Soybean Seeds – Glycine max
Glycine max • Fabaceae (Leguminosae) • Native to Northeastern China, East Asia
Soybean Seeds max grow into warm-season plants that produce protein-rich pods with edible beans. A practical choice for vegetable gardens, raised beds, crop trials, and fresh home cooking.
Quantity: 100 Seeds
Selected: 100 Seeds
Germination depends on soil, temperature, moisture, and care. See our return policy for details.
At a glance
Soybeans are highly sensitive to frost, so planting before soil temperatures consistently reach 60 degrees Fahrenheit will cause poor soybean germination and weak seedling establishment.
Botanical profile
Meet the Soybean – Glycine max
Step-by-step planting
Growing soybeans from seed is straightforward once you understand their preferences for warmth, drainage, and space.
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1
Time Your Planting
Direct sow soybean seeds outdoors after your last frost date, when soil has warmed to at least 60 to 65 degrees Fahrenheit, which typically falls in late spring through early summer depending on your region.
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2
Prepare the Soil
Soybean soil requirements favor a well-draining, loamy bed with a pH between 6.0 and 6.8, so amend heavy clay or sandy soils with compost before planting to improve structure and moisture retention.
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3
Sow the Seeds
Plant seeds about 1 to 1.5 inches deep and 3 to 4 inches apart in rows spaced roughly 24 inches apart, keeping the soil consistently moist but not waterlogged in the days following planting.
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4
Consider Inoculant
Coating seeds with a rhizobium inoculant before planting helps soybeans form the root nodules responsible for nitrogen fixation, which is especially valuable in soil that has not grown legumes before.
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5
Water Consistently
Soybeans need about one inch of water per week, and steady moisture during flowering and pod fill is particularly important, as drought stress at those stages significantly reduces yield.
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6
Manage Weeds Early
Keep the area weeded during the first four to six weeks when young plants are establishing, since soybeans struggle to compete with aggressive weeds before their canopy fills in.
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7
Know When to Harvest
Soybean harvest time for edamame is when pods are plump and bright green, usually 70 to 80 days from planting, while beans for drying should be left until the pods turn tan and rattle when shaken.
Year-round care
Spring
- Sow after last frost
- prepare soil with compost
Summer
- Water regularly
- feed monthly
Fall
- Harvest before frost
- store well
Winter
- Rest
- store seeds cool and dry
Full specifications
Shipping
- Orders are delivered within 8 to 16 business days.
- All orders include tracking.
- Free shipping on all orders.
- Seeds are packed in moisture-resistant, resealable foil packets.
Germination
Germination rates vary depending on climate, soil conditions, and care. Seeds perform best when planted in the right season at the correct temperature, with consistent moisture and adequate light. We take quality seriously and each batch is tested before packaging. If you have concerns about your seeds, reach out and we will do our best to help.
Frequently asked
Questions about Soybean Seeds – Glycine max
How long do soybeans take to germinate?
Soybean germination typically occurs within 5 to 10 days when soil temperatures are in the optimal 65 to 85 degree Fahrenheit range. Cooler soils slow the process considerably and increase the risk of seed rot before sprouting. Germination depends on a combination of climate, soil temperature, moisture level, and overall seed care, so results will vary from one garden to the next.
What soil pH is best for growing soybeans?
Soybeans prefer a soil pH between 6.0 and 6.8, which keeps essential nutrients available and supports healthy root nodule formation for nitrogen fixation. If your soil is more acidic, working in agricultural lime a few weeks before planting can help raise the pH gradually. A simple soil test from a garden center or cooperative extension service is the most reliable way to know where you stand.
Can soybeans be grown in containers?
Soybean container gardening is possible, though it works better than many people expect when containers are large enough, at least 12 inches deep and wide per plant. Choose a bush-type variety for containers, as they stay more compact and manageable than sprawling types. Make sure the container has excellent drainage and be prepared to water more frequently than you would in ground beds, since pots dry out faster in warm weather.
When should I harvest soybeans for edamame?
For edamame, harvest when the pods are fully plump and a vivid green color, which usually happens around 70 to 85 days after planting depending on the variety and your growing conditions. The pods should feel firm when you squeeze them, with the beans inside filling out the shell tightly. Do not wait too long, as pods that begin yellowing have passed their eating stage and the beans will be starchy rather than sweet and tender.
Do soybeans need fertilizer?
Because soybeans are a nitrogen fixing legume, they generally do not need nitrogen fertilizer once root nodules are active and working. A modest amount of balanced fertilizer or compost worked into the soil before planting covers their phosphorus and potassium needs. Avoid heavy nitrogen applications mid-season, as excess nitrogen can actually discourage nodule formation and reduce the plant's natural soil-building benefit.
What USDA zones are suitable for soybeans?
Soybeans are grown successfully in USDA zones 2 through 11 as a warm-season annual, making them adaptable to a wide range of climates as long as they have a frost-free growing window of at least 75 to 120 days depending on the variety. In northern zones with short seasons, look for early-maturing varieties labeled with lower maturity numbers. In very hot southern climates, afternoon shade and consistent watering help plants set pods without excessive heat stress.
Are soybeans safe for pets?
Plain, cooked soybeans are generally considered non-toxic to dogs and cats in small amounts, but they are not a necessary or particularly beneficial part of a pet's diet. Raw soybeans contain compounds that can interfere with digestion and should not be fed to animals. If you have concerns about a specific pet with allergies or health conditions, consulting a veterinarian before offering any soy-based food is always a sensible approach.