How Long Does It Take For Soybeans To Germinate And Grow?

Soybeans (Glycine max) are a warm weather legume that can grow in many different climate conditions. There are lots of new hybrids today that mature quickly and can be planted very late in the growing season in areas where spring comes late. In this article, we discuss germination and growing of soybeans. Read on to learn more on how long does it take for soybeans to germinate & grow.

Different Varieties Of Soybeans Have Different Maturity Rates

different varieties of soybeans have different maturity rates

The rate of maturity for most soybean plants varies from about three months to about five months. Some hybrids that have been developed for planting in the northern United States mature in under three months.

Whenever you buy soybean seed, whether you are growing a commercial crop or a few plants in your veggie garden, be sure to read packaging materials carefully to be sure you are purchasing the right seed for your setting and your purpose.

Sprouting Soy Beans Is A Good Way To Study Germination

Soybeans for sprouting are inexpensive, and sprouts are tasty and full of nutrition. If you want to get a close up look at how soybeans germinate, you can try sprouting them in your kitchen for use in a wide variety of dishes. Here’s how:

1. Begin by purchasing soybeans especially meant for sprouting. You can buy these online or at your local health food store. Choose beans that are not overly large because very large beans must be soaked longer and rinsed and drained more often. They also do not drain as well and may tend to harbor fungal growth if you are not very careful.

2. You’ll need a colander or other draining implement that will provide good ventilation. You’ll also need a way to keep your sprouting beans at a temperature range of 68-70°F. If you are not able to maintain these temperatures, then you will want to go with larger beans. In spite of their drawbacks, they sprout better at lower temperatures.

3. Measure half a cup of dry soy beans. Sort through them to remove pebbles, sticks, etc.

4. Rinse the beans and put them into a quart jar. Fill the jar three quarters full with filtered water. Cover the jar with a mesh sprouting lid or sprouting screen or a clean cloth to keep errant bugs out and allow good air circulation.

5. Soak the beans overnight (8 hours) and then drain them and rinse them. Remove any skins that have come loose and are floating around in the water. You’ll do this three or four times daily until the beans sprout (germinate). They should sprout within a couple of days.

6. Continue this process until the “sprout tails” have reached the size you desire. When this happens, you can rinse and drain the sprouts one last time and then store them in the fridge in a covered container. This will stop their growth. You can keep them in the refrigerator for a week.

7. Use soybean sprouts in cooked dishes, such as stir fry. They must be fully cooked before eating.

How To Sprout Soybeans – Cheap And Easy Method

Seed Germination And Harvest Time

When planting soybeans in the field or garden (here is our article on the best time to plant), successful seed germination is dependent upon temperature and moisture. Under ideal conditions, germination should take two days. To be sure your seed germinates as quickly as possible, you must have a consistent soil temperature of 60 degrees Fahrenheit.

Cooler temperatures will delay germination, and for every three days that germination is delayed, harvest is delayed by one day. Additionally, later germination means later maturation, and that can result in a smaller harvest.

If your soybean seed does germinate within the two day time frame, the small plant will grow through the surface of the soil within the next five days. This is a very vulnerable time for the seedlings because they can be wiped out by a sudden cold snap or gobbled up by pests. If this happens, it’s a good idea to replant right away using a shorter maturing variety of soybeans.

Harvest Schedules Vary For Many Reasons

Keep track of the passage of time after you have your crop in the ground. When the projected maturity date for your soybeans nears, examine the plants carefully. Evaluate the weather when deciding on a harvest schedule. If you have had cool, wet weather conditions, maturity of your soybeans may be delayed by as much as ten days.

Nicky Ellis
Nicky has been an editor at Farm & Animals since 2019. Farm animals have been in her life from her earliest memories, and she learned to ride a horse when she was 5. She is a mom of three who spends all her free time with her family and friends, her mare Joy, or just sipping her favorite cup of tea.

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