Open box of 20 packets of organic tomato seeds fanned out on a white background

Whole heritage tomatoes, a sliced tomato and a pile of seeds, an example of the variety type grown

Ripe heritage tomato in close-up, dark purple-brown skin and green calyx at the stem

Young tomato seedlings in pots, at the transplanting stage, on a potting bench

Tomato sowing diagram: depth 1 cm, germination at 20 to 25 °C, sowing window February to April

Organic tomato seed collection, 10 or 20 varieties

Name: Organic tomato seed collection, 10 or 20 varieties
Brand: ZenGreens
SKU: bced817a-57a5-4e93-a8ba-001be9f90179
Price: 26.0 USD
Availability: OutOfStock

$37.00

Cherry, cocktail, ribbed, elongated sauce tomatoes or colourful heritage varieties, the 10 or 20 organic tomato varieties in this set each have their own packet. They can be sown under cover from February and planted out after the last frosts.

Ref. bced817a-57a5-4e93-a8ba-001be9f90179·Vegetable seeds

Assortment : Tomato 20

Tomato 10

Tomato 20

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The summary

What you receive: a gift box of organic tomato seed packets, one variety per packet.
The varieties: in the box of 20, Green Zebra, San Marzano, Roma, Brandywine, Cuore di Bue, Noire de Crimée, Citrina and the cherry tomato Figiel Orange.
When to sow: February to April, under cover.
Sowing depth and germination: 1 cm, then 6 to 8 days at 20 to 25 °C.
What comes next: transplanting into individual pots at the two true-leaf stage, planting out after the last frost.
Saving your own seed: all varieties are open-pollinated, collect seed from a ripe fruit and ferment for 2 to 3 days.

Box of 10 or 20 varieties of open-pollinated tomatoes, to sow under cover from February

The ZenGreens organic tomato seed box brings together 10 or 20 open-pollinated varieties, with one packet per variety, from the Figiel Orange cherry to the San Marzano for sauce. Seedlings are started under cover from February to April, at a depth of 1 cm and at 20 to 25 °C, with germination in 6 to 8 days.

The 20-variety box gives you 20 packets, one tomato per packet, in a paper carton: the green-striped Green Zebra, San Marzano and Roma for sauces, the beefsteaks Brandywine and Cuore di Bue, Noire de Crimée, the lemon-yellow Citrina and several cherries including Figiel Orange. The 10-variety box follows the same principle, with 10 packets of one variety each.

🍅 Very different varieties

The tomatoes in the set differ in fruit size, harvest date and use in the kitchen. The cherry types crop early and in trusses, are eaten raw and cope well with pot growing. Salad tomatoes, such as Green Zebra, are cut into thick slices and are harvested in high season. Beefsteak types come last, sometimes weigh 500 g each and need a sturdy stake, whereas San Marzano has little juice and few seeds, which makes it ideal for preserving and slow-cooked sauce. Because these types do not ripen at the same time, you pick the first cherry tomatoes in July, while the large, fleshy fruit ripen mostly from August onwards.

Green Zebra

A green and yellow salad tomato with a pleasantly sharp flavour, harvested when the skin turns golden without ever going red.

San Marzano

The elongated Italian preserving tomato, with dense flesh and few seed cavities, which reduces without releasing water during cooking.

Beefsteak tomato

Brandywine and Cuore di Bue, large ribbed fruits that ripen late and need staking from the moment of planting.

Grass paper

The sachets are packed in Germany in grass-fibre paper, with no plastic film.

🌡️ Sow in warmth, plant out late

The tomato calendar plays out in three stages, and warmth governs the first. Sow under cover between February and April, at a depth of 1 cm, in a grow medium kept between 20 and 25 °C: seedlings then emerge in 6 to 8 days, compared with around 2 weeks in a grow medium at 15 °C. You transplant into individual pots at the 2 true leaf stage, burying the stem up to the seed leaves, since the tomato produces roots along the whole buried portion. Planting out waits until the frosts are over and the soil reaches 15 °C, which is mid-May in most regions. In aquaponics, the growing calendar places the sowing of tomatoes in mid-February and their arrival in the system in May.

Tomato seed needs warm soil

At 10 °C, a typical temperature for garden soil in March, a tomato seed takes more than 40 days to germinate, if it does not rot first, whereas the same seed comes up in under a week in a grow medium at 25 °C. Your seedlings should therefore be started indoors, in a greenhouse or under a cold frame, and join the garden as plants that are already established. Sowing directly in place is still possible in the South in late spring, but the harvest then begins much later than with plants raised under cover.

