All posts by Jordan Charbonneau

New Varieties for 2024!

December 14, 2023 Jordan Charbonneau Leave a comment

New year, new seeds! We’re heading into 2024 by offering a few new varieties on our catalog and website. Some of these are heirlooms that have been shared with us, like the Turkish Cekirdegi Oyali Watermelon. Others are new varieties like Xiye Butternut Squash that have recently been bred for features like disease resistance, climate adaptability, and flavor. Not all of our new varieties are available on the website yet, but these fourteen are, so be sure to grab them while our seed supplies last!

Adirondack Blue Seed Potato

This new variety from Cornell University will quickly become one of your garden staples. Adirondack Blue produces moist, stunning, blue-skinned, and blue-fleshed potatoes. The vigorous plants support good yields.

Ashwagandha (Withania somnifera)

Ashwagandha is an important herb in Indian traditional medicine. Herbalists use the roots to strengthen the immune system, increase resiliency to stress, and relieve insomnia. You can also use the berries as vegetable rennet.

Ashwagandha is native to the dry regions of India, the Middle East, and North Africa, where it grows to be a small shrub. It’s in the solanacea or nightshade family, like tomatoes and peppers. In the U.S., it’s only perennial to USDA zone 10 but can be grown as an annual in temperate regions.

Appalachian White Wheat

Homescale grain production is easier than you think, especially with this excellent variety from North Carolina State University. Appalachian White Wheat has high protein (14%) and mild flavor.

It’s a semidwarf variety with good disease resistance to most wheat diseases of the Mid-Atlantic. ½ pound sows 125-250 square feet as a cover crop or 250 square feet as a grain crop.

Biquinho Spice Pepper (C. chinense)

These little Brazilian Peppers are relatively mild and delicious pickled. In Brazil, they’re a popular snack in botecos or neighborhood bars and are often served with sausage or fish. They get their name, which means “little beak” in Portuguese, from their inverted tear-drop shape.

Biquinho Spice Peppers grow about 2 feet tall and are highly branched. The peppers are small, about ½ by ¾ inches, and relatively mild. Their harvests are more likely to taper off than with other Chinese types.

Cekirdegi Oyali Watermelon

Cekirdegi Oyali is a Turkish heirloom introduced to the U.S. by our friends at Two Seeds in Pod. This variety produces small melons, about 5 pounds each, with sweet orange flesh.

One of the joys of saving seeds from this variety is its unique-looking seeds, which look like they have been carved. As they dry, the black seed casing cracks, revealing the white seed inside.

Fiesta Trailing Mixed Color Nasturtium (Tropaeolum majus)

With a stunning mix of yellow, orange, rose, and crimson blooms, Fiesta is a must-have for any nasturtium lover. These plants produce long trailing vines of attractive, edible leaves and flowers with watercress-like flavor that works well for salads and garnishes.

Green Finger Cucumber

Green Finger is an excellent variety for market and home growers bred by Cornell University. It produces crisp, thin-skinned cucumbers 8 to 10 inches long. They have great flavor and productivity and consistent fruits.

Green Finger shows excellent disease resistance to powdery mildew, papaya ring spot virus, watermelon mosaic virus, zucchini yellow mosaic virus, and high tolerance to angular leaf spot. It matures in sixty days.

Enjoy them right off the vine as you stroll through your garden, in a salad, pickled, or as an addition of crisp freshness to your cool summer drink!

Pink Zinnias

Who doesn’t love zinnias? These easy-to-grow flowers are staples for all kinds of flower gardens, so we jumped at the chance to add a new zinnia to the listings.

Pink Zinnias produce a smorgasbord of pink flowers on tall plants, including a lovely mix of single, double, and semi-double flowers.

Purple Viking Potatoes

Purple Viking has great looks and flavor. These attractive potatoes have purple skins with pink splashes and bright white flesh. They have great flavor, too, and are excellent mashed or baked.

Purple Viking produces big potatoes on compact plants. Their productivity and beauty make them an excellent choice for market gardeners.

Quan Yin Batavian Lettuce

This Batavian-type lettuce produces lovely, big, dense heads. Quan Yin grows well in the summer heat, germinating more easily in hot soil than other lettuce types. It’s cold tolerant too and overwinters well in mild winters.

Our seed stock for this variety came from the wonderful folks at Siskiyou Seeds.

Queensland Romaine Lettuce

This Australian heirloom has great heat resistance and is a favorite for growers in Florida and the Deep South! It features tasty, large, light green leaves.

Our seed stock for Queensland Romaine came from the amazing seed keeper and artist Melissa DeSa. You can find her on Instagram @southern_seed_queen.

Showstar Melampodium

Looking for easy-to-grow plants that tolerate heat, humidity, drought, and poor soil? Look no further! Showstar Melampodium produces mound-shaped plants with many 1 ¼ -inch yellow flowers. It flowers most heavily in the fall and continues until frost, without deadheading!

