Today’s Reader Question comes from Kate in Virginia:
I need your ideas on growing salad throughout the summer. My lettuce bolts when it gets hot outside and my spinach just stops producing. Do you have any recommendations?
Great question Kate! The Mid-Atlantic gardening region warms up quickly in the summer and we’ve already experienced 90+ degree days and it’s only the first week of May. As you know, salad greens are cool season crops that enjoy temperatures above freezing but below 70 degrees. A few spikes in the thermometer won’t put an end to your salad greens but sustained hot temperatures will. So what can you do to keep the temperatures cooler?
Do you have any lightly shaded areas that you can use for growing salad? Not dense shade but a nice cool, lightly shaded spot. I know that my yard has several pockets of cooler growing areas…your landscape probably does too. Take advantage of these areas by tucking a few salad greens into empty spots.
Consider creating your own shade. There are several ways that you can accomplish this. Do you have any potted plants that you could place near your salad greens to cast shade on them? Or can you grow your salad greens in easily movable containers that you can move to shade when the temperatures climb?
Another way to create shade is with shade cloth. Shade cloth is used extensively in the nursery industry and it’s practical to use in your veggie garden. Create some hoops out of PVC and secure your shade cloth to it for instant shade. Here is a link to Gardener’s Supply where a 6′ x 12′ piece can be purchased for $27.95. If you have a nursery grower near you, give them a call to see if they have any shade cloth that they’d be interested in selling…often times, they have scrap pieces lying around that are too small for their beds but may be perfect for yours.
Let’s talk about plant selection. Try to find an heirloom seed supplier that is located in your gardening region…they may have varieties of salad greens that have been selected to perform better in the heat. Since you’re in Virginia, take a look at Southern Exposure Seed Exchange. They’re located in Louisa and have a variety of romaine lettuce, Jericho, that grows well in our summer heat. If you’re looking for spinach that will keep on keeping on, try Red Malabar spinach. It’s a vining type that needs to be trellised so it will take up less room in the garden too. Southern Exposure recommends growing them on your pea trellises…as the peas finish growing, the Red Malabar spinach will take over where they left off.
I’m sure that other Mid-Atlantic Gardening readers have other creative ideas for growing salad in summer heat. Please leave a comment below or e-mail me at email@example.com. If you enjoy being part of the Mid-Atlantic Gardening community, join our e-mail list (upper right hand corner of this page), become a fan on Facebook and follow me at Twitter. Happy gardening!