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Crop guide Hydroponic garden · hobbyist Français
Garden cress grown in a hydroponic tower

Leafy greens and brassicas · Easy

Garden cress

Lepidium sativum

NFT, Kratky or tray.

EC (mS/cm)
n/a
pH
n/a
Cycle
short
Difficulty
Easy

Sound origin

Lepidium sativum

Uncertain origin, probably the Middle East. It was already grown in ancient Egypt and has long been a fixture of European gardens.

Source: Wikipedia

What it provides nutrients

Per 100 g, raw · Garden cress, raw

n/aEnergy
91.1gWater
1.4gFiber
2.6gProtein
  • Rich in vitamin K
  • Rich in vitamin C
  • Rich in vitamin A
  • Rich in vitamin B9
  • Source of potassium
Vitamin K 542 µg 723 %
Vitamin A (beta-carotene) 4,150 µg 86 %
Vitamin C 52 mg 65 %
Vitamin B9 (folate) 95 µg 48 %
Potassium 368 mg 18 %
Iron 1.8 mg 13 %
Magnesium 41 mg 11 %
Calcium 75.5 mg 9 %

% of an adult’s reference intake (EU Regulation 1169/2011). “Source of”: at least 15 % per 100 g, “high in”: at least 30 % (thresholds of EC Regulation 1924/2006).

Source: Ciqual 2020 table (ANSES), food no. 20199

Key steps

  • The fastest crop in the garden: harvest in 10 to 15 days.
  • Sow thickly, continuously every 1 to 2 weeks.
  • Peppery flavor; quickly goes to seed in the heat.
  • Perfect in Kratky or on a tray, like microgreens.

In which system?

TowerNFTGrowing mediumKratky

Approximate calendar

SowingFeb., Mar., Apr., May, June, July, Aug., Sept., Oct.
Plantsnone
HarvestMar., Apr., May, June, July, Aug., Sept., Oct., Nov.

Garden, patio, balcony: Belgian and northern French climate, earlier farther south. Estimates to adjust with your own dates.

Frequently asked questions

Garden cress in hydroponics: what pH?

No specific range is published for this crop in the Oklahoma State table: we do not force an unverified figure. Start from the common range of 5.5–7.0 and write down your results.

Garden cress in hydroponics: what EC?

Oklahoma State has published no value for this crop. Start low, watch the growth and record your measurements in a log.

Garden cress: which hydroponic system?

Best suited: NFT and the Kratky method. NFT, Kratky or tray.

Garden cress: when to sow in Belgium?

Indicative window for a garden, patio or balcony in Belgium or northern France: February, March, April, May, June, July, August, September, and October. Adjust with your own dates.

Sources
  1. Mon Potager Hydroponique growing benchmarks

My trials

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