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- Days to maturity
- 72–85 days
- Listed for
- United States
Overview
Ithaca was bred by G. Raleigh at Cornell University and released in 1969 as a crisphead that could take summer heat. It forms large, solid, tightly wrapped heads about 5 to 6 inches across with frilly green leaves that stay crisp rather than going rubbery or bitter, and it is slow to send up a seed stalk. Its main strengths are tolerance to tipburn and brown rib, the leaf-edge browning that hits icebergs under heat or uneven watering, and it also carries resistance to lettuce mosaic virus. Sow a quarter inch deep as soon as the soil can be worked, or in fall, thin to 10 to 12 inches, keep moisture steady while the head builds, and cut once firm.
Ithaca traits
- Large, solid, tightly wrapped crisphead, 5 to 6 inches across
- Frilly green leaves that stay crisp and mild
- Tolerant of tipburn, brown rib and summer heat
- Slow to send up a seed stalk
- Resistant to lettuce mosaic virus
- Bred by G. Raleigh, Cornell University, 1969
Good for
- Summer crisphead
- Sandwiches and salads
Compare with other head lettuce varieties
Blank cells mean there is no data on record. Select a variety name to open its page.
| Variety | Days to maturity | Growth habit | Type |
|---|---|---|---|
| Ithaca this page | 72–85 days | — | — |
| Webb's Wonderful | 72 days | — | — |
| Billabong | 70–79 days | — | — |
| Continuity Crisphead | 70 days | — | — |
| Igloo | 70 days | — | — |
| Rosa | 74 days | — | — |
| Yucaipa | 70 days | — | — |
Ithaca FAQ
What kind of head lettuce is Ithaca?
Ithaca was bred by G. Raleigh at Cornell University and released in 1969 as a crisphead that could take summer heat.
How many days to maturity is Ithaca?
Ithaca is listed at 72–85 days. Sowing and planting times are the same as for other head lettuce varieties, so check them in the head lettuce growing guide.
How does Ithaca compare with other head lettuce varieties?
Ithaca: 72–85 days. Similar head lettuce varieties include Webb's Wonderful (72 days), Billabong (70–79 days), Continuity Crisphead (70 days). The comparison table on this page lists days to maturity, growth habit and type side by side.
What is Ithaca good for?
Ithaca is grown for summer crisphead, sandwiches and salads.
Sowing, care and common problems
Sowing times, care and common problems are the same for every head lettuce variety, so they are covered once in the growing guide.
- Head Lettuce growing guide
- How to Grow Lettuce from Seed: Light, Soil Warmth and Summer Sowing
- Types of Lettuce: Crisphead, Butterhead, Romaine and Loose Leaf
- Why Lettuce Does Not Form a Head, and Why It Turns Bitter
- Lettuce Diseases and Pests: Keeping the Crown Dry
- When to Pick Lettuce and How to Cut and Come Again
- Lettuce Growing Calendar: Spring and Autumn Sowings
- All 30 head lettuce varieties
Source
Source: Cornell University (CALS Garden-Based Learning)
The text on this page is our own summary written from the published variety record, not a copy of it.