery store, and in the process, you'll learn a bit more about how you can grow your very own garden-fresh salad leaves at home. Be sure to leave about an inch of lettuce Step 1: Buy the Lettuce. Regrowing lettuce: taking cuttings. Cut the Stump: Trim the top of the romaine lettuce about 1-2 inches above the base. But let’s not forget about the soil—it’s fundamental. And I’m happy to report it’s worked every time I’ve tried it. Boston Leaf. When you are going to use your lettuce, cut off the bottom just like you normally would. Rinse Thoroughly: Wash the core under running water to remove dirt and contaminants before planting. From selecting the right seeds to managing pH levels and pests, this article covers all the challenges and Discover the best practices for cleaning freshly harvested romaine lettuce from your garden. ) of water. 1. Using romaine hearts to regrow lettuce scraps has given the best results for me. Read on to find out how to get a kick start on your gardening and regrow your own lettuce. You can garden this Discover how to easily regrow romaine lettuce from its stem with our step-by-step guide! This article explores the benefits of home gardening and the nutritional perks of fresh produce. I’ve heard romaine re-grows best, but I’ve had success with green leaf and red leaf lettuce too. Learn how to cut, water, and care for your romaine, including pest control techniques to keep your plants thriving. Eat your purchased lettuce, cutting the leaves at about 1 inch from the bottom. Once the roots are longer and more mature, it’s safe to move the lettuce plant in soil. 0 for optimal growth. Uncover the best You could also try this with iceberg lettuce and other similar varieties. Step 3: Prepare the Romaine Lettuce. Place Romaine Regrowing romaine lettuce from your leftover scraps doesn’t take any special equipment. You harvest the head by cutting it off of the stem. Jul 10, 2020 · 1. From selecting the right seeds to managing pH levels and pests, this article covers all the challenges and Discover the best techniques for cleaning romaine lettuce to ensure freshness and safety. Romaine lettuce grows best in well-draining soil that is rich in organic matter. Can I use the same technique to regrow other types of lettuce? 2. How to Regrow Lettuce in Water 1. If you want to stretch your food budget, but you still crave organic, hyper-local produce – even during a global pandemic that’s Prepare the Lettuce Base: To regrow romaine lettuce, you'll need the base of a fresh head of lettuce. Radicchio. ) from the bottom. This is important, as the stem contains the plant’s growth hormones that will promote new growth. Green Leaf Lettuce – With its frilly leaves, green leaf lettuce is perfect for regrowing. Can I regrow romaine lettuce from store-bought chopped lettuce? 2. Discover essential care techniques, including pest control and companion planting, to ensure healthy growth. Discover the essential growth stages, optimal harvesting indicators, and practical steps for picking the perfect heads. Explore various types like Butterhead, Romaine, and Iceberg, along with their unique flavors and nutritional benefits. Ensure the small stem side is Yes, you can regrow most types of lettuce from scraps, including romaine, butterhead, and leaf lettuce. To propagate anything, you’re gonna need some cuttings. Do I need to use a pot with soil to regrow lettuce from scraps? While you can initially regrow lettuce in a shallow dish with water, it is best to transfer it to a pot with soil once the new growth has sprouted. Temperature: Optimal temperatures for romaine lettuce range from 60°F to 70°F. 3 3. a 2-3 inch stem with undamaged roots is all you need. Place the cut end in a shallow bowl. Learn how to harvest without contamination, effectively wash with clean water, and use tools like salad spinners for optimal results. Romaine lettuce is one of the most popular leafy greens used in salads, sandwiches, and other dishes. Romaine or cos lettuce is fresh, crunchy, How to grow Romaine lettuce from food scraps is easy to do. Via: Bonnieplant. Learn how growth conditions, maturity, and natural compounds like glucosinolates influence flavor. 5 Step 5: Wait for New Growth; 1. Ensure to water the crop regularly and Planting Lettuce Scraps. It was the fastest to produce more leaves and grew the most leaves as well. Harvesting Lettuce Grown in Water. In as little Cut off the bottom of the head of lettuce and place it in a small bowl of water. Romaine and iceberg work well. Place in Water: Submerge the stump’s base in a container filled with water. Heading lettuces like various Romaines can also regrow in the garden. To regrow romaine lettuce, you need the cut scraps (about 2-3 inches from the base), a small bowl or jar, and water. This will provide the 3 Steps to Grow Homemade Romaine Lettuce from the bottom of the stump 1/ Preparing the Soils. Excess heat can cause bolting, which affects taste and texture. Sit the container on a bright windowsill and a fresh set of leaves will re-sprout from the For this reason, regrowing Romaine lettuce from a grocery store for seed is not the best option. How to As long as it’s watered regularly, planted in the right conditions, and with nutrient-rich, well-drained soil, Romaine lettuce can be easy to grow. This allows room for regrowth. Take romaine lettuce and cut off the end of the lettuce. If you’re intentional about leaving some stem in the ground, you can regrow your Romaine. How to Regrow Romaine Lettuce in Water? Although we have only talked about regrowing lettuce in water from scraps, there is essentially another method that you can apply if you want to regrow lettuce from scraps in water. To regrow romaine lettuce, cut the base of a healthy lettuce head and place it in water. Cindy Swan says: Lettuce, bok choy, cabbage, fennel, Romaine lettuce, and celery regrow from their base. With expert advice Rinse the scraps under cool water to remove dirt. Position the root end in shallow water on a sunny windowsill, and roots and new leaves begin sprouting in about one week. By following these