A grow light above the February seedling

In February, a window only gives a few hours of strong light, and a young tomato plant that lacks it becomes leggy: its stem lengthens, stays spindly and snaps at transplanting. The LED-lit germination trays each carry an 8-LED lamp, controlled by a shared timer set to 4, 8, 12 or 18 hours, so you can sow from mid-February in any heated room. With 6 trays of 12 cells, you can dedicate one tray to each variety and keep your labels in order until planting out.

🔢 From 10 to 20 varieties

The number on the box counts the varieties included, not the seeds: each packet holds one variety and its Latin name. A trained plant takes up about half a square metre, so the size of the vegetable garden sets the number of plants, and therefore the harvest. Going from 10 to 20 varieties mainly gives you the means to change your selection over several seasons and to compare two cherry tomatoes or two beefsteaks side by side, in the same soil and the same year.

🌱 Saving your own seeds

All the varieties in the box are open-pollinated, and the tomato is one of the easiest species for producing your own seed. Its flower almost always fertilises itself, so 3 m between two varieties is enough, in a temperate climate, to keep each one true to type. You take the seeds from a fully ripe fruit, leave them to ferment for 2 to 3 days in a little water to loosen the gel that surrounds them, then rinse them and dry them flat. Stored somewhere dry, cool and out of the light, they stay viable for 4 to 6 years. The article on germination failures reviews the causes of poor germination, and the Noire de Crimée page presents an heirloom variety sold on its own.

Technical specifications

The essentials

What you sow: Organic tomato seedsOne variety per paper herb sachet, labelled with its name.
The varieties in the kit: Green Zebra, San Marzano, Roma, Brandywine, Cuore di Bue, Black Crimea, Citrina, Figiel OrangeList taken from the packets in the box of 20.
Sowing period: February to April, under coverWindow for mainland France, to be adjusted depending on the region.
Seedling depth: 1 cmEach sachet states the exact value of its variety.
Germination temperature: 20 to 25 °CGrow medium temperature, not room temperature.
Germination time: 6 to 8 daysFrom seedling, under these temperature conditions.

To budget for separately

A heated seedling tray: Seed tray and heat matAt around 15 °C, germination takes 2 weeks instead of 6 to 8 days.
One stake per plant: 1.50 m minimumPut in place on planting day, before the roots have had a chance to establish.

In the box

1 box of organic tomato seeds, one variety per grass-paper sachet
1 label with common name and Latin name on each sachet

Variety names and packaging: ZenGreens kit, official photos checked on 07/10/2026. Germination times by temperature: OSU Extension (Oregon) table. Storage life: DIYseeds seed sheets.

Estimate your
delivery time

The kit, being light, is dispatched on its own or with the rest of your order. Exact shipping costs and final delivery times are displayed at checkout once your address has been entered. Outside the European Union, import duties and taxes remain the responsibility of the recipient.

Frequently asked questions

8 questions

6 key questions, 8 in the detailed view

What does the box of 20 varieties contain?

Type	Varieties in the kit	Use
Cherry	Figiel Orange, Cerise Rouge	Raw, in pots
Salad	Green Zebra, Citrina	Sliced
Sauce	San Marzano, Roma	Passata, preserves
Large meaty fruit	Brandywine, Cuore di Bue, Noire de Crimée	Salad, stuffed

The other packets complete these families. Each packet carries the name of its variety and the Latin name of the species.

Should you sow under cover or directly in the ground?

Are all varieties sown at the same time?

Can these tomatoes be grown in a pot on a balcony?

Why are my tomato seedlings tall and spindly?

They lack light, and often a little coolness. A seedling kept warm after germination, near a winter window, stretches its stem instead of thickening it.

As soon as the cotyledons have emerged, place the plants in the brightest light possible or under a lamp, in a room slightly cooler than the one used for germination. When transplanting, bury the stem up to the cotyledons: it roots along the whole buried section and the plant straightens up.

How do you save your own tomato seeds?

Choose a fully ripe fruit from a plant typical of its variety.
Cut it in half and scoop out the seeds with their gel.
Leave them to ferment for 2 to 3 days in a jar with a little water.
Rinse in a sieve: the gel comes away and the good seeds stay at the bottom.
Dry them flat on a plate, never on kitchen paper, where they stick.
Store them in a labelled packet, somewhere dry and cool.

Can tomatoes be grown in aquaponics?

Yes, and it is one of the most widely grown fruiting vegetables in this style of growing. It does, however, need a well-established system, with water carrying enough nutrients to feed flowering and fruiting, with particular attention to potassium.

The seedling is raised exactly as in the garden, then the plant moves to its grow bed at the stage where it would go out into open ground. The guide growing tomatoes in aquaponics covers pollination, pruning and the choice of varieties in detail.

How do you tell when a Green Zebra or a Noire de Crimée is ripe?

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Organic tomato seed collection, 10 or 20 varieties

The summary