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Organic Astarac White Sweetcorn - Ferme de Sainte Marthe seeds seeds

Zea mays Astarac
Maïs, Blé d'Inde (Canada)

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This plant carries a 6 months recovery warranty

More information

Value-for-money
'Blanc d’Astarac' sweet corn is a popular French heirloom variety. It was traditionally used for feeding geese and ducks, but the white kernels have such a fine flavour that they are perfectly suitable for making popcorn or polenta. It is semi-early and drought-resistant. Sow in May and harvest from August to October. Organic seeds.  
Ease of cultivation
Beginner
Height at maturity
2 m
Spread at maturity
35 cm
Soil moisture
Moist soil
Germination time (days)
7 days
Sowing method
Direct sowing, Sowing under cover, Sowing under cover with heat
Sowing period May
J
F
M
A
M
J
J
A
S
O
N
D
Flowering time June to August
J
F
M
A
M
J
J
A
S
O
N
D
Harvest time August to October
J
F
M
A
M
J
J
A
S
O
N
D

Description

'Blanc d’Astarac' sweet corn is an heirloom variety. It was traditionally used for feeding geese and ducks, but the white kernels have such a delicate flavour that they are perfectly suitable for making popcorn or polenta. This semi-early variety is particularly drought-resistant. Sow in May and harvest from August to October.

Sweet corn (Zea mays), also known as pole corn or sugar corn, is a form of maize with an exceptionally high sugar content due to a naturally occurring genetic mutation. It belongs to the Gramineae family alongside wheat, barley and rice. It is highly nutritious, containing more protein and five times more fibre than rice. It is also an excellent source of B vitamins, vitamin C, minerals and trace elements. It has a low glycemic index.

Sweet corn likes deep, light, cool soil rich in organic matter. It is a heat-loving plant that needs plenty of sunshine to grow. Sweet corn can be used to create attractive borders around your vegetable garden and individual plots while providing valuable shade for vegetables such as lettuces or cabbages.

Harvesting: Sweet corn is harvested 80 to 120 days after sowing, depending on the sunshine and water it has received. The ears are ready to be picked when the silks turn brown, and the kernels are well-developed. Check for ripeness by piercing a kernel with your fingernail - it should be tender and milky. When harvested too late, the sugars become starch and skin tough.

Storing: After harvesting, remove the green husk that is wrapped around the ear. Use quickly—the fresher, the better! Sweet corn can also be cooked, frozen, or preserved in jars for later use.

Good to know: Traditionally, maize crops were grown alongside squash and bean plants in Central and South America in a system known as Milpa agriculture. Beans enrich the soil with nitrogen, squash plants act as ground cover, and maize plants provide support for the beans to scramble up. Start by sowing your maize plants. When they are about 10 cm tall, sow two bean and two squash seeds around each young plant.

Harvest

Harvest time August to October
Type of vegetable Seed and pod vegetable
Vegetable colour white
Size of vegetable Medium
Interest Productive
Flavour Sweet
Use Cooking

Plant habit

Height at maturity 2 m
Spread at maturity 35 cm
Growth rate normal

Foliage

Foliage persistence Deciduous
Foliage colour medium green

Botanical data

Genus

Zea

Species

mays

Cultivar

Astarac

Family

Poaceae

Other common names

Maïs, Blé d'Inde (Canada)

Origin

Cultivar or hybrid

Annual / Perennial

Annual

Product reference32421

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Planting and care

Corn sowing:

Sow corn in full sun after soaking the seeds in warm water for 12 hours. In the garden, sow in May in well-warmed soil (at least 12°C). You can install a tunnel over early sowings until temperatures warm up enough. You can start sowing in pots, indoors, as early as April, and then plant them in May-June in the garden. Only sow one variety at a time, or two varieties with staggered flowering: corn hybridizes very easily and you wouldn't harvest the variety you sowed. If your garden is less than 200 m from a cornfield, you will need to protect your crop during flowering.

To sow in rows, dig furrows 3 cm deep, spaced 70 cm apart. Sow thinly. After germination, thin to 25-30 cm along the row. If you are sowing only a few plants, sow them in a square rather than one or two long rows, pollination will be better ensured.

To sow indoors, place 2-3 seeds per pot in seed compost, mixed with a little compost. Then plant the strongest seedling.

 

Corn cultivation:

Corn likes rich soil: add manure or compost when preparing the soil, in the previous autumn, to enrich the area intended for sowing. The roots are shallow, so hoeing should be very shallow. To promote anchoring, hill up the corn when it reaches 20 cm, and then again at 40 cm in height. Water regularly if it doesn't rain (once a week), and cover the soil with mulch to retain moisture (grass clippings, straw...).

To facilitate pollination, when the female flowers (located two-thirds up the stem) turn beige, shake the plant. This way, the pollen from the male flower (located at the top of the stem) will fall onto the female flowers.

The corn borer caterpillar, a destructive corn pest, sometimes burrows into the stems, causing them to break. As a preventative measure, shred crop residues before using them (compost or mulch). Practice good crop rotation by not growing corn on the same plot for 3 or 4 years. In case of a severe infestation, you can spray a solution of Bacillus thuringiensis.

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Seedlings

Sowing period May
Sowing method Direct sowing, Sowing under cover, Sowing under cover with heat
Germination time (days) 7 days

Care

Soil moisture Wet
Disease resistance Good
Pruning No pruning necessary

Intended location

Type of use Vegetable garden
Hardiness Hardy down to -29°C (USDA zone 5) Show map
Ease of cultivation Beginner
Soil Lightweight
Exposure Sun
Soil pH Any
Soil type Silty-loamy (rich and light), 130
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