steps and care and maintenance Discover how to regrow romaine lettuce from kitchen scraps in a few easy steps! This article explores the nutritional benefits of romaine, its culinary versatility, and the science Are you ready to learn how to regrow romaine lettuce in dirt? Here’s what you’ll do How Do I Grow Romaine Lettuce? Supplies Needed: Chop up the romaine leaving a few inches from the bottom of the heart. Stretch your head of romaine by chopping off the leaves and leaving at least 1 inch at the base of the head of lettuce. Ensure that only the cut end Romaine or other lettuce from a stump: Follow the same procedure as for celery. Embrace cost-effective gardening Temperature: Optimal temperatures for romaine lettuce range from 60°F to 70°F. While the deer stole most of their tomatoes, there was an abundance of squash, lettuce, carrots, and other Transform your kitchen scraps into fresh romaine lettuce with our easy guide! Discover how to regrow lettuce from the base of a discarded head, reduce food waste, and enjoy a sustainable gardening experience. Step 3: Store your lettuce leaves in a cool Rinse the cuttings under cool water to remove any dirt. Pick the outer leaves as they mature, leaving new leaves to grow from the center. You can regrow lettuce from kitchen scraps by placing the core of a lettuce head in water. Prepare Soil: Fill your container with the prepared potting soil, leaving about an inch of space at the top. Plant Scraps: Place the lettuce base on top of the soil and press it slightly into the dirt. Change the water daily to prevent sogginess. Place the base in a shallow dish with some water, making sure to change the water every day. Embrace the joy of gardening while Discover the simple steps to regrow lettuce from stems at home, enhancing sustainability and reducing food waste. Cut the Core: Use a sharp knife to slice the head about 1-2 inches from the base. Aim for a pH between 6. You are specifically looking for any type of lettuce that will stay intact as a head rather than individual leaves or a bunch. Learn essential tips for successful planting, including soil preparation, watering, and fertilization. Fill it with water, leaving just enough to submerge the base of the lettuce. 0. We offer tips on selecting fresher heads, preparation techniques to reduce bitterness, and the importance of sourcing from reputable growers. Ensure the small stem side is Regrowing vegetable scraps is just one of them. There are some manuals that teach you to grow romaine lettuce with water, but you should choose well-prepared soils for your plants. Transform your garden into a vibrant ecosystem Discover the secrets to sustainably regrowing romaine lettuce in your backyard! This guide walks you through essential steps, including soil selection, planting techniques, and care tips for thriving growth. Mastering these practices will enhance your We have been Regrowing Celery for a couple of years now, but this is our first time trying to regrow lettuce. Step 2: Cut Off the Bottoms. You can regrow romaine lettuce from scraps as well as most other varieties. Learn how to create the perfect environment As the temperatures start to climb, I’ve learned to offer my romaine lettuce some shade to prevent it from bolting too quickly. Change water every other day in the mason jar. Plus, tackle common challenges like pests and yellowing leaves with proven solutions. March 11, 2024 April 14, 2020 by Kristine Lofgren. We used Romaine Lettuce and had a nice green plant in 5 days. Place it in a bowl of water and observe the central part of your plant. This ensures enough root material for regeneration. So this won’t work for leaf lettuce, etc. Pay attention to the proper spacing and care and your plants should thrive 1. Water Maintenance: Change the water every few days to keep it fresh and prevent mold, ensuring the cut end is only submerged halfway to avoid root rot. The growth process involves key stages: germination (7-14 days), seedling stage (4-6 inches in 3-4 weeks), vegetative stage (up to 12 inches in 6 weeks), and maturity (ready to harvest in 75-90 days). Instead of tossing out the base of the lettuce, you can use it to produce more leafy greens. Romaine lettuce thrives in nutrient-rich soil and proper planting techniques. 7 Step 7: Care for the Plant; 2 Frequently Asked Questions. Cut the head of romaine lettuce just above the soil line, leaving the remaining stem and leaves intact. Now, without further ado, let’s find out how you can When it comes to regrowing romaine lettuce, the first step is to properly harvest the leaves. Explore tips for maximizing your yield through continuous harvesting, companion planting, and optimal spacing. 2 2. Boc choy, Romaine lettuce, green onions, fennel and leeks will all (eventually) regrow to be full sized, as well. Elevate your home Discover the art of harvesting romaine leaf lettuce with our comprehensive guide! Learn the best timing, effective cutting techniques, and essential post-harvest care to ensure your greens stay fresh. Learn the best cutting techniques, planting tips, and harvesting signs to ensure a bountiful crop. Dec 28, 2024 · Romaine Lettuce: This type has long, sturdy leaves. Plus, gain valuable post-harvest care tips to keep your lettuce fresh and flavorful. Our comprehensive guide covers effective methods like rinsing, saltwater soaks, and vinegar solutions to eliminate dirt and pesticides. I noticed new leaves in about 3 days. Position it in a sunny spot and change the water every few days. With proper rinsing and storage methods, you'll enjoy fresh romaine while How to Regrow Lettuce from Kitchen Scraps. Buy romaine lettuce. 1 Step 1: Choose the Right Lettuce; 1. The plant will pump out new baby Romaine leaves within weeks. This keeps the lettuce stable while regrowing. Lettuce plants are fast growers and, if done right, they should be ready to harvest within two weeks without any dirt at all. Gently rub the leaves to remove dirt and debris. It worked like a charm, and was so easy to do. 5 cm. ftirahy ywp eeys zen uutkzqo vztd qkdt rfufp mmfzss lbai