Organic seeds

Organic 'Alto' Leek

Allium porrum.

Product code : GAIAS-0245

499$
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Organic 'Alto' leek (Allium porrum) from the seed company Gaia, a vigorous Bulgarian leek with a thick white stem and a full flavor

The 'Alto' leek is a cylindrical leek with a thick white stem , prized for its rapid growth and versatility. Renowned as a great Bulgarian variety, it can be harvested young to produce tender leeks in clusters , perfect for summer salads, or left to mature to obtain more robust and aromatic stems for autumn cooking. Its flavor intensifies with cold weather , developing a deep, vegetal sweetness after a few cool nights. Vigorous and reliable, it adapts well to both early harvests and extended cultivation into autumn.

A robust and elegant leek, it is a versatile variety for vegetable gardens seeking productivity and refined flavor.

Companion plants : Carrot, Onion, Celery, Garlic, Beetroot, Cabbage, Spinach, Lettuce, Tomato
Nefarious plants : Peas, Beans

Spread/carry : Cylindrical, upright
Plant height : 40 to 60 cm
Quantity per packet : 100 seeds
Certification : Environmentally friendly product
Special features : Thick white stem, rapid growth, can be harvested in bunches, flavor enhanced by cold

Leaf color : Bluish green
Texture/flavor : Smooth, full-bodied, more aromatic after chilling
Cold tolerance : Down to -7°C


Farming method

Start sowing 10 to 12 weeks before planting time. Sow densely in seed trays, lightly covering the seeds, then space them about 6 mm apart. When the seedlings reach 25 to 40 cm , transplant them into 15 cm deep trenches, leaving only 5 to 10 cm of foliage above the soil. Leeks prefer partial sun/shade (level 2) and regular watering (level 2). Moderate fertility and loose soil promote long, straight stems.


Harvesting and preservation

Harvest at all stages: young for tender, mild leeks, or mature for a more pronounced flavor. Quality is optimal after a few cold nights. Store leeks in a vegetable cellar, in slightly damp sand, at 1 to 2°C .


Usage ideas

• In salads when harvested young and tender
• In soups and broths for their characteristic sweetness
• Braised or roasted for a melt-in-your-mouth texture
• In quiches, tarts or savory pies
• As an aromatic base in many dishes


The 'Alto' leek offers a prized combination of rapid growth, versatility, and rich flavor. Whether harvested young or mature, it brings finesse and aromatic intensity to the vegetable garden and the kitchen.

Practical guide

How to use it

Uses in the garden

Au jardin, Poireau 'Alto' gagne à être placé selon son port, sa vigueur et l’accès à la récolte.

Good to know

Frequently asked questions

01 Comment conserver les semences de Poireau Alto avant le semis?
Pour Poireau 'Alto', les renseignements du sachet indiquent : Environ 100 graines · lot GOGOG521 · germination > 85 %.
02 Comment semer Poireau Alto?
Pour Poireau 'Alto', la période indiquée est les indications détaillées de la fiche. La méthode recommandée est Semis, avec une profondeur de 1,3 cm (1/2 po).
03 Quelles conditions favorisent la germination de Poireau Alto?
Pour Poireau 'Alto', le délai de germination indiqué est Généralement 14 à 30 jours dans les conditions recommandées, avec une température de germination de 7-29°C.
04 Où installer Poireau Alto au jardin?
Pour Poireau 'Alto', l’exposition recommandée est Soleil à mi-ombre. Le repère d’espacement indiqué est 15,2 à 30,5 cm (6 à 12 po). Pour la culture en pot, la fiche recommande : 5 à 10 L par plant, avec drainage libre.
05 Quand et comment récolter Poireau Alto?
Pour Poireau 'Alto', les parties comestibles confirmées sont : Bulbes et jeunes feuilles.