Gardeners of all levels will greatly benefit from knowing the time it takes for a specific vegetable seed to sprout.
As a first step you will be able to determine when you should plant seeds and when to plant seeds. Additionally, it reduces lots of strain to your nerve system.
For instance is it important that the carrot didn’t sprout in five days, even if the time for germination can last between 14 and 15 days? On the contrary, isn’t it slightly too late?
To make it simpler to you, I’ve put together this list of the most commonly used time for sprouting a vegetable to make it easier for you.
Because temperature influences the germination of seeds, I’ve listed the ideal and minimum temperatures for the first sprouts to begin appearing.
Table of germination for vegetable crop seeds
|Vegetables||From sowing to the time of sprouting on the ground (days)||From sowing to the seeds sprouting inside (days)||Minimum germination temperature degF (degC)||From the moment of sprouting until harvesting early crop seeds||The number of days between the time that plants sprout to the harvest of medium-early or middle-late varieties||From the moment of sprouting until harvesting late-maturing crop plants|
|Watermelon||10-15||7-10||59-63 degF (15-17 degC)||55-85||85-105||100 or more|
|Eggplant||10-14||8-10||55-57 degF (13-14 degC)||90-110||110-130||135 and above|
|Beans||4-8||3-5||37-39 degF (3-4 degC)||72-87||90-110||112-130|
|Peas||4-7||3-5||39-43 degF (4-6 degC)||45-60||60-95||95-120|
|Melon||7-10||5-7||59-63 degF (15-17 degC)||45-75||75-95||100 or more|
|Zucchini, Pattypan||7-8||4-6||50-54 degF(10-12 degC)||33-50||50-70||75 and over|
|Cabbage||4-6||3-5||35-37 degF (2-3 degC)||45-90*||90-130*||130-180|
|Cauliflower||4-6||3-5||35-37 degF (2-3 degC)||55-85 (25-75*)||85-100 (75-85*)||110 and more|
|Sweet Corn||6-10||4-6||45-50 degF (7-10 degC)||60-78||78-100||100 and higher|
|Onion||14-18||8-14||35-37 degF (2-3 degC)||83-120**||120-125**||130 and higher|
|Leek||20-22||10-12||54 degF (12 degC)||150-160||160-175||180|
|Carrot||15-20||9-12||39-41 degF (4-5 degC)||50-80||80-125||125-150|
|Cucumber||5-8||4-6||55-57 degF (13-14 degC)||40-45||45-50||50 or more|
|Sweet and Spicy Pepper||14-16||9-12||39-41 degF (4-5 degC)||90-110***||110-135||135 and above|
|Radish||4-6||3-5||33-35 degF (1-2 degC)||20-30||31-35||36-45|
|Turnip||5-7||3-5||33-35 degF (1-2 degC)||35-65||65-110||110-120|
|Lettuce||8-10||4-6||35-37 degF (2-3 degC)||30-50||50-75||75-100|
|Beetroot||10-16||7-10||41-43 degF (5-6 degC)||60-100||100-110||Up to 130|
|Celeriac||–||15-18||37-41 degF (3-5 degC)||100-130||130-175||180-200|
|Tomato||5-8||4-6||50-52 degF (10-11 degC)||65-110||111-120||120 and above|
|Pumpkin||7-8||4-6||50-54 degF(10-12 degC)||75-100||100-120||Over 124|
|Green beans||6-10||4-7||50-54 degF(10-12 degC)||45-50||55-65||65-85|
|Garlic||10-17||–||35-41 degF (2-5 degC)||80-90||90-125||120 or more|
|Spinach||8-12||–||33-35 degF (1-2 degC)||15-25||25-35||35-40|
* The time for the cabbage to mature after the seedlings are planted in the ground.
*Onions cultivated from seedlings mature three weeks earlier.
*The process of maturation of peppers. The biological maturation takes place 20 days further.
Shelf Life of Vegetable Seeds
|Vegetables||The weight 1,000 seeds (grams)||The number of seeds per 1g (Pieces)||Shelf Life (years)|
|Welsh onions and leeks||2.0-4.0||400+-150||3 (4)|
|Garden rhubarb||7.0-11.0||150+-30||3 (3)|
|Green beans||150.0-550.0||3+-0.5||5 (7)|
Remember that every seed has an expiration date , after which they cease to grow.
For instance the shelf life of celery seeds onion, leeks, sorrel and rhubarb is approximately 2 years; dill and parsley last for 3-4 years. peas and carrots, radish.
Turnips can last for 4 to 6 years, while watermelon and melons last for between 6 and 8 years.
There is a possibility to preserve beet seeds for as long as 20 years. However beans can be viable for as long as 700 years, before losing the ability to germinate.
There isn’t a absolute rule of thumb regarding how to store seeds of vegetables without affecting the germination process.
The seeds of many crops are stored for longer periods of time when certain conditions (proper temperature, humidity, and the tightness) are satisfied.
However, the storage conditions affect the germination process of seeds.
To determine if germination is occurring You don’t have to collect a large amount of seeds. It is possible to do so with just 8-10 pieces.
The seeds can be placed covered in gauze in an oven-safe dish or in foil for them to stay warm. Make sure to ventilate them at least once per day to avoid mold and then check to see whether they’ve developed.
Note Seeds that have sprouts or roots that have sprouted are seeds that have sprouted.
The time to spruce up for each crop is different based on the time of year (see the table above).
Do not bother to plant if your zucchini or radish seeds aren’t sprouting after seven or 10 days. They won’t sprout in your vegetable garden if they’ve not sprouted at home.
How to Accelerate Germination
It takes a long time seeds of crops such as celery, carrots, and parsley to sprout because the essential oils contained in their shells stop water from reaching the embryo.
So, prior to planting these plants, you’ll have to treat the seeds.
For these plants I prefer blotting paper or a piece of cloth for covering the seeds prior to setting them into a bowl that has an even layer of water that is 115-125 degrees (45-55 degrees Celsius).
I let them rest for around 15 minutes before going forward. It’s during this time that the majority of the essential oils will disintegrate.
Then, I wash the cotton cloth and seeds several times with cool water. Then, I dry them until they’re free of the cloth.
Here you go. It is possible to sow seeds. This way seeds will germinate faster.
How To Improve Seed Germination
In some instances, the tests showed that seeds had germinated successfully. After that, you put seeds in a pot for them to grow but they didn’t sprout. What do you do now?
Seedlings can easily “forced” out of the soil easily. However, it’s best to a tiny amount of seeds. Begin by breathing into a bag made of plastic that has your seed container in.
Then, you can quickly tie the bag , and then put it back into its original place. Seedlings will benefit from the large amount of carbon dioxide that you breathe from the bag. The first sprouts will begin to appear shortly.
Heating may speed up the process of germination. To achieve this, put seeds in an empty thermos filled with water and heated to a temperature of 115-125 degrees F (45-55 degrees Celsius). Then, place the seeds in it for at least 6 hours.
Avoid using this method to harvest tomatoes!
To ensure they are more durable To make them more durable, go through the process of hardening them first. Then, wash the seeds with saltwater.
It is also recommended to wash them using manganese-based solutions and colloidal silver.
Then, place the pot of seeds in the bag of plastic and place it in the refrigerator in which you can keep the seeds of your vegetables for between 10 and 12 hours.
For the next week, continue this procedure each day. The seeds were left at room temperatures over 12 hours. The remaining 12 hours will be stored kept in the fridge.