Spinners Ivory Cotton

This new cotton variety was bred by Cindy Conner through Homeplace Earth’s Cotton Project right here in Virginia. She bred Spinners Ivory from a cross of green and brown varieties.

Cindy named this variety for its naked seeds (no lint), making it easy to remove by hand or spin right off the seed. It has a short staple and off-white color.

If you’re interested in cotton or fiber arts, we highly recommend you read Cindy’s book Homegrown Flax and Cotton: DIY Guide to Growing, Processing, Spinning & Weaving Fiber to Cloth.

Xiye Butternut Squash (C. moschata)

This new winter squash was bred by Care of the Earth Community Farm in Corryton, Tennessee, and named in honor of climate activist Xiye Bastida. This variety was bred from a cross between San Jose Mountain Club Squash (from Costa Rica) and Waltham Butternut.

This great-tasting squash was bred to resist downy mildew and tolerate variable and unpredictable climatic conditions. The plants are fully vining and very productive. Xiye Butternut is sweet and nutty and has a caramel or butterscotch flavor when roasted, and the exterior color is a deep tan.

Selection is ongoing for butternut shape, size (selecting for 4 lb. size), smaller seed cavity, dry matter content, flavor, and ability to store for at least three months. Xiye is currently in its 7th generation; expect a bit of variability for all characteristics.

Adding new varieties to Southern Exposure Seed Exchange and preserving old favorites is always a careful balancing act. Whether heirlooms or newly bred varieties, these fourteen crops have earned a place on our website and catalog for their delicious flavor, hardiness, disease resistance, beauty, and productivity. Consider adding one of these new varieties to your garden this season, and be sure to let us know how it goes!

Garden Advice

Tips for a Drought & Heat-Tolerant Garden

December 7, 2023 Jordan Charbonneau Leave a comment

Many of you probably saw that the USDA released a new hardiness zone map just a couple of weeks ago. Some of you may have gotten a further surprise, glancing at the map to see that your hardiness zone had changed! This little jolt may have helped confirm signs of climate change you’ve already noticed in your garden, like milder winters, hotter summers, erratic weather patterns, or earlier budbreak. While we can’t totally predict the effects of a changing climate, we do expect to see generally hotter, drier summers, and many of our customers do too. Here are a few ways to prepare for a heat-tolerant garden this season.

Grow Drought Tolerant Varieties

Many of our old heirlooms come from a time when irrigation on a small family farm was non-existent. When you look at many old Southern heirlooms like ‘Iron and Clay’ Southern Peas, Texas Gourdseed Corn, and Genuine Cornfield Pole Beans, you’ll find varieties that have tolerated heat and drought for years without much assistance.

Grow Short-Season Crops

One way to beat the heat is to avoid it. Crops that are fast-maturing stand a better chance of producing before they even have to face extreme temperatures or drought. Short-season bush beans are a great crop for this strategy. Varieties like ‘Provider’ can mature in as little as 48 days. In hot areas, crops like these should make up a good portion of your spring garden and will allow you to get another round in autumn.

You can also opt for smaller versions of some of your typical slow-maturing favorites. ‘Golden Midget’ has become one of our favorite small watermelons for its ability to produce in just 72 days. ‘Table Queen’ winter squash, which produces in just 80 days, is another great option, especially when compared to varieties like ‘Big Max,’ which takes 115 days to mature.

Plant Perennials

Many perennials are quite drought-hardy once established. Their long lives allow them to develop deep tap roots and extensive root systems. This includes many fruit and nut trees and perennial herbs and vegetables like figs, almonds, horseradish, and asparagus. They may require watering initially, but once established, they should do pretty well on their own, especially if you keep them mulched.

Many of our native wildflowers, like Rudbeckia, echinacea, and Early Horse Gentian, have more extensive, deep root systems than many ornamental flowers. Opting for more species like these can reduce watering and maintenance in flower beds.

Use Companion Planting and Intercropping

The classic example of companion planting is the Three Sisters Garden, where corn, beans, and squash are interplanted. In this example, the squash vines help shade the soil for the corn and beans, keeping it cool and moist.

While this example has become famous, Native Americans often interplanted other crops like sunflowers and amaranth, too, and you can use the same principles with other crops. Cucumbers can be grown beneath sorghum, roselle, or other tall crops to shade the soil. Bean tunnels or trellises can create shade to stretch the season for cool-weather crops like lettuce and broccoli.

Diversifying in this way has other benefits, too. If one crop fails, you’ll still have used your space well. Multi-crop beds also tend to be more disease and pest-resistant than monoculture plantings.

Use Cover Crops and Mulch

Bare soil is dead soil, especially when the temperatures climb. Keep your soil cool, moist, and healthy by keeping it covered. Cover crops are ideal for edges, pathways, and resting beds as they add nitrogen and organic matter to the soil. Some, like buckwheat, are very quick-growing and can be cut, dropped, and used as mulch for transplants.

