Seed Screen Sizes

seed screen sizes

Crop

Screen Size

Bean, Broad

14.5 – 25.5 mm

Bean, French

4.5 – 13.5 mm

Bean, Runner

10 – 13.5 mm

Beatleaf

3 – 8 mm

Beetroot

3 – 8 mm

Broccoli, Calabrese

1 – 3 mm

Cabbage

1 – 3 mm

Carrot

2 – 6 mm

Cauliflower

1 – 3 mm

Celeriac

1 – 2 mm

Celery

1 – 2 mm

Chicory

1 – 4 mm

Chives

1 – 3 mm

Coriander

2 – 6 mm

Crops

Screen Size

Dill

2 – 6 mm

Fennel

2 – 5 mm

Kale

1 – 3 mm

Kohlrabi

1 – 3 mm

Leek

1.5 – 3.5 mm

Lettuce

1×20 – 2×20 mm

Maize, Sweetcorn

4 – 10.5 mm

Mustard greens

1 – 3 mm

Onion

1.5 – 3.5 mm

Parsley

1 – 3 mm

Parsnip

5 – 9.5 mm

Pea

2 – 12 mm

Radish

2 – 4 mm

Rocket

1 – 3 mm

Spinach

1.5 – 5 mm

Sunflower

4 – 12.5 mm

Swede

1 – 3 mm

Turnip

1 – 3 mm

Vegetable species list

seeds per gram

Crop

Seeds per gram (number of seeds/g)*

Aubergine

240 – 390

Basil

560 – 700

Basil, Thai

1,110

Bean, Broad

1 – 2/ 1.3g

Bean, French

2 – 10

Bean, Runner

1 – 2

Beet leaf

50 – 70

Beetroot

40 – 90

Borage

65 – 70

Brussels Sprouts

270

Cabbage

220 – 390

Calabrese, Broccoli

300 – 315

Calendula

66 – 150

Peppers, Chillies

110 – 250

Carrot

400 – 1,200

Cauliflower

255 – 350

Celeriac

3,125

Celery

1,780 – 2,500

Celery Leaf

2,940

Chives

960

Coriander

70 – 110

Cornflower

408

Cosmos

100

Courgette

2 – 11

Cucumber

40

Dill

495 – 900

Endive

900

Fennel

300

French Marigold

4,200

Pea (wrinkled, round, sugar)

2 – 6

Kale

200 – 400

Kohlrabi

220 – 280

Leek

300 – 430

Lettuce

600 – 1,200

Nasturtium

6 – 7

Nigella

360

Maize, Sweetcorn

5 – 10

Onion

250 – 400

Oriental greens

300 – 800

Parsley

500 – 700

Parsnip

140 – 200

Phacelia

830

Radish

90 – 140

Rocket

500 – 630  

Sorrel

1,020

Spinach

60 – 80

Squash, Pumpkin

4 – 15

Sunflower

10 – 20

Tomato

220 – 500

Turnip

300 – 1,200

*Please note:  The wide span of seeds per gram within some crops is mainly based on variations of the seed weight of different cultivars. That means, e.g. there are lettuces that will have 600 seeds per gram and lettuces that will have 1,200 seeds per g and everything in between. Please treat the numbers given as approximations.

Vegetable species list

Vegetable species reference table

A-Z by vegetable name

Vegetable

Species

AubergineSolanum melongena
Beetroot Beta vulgaris
Broad beans Vicia faba
BrocolliBrassica oleraceae
Calabrese, cauliflowerBrassica oleraceae
CarrotDaucus carota
CeleriacApium graveolens
Celery Apium graveolens
Chard Beta vulgaris
ChicoryCichorium intybus
Climbing French beansPhaseolus vulgaris
CorrianderCoriandrum sativum
Cucumbers Cucumis sativus
Dwarf French beansPhaseolus vulgaris
EndiveCichorium endiva
Fennel Foeniculum vulgare
LeekAllium ameloprasum
LettuceLactuca sativa
Mustards Brassica juncea
Onion Allium cepa
Oriental greens Brassica rapa 
ParsleyPetroselinum crispum
Parsnip Pastinaca sativa
PeasPisum sativum
Peppers

Capsicum annum complex / baccatum / pubescens

Perpetual spinachBeta vulgaris
PSB, cabbage,Brassica oleraceae
RadishRaphanus sativus
Runner beansPhaseolus coccineus
Spinach Spinacia oleraceae

Spring onion

Red Onion

Allium cepa

Allium cepa

Summer squash Cucurbita pepo
Swede, Siberian kale Brassica napus
Sweetcorn Zea mays
Tomatoes

