In general, two to three seeds should be planted per hole. Seeds do not grow in a perfect environment so you should expect there to be some failure when planting them out.
Do not exceed three seeds per hole. If more than one germinates, remove the extras from the soil line as well. This prevents the nuisance of the seedling roots on the one you will continue to grow during thinning.
How Many Seeds To Plant in One Hole?
The old question from the beginning of gardeners is often How Many Seeds To Plant in One Hole? or per pot. There is no standard answer. Several factors constitute seed planting numbers. Read on to find out more.
How Many Seeds per Hole?
The size and age of the seeds to be planted are calculated in the equation. The same goes for the expected germination rate for each seed type. To find out the expected germination rate for each seed type, it is usually found in the information on the back of the seed pack, or you can search the internet.
Seed age is also a factor. We expect the seeds to be fresh when packaged, but after that, the only indication of their true age is the expiration date on the package. Some seeds are still viable after their expiration date.
Maybe we have leftover seeds from last year’s plantations. These seeds will most likely germinate. These are situations where we will increase the number of seeds per hole. Some gardeners always plant at least two to three seeds per hole, just in case.
Number of Seeds per Hole During Planting
Depending on the germination rate and how fresh the tiny seeds maybe, plant two or three per hole. Some herbs and flowering ornamental plants grow from tiny seeds.
Often, all the seeds will germinate, but this is not a problem with these plants. You can let it all grow together. If all the seedlings that grow are not of the highest quality, remove them to the ground line instead of pulling, leaving in place the best plants.
When planting medium-sized seeds that may be old, make the holes a little bigger if you plant two or three. Do not exceed three seeds per hole. If more than one sprout, also pull extra in the ground line. This prevents the seedling roots from being disturbed by the fact that you will continue to grow when you thin them.
Do not add more than one large seed to a hole. If you are trying a certain number of plants or just want a fuller pot, plant the large seeds closer. You can shoot or shoot those that are very close. Remember, plants need good airflow around them to avoid damping.
Other Factors Affecting Seed Planting Numbers
Some seeds have a thick outer shell. These germinate more easily if soaked overnight or sprayed with a sharp tool. Plant them later, depending on the size.
Some seeds need light to germinate. If this is the case with the seeds you are planting, do not leave extra seeds in the hole to prevent others from getting light. You can cover the seeds with a light layer of perlite or coarse sand to allow light to pass through.
Growing plants from seeds are the best way to get unusual varieties. It’s less expensive than buying all your plants. Now that you know the basics of how many seeds to plant per hole, you are one step closer to successfully growing your seedlings.
Seed Germination Rates
Many suggest that one seed per hole is fairly standard, but we’d like to suggest placing two seeds – or even up to three – in a hole when planting to maximize the chances of a successful fruit.
This is because the more seeds there are, the more likely you are to have perfect germination rates.
To understand why two seeds are better than one and not a waste, let’s talk a little about seed germination rates.
Essentially, seed germination rates are the odds that the seed will successfully sprout and grow into a plant. Each type of plant has a different seed germination rate, so it’s important to take this into account when growing your garden.
Tomatoes have an approximate 75% seed germination rate, which is relatively high but means that if you plant 50 seeds, only 37 of them will successfully germinate.
Basically, there is a one in four chance that the plant will not grow or a 25% chance that the seed will fail, and that does not count other factors that can potentially influence this rate, such as the age of the seed used.
If you plant two seeds instead of one in a hole, the chances of that hole failing to grow fruit are greatly reduced.
How to Plant a Seed?
A pot, a little potting soil, and a seed: that’s all it takes to have the pleasure of witnessing the miracle of the germination and growth of a plant!
Choose Your Seeds
Learn to distinguish between fine seeds and large seeds:
- Fine seeds are best sown in the ground, broadcast, or in furrows.
- The large seeds are ideal for planting in pots.
Fill a Pot With Potting Soil
This step is very simple to perform, however, you must follow the instructions to the letter in order to successfully germinate your seeds:
- Get a terracotta garden pot with a hole in the bottom. Place it on a saucer.
- Pour a layer of gravel or clay balls (about 3 cm) into the bottom of the pot: these materials will prevent the roots from being in permanent contact with humidity and from rotting.
- Fill the pot with potting soil or garden soil and tamp down with your hand.
Plant the Seed
Your pot is ready to receive the seed, do the following:
- With a pencil, make a hole 3 or 4 cm deep in the soil.
- At the bottom of the hole, place not 1 but 3 seeds to ensure the germination of a minimum seed.
- Backfill the hole by hand and tamp the soil.
- Water the hole with a watering can be fitted with its head.
Monitor Germination and Plant Growth
It is not enough to plant the seed, also pay attention to the following stages, namely the germination and the growth of the plant.
- Water the pot regularly (every 2 or 3 days) to keep the soil moist, without soaking it.
- After a few days, one or more shoots will appear. Let them grow for about 1 week.
- Then choose the most vigorous seedling and uproot the others: this is called “thinning” and allows the selected seedling to benefit from the best development conditions.
- Continue to water the pot regularly: the plant will develop and then flower about 8 weeks after sowing.
The short answer to the question “How Many Seeds To Plant in One Hole?” is that you will need to plant a few more than if you were planting in individual holes. If you are planting a lot of seeds, you will have to plant a few more than the number of seeds you would plant in individual holes.