May is the month when the gardening season shifts into high gear across most of the country. In cold-winter zones, the last frost is finally behind us, and it's time to get warm-season crops in the ground. In mild-winter zones, the garden is already humming, and the focus turns to keeping up with rapid spring growth. And in the warmest zones, the race is on to get heat-lovers established before summer temperatures take over. Whatever your zone, May is a month of momentum.
Zones 1-7a: May is the main planting kickoff in cold-winter zones, when gardens finally move from starts and prep into full outdoor action. Early May often still favors hardy transplants and direct-sown cool-season crops, while mid-to-late May is when many areas can safely set out warm-season plants as frost risk drops. Keep hardening off seedlings, use row cover if nights run cold, and focus on steady watering and early weed control so young plants establish quickly.
Zones 7b-9a: May is prime warm-season planting time in mild-winter zones, with soil temperatures rising and growth accelerating. This is the month to get main-season crops established outdoors, keep up with succession sowing, and set up supports before vines and tall plants take off. Watch moisture as days warm, mulch to hold soil moisture, and keep an eye out for the first big flush of pests as the garden hits its stride.
Zones 9b-12: May marks the shift into early summer conditions in the warm-winter zones, and gardens respond fast with rapid growth. Warm-season crops should be planted and growing strongly now, and succession sowing keeps harvests coming even as temperatures climb. Stay ahead of heat stress by mulching, watering consistently, and planting in the coolest part of the day - and in the hottest areas, begin planning for shade cloth and other summer protection.
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![Legend: H for Heirloom, O for Organic, A for AAS Winner, F for staff favorites]()
Dill - Bouquet - Microgreens Seeds
12-15 days. Bouquet dill as a microgreen will bring a bright zest to your soup, fish or seafood dish! It's willowy appearance and pleasant aroma will add flair to bring...
Cucumber Seeds - Ashley
65 days. The Ashley cucumber is a large variety of cucumber that is sweet and tender. The Ashley is green and smooth, and grows to be seven to eight inches...
Pumpkin Seeds - Jarrahdale
Cucurbita maxima (100 days) A New Zealand heirloom, Jarrahdale pumpkin has a slate blue, ribbed exterior and a deep delicious orange interior flesh. The flesh is dry, string less, sweet...
Chamomile Seeds - German (Organic)
60+ Days to maturity. Matricaria chamomilla. Organic German Chamomile Seeds. Non-GMO, annual, organic, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. German Chamomile makes...
Sunflower Microgreens Seeds (Organic)
8-12 Days to harvest. Helianthus annuus. Certified Organic Sunflower Seeds. Sunflowers are some of the most popular microgreens on the market. Grow your own with these organic seeds. If you...
Pepper Seeds - Hot - Anaheim Chili
70-90 Days to maturity (from transplant). Capsicum annuum. Anaheim Chili Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, deer resistant, heat tolerant, drought tolerant, hot-type pepper with mild heat levels. 500 to...
Kale Seeds - Dwarf Siberian
50-60 days. Dwarf Siberian Kale is a high yielding variety high in nutrients. This crop is leafy and bright green in color. Dwarf Siberian Kale is versatile and can be...
Bean Salad Mix - Organic - Sprouting Seeds
2-4 Days. Non-GMO. High Germination. Organic. One of the best tasting and versatile sprout mixes available, non-GMO Organic Bean Salad Mix boasts some of the most popular and delicious legumes....
Cat Grass Seeds - Seed Blend (Organic)
7-10 Days to Harvest. Triticum aestivum, Hordeum vulgare, Secale cereale, and Avena sativa. Organic Cat Grass Blend Sprouting Seeds. Non-GMO. High Germination. Cat & Pet Grass Seed Blend. Non-GMO, Certified...
Oxygen Absorbers Packets by OxyFree
Vacuum sealed bag Oxygen absorbers. Choose packets from 100 CC capacity to 2000 CC capacity. Extends shelf life of stored foods and prevent growth of aerobic pathogens, bugs, and spoilage...
Pepper Seeds - Sweet - Purple Beauty
70 Days to maturity (from transplant). Capsicum annuum. Purple Beauty Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, high-yielding, drought tolerant, sweet pepper with no heat. 0 Scoville Heat Units. Resistant to...
