Sorrel vs Arugula for Hydroponic Growing (2026)
Arugula is 10–25 days faster to harvest than sorrel (18–25 days vs sorrel's 35–50 days) and yields more per tray, while sorrel is perennial in hydroponics - producing indefinitely from the same root system once established.
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Arugula and sorrel both offer tart, distinctive flavours for salads, but they have fundamentally different production lifecycles. Arugula is an annual that completes its cycle in 18–25 days with peppery flavour. Sorrel is a perennial: slower to establish (35–50 days), yielding only 20–40 g per plant initially, but continuing to produce from the same root system across multiple seasons.
Side-by-Side Comparison
| Feature | Sorrel | Arugula | |---------|--------|---------| | Difficulty | Easy | Easy | | Days to First Harvest | 35–50 | 18–25 | | pH Range | 5.5–6.5 | 6.0–7.0 | | EC Range (mS/cm) | 1.0–1.8 | 0.8–1.4 | | Light (h/day) | 12–14 | 10–12 | | Water Temp (°C) | 16–22 | 15–21 | | Yield per Plant | 20–40 g/plant | 30–50 g/tray | | Key Flavour Profile | Tart, lemony, oxalic acid | Peppery, nutty |
Where Sorrel Wins
- Perennial growth means the same plant produces for months or years without re-seeding - lower long-term seed cost and labour.
- Unique lemon-tart flavour profile (from oxalic acid) has no direct substitute and commands specialty pricing.
- Broader pH and EC range (1.0–1.8) than arugula's 0.8–1.4.
Where Arugula Wins
- 17–32 days faster to first harvest (18 days vs sorrel's 35-day minimum).
- Higher per-tray yield (30–50 g at equivalent spacing).
- Lower minimum EC (0.8) runs effectively on dilute nutrient solutions - lowest-cost operation.
Growing Them Together
These can be co-grown with care: pH needs adjustment between their respective ranges (sorrel 5.5–6.5, arugula 6.0–7.0 - overlap at 6.0–6.5). EC overlap exists at 1.0–1.4. Light differs: sorrel needs 12–14 h while arugula runs optimally at 10–12 h. Run at 12 h and pH 6.0–6.5, EC 1.0–1.4 for a workable compromise. The real challenge: sorrel will remain in the system for months after arugula has been harvested multiple times and replaced.
Which Should You Grow?
- Choose Arugula if you want the fastest possible harvest, highest per-tray yield, and plan to re-seed regularly for continuous production.
- Choose Sorrel if you want a permanent low-maintenance producer with a unique tart flavour and are willing to wait 35–50 days for establishment.
- Grow both if you dedicate one net pot to a permanent sorrel plant and use the remaining sites for rapid-cycle arugula.