What Vegetable Seeds To Sow In March

March marks the exciting transition from winter to spring, where the earth starts to awaken from its slumber and gardeners eagerly anticipate the growing season ahead. For many, March is the perfect time to start sowing vegetable seeds, laying the foundation for a bountiful harvest later in the year. In this guide, we’ll explore some of the best vegetable seeds to sow in March, ensuring a successful and rewarding gardening experience.

Lettuce Speckled Trout

Lettuce

Lettuce is a cool-season vegetable that thrives in the moderate temperatures of early spring. Sowing lettuce seeds in March allows them to establish before the heat of summer kicks in, resulting in crisp and flavorful leaves. Varieties such as butterhead, romaine, and loose-leaf lettuce are excellent choices for March planting. Ensure consistent moisture and partial shade to prevent the lettuce from bolting prematurely.

Pea Tom Thumb

Peas

Peas are a quintessential spring vegetable, beloved for their sweet flavour and tender texture. Whether you prefer dwarf or climbing, if you didn’t sow these earlier, March is the ideal time to sow pea seeds. These cool-season crops thrive in temperatures ranging from 7°C to 24°C, making them perfect for early spring planting. Provide support for climbing varieties and keep the soil evenly moist for optimal germination and growth.  Peas are very fast growing, so you’ll see results soon!

Atomic Red Carrot

Carrots

March is also an excellent time to sow carrot seeds, setting the stage for a summer harvest of sweet and crunchy roots. Choose a sunny location with loose, well-draining soil, free from rocks and debris. Carrot seeds are tiny, so sow them thinly and cover lightly with soil. Keep the soil consistently moist until the seeds germinate, then thin the seedlings to allow ample space for the roots to develop.

Celery Blush Heirloom Seeds

Celery

If you love celery as much as we do, it’s time to sow some seed.  Choose your variety based on preference.  We love Celery Utah because it’s a stringless variety which is great if you want to eat it raw.  Or try Celery Blush (image and link above) for stunning pink tinged stems.

Tomato Costoluto Heirloom Seeds

Tomatoes

March is the perfect time to sow tomato seeds, giving them a strong start for the season ahead. With longer days and increasing light levels, your seedlings will thrive, but a little extra warmth goes a long way—pop them in a propagator or on a sunny windowsill to help with germination. Keep the compost lightly moist, and be patient; those tiny green shoots will appear before you know it! Once they sprout, give them plenty of light to prevent legginess, and before long, you’ll have strong, healthy plants ready for potting on.

Onion Galactcus Heirloom Seeds

Onions

March is still a great time to sow onion seeds, especially if you’re looking for strong, healthy bulbs later in the year. While autumn sowings get a head start, spring-sown onions can catch up quickly with a little extra care. Start them off in modules indoors or in a greenhouse to give them the best chance, keeping the compost lightly moist and warm for steady germination. Once they sprout, make sure they have plenty of light to prevent them from getting leggy. Before you know it, you’ll have sturdy little plants ready to be hardened off and planted out for a fantastic summer harvest!

Sweet Pepper Blot Heirloom Seeds

Sweet Peppers

March is a brilliant time to sow sweet peppers, giving them plenty of time to grow strong before the warmer months. These heat-loving plants need a little extra warmth to get going, so pop them in a heated propagator or a warm, bright windowsill to encourage germination. Keep the compost just moist—not too wet—and be patient, as peppers can take a couple of weeks to sprout. Once they’re up, give them as much light as possible to keep them sturdy and compact. With the right care, you’ll be rewarded with lush, productive plants and a summer full of homegrown peppers!

Aubergine Melanzana Prosperosa Heirloom Seeds

Aubergines

March is a great time to sow aubergines, giving them the long growing season they need to thrive. These warmth-loving plants can be a little slow to get going, so a heated propagator or a cozy spot indoors will really help with germination. Sow them in small pots or modules, keeping the compost lightly moist but never soggy. Once they sprout, make sure they get plenty of light to grow strong and sturdy. With a little patience and the right care, you’ll have beautiful, healthy plants ready for transplanting—and plenty of delicious homegrown aubergines later in the season!