Use mulch around plants and in heavy-use pathways. Mulch doesn’t have to be beautiful and perfectly matching. Try woodchips, straw, hay, grass clippings, or old leaves.

Use Your Shade

Shade isn’t usually a vegetable gardener’s friend. However, in the middle of a hot summer, plenty of cool-season crops will benefit from a bit of shade. Use the spaces around fruit trees or sides of buildings to experiment with getting better summer production from tender crops like green mixes.

Save Seeds

Each year, you have an opportunity to adapt your favorite varieties to your climate. Take it.

You may not have the time or energy to save all the seeds for your garden, but you can probably pick a few favorites. Maybe there’s a tomato you couldn’t live without or a pole bean your family has enjoyed for years. If you save seeds from the plants that performed best each year, you will shape that crop’s future to be specifically adapted to your growing conditions.

Gardening has never been easy, and it isn’t getting any easier! Climate change brings warmer temperatures, drought, new pests, and more. Hopefully, these tips will help you adapt your garden strategy to climate change and have a productive year.

Garden Advice

How to Grow Onions

November 28, 2023 Jordan Charbonneau Leave a comment

Onions are often touted as one of the easiest crops for beginners, but many folks need help for good production. Bulb onions can be a bit finicky, and if you don’t provide the correct conditions, your onions won’t bulb up properly. This quick-growing guide will get you on track for a big onion harvest, even if you’re a complete beginner.

Step One: Choose the Right Onions for Your Area

If you’ve browsed the bulb onions we carry, you’ve probably noticed that there are long-day (LD) and short-day (SD) onions. This designation is critical as it refers to the hours of daylight necessary to trigger the onions to bulb up.

Long-day onions need 14 to 15 hours of daylight to bulb, while short-day onions need 10 to 12 hours of daylight. For the LD types that we carry, you can plant them from Virginia northward. SD types can be spring or fall-planted in Virginia and fall-planted in the South.

Step Two: Start Onions Early

Bulb onions are one of the earliest crops we start at Southern Exposure. We begin tucking seeds into cold frames between September and January. You can also sow them in a greenhouse or indoors any time from mid-September through mid-March.

Just remember, earlier is better! Earlier sowing means larger bulbs because plants will get larger before the heat and lengthening days signal them to bulb up.

Onions should be sown about 1/4 inch deep in flats or trays. If you’re new to seed starting, check out this guest post, Starting Seedlings, by our friend Pam Dawling, author of Sustainable Market Farming.

Guest Blog Post: Starting Seedlings

Step Three: Select a Good Location & Improve Your Soil

Onions grow best in bulbs with full sun and light, well-drained soil with a pH between 6-7. Soil that is too acidic or alkaline will cause slow growth and late maturity.

Onions are heavy feeders that require fertile soil with plenty of organic matter. Onions need abundant potassium and phosphorous for good bulb formation and plenty of nitrogen during active leaf growth.

To improve your bed for transplanting, remove all weed growth, loosen the soil with a broad fork, garden fork, or tiller, and add a few inches of finished compost.

Step Four: Transplant Your Onions

Transplant your onions early. Onion seedlings are hardy to about 20 degrees F. Set them out in February or as soon as the soil can be worked in the spring.

Plant your onions 3 to 4 inches apart in rows 12 to 16 inches apart. Crowding can reduce production, particularly in poor soil. Refrain from pruning the tops, or your harvest will be significantly decreased.

Step Five: Mulch them Well

Mulch around your onions with a thick layer of straw, old leaves, grass clippings, or other organic material. Mulch will help suppress weeds and aid in maintaining moisture and nutrient levels.

Step Six: Keep Up with Weeding

Yes, this is every gardener’s least favorite chore and seems like a no-brainer, but it is critical with onions! Experiments have shown that weeds can cause a 4% reduction in onion production in one day or a 50% reduction in yield in 2 weeks.

Onions have shallow roots, so you may need to weed them by hand. Cultivation between rows should be shallow.

Step Seven: Harvest & Cure Your Onions

Harvest your onions when most of the tops have fallen over.

Some folks like to break the tops of their onions by hand to accelerate harvest. However, we’ve found that this harms the storage ability of some varieties and helps the storage ability of other varieties.

It’s best to harvest onions after a few days without rain so the soil isn’t muddy and difficult to work with. Pull your onions, using a garden fork if necessary, and cure them for 2 to 3 weeks until the necks have thoroughly dried.

Cure your onions somewhere with partial shade and good ventilation. After this period, you can clip the tops to within one inch of the bulb.

Step Eight: Rotate Your Onions Next Season

As with all crops, onions are subject to specific pest and disease issues. To continue getting good production, it’s best to rotate your crops. We like to rotate onions on a three-year rotation and compost any onion residue to keep them pest and disease-free.

If onions have given you trouble in the past, following this guide can help ensure good production. Start your onions early, provide plenty of space and nutrients, keep them weeded, and harvest them properly. Happy gardening!