January 21, 2026

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The number of seeds in 1 gram, the term and temperature of germination – tips for gardeners

In this article you will find a plate that describes: how many seeds contain 1 gram of vegetable crop; what is the optimum temperature for seed germination; how many days should the seeds germinate at the optimal temperature; how many plants do you need to plant per 1 m2; To what depth should the seeds be buried when sowing.

Spring is approaching, and this is the time for sowing seedlings of some vegetable crops. Most gardeners plant an excessive amount of vegetable seeds and then do not know where to plant the excess. In this article, we will help you calculate the number of seeds.

Sowing seeds for seedlings

How to determine the right number of seeds?

In order to roughly determine the number of vegetable crops, you need to know how many beds, what area and what crops you will plant. Based on this, it is necessary to calculate the required number of seeds.

Seeding rate in grams of the most common vegetable crops per 10 m2; : lettuce seeds – 2-3 g, carrots – 5-6 g, beets – 10-12 g, zucchini seeds – 3-4 g, cucumber – 6-8 g, onion seedlings – 5 g, radishes – 18-20 g …

According to the size, the seeds of vegetable crops are divided into:

very large – these are seeds of beans, pumpkin, peas, zucchini, beans, corn, squash; in 1 gram of such seeds there are up to 10 pieces;

large – for example, in beets, melon, watermelon, cucumber, pepper, rhubarb, radish, radish, asparagus, spinach; in 1 gram of such seeds there are from 10 to 100 pieces;

medium size – for example, in cabbage of all kinds, spinach, arugula, tomato, pepper, eggplant; there are from 150 to 350 of them in one gram;

small and very small – for example, carrots, parsley, lettuce, turnips, basil, watercress, sorrel; In 1 gram of such seeds, there are from 600 to 5000 pieces.

How many vegetables to plant for a family ?

So, we offer you a plate that describes: how many seeds contain 1 gram of vegetable crop; what is the optimum temperature for seed germination; how many days should the seeds germinate at the optimal temperature; how many plants should be planted per 1 m2; to what depth should the seeds be buried when sowing.

Number of seeds in 1 gram – plate

Name of culture Number of seeds per 1 g Optimum seed germination temperature in degrees Celsius Number of days from sowing to germination Seed sowing rate per 1m2 Seed planting depth,cm
Basil 600-900 25-27 10-14 0,5-0,6 0,5-1
Eggplant 200-250 25-30 8-12 3-5 pcs,004g 1-2
Cucumber 40-50 25-30 7 0,15 2-3
Pepper 130-200 25-30 14 0,04-0,05 1-2
Tomatoes 250-300 22-26 8-12 3-5pcs,008 1-2
Physalis 100-120 22-25 7-8 0,1—0,3 1
Spinach 90-170 15-20 8-10 30-50pcs2-5 1-2
Leaf lettuce, head 600-1000 18-20 5-7 0,2-0,3 1-2
Arugula 350-400 16-18 3-10 0,13-0,15 1-1,5
White cabbage 200-300 17-20 5-6 4-8 pcs,04 1,5-2
Broccoli cabbage
Brussels sprouts 250-330 17-20 6-10 4-6 2
Chinese cabbage 250-300 17-20 5-10 5-7pcs.7 2
Kohlrabi cabbage 250-300 17-20 5-10 7-9pcs,8 2
Peking cabbage 250-330 17-20 8-10 7-9 pcs,6 1,5-2
Savoy cabbage 250-330 17-20 6-8 4-7 pcs 1,5-2
Cauliflower 250-330 17-20 6-7 4-7 pcs 1,5-2
Redhead cabbage 250-330 17-20 5-6 4-9 pcs 1,5-2
Peas 3-10 16-18 5-8 20-40pcs 3-5
Vegetable beans 2-5 17-19 7-9 10-12 4
Name of culture Number of seeds per 1 g Optimum seed germination temperature in degrees Celsius Number of days from sowing to germination Seed sowing rate per 1m2 Seed planting depth,cm
Asparagus beans 2-5 18-22 4-8 30-60 4
Watercress 350-500 15 3-4 0,8 0,5-1
Dill 600-900 15-20 3,5 0,05 0,5-1,5
Corn 5-8 18-20 10 6-9 3-5
Carrots 700-1200 17-20 9-15 0,2-0,3 2
Beetroot 50-70 20-22 8-14 50-90 2-4
Squash, squash 6-10 20-25 6-8 1-5 3-4
Pumpkin 5-8 18-24 5-7 3-7 3-6
Watermelon 30-35 25-30 5-7 1-5pcs 2-3
Watermelon 6-25 24-30 7-10 8-10 3
Bobby 1-2 18-25 3-5 8-10 3-5
Parsley 800-1300 17-20 14-15 0,3-0.5 1-2
Celery 2000-2600 25-28 20-25 10-12 0,5
Radish 90-130 20-24 5-8 2-4 1,5-2
Radish 100-150 20-25 3-5 0,4-1 2-3
Turnip 300-600 18 3-4 0,3 1-2
Onions 200-350 18-20 11-16 100 2-3
Sorrel 500-1200 20 8-14 1,5-2 1-2
Strawberries 1700-2000 20-25 14-20 0,2 On the ground