General
French sorrel, also known as buckler-leaf sorrel, has smaller, arrow-shaped leaves and a delicately sour flavour. Overall, it's a bit more refined than common sorrel.
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Facts and figures
Times
SummerDirect sowing from Early March to Late June. Transplant to bed from Early March to Late June. Pre-grow about 30 days before planting out, approximately between Early February and Late May. Harvest begins around Early April and continues until Late October.
AutumnDirect sowing from Early August to Late August. Transplant to bed from Early August to Late August. Pre-grow about 30 days before planting out, approximately between Early July and Late July. Harvest begins around Early September and continues until Late October.
Location and soil
Like other sorrels, it likes humus-rich, slightly moist soil in a sunny to partially shaded spot.
The shadier the location, the more tender the leaves – but the oxalic acid content also increases. So it gets more sour.
Neighbourhood
Doesn't get along with tarragon.
Crop rotation
French sorrel is perennial and is happy with a permanent spot for about 4 years. After that, you should divide it and move it to a different location.
Care and fertilising
Keep it moist.
Harvest and processing
To harvest fresh leaves all year round, cut the sorrel back several times.