Green Towers

Lettuce

Zone 4b Save Garden

🌱 58d to harvest Rosette

Crisp, cool, and vividly refreshing—Green Towers forms tall, upright heads that feel like a fresh-cut bouquet of green. The leave…

Crop Dates

Milestone	Date
Start Indoors	Apr 15th
Last Frost	May 13th
Transplant / Sow Outdoors	May 13th
Harvest Begins	Jul 10th
Harvest Ends	Sep 27th

Crop Details

Trait	Value
Days to Maturity	58
Sun Requirements	Part Sun
Growth Habit	Rosette
Support Needed	None
Planting Depth	Surface
Germination Temp (°F)	55
Min Soil Temp (°F)	40
Min Night Temp (°F)	35
Harden Off (days)	6

Recommended Companions

Danvers Half Long Carrot

Heshiko Bunching Onion Onion

Frequently Asked Questions

What pest or disease commonly affects Lactuca sativa (leaf lettuce) and how do I treat it?

Watch for lettuce aphids and slugs/snails, which are common in cool, moist lettuce beds and can chew leaves or leave sticky residue. Rinse aphids off with a strong jet of water and remove heavily infested leaves; for slugs, hand-pick at dusk and set copper tape or bait stations labeled for slugs in edible gardens. Also check for downy mildew (yellow-green patches with fuzzy growth underneath leaves) and remove affected leaves early to improve airflow around plants.

How often should I water Lactuca sativa during the main growing phase?

Keep the root zone evenly moist from transplanting through head/leaf expansion, aiming for soil that stays damp 1–2 inches down but never waterlogged. In most home gardens, this usually means watering about 2–3 times per week during mild weather, increasing to more frequent watering during warm spells. Mulch lightly to reduce surface drying so the plants don’t get stress that triggers bitterness or premature bolting.

How can I tell when green towers lettuce (Lactuca sativa) is ready to harvest?

Harvest when the plants reach full size and leaves feel crisp and substantial, typically about 58 days from sowing for this type. For the best texture, pick in the morning when leaves are turgid and avoid harvesting after heat has built up. If you notice the center starting to elongate or flower stalk formation, harvest immediately—lettuce quality drops fast once it begins bolting.

Crisp, cool, and vividly refreshing—Green Towers forms tall, upright heads that feel like a fresh-cut bouquet of green. The leaves are tender yet sturdy, with a clean crunch and a sweet, mild flavor that shines in fresh salads and bright summer platters. Ideal for gardeners who want dependable, Romaine-style structure at about 58 days, with heads that hold their shape beautifully for standout garden-to-table appeal.

Sowing Tips

Transplant Conditions

Wait until soil reaches 40°F and nights stay above 35°F before moving outdoors. Harden off for 6 days first.

Expert Note

Keep romaine evenly moist and avoid heat stress near maturity by aiming to transplant right around the last frost and shading during the hottest weeks.