Zone 9 - What to Plant in September

Zone 9 - What to Plant in September

September is one of the best months to start gardening in Zone 9. You're just past the dog days of summer and the weather is starting to cool down a bit. The typical first frost in Zone 9 is mid December but even then it can be very mild. This allows for easy winter growing of several crops. Below is a list of items that can be planted in zone 9 in September.

The Outredegeous Lettuce is a deep, dark purple red romaine that will maintain its dark color even under low-light conditions! This mesmerizing variety is a wonderful baby leaf type and large loose leaf type, making it the perfect lettuce for salad growers. You can start using its leaves after 28 days. Outredegeous seeds are a natural mix of black and white.

Crimson radish is a vibrant and flavorful variety of radish that stands out for its striking color and crisp texture. Originating from traditional radish cultivars, Crimson radish has been cultivated for its eye-catching appearance and peppery taste. This variety is known for its round, smooth roots, which boast a deep red to crimson skin and a white, crunchy interior. The flavor is typically sharp and tangy, with a satisfying bite that enhances salads, sandwiches, and garnishes. Crimson radishes generally mature in about 25 to 30 days, making them a quick and rewarding crop for gardeners. The plants exhibit a compact, upright growth habit, growing to a height of about 6 to 12 inches with a spread of 6 to 8 inches. They thrive in cool weather and well-drained soil, preferring full sun to partial shade. Their rapid growth and ease of cultivation make them ideal for successive plantings, providing a steady supply of fresh radishes throughout the growing season. With their vibrant color, crisp texture, and zesty flavor, Crimson radishes are a popular choice for adding both visual appeal and flavor to the garden and kitchen.

This refined, open-pollinated cabbage produces round, green heads wrapped around crisp, tender white hearts and has been a trusted favorite since at least the 1920s. Known for its very early maturity and compact growth habit, it is ideal for dense plantings and tight spacing while still delivering strong yields of uniform, marketable heads. The dense, solid heads are spherical, typically measuring 5–7 inches across and weighing about 3–5 pounds, with plants remaining relatively small compared to head size. Fresh, the flavor is delicately crunchy with a pleasant bite, while cooking mellows it to a rich, buttery taste. Well suited for coleslaw, stir-fries, and other fresh kitchen uses, this variety shines as an early fresh-market cabbage rather than a long-term storage type. Maturing in about 65 days, it is an excellent choice for serious cabbage growers seeking high quality and reliability.

The Gourmet Mesclun Blend is a colorful mixture of our favorite gourmet leaves! This blend offers a pleasing mix of colors and types of lettuce that are delicious together in a salad. The Gourmet Mesclun Blend is also great for baby leaf production.

An early maturing heirloom cabbage. Early Jersey Wakefield is an early variety of cabbage with pointed heads that resist splitting! A great home garden cabbage with great flavor!

The Snow Crown cauliflower is a delicious, mild and sweet hybrid. This cauliflower's head will get to 7-8 inches across and 1-2 pounds. The Snow Crown is extra early and adaptable and can be harvested in summer or fall. Be careful not to under-fertilize or water, stress can cause a purplish discoloration on the undersides of the head.

Rouge D'Hiver Lettuce is a beautifully multicolored French heirloom romaine. This variety's green leaves are tinted with medium-red color at the tip. Rouge D'Hiver is not just beautiful, but it is also very tasty and very easy to grow. This lettuce is a home favorite for resisting heat and cold stress if well watered. This variety has been recently resurrected.

The Early Scarlet Globe is an early forcing radish that is perfect for home and market growers! This variety is a great bunching radish that produces 1" globes with bright red skin and a white flesh. The Early Scarlet Globe is great for both spring and fall planting!

Waltham 29 broccoli seeds produce a classic, open-pollinated variety that was developed in the early 20th century by the University of Massachusetts at Waltham and has remained a trusted garden standard ever since. This variety forms large, deep blue-green central heads measuring 6–8" across on sturdy, cold-tolerant plants that typically reach 20–24" tall. Known for its reliability and adaptability, Waltham 29 performs especially well in cooler temperatures and is valued for its uniform growth and strong side-shoot production after the main head is harvested, resulting in generous yields over an extended period. It matures in about 74–85 days from transplant, making it well suited for spring and fall planting. The tightly packed florets have a tender texture and mild, slightly sweet flavor, excellent for fresh eating, steaming, freezing, and a wide range of culinary uses.

The red veined Red Tabby Spinach has beautiful tender smooth leaves. This variety is an excellent baby leaf spinach that does well in spring, fall and winter. Its uniform, smooth leaves grow straight and upright. Red Tabby is also resistant to downy mildew races 1-13.

Sugar Sprint Pea will sprint into the production of delicious peas! This fast maturing, heavy producing pea plant is one of the earliest maturing peas available. This pea variety produces 3" stringless snap peas over a long period. Sugar Sprint is heat tolerant and resistant to powdery mildew.

Snowball Y Improved cauliflower is a popular open pollinated variety! This cauliflower is known for its vigorous, rapid growth and long harvest. Its head is snow-white and measures 7-8" inches across. Give this cauliflower fertile soil, full sun and steady moisture and you'll be rewarded with large, delicious heads that are high in vitamin C.

The Tom Thumb Lettuce is a tennis ball sized Bibb type with a great flavor! This slightly savory, bright green lettuce produces small compact heads that have slightly crumpled leaves with a sweet, delicate flavor. One head will make a salad for two! Tom Thumb will grow beautifully in small pots, window boxes, hanging baskets and planted under trees. This variety is the oldest American lettuce still grown, dating back to 1830's! This rare find is a good one!

Carmona Red is a favorite among many market growers! This lettuce variety produces big, bright red heads with lime green hearts. The Carmona Red has a nice silky texture and is very disease resistance.

The Red Sails Lettuce is a full rosette type that produces radiant bronze-red, ruffled and deeply lobed leaves that have a mild bitter-free flavor that pairs very well in salads. This slow-bolting lettuce is ready to cut early and holds its quality very well. Red Sails has six times the vitamin A and three times the vitamin C as other supermarket lettuces. This variety thrives in cool weather, but can also grow well in the spring, summer or fall.

Red Jewel is early maturing and produces good size cabbages. This variety is a high-yielding red cabbage hybrid with uniform maturity. Red Jewel offers a deep red head with a short core and is ideal for both fresh and shredder markets.

The Vivian lettuce is a tightly bunched romaine with broad dark green crisp leaves. Its leaves are 12-16 in. long and 4-6 in. across. Vivian is bolt resistant and suitable for commercial and home growers. Its erect dark green leaves are great for baby leaf production.

Lakeside smooth leaf spinach with dark green leaves. It has a round to oval leaf shape with an upright plant habit that makes it easy to harvest. It is a very versatile variety it can be used for baby leaf, bunch or clip.