Zone 5 - What to Plant in September

Zone 5 - What to Plant in September

Zone 5 growers still have a few options to plant in their garden in September. Zone 5 first frost usually occurs in mid-late October. It's the perfect time to plant garlic so you get a fast start next spring. Also there are several cover crops that can be planted now to help bring nutrients back to the garden this fall and early spring. Below is a list of items that can be planted in zone 5 in September.

Red Malabar spinach (Basella rubra) is a heat-loving, vining green that thrives through the hottest days of summer when traditional greens fade. This vigorous Asian vine features glossy, thick, slightly savoyed dark green leaves set against striking deep red to purple stems, making it as ornamental as it is edible. The mild, chard-like flavor works well when young leaves and tender stems are used fresh in salads, blended into smoothies, or lightly cooked in stir-fries. Exceptionally tolerant of heat and humidity, it produces an abundance of nutritious greens well into fall, along with deep purple berries rich in anthocyanins that can be used as a natural dye. Not a true spinach, this beautiful plant is typically grown as an annual in cooler regions and as a perennial in subtropical climates, but it is not frost hardy.

The Viroflay Spinach is a gourmet French heirloom that was developed prior to 1866. The big, smooth leaves of this Spinach variety is a deep green color and grows up to 10 inches long. This very fast growing plant is popular for fall planting.

The French Breakfast Radish has a delicate flavor and is an excellent variety for home gardens. This radish variety is an attractive uniquely shaped radish with elongated roots and red tops with white tips. The French Breakfast has an excellent flavor and texture, that is perfect for dips or as a garnish.

The Dwarf Grey Sugar Pea is one of our customer favorite peas! Produces an abundance of attractive purple and blue flowers. These flowers are edible, have a light pea flavor and look great on many dishes. The mature peas are very flavorful and is ideal for steaming, stir-frying or eating fresh out of the garden. Dwarf Grey Sugar Pea is suitable for northern and southern regions, as it is tolerant to heat and cold.

Roquette Arugula seeds produce a fast-growing, cool-season leafy green prized for its peppery, nutty flavor and tender, deeply lobed leaves. Also known as salad rocket, this Mediterranean native has been cultivated since ancient Roman times for both its culinary and medicinal qualities. Roquette arugula thrives in full sun to partial shade and prefers well-drained, fertile soil, reaching harvest size in as little as 30–40 days. Ideal for salads, sandwiches, or as a garnish, its bold flavor intensifies as the plant matures. Regular harvesting encourages new growth, making it a favorite for continuous garden production throughout spring and fall.

Vit Mâche, also known as corn salad, lamb’s lettuce, or mâche, is a cool-season leafy green with a long history in Europe, where it was foraged in fields and vineyards before becoming a cultivated crop in the 17th century. This compact plant forms small rosettes of tender, spoon-shaped leaves that are deep green and naturally high in vitamins A and C. Its flavor is mild, slightly nutty, and gently sweet, making it a favorite for winter and early-spring salads. Mâche thrives in cool weather, germinating best in fall or early spring, and prefers rich, well-drained soil with consistent moisture. It’s cold-tolerant enough to survive light frosts, allowing gardeners to harvest the delicate rosettes over a long season with minimal care.

The Merlot is a looseleaf type of lettuce with intense deep burgundy colored leaves. This variety is slow bolting and ideal for cut and come again culture. Enjoy this beautifully colored lettuce in a baby salad mix!

The Santa Fe Lettuce produces a small blanched head that is surrounded by green outer leaves with a tinged bronze-red tip. This variety is a favorite for being extra crunchy!

Red Romaine Lettuce has long, crinkled leaves with great crunch! This variety starts green and fades to redish-purple. The Red Romaine's leaves are12" tall and the plant is about 10-12" wide. This lettuce is often used in Caesar salads not only for its crunch, but also for its color. Use Red Romaine lettuce for an incredible edible purple border in your flower beds.

Minowase radish seeds produce a classic Japanese daikon variety with origins in East Asia, where long-rooted radishes have been cultivated for centuries for their productivity and versatility. Known for its smooth white roots that often reach 12–18 inches, Minowase features crisp, juicy flesh with a mild, slightly sweet, lightly peppery flavor that is far gentler than smaller spring radishes. Its clean taste and firm texture make it ideal for microgreens, sprouts, salads, pickling, stir-fries, soups, fermenting, and even grating fresh as a condiment. This variety grows best in cool weather and loose, deeply prepared soil that allows for long, straight roots; sow seeds directly in late summer or early fall, provide consistent moisture, thin seedlings to prevent crowding, and harvest before hard frosts for the best quality.

Lolla Rossa lettuce is a beautiful Italian heirloom variety originating from the Lolla region near Bergamo, known for its striking deep-red, frilly leaves and crisp texture. Typically forming compact, loose-leaf rosettes about 6 to 8 inches across, it adds vibrant color and visual appeal to salads and garden beds alike. The leaves are tender yet slightly crunchy, offering a mild, slightly bitter flavor with a subtle nutty finish. Lolla Rossa thrives in cool weather and prefers full sun with well-drained, fertile soil rich in organic matter. It grows best in temperatures between 45–70°F and benefits from consistent moisture, making it ideal for spring and fall planting.

Seaside produces very uniform and great tasting baby leaf spinach. Stays baby size for extended period of time extending the season. Seaside has a nice, smooth, thick, very dark green, spade-shaped leaf making it a perfect choice for baby leaf growers. Seaside has great downy mildew resistance.

The Patio Pride Pea is the perfect variety for a container or small garden and it looks stunning among other ornamental combinations. This pea plant produces uniform, sugary sweet pods that are tender when harvested early. This variety is perfect for succession planting, as it yields a consistent harvest over many weeks. You can grow Patio Pride with other cool-season flowers for a gorgeous display right on your patio! Certified Organic. Learn more about our organic seeds.

Cascadia Pea is a major garden staple for its heavy yields of great tasting and crispy pea pods. Enjoy bucketloads of large, crisp pods with small, sugary peas! The 3' tall vines should be supported on a trellis or fence. Cascadia's multiple disease resistances allow for spring and late season plantings.

The Sugar Magnolia Pea is a beautiful deep purple colored sugar snap pea that is the result of over 15 years of development! This spectacular beauty has a very sweet flavor and is best before the pods get too fat. Make sure that this climbing variety has a trellis, as its sturdy vines reach to be 6-7 feet tall. Add the Sugar Magnolia to fresh salads or as a steamed side dish for a pop of color!

The Purple Plum is an amazing purple skinned radish with a crisp, mild and sweet white flesh! This unique radish is different from the "typical" radish coloring. This small round shaped radish is early to harvest, which makes it great for home and market growers. Purple Plum is a nice variety to blend with other colors in mixes!

Iceberg Lettuce is the tried and true lettuce that is an easy to grow, slow bolting crisphead. This variety has proven to be one of the most popular crispheads for years! Iceberg is a great lettuce that performs exceptionally well under warm weather conditions. This compact lettuce plant features better leaf texture and quality than other varieties. This variety resists rib discoloration and tip burn.

The Mini Greens Blend is a colorful mixture of red and green leaf lettuce varieties that creates a wonderful bright combination. This blend is neither considered a sprout nor true baby leaf lettuce either, these delicious mini greens are somewhere in between! The Mini Greens Blend will give you greens in just 2 weeks from germination to harvest!