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TL;DR
Lettuce is the easiest vegetable for a beginner: shallow roots, tiny space needs, and baby leaves 30 days from sowing. Grow it cool (10-21°C), keep it moist, and sow a short row every two weeks instead of one big batch — a whole packet sown at once means a glut, then bolted bitter plants. Slugs are the main enemy; heat-triggered bolting is the second.
Key facts
- Domesticated in ancient Egypt over 4,500 years ago — tomb paintings show a tall romaine-like lettuce that was originally grown for its oily seeds.
- Lettuce seed is light-sensitive: it germinates best barely covered, and goes dormant in soil warmer than about 25°C.
- Loose-leaf types can be cut 2.5cm above the crown and will regrow for 2-4 more harvests ('cut and come again').
- The milky sap that gives Lactuca its name (Latin lac, milk) turns leaves bitter when plants bolt.
30 days
sowing to baby leaves
45-70 days
sowing to full heads
Every 2 weeks
succession sowing rhythm
$2-4
seed packet, US
Care requirements#
| Plant type | Outdoor cool-season annual salad green |
| Growing medium | Fertile, moisture-retentive soil; thrives in shallow containers (15cm deep is enough) and window boxes |
| Light needs | Full sun in cool weather; afternoon shade keeps it going in warm spells |
| Sowing season | Early spring through autumn in temperate climates, skipping high summer; winter is the season in hot climates like the Indian plains |
| Water frequency | Little and often — shallow roots dry out fast; even moisture keeps leaves sweet and crisp |
| Temperature range | Best at 10-21°C (50-70°F); germination stalls above 25°C soil and plants bolt in sustained heat |
| Spacing | Baby leaf: broadcast thinly. Heads: 20-30cm apart depending on variety |
| Fertilizer | Compost-rich bed or a light nitrogen feed; fast unchecked growth is the whole game |
| Soil pH | 6.0-7.0 |
| Support needs | None |
| Companion plants | Carrots, radishes, strawberries; tall crops like beans give useful summer shade |
| Toxicity | Edible and non-toxic to pets; bolted plants turn bitter but harmless |
Growth & propagation#
| Days to harvest | 30 days for baby leaves; 45-55 for loose-leaf heads; 60-70 for crisphead/romaine |
| Yield | 2-4 regrowth cuts per loose-leaf plant, or one head per plant |
| Harvest method | Cut loose-leaf types 2.5cm above the crown in the morning (crispest); cut heads whole at the base |
| Edible parts | Leaves; the bolted stem is edible but bitter (celtuce varieties are bred for the stem) |
| Propagation methods | Direct-sown seed or module-raised transplants; barely cover the seed — it needs light |
| Pruning needs | None beyond harvesting |
Common problems & troubleshooting#
| Symptom | Likely cause | Fix |
|---|---|---|
| Seedlings razed overnight, slime trails nearby | Slugs and snails — lettuce is their favourite food in the entire garden | Beer traps, evening torch patrols, copper tape around containers, or wildlife-safe ferric phosphate pellets around sowings |
| Plant stretches into a tower and leaves turn bitter | Bolting from heat, long days, or drought stress | Harvest at once; sow bolt-resistant varieties, give afternoon shade in summer, and never let the bed dry out |
| Seed sown in summer never comes up | Thermodormancy — lettuce seed shuts down above ~25°C soil | Germinate in trays indoors in the cool, or pre-chill seed and sow in the evening into shaded, watered soil |
| Outer leaves rot at the base; fluffy grey mould | Grey mould (botrytis) or bottom rot in cool, wet, crowded beds | Space plants properly, water the soil not the leaves, remove affected outer leaves promptly |
| Colonies of pale insects on undersides of leaves | Lettuce aphids (some colonise the heart where sprays can't reach) | Blast off with water and wash harvested heads; grow aphid-resistant varieties (many modern ones carry Nasonovia resistance) |
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A fresh row every two weeks
Sodate schedules your succession sowings so salad arrives in a steady stream instead of one bolting glut.
