Why you should soak some seeds before planting (2024)

It is traditional to soak some seeds before planting them. Soaking can accelerate germination and increase the proportion of seeds that successfully germinate.

Seeds have evolved a protective coating around the embryo so the embryo can survive being dispersed by some means. The coating protects the seeds until they find themselves in a suitable place to grow into a new plant. The seed coat that protects the embryo within, stays intact until the conditions, temperature, light and moisture, are suitable for germination. Seeds are dry and need water to initiate germination. The water softens and breaks the seed coat and may leach away germination inhibitors.

The water is usually in the soil where the seed falls, and when enough has been absorbed by the seed coat, germination begins. However, particularly in very sandy soils where the water drains away quickly, or heavy clay soils where water does not penetrate dry soil easily, soaking the seeds before planting will help initiate germination.

What Seeds Benefit from Soaking Prior to Planting?

Almost all seeds can be pre-soaked, but it is large seeds, seeds with thick coats and wrinkled seeds that will benefit most. Small seeds benefit less and are difficult to handle when wet.

Examples of seeds that benefit from soaking include peas, beets, cucumber, corn, squash, pumpkin and beans.

How to Soak Your Seeds

In a bowl, cover your seeds with warm water and leave to soak for 6-24 hours. Smaller seeds and those with thinner coats need the shorter time, and larger seeds with thicker coats need the longer period.

Some seeds will naturally float, and some will stay below the surface. Do not worry about those that float. The seeds will swell with absorption of the water.

Plant the seeds in the soil or seed mix immediately. This pre-soaking will hasten germination by a few days and up to a week.

01 June 2024
Why you should soak some seeds before planting (2024)

FAQs

Why you should soak some seeds before planting? ›

Soaking can accelerate germination and increase the proportion of seeds that successfully germinate. Seeds have evolved a protective coating around the embryo so the embryo can survive being dispersed by some means. The coating protects the seeds until they find themselves in a suitable place to grow into a new plant.

Why should you soak seeds before planting? ›

Pre-soaking seeds has a number of potential advantages: it triggers germination, speeds it up, provides a quick start where a short growing season for a vegetable is critical, and breaks down any inhibitors on the seed more quickly than in nature.

What is the purpose of taking soaked seeds? ›

Seeds are generally stored in dry form. Therefore, the soaking of seeds is done to soften them so that they can be cooked easily. Overtime, they absorb water and become soft and ready for cooking.

Why do some seeds need to be soaked or scratched? ›

Some seed coats are so hard that water and oxygen cannot get through until the coat breaks down. Soaking or scratching the seeds will help break down the seed coat. Morning glories and locust seeds are examples. Other seeds need to be exposed to proper temperatures.

Why are seeds soaked before the experiment? ›

Answer and Explanation:

In most germination experiments, seeds are soaked for 24 hours to allow them to absorb water and soften the testa/ seedcoat.

What seeds should not be soaked? ›

By soaking the seed, it enables the new growth from the inside to push through the hard shell and grow. The seeds that could benefit from a good soaking include: corn, pumpkin, beans, chard, beets, and peas. The seeds you shouldn't soak include: carrots, lettuce, radish, celery, turnips, and spinach.

Why is it important to clean seeds before planting? ›

Contamination of seeds can occur during the seed harvesting process, handling, or storage. Contaminants may include plant material, inert material, or other types of seeds. Contaminated seeds can lead to reduced germination rates and poor crop performance.

Can we eat seeds without soaking? ›

Your body can better absorb nutrients if you soak nuts and seeds. Nutrient-dense nuts and seeds include nutrient inhibitors that guard and guarantee the survival of those nutrients. By soaking nuts and seeds, you can reduce or get rid of the harmful and nutritious inhibitors that are absorbed into the water.

Should tomato seeds be soaked before planting? ›

The technique is proven by biological scientist. During the study the tomato seeds were soaked for 12, 24 and 36 hours, and the best results were achieved after a 24 hour soak. So if you have older seeds or you late with the sowings then you can just soak the tomato seeds in water for a day to speed up the germination.

What is the recommended soaking time for seeds? ›

Pre-germination - Submerge seeds in water for 12−24 hrs or until small shoots appear at the end of the seed. In colder weather, seeds may need to be soaked for 36−48 hrs.

What happens if you soak seeds too long? ›

However, soaking isn't a silver bullet for germination problems. Soak the wrong seeds for too long and you risk 'drowning' them, where they begin to rot and ferment before germination can start. On a more practical level, soaking adds another layer of complexity to the whole plant-growing process.

Why does a soaked seed always germinate? ›

They need air ,water and warmth for germination. Soaked seeds contain appropriate amount of water to germinate easily. But dry seed does not . So,dry seed cannot germinate.

What happens if seeds get wet before planting? ›

The answer to your question is pretty iffy - If the seeds got wet enough to swell, they should have been planted immediately. If only the packaging got wet, they're probably okay for short-term storage, but should be planted as soon as possible.

Why is it important to soak seeds? ›

Soaking can accelerate germination and increase the proportion of seeds that successfully germinate. Seeds have evolved a protective coating around the embryo so the embryo can survive being dispersed by some means. The coating protects the seeds until they find themselves in a suitable place to grow into a new plant.

Why do seeds need wet? ›

Water provides energy. Water activates the chlorophyll molecules so that photosynthesis can begin. Water dissolves the minerals in the soil so that they become available to the seed. Because water has a neutral pH, it balances the soil pH and makes it favorable for seed germination.

What happened when seeds are soaked in water? ›

Seeds absorb water when soaked. This makes them soft and big. Soaked seeds germinate faster. It is also easy to cook them.

Should soaking seeds float or sink? ›

If the seeds sink, they are still viable; if they float, discard, because they probably will not sprout. Question: Can the seeds that sink still be planted? Answer: Yes. Sow the seeds directly in the soil if it is the proper planting time or thoroughly dry seeds and plant when it is the appropriate time.

What happens to a seed when it is soaked in water overnight? ›

Seeds absorb water when soaked. This makes them soft and big. Soaked seeds germinate faster. It is also easy to cook them.

Why must seeds absorb water before germinating? ›

Water plays an important role in seed germination. It helps by providing necessary hydration for the vital activities of protoplasm, provides dissolved oxygen for the growing embryo, softens the seed coats and increases the seed permeability.

Which seeds should be soaked before eating? ›

Pine nuts, sunflower seeds, watermelon seeds and pumpkin seeds are all seeds that need to be soaked. Their soaking method mimics how we soak nuts: For every 4 cups of raw seeds, cover with room temperature, filtered water by two inches, and 2 teaspoons sea salt. Stir well to dissolve the salt.

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