Germination
7–10 days
Fast to sprout in warm, evenly moist mix.
Harvest
25–35 days
Pick baby leaves early and harvest again.
Temp
55–75°F (13–24°C)
Cool to mild conditions work best.
Light
Bright light, 6–8 hrs/day
A sunny window usually works well.
Quick Start (30 seconds)
Keep it simple: steady moisture, bright light, and the right sowing depth.
Prep
Fill pots or trays with evenly moistened, loose seed-starting mix.
Sow
Sow seeds about 2× their thickness; shallow sowing works best.
Water
Keep the mix evenly moist throughout—damp, not dripping or soggy.
Light
Give 6–8 hours of bright light from sun or grow lights.
Thin
Thin seedlings early and keep the strongest after sprouting.
Tip: Warmth, bright light, and evenly moist seed-starting mix help most varieties sprout in about 7–10 days.
Common Mistakes
Keep the mix evenly moist throughout, not just on top.
Thin early so leaves have space to size up.
Lettuce grows best in cooler, brighter conditions.
Ready to grow the full kit?
Shop the full 6-Pack for Leaf Lettuce, Arugula, Kale, Basil, Mint, and Chives.
Heirloom · open-pollinated · batch-tested for germination
Frequently Asked Questions
Yes. It sprouts quickly, grows fast, and is easy to harvest young.
In warm conditions, leaf lettuce often begins sprouting in about 7–10 days.
Yes. Bright light and steady moisture are usually enough to get started.
You can start cutting baby leaves once plants are well established.
Check for dry mix below the surface, crowding, or excess heat.