Cockscomb Purple Empress Heirloom Seeds

Cockscomb

March is the perfect time to sow cockscomb for a stunning summer display of vibrant, velvety blooms. These heat-loving flowers thrive with a little warmth, so start them off indoors in seed trays or small pots, keeping the compost lightly moist and somewhere cozy—like a heated propagator or a sunny windowsill. They can be a bit slow to germinate, so don’t worry if they take a couple of weeks to appear! Once up, give them plenty of light to keep them strong and compact. With a little care, you’ll have a gorgeous show of fiery plumes and intricate crests all summer long!

radish fire candle Heirloom Seeds

Spring Radishes

March is the perfect time to start sowing spring radishes, one of the quickest and easiest crops to grow! These little gems thrive in the cool weather, so simply scatter the seeds directly into well-prepared soil or deep containers, keeping them spaced to avoid overcrowding. Keep the soil consistently moist, and within just a few days, you’ll see the first tiny shoots appear. They grow fast, so in as little as four weeks, you’ll be pulling up crisp, peppery radishes—perfect for adding a fresh crunch to spring salads!

Agastache Peach Margarita Heirloom Seeds

Agastache

March is a great time to sow agastache, a gorgeous, pollinator-friendly plant that brings both beauty and fragrance to the garden. Start the seeds indoors in trays or small pots, pressing them lightly onto the surface of moist compost—these tiny seeds need light to germinate, so don’t bury them! A warm, bright spot will encourage steady growth, and within a couple of weeks, you’ll see the first delicate seedlings appear. Once they’re big enough to handle, pot them on and harden them off before planting out. Come summer, you’ll have stunning spires of flowers buzzing with happy bees!

amaranth molten fire Heirloom Seeds

Amaranth

March is a fantastic time to sow amaranth, whether you’re growing it for its stunning ornamental blooms or its tasty, nutrient-packed leaves. Start the tiny seeds indoors in trays or small pots, pressing them lightly onto the surface of moist compost—they need light to germinate, so don’t bury them! A warm, bright spot will get them going, and in about a week, you’ll see the first signs of life. Once they’re strong enough, pot them on and harden them off before planting out. By summer, you’ll have tall, dramatic plants swaying in the breeze, loved by both pollinators and gardeners alike!

Beetroot Red Toad Heirloom Seeds

Beetroot

March is a great time to start sowing beetroot, one of the easiest and most rewarding crops to grow! Sow the seeds directly into well-prepared soil or in deep containers, spacing them out to give the roots room to swell. Keep the soil consistently moist to encourage even germination, and don’t be alarmed if multiple seedlings sprout from each seed cluster—just thin them out as they grow. With a little care, you’ll have sweet, earthy beets ready to harvest in just a few months, perfect for roasting, pickling, or enjoying fresh in salads!

Hidatsa Red Bean Heirloom Seeds

Beans (runner, French, broad)

March is the perfect time to get an early start on beans, especially if you have a little warmth to help them along. While tender varieties like French and runner beans prefer to wait until later, you can sow broad beans directly outside now for a strong, early crop. For a head start on climbing beans, sow them indoors in pots, keeping them warm and lightly moist until they sprout. Once the risk of frost has passed, they’ll be ready to harden off and plant out. With their fast growth and generous harvests, beans are a must for any veg patch!

