Category: Vegetables

Water hyacinth, water lettuce, and duckweed are all members of the floating plant group. Submersed plants are the best oxygenators, as they release oxygen (O2) directly into pond water. Public domain. As you’re reading this article, presumably you’re looking for plants that are efficient water oxygenators. What does water lettuce do? Water lettuce is great […]

Water lettuce does best in water temperatures between 70 and 80 degrees Fahrenheit. It’s generally recommended for USDA zones 9 to 11. Because this plant lives in water, it thrives in medium to high humidity levels. Low humidity levels will make growing this plant a challenge as it can dry out the leaves. How long […]

Water lettuce needs full to partial sun exposure. Is water lettuce a low light plant? Just as water lettuce provides shade for your small aquarium pets, they need shade. If you’re growing the plant indoors, you can either use sunlight and put the tank near a window or use fluorescent grow light (T5 or T8 […]

Lettuce wilts because it loses water, so the key to reviving it is to put the water back in. We’ve had success simply soaking the wilted leaves in ice water for 30 minutes. How do you revive old lettuce? Here’s how to do it: Step 1: Fill a large bowl (or better, a salad spinner) […]

Bolting is a perfectly natural process that occurs when the weather gets a bit too warm for our leafy greens. Lettuce is especially quick to go to seed in the right (or rather, wrong) conditions. Why is my lettuce growing upwards? Most lettuce varieties are cool season crops. When the hot weather comes, they send […]

Salad Garden Guide E-Book Learn the step by step to plant, set up, and grow your own organic salad garden and enjoy fresh greens at least six months each year. Red lettuces tend to last longer than green, and romaine varieties of the green will usually last longer than the softer butter-type varieties. How long […]

Like every living thing, lettuce needs to ensure its continued reproduction. This is why lettuces “bolt” – the plants begin to grow upwards, producing less leaves and eventually blooming. How do I stop my lettuce from bolting? 3 ways to delay bolting lettuce: 1) Grow bolt tolerant cultivars. Certain varieties of lettuce, spinach, radicchio, cabbage, […]

Even if you can’t grow it in the deep winter, you can still plant in late summer and have many a lettuce harvest in fall. How late in the season can you plant lettuce? If you are buying transplants (small plants) from a garden center or nursery, you may plant between 2 weeks before your […]

Keep Lettuce Plants Well-Watered Water evaporating from the soil provides natural cooling. Water your lettuce plants every day—and even more often if it is extremely hot and dry. The lettuce leaves are comprised mostly of water and will desiccate and wilt in strong sunlight and dry soil. How do I keep lettuce longer in the […]

Heat-tolerant lettuces: ‘Ice Queen (Reine des Glaces)’ (Summer Crisp) ‘Little Gem’ (Romaine) ‘Marvel of Four Season’ (Butterhead) ‘New Red Fire’ (Leaf Lettuce) ‘Parris Island’ Cos (Romaine) ‘Red Sails (Leaf Lettuce) ‘Rouge d’ Hiver’ (Romaine) Salad Bowl Blend (Leaf Lettuce) What is the most heat tolerant lettuce? Butterhead lettuce is usually known for being among the […]

Destroy infected plants immediately and keep lettuce foliage dry to minimize the spread of lettuce drop. Chemical controls aren’t usually necessary in the home garden. Instead, move the lettuce to a better garden bed, plant in a raised bed or grow it in containers with good drainage. How do you revive a dying lettuce? Lettuce […]

Most lettuce varieties thrive during cool weather, growing best when temperatures are above freezing but below 75 degrees Fahrenheit. Warmer temperatures slow leaf production and can cause wilting. What temp is too cold for lettuce? Lettuce may cope with light freezing and even one or two hard freezes, but once the thermometer reads 25°F or […]

1) Choose heat tolerant varieties Lettuce is a cool-season vegetable, but some varieties have been bred to better tolerate hot weather. Here are some of the most heat-resistant varieties that I’ve found: Romaine – Jericho, Parris Island. Batavian – Nevada, Sierra, Tahoe. Can lettuce get too hot? Lettuce may bolt in response to the stress […]

If you notice a clear pattern of light-green leaves in your vegetable garden, the first possibility to consider is nitrogen deficiency. Nitrogen is considered a limiting nutrient because plants need large amounts relative to the natural supply in most soils. Why are my plant leaves light green? The most common reason for leaves turning pale […]

Finally, tipburn is not harmful. In the case of commercial growers, it does reduce salability, but for the home grower, simply snip off the browning edges and consume as usual. What causes tip burn on lettuce? Cause of tipburn Tipburn is a feature of rapidly growing summer lettuce (but it can also occur in spring […]

Even with all the answers, there doesn’t appear to be a mention of recommended lux/lumen for lettuce. Approximately 80-100k will be adequate. Too much more than that (150-200k) and you’ll risk having too much which if I recall correctly can cause lettuce to flower (due to the heat concentration). How many watts of light do […]

For high-light plants like tomatoes you will want to achieve around 40 watts per square foot for optimal growth and fruit production. For low light plants, and small leafy plants like herbs and lettuce, you will only need to achieve about 25 to 30 watts per square foot. What kind of light does lettuce need […]

In many reports5,6,7,8, red–blue LEDs were demonstrated to be more suitable for lettuce cultivation. Red and blue lights have the greatest impact on plant growth because they are the major energy sources for photosynthetic CO2 assimilation. Can lettuce grow in artificial light? Keep lettuce plants in a location where they receive six to eight hours […]

Avoiding inner leaf “tip-burn” in lettuce Fertilize with adequate amounts of calcium. First check that adequate calcium is supplied in the nutrient program. Calcium foliar sprays. Modify the growing climate. Avoid antagonistic effects from other fertilizer nutrients. Avoid high soluble salts. Select resistant varieties. Why does lettuce get tip burn? Cause of tipburn Tipburn is […]

“The growth characteristic results for the two lettuce cultivars grown under various ratios of blue to red LEDs confirmed that red LED serves as a major light source that improves lettuce growth rate,” the authors said. What color light does lettuce like? In many reports5,6,7,8, red–blue LEDs were demonstrated to be more suitable for lettuce […]