Growing lettuce in zone 7a in fall

Romaine lettuce grows fast here in fall. Once the worst summer heat is gone, it can go from a little transplant to salad-sized leaves surprisingly quickly. This is one of my favorite times to grow it.

And yes, I grow lettuce partly because I like to eat. Fresh romaine is crunchy and sweet. Grocery store lettuce is often sad by comparison. I am picky, especially when Caesar salad is involved.

Fall lettuce likes cooler weather

Lettuce is a cool-season crop. In zone 7a, fall gives it a nice window after summer heat and before hard freezes settle in. Your timing will shift with your zone and local weather, so use your first average frost date as a guide rather than treating any planting date as gospel. The interwebs help with that.

Start small. Direct sow seeds or set out young transplants, then keep the soil evenly watered during establishment. Drip irrigation makes this easy in my beds. A layer of straw helps keep the soil from drying out so fast and cuts down on weeds.

The young lettuce in these photos still has growing to do. At this stage I watch for steady new leaf growth, slug damage and anything chewing holes. Gardens need a daily walkthrough. Five minutes catches a lot before it turns into a mess.

Harvest romaine your way

You don't have to wait for a perfect grocery-store head. Pick outer leaves and leave the center growing, or let the plant form a fuller head and cut it near the soil line. I do whatever makes sense for dinner.

Cooler nights tend to produce the texture and flavor I want from romaine. Heat is another story. Lettuce can turn bitter and bolt when temperatures climb, which is why I don't fight it through the hottest part of summer. There are crops better suited to that abuse.

A lightweight row cover can buy some time when colder nights arrive. It can protect lettuce from light frost and gives you a longer fall harvest. Check under it regularly for insects and airflow issues rather than tossing it over the bed and forgetting about it.

Keep planting a little at a time

For a steadier supply, sow or transplant another small batch every week or two during your planting window. This works better for my kitchen than planting fifty heads at once and suddenly owning a lettuce farm I never asked for.

Fall lettuce doesn't need to be complicated. Good soil, consistent water, cooler temperatures and regular harvesting will get you a long way. Then wash it, dry it well and drown it in Caesar dressing. That's the point.