Days to emergence: 3 to 10 – May germinate in 3 days at 80 F to 90 F. Germination may take 10 days or longer at cooler temperatures. Maintenance and care: Cucumbers are very sensitive to cold.

All seeds need water, oxygen, and proper temperature in order to germinate. Some seeds require proper light also. Some germinate better in full light while others require darkness to germinate. When a seed is exposed to the proper conditions, water and oxygen are taken in through the seed coat.

Each factor is just as important as the other, because without them seed germination is impossible. Moisture is an important factor because without water, a plant will not survive. A seed will not grow into a plant without water.

1 to 2 weeks

10 days

2 to 10 days

If you want an earlier crop, however, you can start seeds indoors 4 to 6 weeks before your last spring frost date. Some lettuce seedlings will even tolerate a light frost. Lettuce can be sown after soils reach 40°F (4°C), though seeds germinate best at 55 to 65°F (13 to 18°C).

60 to 65°F.

Yes, lettuce leaves will grow back after cutting but only if proper care and technique are used when cutting as all vegetable lettuce follow similar annual vegetable growth cycles.

By cutting the plant at the base and leaving the roots to grow, new leaves will sprout, giving butterhead lettuce a cut-and-come-again quality. It’s important to harvest butterhead lettuce before the plants bolt (produce flower stalks).

Most lettuce varieties are cool season crops. When the hot weather comes, they send up tall stalks that will flower and set seed. You’ll notice that the leaves begin to taste bitter around the same time the stalks elongate. This is called bolting.

Why Is My Romaine Lettuce Bolting? Romaine lettuce, like other lettuce types, likes cool weather. If you’re seeing that your lettuce is suddenly getting tall and starting to flower, you’re probably well into the warm days of summer. Bolting isn’t just a phenomenon that occurs with lettuce.

ANSWER: Lettuce should be watered not daily but instead about twice a week, or once every four or five days, for most of its growing period. It will need to be watered lightly but more frequently for the first two weeks after planting, perhaps daily, depending on your climate.

The key to lettuce production is supplying moderate but almost constant water, especially during hot weather. Unless there is regular rainfall, lettuce must be watered deeply at least once a week- more frequently during periods of drought. Mulch with a layer of compost or clean straw to help the soil retain moisture.