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]()
Mustard Seeds - Miz America Hybrid
30-40 days maturity.Brassica juncea. Miz America Hybrid Mustard Seeds. Non-GMO, cool-season, annual, hybrid. Miz America was bred specifically to maintain a uniform purple to red color throughout its life, even...
Mustard Seeds - Tsa Tsai Round
120 days maturity after transplanting. Brassica juncea var. linearfolia. Tsa Tsai Round Mustard Seeds. Non-GMO, cool-season, annual, heirloom. Tsa Tsai Round is a popular and unique mustard variety from Southwest...
Parsley Seeds - Garden Blend
70-99 Days to maturity. Petroselinum crispum. Garden Blend Parsley Seeds. Non-GMO, annual, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Garden Blend Parsley is...
Mustard Seeds - Miike Giant
40 to 50 Days to maturity. Brassica juncea var rugosa. Miike Giant Mustard Seeds. Non-GMO, annual heirloom. This broad-leafed, ruby-veined, loosely-headed mustard actually gets pretty big! It can be up...
Mustard Seeds - Tat Soi - Black Knight - Organic
Organic Black Knight Tat Soi Mustard Seeds. 45 ‚55 days to maturity. Can be grown in containers. Can be grown as microgreens. Brassica rapa. Heirloom, Non-GMO, Annual. ~ 15,000 Seeds/ounce....
Mustard Seeds - Osaka Purple - Organic
Organic Osaka Purple Mustard Seeds. 40 - 80 days to maturity. Can be grown in containers. Can be grown as microgreens. Brassica juncea. Heirloom, Non-GMO, Annual. 45 days to maturity....
Mustard Seeds - Golden Frill
40-55 Days to maturity. Brassica juncea. Golden Frill Mustard Seeds. Heirloom, Non-GMO, Open Pollinated. Annual. Golden Frill Mustard Seeds. Brassica juncea. Non-GMO, Heirloom, Open Pollinated. Annual. 40 to 55 days...
Mustard Seeds - Golden Streak
Golden Streak Mustard Seeds. Brassica juncea. Non-GMO, Heirloom, Open Pollinated. Annual. 40 to 50 days to full maturity. Baby leaf harvest after about 20 to 25 days. This fast-growing baby...
Mustard Seeds - Horned
45 days to maturity. Brassica juncea var. linearfolia. Kobu Horned Mustard Seeds. Non-GMO, cool-season, annual, heirloom. This Chinese mustard is a vigorous grower with bright green, frilled leaves and classic...
Mustard Seeds - Mibuna Green Spray Hybrid
41 days to maturity. Brassica rapa var. japonica Mibuna Green Spray Mustard Seeds. Non-GMO, warm or cool-season, annual, hybrid. Similar to mizuna greens, mibuna mustard is a flavorful Japanese green...
Mustard Seeds - Crimson Red - Hybrid
40-55 Days to maturity (baby leaf 20-25 days)Brassica juncea Crimson Red Mustard Seeds. F1 Hybrid, Non-GMO, Annual. This highly attractive new red mustard green from Japan can be harvested at...
Mustard Seeds - Red Capital
40-50 Days to maturity. Brassica juncea. Red Capital Mustard Seeds. Hybrid, Non-GMO. Annual. This little-known variety is a fast-growing, tasty mustard. Both the full-sized and baby greens are recognizable by...
Mustard Seeds - Red Mizuna - Hybrid
Mustard Seeds - Red Mizuna - Hybrid. Non-GMO. Brassica rapa Japonica group. 20-25 days for baby leaf, 40-50 days to mature. Cool season annual. This small broad leaf mustard has...
Parsley Seeds - Forest Green (Organic)
70-80 Days to maturity. Petroselinum crispum. Organic Forest Green Parsley Seeds. Non-GMO, annual, organic, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Forest Green...
Mustard Seeds - Cho Kara
5 days for microgreens. 45 days to maturity.Brassica juncea. Cho Kara Mustard Seeds. Non-GMO, cool-season, year-round annual, heirloom. This mustard variety is bred especially for microgreen production and has a...
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