Lettuce seed comes from lettuce plants. Lettuce plants produce a flowering stem, known as a "bolt", which the plant sends up from the center of the plant when the weather becomes hot. The bolt produces flowers, that once pollinated, dry up and produce seed.Continue Reading
Once a lettuce plant starts to bolt and produce flowers, the leaves are no longer good to eat, as they taste bitter. It is best to select one or two plants to produce seeds, and mark them early in the season.
Lettuce is a self-pollinating species, meaning that it does not require another plant to produce viable seed. However, given close proximity to another plant, it can cross-pollinate. Therefore, if trying to produce seed, it is best to cover the seed heads of different varieties to prevent cross-pollination.Learn more about Botany
Lettuce comes from the leaf of the plant. Head lettuce plants grow large rosettes of leaves that become more tightly compact as the plant matures. Loose leaf lettuce plants grow with many leaves loosely bunched together.Full Answer >
Lettuce generally takes 45 to 55 days to mature after planting the seeds. Heading varieties of lettuce, such as romaine, take longer to mature. Butterhead and looseleaf lettuce leaves can be harvested at essentially any time in the growth process.Full Answer >
Water lettuce is a free-floating subtropical plant found in still, fresh waterways such as farm dams, lakes and creeks. Like other floating aquatic plants, it has large, thick leaves that help in withstanding the weather and water movement. The leaves also have tiny hairs that offer more buoyancy.Full Answer >
A pumpkin begins life as a seed, which holds an embryo. If the seed is planted and watered, it germinates into a seedling, which grows into a vine with male and female flowers. If the female flower is successfully pollinated, a fruit grows from the ovary.Full Answer >