Over much of the USA, April is when the gardening season really gets going. Between preparing the soil and planting the early crops, it's easy to overlook important steps. We really recommend a garden journal as a way to map out what you want to do. Then fill in the whens and wheres. Don't forget to look around and notice what's happening in your area. When are the forsythia blooming? Are you hearing robins in the morning? These are links to the natural world, reasons why we are gardening. Don't forget to smell the roses.
Zones 1-7a: April is the bridge between the indoor seed-starting season and the first real outdoor planting in cold-winter zones. As soon as soil is workable, focus on bed prep, clearing winter cover, and making space for early direct sowing of hardy spring crops - often with row cover or low tunnels to buffer cold nights. Indoors, keep starting and potting up seedlings, and begin hardening off the earliest transplants on mild days so they are ready to go out as soon as your local frost window allows.
Zones 7b-9a: April is a peak planting month in mild-winter zones as soils warm and frost risk fades, opening the door to a much broader range of crops outdoors. Continue sowing cool-season favorites in early April, where nights are still chilly, but begin transitioning beds to warm-season planting through the month as temperatures stabilize. Succession sowing, trellising, and a little frost protection for surprise cold snaps help keep growth steady - and April is also an excellent time to harden off seedlings and get transplants established.
Zones 9b-12: April is full spring momentum in the warm-winter zones, with many gardens shifting decisively into warm-season planting while remaining cool-season crops finish strong. This is a great month to direct sow and transplant heat lovers outdoors, and to keep succession planting going so harvests don’t gap as days get longer and brighter. In the hottest areas, start planning for rising temperatures by watching irrigation closely, adding mulch, and timing your final rounds of tender cool-season crops before consistent heat arrives.
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![Legend: H for Heirloom, O for Organic, A for AAS Winner, F for staff favorites]()
Broccoli - Waltham 29 - Microgreens Seeds
8-12 days. Broccoli makes an excellent microgreen, as it is one of the easiest crops to grow. It has a deliciously mild, fresh brocolli or cabbage flavor and makes a...
Broccoli - Organic - Sprouting Seeds
5-7 Days. Brassica oleracea var. italica. Non-GMO. Organic. High Germination. Up to 50x more nutrients than fully matured raw broccoli, Organic broccoli sprout seeds offer more nutritional benefits without needless...
Basic Salad Mix - Microgreens Seeds
8-12 days. A flavorful and colorful combination of microgreens that grow well together and can be harvested at 10 days. Contains conventional seed types of: Broccoli, Kale, Kohlrabi, Arugula &...
Alfalfa (Organic) - Sprouting Seeds
4-6 Days to Harvest. Medicago sativa. Organic Alfalfa Sprouting Seeds. High Germination. Organic. Non-GMO. An ancient field crop that has continued to thrive in this modern era, organic alfalfa has...
Sunflower - Black Oil - Microgreens Seeds
Non-GMO Black Oil Sunflower Seeds. Shell On (Whole), Non-GMO. Open Pollinated. Helianathus Annus. 8-12 Days for mature, delicious microgreens. Black Oil sunflower seeds are some of the best seeds for...
Arugula - Slow Bolt - Microgreens Seeds
6-8 days. Slow Bolt Arugula is easy to grow and grows fast as a microgreen. It's a favorite and generally considered a staple of the spicier side of microgreens and...
Mung Bean - Organic - Sprouting Seeds
2-4 Days to Harvest. Vigna radiata. Organic Mung Bean Sprouting Seeds. Mung bean sprouts are arguably the most widely used sprouts. This organic seed is a great starter sprout that...
5 Part Salad Mix (Organic) - Sprouting Seeds
6-7 Days to Harvest. Organic 5 Part Salad Mix Sprouting Seeds. Organic. Non-GMO. Sprouting. Excellent Germination Rate. Without a doubt our most popular seed blend ever, our house signature Organic...
Carrot Seeds - Tendersweet
70-75 days. Tendersweet carrot Seeds. Daucus carota subsp. sativus. Non-GMO. Heirloom. Aptly named Tendersweet for its tender 9-10" roots and its unmatched sugar content, next to sugar beet, Tendersweet carrot...
Amaranth - Red Garnet - Microgreens Seeds
8-12 days. Red Garnet Amaranth is a high-protein microgreen with stunning red and magenta tones. This heirloom variety can be used in salads or many oriental dishes. Amaranth - Red...
