The Vegetable Seed (Wales) Regulations 2005

3.  The seed shall conform to the following standards or other conditions as regards analytical purity and the content of seeds of other plant species—

Column 1	Column 2	Column 3
Species	Minimum analytical purity (percentage by weight)	Maximum content of seeds of other plant species (percentage by weight)
(a) asparagus	96	0.5
(b) beans of the following species—
(i) broad bean	98	0.1
(ii) French bean	98	0.1
(iii) runner bean	98	0.1
(c) beetroot	97	0.5
(d) Brussels sprouts	97	1.0
(e) red, Savoy and white cabbage	97	1.0
(f) carrot	95	1.0
(g) cauliflower	97	1.0
(h) celery	97	1.0
(i) chard and spinach beet	97	0.5
(j) Chinese cabbage	97	1.0
(k) cucumber and gherkin	98	0.1
(l) curly kale	97	1.0
(m) endive	95	1.0
(n) gourd	98	0.1
(o) kohlrabi	97	1.0
(p) large-leaved chicory and Witloof chicory	95	1.5
(q) leek	97	0.5
(r) lettuce	95	0.5
(s) marrow	98	0.1
(t) melon	98	0.1
(u) onion	97	0.5
(v) parsley	97	1.0
(w) pea	98	0.1
(x) radish	97	1.0
(y) spinach	97	1.0
(z) sprouting broccoli	97	1.0
(aa) tomato	97	0.5
(bb) turnip	97	1.0