Seasonal care#
Spring
Main sowing season — start every 2 weeks from early spring; protect seedlings from slugs.Summer
Sow bolt-resistant types in afternoon shade; germinate seed indoors during heat waves.Autumn
Excellent second season; late sowings under fleece crop into early winter.Winter
Hardy varieties overwinter under cover in temperate zones; peak season in hot-climate plains (including much of India).Varieties & cultivars#
| Variety | Distinguishing trait | Note |
|---|---|---|
| 'Salad Bowl' / oakleaf types | Loose-leaf, cut-and-come-again, very slow to turn bitter | Best beginner choice |
| 'Little Gem' | Mini romaine, sweet crunchy hearts, tight spacing | Great in containers |
| 'Butterhead' (e.g. 'Tom Thumb') | Soft, folded heads with buttery texture | Quick and compact |
| 'Iceberg'/crisphead types | Dense crunchy heads, longest to mature, fussiest in heat | Hardest type for home growers |
| 'Lollo Rossa' | Frilly red leaves, ornamental and edible | Colour deepens in cool sun |
Buying checklist#
- Seed is the better buy — a $3 packet holds hundreds of plants' worth
- Pick loose-leaf or 'Little Gem' types first; iceberg is the hardest to grow well
- Look for bolt-resistant varieties for late-spring sowings
- For seedlings: compact green plants, no yellowing, roots not matted
- Buy a mix packet for a full salad range from one sowing
Pricing by region#
| Region | Price range | Typical unit | Basis |
|---|---|---|---|
| US | $2 – $4 | Seed packet (500-1000 seeds) | Garden centre + seed catalogue retail |
| UK | $2 – $5 | Seed packet or plug strip | Garden centre retail |
| India | $0.12 – $0.6 | Seed packet | Online seed retail + urban nurseries |
| Australia | $2 – $5 | Seed packet or seedling punnet | Nursery + garden centre |
| Canada | $2 – $4 | Seed packet | Garden centre retail |
What drives the price: Pelleted seed for precision sowingAphid/bolt-resistant hybridsOrganic certificationMixed-variety packets
USD figures are approximate conversions for comparison; switch the dropdown to see each region's actual local-currency listing price.
Often confused with#
Wild lettuce (Lactuca serriola) — Lettuce's spiny wild ancestor, a common weed — upright with prickly leaf midribs and very bitter sap; don't confuse garden volunteers with it.
Endive and escarole (Cichorium endivia) — Chicory-family salads often sold beside lettuce; distinctly bitter, frillier or broader leaves, and much more heat- and cold-tolerant.
Where it's actually grown#
Most of the world's lettuce seed is produced in dry-summer regions — California's central valleys, southern France, and Tanzania — where seed heads can mature without rain damage; retail brands then pack and distribute it globally.
Import & biosecurity restrictions#
| Region | Note |
|---|---|
| Australia | Seed imports require permits and phytosanitary certificates; domestic seed widely available. |
| US | Domestic seed sale unrestricted. |
| UK | Seed freely available; lettuce is a mainstay of UK allotments most of the year. |
| India | No restriction; lettuce is a growing urban/winter crop, with salad-mix seed sold widely online. |
| Canada | Home-garden seed packets clear customs without issue. |
Similar plants
Did you know?
Lettuce was sacred to the ancient Egyptian fertility god Min — tomb reliefs from 4,500 years ago show tall romaine-type lettuces presented as offerings, prized because the plant's milky white sap was seen as a symbol of potency. The salad bowl came millennia later; the first lettuces were grown for seed oil and ritual.
Frequently asked questions
How long does lettuce take to grow?
Baby leaves in about 30 days, loose-leaf heads in 45-55, and dense crispheads like iceberg in 60-70. Cut-and-come-again picking starts earliest.
Why is my lettuce bitter?
The plant has bolted or is heat-stressed — the milky sap that rises with the flower stalk is bitter. Harvest before bolting, keep soil moist, and give afternoon shade in warm weather.
Will lettuce regrow after cutting?
Loose-leaf types will: cut 2.5cm above the crown and they regrow for 2-4 more harvests. Head types (iceberg, romaine) are a single harvest.
Why won't my lettuce seed germinate in summer?
Lettuce seed goes dormant above about 25°C soil. Start it in trays somewhere cool, or pre-chill seed and sow into shaded, pre-watered soil in the evening.
Can I grow lettuce in containers?
Yes — it's one of the best container crops. A 15cm-deep pot or window box in cool sun, kept evenly moist, grows perfect loose-leaf salads.