Beet Seeds - Detroit Dark Red
55 days. Detroit Dark Red beet seeds. Beta vulgaris. Annual. Non-GMO. Since the turn of the century, Detroit Dark Red has been the preferred choice for homegrown classic American beets....
Squash Seeds - Summer - Zucchini Black Beauty
60-70 days. Black Beauty Zucchini Summer Squash Seeds. Cucurbita pepo. Non-GMO. Open Pollinated. AKA: Courgette. One of the most productive crops to ever find its way into the home garden,...
Broccoli Seeds - Waltham 29
85-90 days. Waltham 29 Broccoli Seeds. Brassica oleracea var. italica. Annual. Non-GMO. Developed at the University of Massachusetts Amherst's historic research farm, Waltham Field Station, heirloom Waltham 29 broccoli garden...
Pea - Green (Organic) - Microgreens Seeds
8-14 days. Green Pea microgreens are a staff favorite here at True Leaf! The tendrils add a unique texture while the stems have the same familiar crunch and sweet flavor...
Basil - Genovese - Microgreens Seeds
12-16 days. Use micro basil in place of regular basil in any recipe, for extra intense basil flavor. Micro basil pesto is amazing. Keep damp with regular misting until sprouted...
Pea Seeds - Snap - Sugar Snap
60-70 Days to maturity. Pisum sativum. Sugar Snap Pea seeds. Non-GMO, open-pollinated, 1979 AAS winner. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Resistant to powdery...
Bean Seeds - Bush - Blue Lake 274
50-65 Days to maturity. Phaseolus vulgaris. Blue Lake 247 Bean Seeds. Non-GMO, annual, open-pollinated, heirloom snap bush bean. Suitable for growing in containers, garden plots, raised beds, and greenhouses. Blue...
Cabbage Seeds - Golden Acre
65 days. The Golden Acre cabbage is a crop that can be grown in climate zones three through twelve, and is resistant to yellowing diseases. This hardy plant produces heads...
Broccoli Seeds - Waltham 29 (Organic)
85-90 days. Organic Waltham 29 Broccoli Seeds. Brassica oleracea var. italica. Annual. Non-GMO. Developed at the University of Massachusetts Amherst's historic research farm, Waltham Field Station, Organic Waltham 29 broccoli...
Squash Seeds - Winter - Waltham Butternut
85-90 days. Cucurbita moschata. Waltham Butternut Winter Squash seeds grow as cool season tender annuals that are fast-maturing. As the summer season fades, butternut squash varieties are the most popular...
Radish - Rambo (Organic) - Microgreens Seeds
6-10 days. Organic Rambo Radish is another striking radish that boasts the same wonderful dark cotyledons as Sango radish. The rosy stems and bright floral flavor add both a tasty...
Cabbage - Red Acre - Microgreens Seeds
6-14 days. Red Acre Cabbage microgreens grow petite red and violet stems with variegated shades of green leaves. A very popular seed to add to microgreen mixes. Pairs well with...
Protein Powerhouse Mix - Organic - Sprouting Seeds
2-4 Days. Non-GMO. Organic. High Germination. Non-GMO Organic Protein Powerhouse Mix features four of the most protein-rich sprouting seeds available, while boasting plenty of additional fiber, iron, potassium, and essential...
Radish - Rambo - Microgreens Seeds
6-10 days. Rambo radish is another striking radish that boasts the same wonderful dark cotyledons as Sango radish. The rosy stems and bright floral flavor add both a tasty and...
Okra Seeds - Clemson Spineless
50-70 days. Clemson Spineless Okra Seeds. Abelmoschus esculentus. Non-GMO. Heirloom. Also known as Clemson Spineless 80. Clemson Spineless okra debutedas the 1939 All-America Selections Vegetable Winner is a highly popular...
Onion Seeds - Long - Utah Yellow Sweet Spanish
110-115 Days to maturity. Allium cepa. Utah Yellow Sweet Spanish Onion Seeds. Non-GMO, annual, open-pollinated, heirloom, cold tolerant, bulbing, long-day onion. Suitable for growing in greenhouses, garden plots, raised beds,...
Parsley Seeds - Dark Green Italian Flat-leaf
Petroselinum crispum Annual. 72 days. Non-GMO, Heirloom Dark Green Italian Flat Leaf Parsley Herb Garden Seed from True Leaf Market. Petroselinum crispum. Italian Parsley plants are hardy biennials often grown...
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