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...
Pea - Speckled (Organic) - Microgreens Seeds
8-14 days. Speckled peas are particularly fine for pea shoot production. We only stock seeds with high germination rates so these tasty Organic peas can be sprouted or grown into...
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...
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...
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...
Peppermint Seeds
90 Days. Peppermint Culinary Herb Seeds. Mentha sp. Non-GMO. A deliciously versatile and bright herb, peppermint seeds are a naturally occurring hybrid between culinary spearmint and watermint. Grown very similar...
Bean Seeds - Pole - Blue Lake FM1K
65 Days to maturity. Phaseolus vulgaris . Blue Lake Pole FM1K Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, high-yielding, drought-tolerant, pole, snap bean. Suitable for growing in containers, garden plots, raised...
Red Clover - Organic - Sprouting Seeds
4-6 Days. Trifolium pratense. Organic. Sprouting. High Germination. Non-GMO Organic red clover sprouting seeds grow one of the most flavorful and diverse crops anywhere. Traditionally grown as both an ornamental...
Radish - Daikon Minowase (Organic) - Sprouting Seeds
5-6 Days to Harvest. Raphanus sativus var. longipinnatus. Organic Daikon Minowase Radish Sprouting Seeds. Organic. Non-GMO. Sprouting. High Germination. Organic Daikon radish seeds sprout one of the most unmistakably flavorful...
Swiss Chard - Ruby Red - Microgreens Seeds
11-21 days. A mild delicate spinach flavor and amazing red stem color. Makes an excellent choice to add to any micro mix for earthy flavor and striking color. Select a...
Lettuce Seeds - Romaine - Parris Island Cos
65-70 days. The Parris Island Cos lettuce is a Romaine lettuce, which means it is among the most nutritious of lettuce varieties. These non-GMO seeds grow upright into tall heads...
Green Pea - Organic - Sprouting Seeds
2-4 Days. Pisum sativum. Sprouting. High Germination. Organic. One of the sweetest and most delicious sprouting seeds, non-GMO Organic green pea shoots can turn any weeknight into an authentic gourmet...
Kohlrabi - Purple Vienna - Microgreens Seeds
8-12 Days to maturity. Brassica oleracea var gongylodes. Purple Vienna Kohlrabi Microgreen Seeds. Try adding these as the base of a microgreen salad. Their mild cabbage flavor, paired with colorful...
Arugula Seeds - Slow Bolt (Organic)
40-45 days. Organic Slow Bolt Arugula herb Seeds. Eruca vesicaria sativa. Non-GMO. Organic Slow Bolt arugula seeds are one of the fastest growing crops for home gardeners and, since they...
Cauliflower Seeds - Snowball Y Improved
70-80 days to maturity. Brassica oleracea var. botrytis. Snowball Y Improved Cauliflower Seeds. Non-GMO, heirloom, open-pollinated, annual. This is suitable for growing in garden plots, raised beds, containers, and fields....
Carrot - Microgreens Seeds
14-20 days. Carrots can be grown as microgreens. The green top when in microgreen stage has a delightful flavor of mild sweet carrot. The texture is like dill, without any...
Lettuce Seeds - Butterhead - Buttercrunch (Organic)
AAS Winner. 65 days. Recommended by Utah State University, Organic Buttercrunch is the most popular of the butterhead varieties. Approx. 16,000 seeds/oz. These non-GMO Buttercrunch seeds grow into vibrant, green...
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...
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...
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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