By Amy Grant, Gardening Know How
Photograph courtesy of Gardening Know How
There are five groups of lettuce categorized by head formation or leaf type. Each of these lettuce varieties offers a unique flavor and texture, and growing different types of lettuce will be a surefire way to generate interest in eating a healthy diet. Let's learn more about the different lettuce types.
Lettuce Types for the Garden
The five varieties of lettuce that can be grown in the garden include the following:
Crisphead or Iceberg
Crisphead lettuce, more commonly known as iceberg, has a tight head of crisp leaves. Often found in the local salad bar and a virtual staple in the delicious BLT, it's actually one of the more difficult lettuce varieties to grow. This lettuce variety is not fond of hot summer temps or water stress and may rot from the inside out.
Start iceberg lettuce via seed directly sown 18-24 inches apart or started indoors and then thinned to 12-14 inches between heads. Some iceberg lettuce varieties include: Ballade, Crispino, Ithaca, Legacy, Mission, Salinas, Summertime and Sun Devil, all of which mature in 70-80 days.
Summer Crisp, French Crisp or Batavian
Somewhat between the lettuce types Crisphead and Looseleaf, Summer Crisp is a large lettuce variety resistant to bolting with great flavor. It has thick, crisp outer leaves, which can be harvested as a looseleaf until the head forms, while the heart is sweet, juicy and a bit nutty.
Different types of lettuce for this variety are: Jack Ice, Oscarde, Reine Des Glaces, Anuenue, Loma, Magenta, Nevada and Roger, all of which mature within 55-60 days.
Butterhead, Boston or Bibb
One of the more delicate varieties of lettuce, Butterhead is creamy to light green on the inside and loose, soft and ruffled green on the exterior. These different types of lettuce may be harvested by removing the entire head or just the outside leaves, and are easier to grow than the Crispheads, being more tolerant of conditions.
Less likely to bolt and rarely bitter, the Butterhead lettuce varieties mature in about 55-75 days, and are spaced similarly to the Crispheads. These varieties of lettuce include: Blushed Butter Oak, Buttercrunch, Carmona, Divina, Emerald Oak, Flashy Butter Oak, Sanguine Ameliore, Summer Bibb, Tom Thumb, Victoria, and Yugoslavian Red and are extremely popular in Europe.
Romaine or Cos
Romaine varieties are typically 8-10 inches tall and upright growing with spoon-shaped, tightly folded leaves and thick ribs. Coloration is medium green on the exterior to greenish white inside with the outer leaves sometimes being tough whilst the interior foliage is tender with wonderful crunch and sweetness.
'Romaine' comes from the word Roman while 'Cos' is derived from the Greek island of Kos. Some different types of this lettuce are: Brown Golding, Devil's Tongue, Dark Green Romaine, De Morges Braun, Hyper Red Rumple, Little Leprechaun, Paris Island Cos, Valmaine, and Winter Density, all of which mature in around 70 days.
Looseleaf, Leaf, Cutting or Bunching
Last but not least is one of the easiest types of lettuce to grow — the Looseleaf varieties of lettuce, which form no head or heart. Harvest these varieties either whole or by the leaf as they mature. Plant at weekly intervals starting in early April and again mid-August. Thin Looseleaf lettuce to 4-6 inches apart. Looseleaf varieties are slow bolting and heat resistant.
A wide variety of colors and shapes guaranteed to stimulate the eyes and the palate are available in these lettuce varieties: Bijou, Black Seeded Simpson, Bronze Leaf, Fine Frilled, Gold Rush, Green Ice, Oakleaf, Perilla Green, Perilla Red, Merlot, Merveille De Mai, Ruby, and Simpson Elite, which will all mature within a 40-45 day time period.
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