Lentils

Lens culinaris
Botanical name
Lens culinaris
Plant category
Legumes

General

Lentils
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The lentil is one of the oldest cultivated plants in human history. It originally comes from the Mediterranean region and Western Asia. In Germany, you can only grow it in a few areas. It likes things very sparse. The Swabian Alb is one such area, where the famous Alb lentils are grown. Like all pulses, lentils are packed with protein. That’s why pulses fill you up so well.

Facts and figures

Light requirements
Sun
Nutrient requirements
Light feeder
Difficulty level
Expert
Culture (according to Gertrud Franck)
A - tall or wide crops, almost year-round
Growing period
110 days
Row spacing
20 cm
Plant spacing
5 cm
Growth height
40 - 60 cm
Sowing depth
4 cm
Germination temperature (minimum)
5 °C
Germination temperature (optimal)
18 - 22 °C
Germination type
Dark

Times

1
2
3
4
5
6
7
8
9
10
11
12
Direct sowing
Harvest

Direct sowing from Mid April to Mid May. After a growing period of 110 days, harvest can begin around Mid August and continues until Late September.

Sowing and planting

Finding the right soil here is tricky. If you’ve got a very sandy corner somewhere, maybe with some limestone gravel mixed in, you can give it a go — or perhaps try a pot. Sow the seeds about 4 cm deep, spaced 5 cm apart in the row, with 20 cm between rows.

Location and soil

Lentils like it sandy, barren and dry. And sunny.

Neighbourhood

In agriculture, lentils are grown together with cereals. With barley or oats, for example, to give the plants some support. Because of the different grain sizes, you can easily separate them by sieving. Lentils don’t like being planted with themselves or other pulses.

Good neighbours
Bad neighbours

Crop rotation

Alliums, i.e. onions, garlic and the like, as well as pulses are not good as predecessors or successors.

Good predecessors
Bad predecessors
Good successors
Bad successors
Very bad successors

Care and fertilising

Keep them weed-free. Only water when you notice the first signs of dryness, and don’t fertilise.

Harvest and processing

They ripen around August. The leaves and pods slowly dry out from the bottom upwards. Stop watering from that point on. Once they’re completely dry, cut the whole plants off above the ground and leave them to dry for a few more days. You could hang them under a roof overhang. Then you’re supposed to thresh them — I reckon you can also wrap them in a cloth and beat it out. Separate the collected lentils from the husks by sifting.