Microgreen Seed Density Calculator
This is a free public tool to help you figure out how much seed you should sow per tray, per crop variety, depending on the size of your trays. We recommend using these values as a starting point, and then experimenting to find what works best for you. Varieties with a * after them are based on the seed densities used by our co-founder Garrett Corwin at his farm Piedmont Microgreens. You can read more in our yield and sow density cheatsheet.
Variety
Amaranth *
Anise
Arugula *
Barley
Basil, Genovese *
Basil, Lemon *
Basil, Purple *
Beet *
Borage
Broccoli *
Brussel Sprouts
Buckwheat
Cabbage *
Cantaloupe *
Carrot
Cauliflower *
Celery *
Chard, Magenta *
Chard, Red *
Chard, Yellow *
Chervil *
Chia
Chives
Chrysanthemum/Shungiku
Cilantro *
Clover
Collards
Corn
Cress
Cucumber
Dandelion
Dill *
Dun Pea
Endive
Fava *
Fennel *
Fenugreek
Flax
Kale *
Kohlrabi *
Komatsuna (Mustard Spinach)
Leek
Lemon Balm
Lemon Mint
Lettuce *
Lovage
Mahogany (Chinese)
Marigold/Tangerine Lace
Marjoram
Mint
Mustard *
Mustard, Mizuna
Nasturtium *
Onion *
Orach
Oregano
Pak Choi
Parsley *
Pea, Basic *
Pea, Tendril *
Purslane
Quinoa
Radish, Daikon *
Radish, Rambo *
Radish, Triton *
Red Choi *
Rutabaga
Sage
Salad Burnet
Shiso, Bicolor *
Shiso, Green *
Shiso, Purple *
Sorrel, Red Veined *
Spinach
Sunflower *
Tarragon
Tatsoi
Thyme
Tokyo Bekana
Turnip
Wasabi
Wheatgrass
Target Weight (g)
Safe Range (g)
9 - 11
1.8 - 2.2
10.8 - 13.2
108 - 132
3.6 - 4.4
3.6 - 4.4
3.6 - 4.4
31.5 - 38.5
27 - 33
19.8 - 24.2
18 - 22
108 - 132
17.1 - 20.9
27 - 33
10.8 - 13.2
18 - 22
3.6 - 4.4
31.5 - 38.5
31.5 - 38.5
27 - 33
18 - 22
22.5 - 27.5
27 - 33
18 - 22
36 - 44
18 - 22
18 - 22
135 - 165
9 - 11
27 - 33
9 - 11
18 - 22
270 - 330
9 - 11
270 - 330
18 - 22
18 - 22
10.8 - 13.2
19.8 - 24.2
14.4 - 17.6
10.8 - 13.2
27 - 33
0.9 - 1.1
0.9 - 1.1
9 - 11
16.2 - 19.8
27 - 33
5.4 - 6.6
0.9 - 1.1
0.9 - 1.1
9 - 11
10.8 - 13.2
90 - 110
31.5 - 38.5
10.8 - 13.2
0.9 - 1.1
14.4 - 17.6
10.8 - 13.2
270 - 330
270 - 330
18 - 22
12.6 - 15.4
36 - 44
36 - 44
36 - 44
10.8 - 13.2
16.2 - 19.8
3.6 - 4.4
7.2 - 8.8
3.6 - 4.4
10.8 - 13.2
7.2 - 8.8
0.9 - 1.1
36 - 44
108 - 132
2.7 - 3.3
9 - 11
2.7 - 3.3
14.4 - 17.6
12.6 - 15.4
10.8 - 13.2
108 - 132
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