Solanum lycopersicum

Turnip Brassica rapa 
Winter squash 

Cucurbita maxima / pepo / moschata

A-Z by species name

Species

Vegetable

Allium ameloprasumLeek, elephant garlic
Allium cepaOnion, spring onion
Apium graveolensCeleriac, celery
Beta vulgarisBeetroot, chard, perpetual spinach, sugar beet 
Brassica junceaMustards 
Brassica napusSwede, Siberian kale 
Brassica oleraceaeBrocolli, cauliflower, cabbage, kale, kohlrabi, Brussels sprouts, 
Brassica rapa Turnip, oriental greens

Capsicum annum complex / baccatum / pubescens

Peppers, chillies
Cichorium endivaEndive
Cichorium intybusChicory
Coriandrum sativumCorriander
Cucumis sativusCucumbers 

Cucurbita maxima / pepo / moschata

Winter squash 
Cucurbita pepoSummer squash 
Daucus carotaCarrot
Foeniculum vulgareFennel 
Lactuca sativaLettuce, celtuce
Pastinaca sativaParsnip 
Petroselinum crispumParsley
Phaseolus coccineusRunner beans
Phaseolus vulgarisClimbing French beans, dwarf French beans
Pisum sativumPeas
Raphanus sativusRadish, winter radish

Solanum lycopersicum

Tomatoes
Solanum melongenaAubergine
Spinacia oleraceaeSpinach 
Vicia fabaBroad beans, field beans, fava beans
Zea maysSweetcorn, maize
Posted on

Vital Seeds online seed shop launch and autumn news

Traingle Flashback / Zeolights Calendula

We are delighted to announce that as of Monday 8th October, our online seed shop is open for business.  We are very pleased with our website, and hope that it will be easy to navigate your way around. We have added a nice feature in the menu where you can view seeds by ‘product tag’ such as ‘suitable for containers’, ‘easy to save seed from’, or ’fun for kids’. We are very open to suggestions on what we can do to improve it so please do not hesitate to get in touch.

Autumn is a time for reflection. As the nights start to draw in and the leaves turn we are taking a few deep breaths and reflecting on a year that we will certainly never forget. We have come a very long way since Vital Seeds was born at the end of 2017. Our planned growing site, connected to an existing organic farm, unfortunately fell through early in the Spring at a very critical time for plant propagation. Fred’s bedroom quickly filled up with tiny seedlings as the search for an earthy home for them re-started in earnest. In the end we were very kindly supported by our friends at two local organisations who both offered us some pieces of land to bed in our seedlings for this season. These organisations are Chagfood CSA (community supported agriculture) in the Dartmoor town of Chagford, and Embercombe, in the picturesque Teign Valley. We are immensely grateful to both of these organisations for allowing us to use some of their precious growing space.

This year we have produced seed of many annual crops, including tomatoes, courgettes, peas, beans, lettuce and squash, and we have planted many biennial crops which we will save seed from next year including kales, beetroot, chives, shallots, leeks and celery. We also used this year to trial many different varieties of veg to see which we would most like to grow and sell in the future. We trialled about ten varieties of lettuce, six sugar-snap peas, three varieties of sweetcorn, and five dwarf French beans.

In May, Ronja Schlumberger joined the team (a team of one up until then!), which has been a huge blessing. Amongst many other things Ronja is responsible for most of the beautiful photos we have on our website. Photographing varieties for our catalogue has been no small task, and we still have more to get next year.

In July we moved into our office space in an old reception room at our friends’ farm in Drewsteignton, it was great fun to give the room a total makeover and get all of our stuff installed in there so we could start packing up seed and germination-testing everything.

We are still looking for a permanent home for the project from next Spring, in or around the South Devon area so if you know of some decent land for seed growing (couple of acres, flat-ish etc) please get in touch, we would be eternally grateful.

There is much more to say but no doubt you are all busy so I will wrap it up there.

We wish you all well

Fred and Ronja

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2027 Catalogue now live!

OSSI logo

We only sell varieties that we know you will love (because we love them!). A core part of our mission is to increase the availability and variety of organic seeds for UK gardeners and growers. 

Save money - Save the planet - Save seeds

Photo by Jody Daunton – www.jodydaunton.co.uk / www.anotherescape.com

None of our seed is hybrid or GMO, so you can save your own seed from them too. Indeed, part of our mission is to re-skill gardeners and growers in how to save their own seed. We think that this is such an important skill and that all gardeners and growers should have some knowledge of seed-saving.

On our resources page you can find useful information to do with seed-saving, such as how-to guides and videos, links to other organisations working with seed (e.g. Gaia Foundation and Organic Seed Alliance , and also books and publications. We will be constantly developing this area of the site keep an eye of for more content coming soon.

Our plastic free pledge – we are committed to creating a sustainable food system, and part of that commitment is to avoid single-use plastics. All of our packaging is plastic-free and home-compostable so you can relax in the knowledge that you are not contributing to unnecessary plastic pollution

Large packs now available of selected varieties