Kohlrabi Dyna Heirloom Seeds

Kohlrabi

March is the perfect time to sow kohlrabi, a fun and versatile veggie that’s perfect for spring and summer harvesting. Start the seeds indoors in trays or small pots, pressing them lightly into the soil and keeping them moist. A cool, bright spot will help them along, and before long, you’ll see the first tiny shoots emerging. Once the seedlings are big enough to handle, harden them off and plant them out in well-drained soil. With their crisp, mildly sweet bulbs and lovely purple or green skin, kohlrabi adds a refreshing crunch to salads and stir-fries!

gourd italian snake Heirloom Seeds

Gourds

March is the time to sow gourds if you’re looking for a fun and vibrant addition to your garden later in the season. Start the seeds indoors in small pots or seed trays, as gourds need a long growing season to fully mature. Keep them warm and moist in a sunny spot, and soon you’ll see those little seedlings pushing through. Once the weather warms up and all risk of frost has passed, you can harden them off and plant them outside, giving them plenty of space to spread out. By autumn, you’ll have a stunning array of colourful, quirky gourds to decorate your home or use for crafts!

leek elefant Heirloom Seeds

Leeks

March is a great time to start sowing leeks, giving them plenty of time to grow into sturdy, deliciously mild stalks for summer and autumn harvesting. Sow the seeds indoors in shallow trays or pots, pressing them gently into moist compost and placing them in a cool, bright spot. Leeks take their time, so be patient as they germinate and grow. Once the seedlings are big enough, harden them off before planting them out in well-drained soil. With their lovely, onion-like flavour, leeks are a must-have for soups, stews, and hearty dishes all year round!

mangelwurzel Heirloom Seeds

Mangelwurzels

March is the perfect time to sow mangelwurzels, especially if you’re growing them as a reliable crop for winter feed or as a hearty addition to your compost. These tough, fast-growing roots thrive in cool temperatures, so sow the seeds directly into well-prepared soil, spacing them generously to give them room to grow. Keep the soil moist and well-drained, and within a few weeks, you’ll start seeing the first shoots appear. Mangelwurzels are incredibly versatile, and their large, nutritious roots can be used for everything from animal feed to adding bulk to your soil. A truly hardy and productive plant!

artichoke italian purple Heirloom Seeds

Artichokes

March is the perfect time to sow artichokes, whether you’re growing them for their stunning, spiky beauty or their delicious, tender hearts. Start them indoors in pots, as they need a long growing season to mature. Artichokes love warmth, so keep them in a sunny spot and make sure the compost stays moist but not soggy. Once the seedlings are large enough, harden them off and plant them outside in a sunny, well-drained spot. With a little patience, you’ll have magnificent plants that not only look great in the garden but reward you with tasty, globe-shaped artichokes in the summer!

brussel sprout red bull Heirloom Seeds

Brussel Sprouts

March is the perfect time to start sowing Brussels sprouts, giving them plenty of time to grow strong before the cooler months arrive. Start them indoors in seed trays or pots, pressing the tiny seeds gently into moist compost. Keep them in a cool, bright spot, and soon enough, those little seedlings will begin to sprout. Once they’re big enough to handle, harden them off and plant them out in rich, well-drained soil. With regular care, you’ll have sturdy plants that will reward you with sweet, homegrown sprouts come autumn and winter!

sprouting broccoli white eye Heirloom Seeds

Sprouting broccoli

March is the perfect time to sow sprouting broccoli, a hardy and nutritious vegetable that’s well worth the wait. Start the seeds indoors in trays or pots, pressing them gently into moist compost. Keep them in a cool, bright spot to help them germinate, and soon enough, you’ll see the first green shoots emerging. Once the seedlings are big enough, harden them off and plant them out in rich, well-drained soil. With a little patience, you’ll have beautiful, tender florets ready to harvest next spring—perfect for adding to hearty dishes or simply steaming as a side!

summer cabbage kalibos Heirloom Seeds

Summer cabbage

March is the ideal time to sow summer cabbage, giving them a solid start before the warmer months. Start the seeds indoors in seed trays or pots, pressing them lightly into moist compost. Keep them in a cool, bright spot, and soon enough, tiny seedlings will begin to emerge. Once they’ve developed a few strong leaves, harden them off and plant them outside in rich, well-drained soil. These cabbage plants thrive in cooler weather, and with a little care, you’ll be rewarded with crisp, tender heads just in time for summer meals!

