Leafy greens and brassicas · Moderate
Swiss chard
Beta vulgaris subsp. vulgaris
Leaf by leaf; takes up space.
- EC (mS/cm)
- n/a
- pH
- n/a
- Cycle
- moderate
- Difficulty
- Moderate
Sound origin
Beta vulgaris subsp. vulgaris
It derives from sea beet, which grows wild on the shores of southern and Atlantic Europe. Grown since antiquity, it is already mentioned by Pliny the Elder.
Source: Wikipedia
What it provides nutrients
Per 100 g, raw · Swiss chard, raw
- Source of potassium
% 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).
Key steps
- Harvest the outer leaves.
- Watch for overcrowding in towers.
In which system?
| Tower | NFT | Growing medium | Kratky |
|---|---|---|---|
Approximate calendar
| Sowing | Apr., May, June |
| Plants | none |
| Harvest | June, July, Aug., Sept., Oct. |
Garden, patio, balcony: Belgian and northern French climate, earlier farther south. Estimates to adjust with your own dates.
Frequently asked questions
Hydroponic Swiss chard: 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.
Hydroponic Swiss chard: what EC?
Oklahoma State has published no value for this crop. Start low, watch the growth and record your measurements in a log.
Swiss chard: which hydroponic system?
Leaf by leaf; takes up space.
Swiss chard: when to sow in Belgium?
Indicative window for a garden, patio or balcony in Belgium or northern France: April, May, and June. Adjust with your own dates.