Roots and bulbs · Expert
Asparagus
Asparagus officinalis
Deep growing medium, experimental.
- EC (mS/cm)
- 1.4–1.8
- pH
- 6.0–6.8
- Cycle
- perennial
- Difficulty
- Expert
Sound origin
Asparagus officinalis
A plant of the eastern Mediterranean basin; the wild species is found from Europe to Mongolia.
Source: Wikipedia
What it provides nutrients
Per 100 g, raw · Asparagus, green, raw
- Rich in vitamin B9
- Source of vitamin C
% 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
- Experimental crop: you start from crowns and only harvest from the 2nd or 3rd year.
- Large volume of very free-draining growing medium.
- Harvest the spears at 15 to 20 cm, over a few weeks only.
- Then let the foliage grow to feed the crown.
In which system?
| Tower | NFT | Growing medium | Kratky |
|---|---|---|---|
Approximate calendar
| Sowing | Mar., Apr. |
| Plants | none |
| Harvest | Apr., May |
Garden, patio, balcony: Belgian and northern French climate, earlier farther south. Estimates to adjust with your own dates.
Frequently asked questions
Hydroponic asparagus: what pH?
Recommended pH: 6.0–6.8 (Oklahoma State HLA-6722 benchmark). Measure every day at the same time and correct in small doses, after adjusting the EC.
Hydroponic asparagus: what EC?
Recommended electrical conductivity: 1.4–1.8 mS/cm (Oklahoma State HLA-6722 benchmark).
Asparagus: which hydroponic system?
Deep growing medium, experimental.
Asparagus: when to sow in Belgium?
Indicative window for a garden, patio or balcony in Belgium or northern France: March and April. Adjust with your own dates.