Squash Seeds - Winter - Burgess Buttercup
Non-GMO Burgess Buttercup is ready in 100 days and recommended by Utah State. This winter squash has a thick, orange, and creamy flesh that tastes like sweet potatoes once cooked....
Pepper Seeds - Hot - Serrano Tampiqueno
70 to 80 Days to maturity (from transplant). Capsicum annuum. Serrano Tampiqueno Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, high yielding, deer resistant, heat tolerant, drought tolerant, hot-type pepper with medium...
Chamomile Seeds - Roman
Non-GMO, Heirloom Roman Chamomile Herb Garden Seed from True Leaf Market. Chamaemelum Nobile. Roman Chamomile plants originated from North Africa and were later cultivated in Europe"as chamomile has an ancient...
Tomato Seeds - Slicing - Oregon Spring
58 Days to maturity (from transplant). Solanum lycoperscium. Oregon Spring Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, determinate, slicing tomato. Suitable for growing in containers, garden plots, raised beds, greenhouses. Resistant...
Cucumber Seeds - Straight Eight (Organic)
55-65 Days to maturity. Cucumis sativus. Organic Straight Eight Cucumber Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, 1935 AAS-winning, slicing cucumber. Suitable for growing in fields, containers (with support), garden plots,...
Bean Seeds - Pole - Oriental Yard Long
85 Days to maturity. Vigna unguiculata subsp. sesquipedalis. Oriental Yard Long Pole Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, heat-tolerant, pole, snap, Asian, specialty bean. Suitable for growing in containers, garden...
Bean Seeds - Bush - Tendergreen (Organic)
50-65 Days to maturity. Phaseolus vulgaris. Organic Tendergreen Bush Bean Seeds. Non-GMO, annual, organic, heirloom, high-yielding, heat tolerant, bush, snap, green bean. Suitable for growing in containers, garden plots, raised...
Carrot Seeds - Little Fingers
55 days. The Little Fingers carrot seeds produce adorable mini carrots with a beautiful orange color, packed with flavor! These smaller roots are cylindrical and grow up to 4 inches...
Bean Seeds - Bush - Pinto
90-95 Days to maturity. Phaseolus vulgaris. Pinto Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, bush, shelling bean. Suitable for growing in containers, garden plots, raised beds, and greenhouses. Pinto Beans are...
Celery - Utah 52-70 - Microgreens Seeds
21-28 days. A very light green micro that tastes just like celery, but with a more intense flavor. Great addition to any micro salad or sandwich to add crunch and...
Tomato Seeds - Cherry - Yellow Pear (Organic)
78 Days to maturity (from transplant). Solanum lycoperscium. Yellow Pear Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, indeterminate, cherry tomato. Suitable for growing in garden plots, raised beds, and...
Fennel Seeds - Florence
90-115 days. Foeniculum vulgare var. azuricum. Florence Fennel Seeds. Non-GMO, short-lived perennial herb, heirloom, open-pollinated. This crop is suitable for garden plots, raised beds, and containers. Florence fennel is a...
Corn Seeds - Sweet - Stowells Evergreen
95 Days to maturity. Zea mays. Stowells Evergreen Corn Seeds. Non-GMO, annual, open-pollinated, heirloom, Sweet Corn. Suitable for growing in garden plots or raised beds. Corn tolerates heat and drought-prone...
Borage - Microgreens Seeds
10-20 days. Non-GMO Borage microgreens seed is a moderate to easy microgreen to grow. It may just take a little patience but these borage seeds will produce immensely healthy microgreens...
Lettuce Seeds - Leaf - Lollo Rosso (Organic)
55-60 days. Lactuca sativa. Organic Lollo Rosso Lettuce seeds grow as cool-season crops and fast-maturing annuals. Lollo Rosso Italian Lettuce can be harvested as a "cut and come back again"...
Carrot Seeds - Tendersweet - Organic
Daucus carota (75 days) Tendersweet has long, 9-10" tapered roots; rich orange color; sweet, and coreless. This heirloom carrot is a reliable producer that has been pleasing folks for generations....
Cucamelon Seeds - Mexican Sour Gherkin
Cucamelon Seeds. Melothria scabra. 65 Days to maturity. Annual. Non-GMO, Heirloom, Open Pollinated. AKA: Mexican Mouse Melon, Sandia de Raton, Mexican Sour Gherkin, Mexican Miniature Watermelon, Mexican Sour Cucumber. Looking...
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