A dictionary of Proverbs (Oxford Paperback Reference)

ONE year’s seeding makes seven years’ weeding
On the danger of allowing weeds to grow and seed themselves: also used figuratively.

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  1866 Rural American 1 Dec. 354 It has been truly remarked that ‘one year’s seeding may cost ten years’ weeding’. 1873 HARLAND & WILKINSON Lancashire Legends 190 One year’s seeding makes seven years’ weeding. 1889 T. F. THISTEL-TON-DYER Folklore of Plants xi. A weed that runs to seed Is a seven years’ weed.. implies that disagreeable actions.. only too frequently cling to man in after years. 1980 Daily Telegraph 19 Jan. 20 My advice to weed-persons is: do not let your weeds grow to maturity and seed—’one year’s seeding means seven years’ weeding’. ■ action and consequence; garden lore
  

one see also BETTER one house spoiled than two; BETTER to live one day as a tiger.. ; a BIRD never flew on one wing; two BOYS are half a boy, and three boys are no boy at all; the BUYER has need of hundred eyes, the seller of but one; every DOG is allowed one bite; don’t put all your EGGS in one basket; one ENGLISHMAN can beat three Frenchmen; one FUNERAL makes many; one GOOD turn deserves another; one HALF of the world does not know how the other half lives; one HAND for yourself and one for the ship; one HAND washes the other; one HOUR’S sleep before midnight is worth two after; one man’s LOSS is another man’s gain; one man’s MEAT is another man’s poison; one PICTURE is worth ten thousand words; one man may STEAL a horse, while another may not look over a hedge; one STEP at a time; from the SUBLIME to the ridiculous is only a step; one SWALLOW does not make a summer; it TAKES one to know one; TWO heads are better than one; if TWO ride on a horse, one must ride behind; one VOLUNTEER is worth two pressed men; one WEDDING brings another.
one-eyed see in the COUNTRY of the blind, the one-eyed man is king.
onion see one DAY honey, one day onion.
open see (adjective) A DOOR must either be shut or open; (verb) a GOLDEN key can open any door; when ONE door shuts, another opens.