The brisk growing pace and sweet buttery flavor make buttercrunch (aka butterhead) lettuce a popular pick among loose-leaf varieties. The plants prefer full sun, but they will benefit from partial afternoon shade in warmer environments. It grows best in loamy, neutral soil. If your soil drains poorly, add sand or perlite. Water the soil often enough to keep it moist, but not damp or soggy. Mulch can help reduce watering frequency.

Buttercrunch lettuce is threatened by the same garden pests as other lettuce types, including cutworms, slugs, aphids and whiteflies. You should also beware of lettuce mosaic virus and assorted mold or mildew diseases. If plants are struck, the best option is usually to remove them so the problem doesn’t spread.

Because it’s a cool-season crop, most growers can start butterhead lettuce outdoors. However, indoor starting four weeks before the last expected frost will allow succession planting or an earlier harvest. Fill a tray or flat with a good seed-starting mix, moisten the soil and gently press the seeds in. Keep the container in an area with lots of indirect light and water as needed. Germination normally occurs in 7-10 days.

You can direct-sow or transplant buttercrunch lettuce whenever the soil is between 45 and 65 degrees. Because of its short growing schedule, spring or fall planting is acceptable in most growing zones. Avoid placing lettuce next to tall or climbing plants, as they will block sunlight. Eight-inch plant spacing and 12-15-inch row spacing should be sufficient.

Choose container planting if you have limited in-ground space or want more control over growing conditions. Pots should be at least 6-8 inches deep and wide enough to accommodate four-inch plant spacing. (It can be tighter in containers since plants aren’t competing with weeds.) Use an all-purpose or vegetable-formulated potting soil.

As a leafy plant, this lettuce benefits from frequent feedings of a balanced or high-nitrogen fertilizer. Add compost or granular fertilizer when planting your lettuce; fish emulsions are another great choice for nitrogen content. Reapply fertilizer every 2-3 weeks throughout the growing cycle. If plants are growing slower than normal, it’s a sign you need to increase fertilizer frequency. Soil testing will also provide crucial information.

Lettuce is an annual plant but can be grown almost any time of year with the right precautions. Lower growing zones will require mulch, frost cloths, row covers or other methods to protect plants against a hard frost. In regions with mild winters, buttercrunch lettuce can be grown as normal with no special treatment.

The only pruning you need to do is remove any leaves that are damaged or touching the ground, as these are the most susceptible to pests and diseases. Beyond this, simply harvest leaves frequently, as more will grow in their place.

Buttercrunch lettuce will take 45-60 days to mature. Gently remove the outermost leaves with sharp scissors. If you want to harvest a full head, use a knife to cut the plant at the base. Spring-planted lettuce can be left to bolt and flower in the summer, giving you seeds to collect for the next season.