There
are 4 types of lettuce, and each of them have the same basic growing requirements.
Soil P
H 6.0 to 7.0 - Sow seed in early Spring, as soon as soil can be worked. This occurs
about four weeks before last expected Spring frost. Plant 1/8 inch deep
in a wide row, 6 inches apart in all directions. Make sure soil contains
a good supply of nitrogen for good leaf production. Lettuce may be started inside
and transplanted into the garden for an earlier crop. Lettuce needs cool
weather to do well. In warm weather, lettuce turns bitter and quickly goes
to seed. Plant every two weeks for a continuous harvest all summer long.
Make early plantings in full sun.
As
soon as the weather warms up, start planting in partial shade. During the
summer, a good spot to grow lettuce is against the house on the side that receives
the morning sun, or in the shade of taller vegetables in the garden. Weed
frequently, as lettuce has shallow roots and can't compete with deep rooted weeds.
Make sure
to plant lettuce in the fall, as it is extremely productive at this time of the
year. Lettuce can be grown in containers, and does well in one with a soil
depth of 9 to 12 inches.
LEAF
LETTUCE Leaf lettuce has the most varieties and is the easiest
to grow. It produces loose bunches of leaves instead of a solid head.
Leaf lettuce comes in many colors and textures and should be included in everyone’s
garden. It is quick growing and can be grown in warmer weather than the
other types. When harvesting, cut the leaves off an inch or two above
the ground, and the plants will send out new leaves for a second crop. Try Black
Seeded Simpson, Salad Bowl, Early Curled Simpson, Oak Leaf or Prize Head.
BUTTERHEAD
LETTUCE This lettuce forms small, tender, open heads that have
a creamy, "buttery" center. It matures a little later than leaf lettuce and has
a milder flavor. Include in your garden for some variety in your salads.
Try Buttercrunch, White Boston, Tom Thumb (our favorite), Little Gem or
Big Boston.
ROMAINE Also called Cos, this lettuce has upright clusters of big, crunchy leaves.
The leaves are very flavorful and exceptionally crisp. This lettuce matures
in 70 to 85 days. A must variety for any salad lover. Try Paris
White Cos.
CRISPHEAD This is the familiar "head" lettuce found in grocery stores.
This variety takes the longest to grow and can be the most temperamental. Needs
to mature in cool weather in order to form tight, compact heads. In many parts
of the country, it is best grown as a fall crop. It is ready to harvest
when the heads are solid and the outer leaves turn a yellowish green. Try Wakefield
Crunch, New York #12, Great Lakes and Iceberg.
PESTS Various insects can be a problem when growing lettuce. Aphids, cabbage
loopers, flea beetles, leafhoppers and leaf miners just to name a few. Since
lettuce does not need to be pollinated in order to produce a crop, all of
these insects can be stopped by growing your lettuce under a floating
row cover.
Disclaimer:
Throughout this website, statements are made pertaining to the properties and/or
functions of food and/or nutritional products. These statements have not been
evaluated by the Food and Drug Administration and these materials and products
are not intended to diagnose, treat, cure or prevent any disease.