cauliflower sicilian violet Heirloom Seeds

Cauliflower

March is a great time to sow cauliflower, giving these cool-weather crops plenty of time to grow strong before the summer heat sets in. Start the seeds indoors in trays or pots, pressing them gently into moist compost. Keep them in a cool, bright spot to encourage germination, and soon enough, those little seedlings will start to emerge. Once they’re big enough, harden them off and plant them out in fertile, well-drained soil. With a little care, you’ll have beautiful, tender heads of cauliflower ready for harvest in late summer, perfect for roasting, steaming, or adding to soups!

cucumber dragons egg Heirloom Seeds

Cucumbers

March is the perfect time to sow cucumbers, especially if you want an early start on those crunchy, refreshing fruits. Start the seeds indoors in small pots or seed trays, pressing them gently into moist compost. They love warmth, so place them in a sunny spot or on a heated propagator to encourage quick germination. Once the seedlings are strong enough, harden them off and plant them out after the last frost. With a little attention and support, you’ll be rewarded with plenty of homegrown cucumbers—perfect for summer salads and refreshing drinks!

goji berry Heirloom Seeds

Goji berries

March is a great time to start sowing goji berries, especially if you’re looking to grow your own superfood! These hardy, perennial plants love a sunny spot, so start the seeds indoors in small pots or seed trays with well-drained compost. Keep them warm and moist, and soon enough, you’ll see those little green shoots pop up. Once they’ve grown strong enough, you can transplant them outside into rich, well-drained soil. With patience and a little care, your goji berry plants will thrive, providing you with vibrant red berries packed with nutrients for years to come!

Kale Precoce Di Toscana Heirloom Seeds

Kale

March is a perfect time to sow kale, one of the hardiest and most nutritious greens you can grow. Start the seeds indoors in trays or pots, pressing them gently into moist compost, and keep them in a cool, bright spot to help them germinate. Once the seedlings are strong enough, harden them off and plant them out in rich, well-drained soil. Kale loves the cool weather, so it will thrive as the days lengthen, providing you with fresh, tender leaves for salads, soups, and stir-fries throughout the season.

melon rich sweetness Heirloom Seeds

Melons

March is the perfect time to start sowing melons if you’re dreaming of sweet, juicy summer fruits! Start the seeds indoors in small pots or seed trays, using well-drained compost, and keep them warm—ideally around 20°C —to help them germinate. Melons need plenty of sunshine and warmth, so find a sunny spot or use a heated propagator to give them the best chance. Once the seedlings are big enough and the risk of frost has passed, harden them off and plant them outdoors in rich, well-drained soil. With patience and care, you’ll be rewarded with a bountiful crop of delicious melons come summer!

watermelon moon & stars Heirloom Seeds

Watermelon

March is the perfect time to start sowing watermelon, especially if you’re craving homegrown, refreshing fruit come summer. Start the seeds indoors in small pots or seed trays, using light, well-drained compost, and keep them warm—around 21°C —to encourage strong germination. Watermelons love warmth and plenty of sunshine, so find them a sunny spot or use a heated propagator for the best results. Once the seedlings are big enough and the weather warms up, harden them off and plant them outdoors in fertile, well-drained soil. With a little care, you’ll have luscious, juicy watermelons to enjoy all season long!

swiss chard peppermint Heirloom Seeds

Chard

March is a great time to sow chard, a hardy and colorful green that thrives in cooler weather. Start the seeds indoors in trays or small pots, pressing them gently into moist, well-drained compost. Keep them in a cool, bright spot to encourage steady growth, and soon enough, the vibrant, multi-colored seedlings will start to emerge. Once they’re big enough to handle, harden them off and plant them out in rich, fertile soil. Chard is a low-maintenance, cut-and-come-again crop, meaning you can enjoy its tender, nutrient-packed leaves all season long!