Legumes · Easy
Pole bean
Phaseolus vulgaris
Dutch bucket + trellising.
- EC (mS/cm)
- 2.0–4.0
- pH
- 6.0
- Cycle
- moderate
- Difficulty
- Easy
Sound origin
Phaseolus vulgaris
Same species as the bush bean: native to Mesoamerica, where it was first domesticated.
Source: Wikipedia
What it provides nutrients
Per 100 g, raw · Green bean, raw
- Source of vitamin K
- Source of vitamin C
- Source of vitamin B9
% 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
- Climbs to 2 m and more: string or netting from sowing.
- 2 to 3 plants per Dutch bucket.
- Harvest spread over weeks if you pick every 2 to 3 days.
- Comes in green, wax (yellow), purple and shelling types.
In which system?
| Tower | NFT | Growing medium | Kratky |
|---|---|---|---|
Approximate calendar
| Sowing | May, June, July |
| Plants | none |
| Harvest | 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
Pole bean in hydroponics: what pH?
Recommended pH: 6.0 (Oklahoma State HLA-6722 benchmark). Measure every day at the same time and correct in small doses, after adjusting the EC.
Pole bean in hydroponics: what EC?
Recommended electrical conductivity: 2.0–4.0 mS/cm (Oklahoma State HLA-6722 benchmark).
Pole bean: which hydroponic system?
Best suited: growing medium (Dutch bucket). Dutch bucket + trellising.
Pole bean: when to sow in Belgium?
Indicative window for a garden, patio or balcony in Belgium or northern France: May, June, and July. Adjust with your own dates.