Bloomsdale Longstanding Spinach

Amaranthaceae

Bloomsdale Longstanding is the gold standard open-pollinated spinach — a slow-bolt savoyed type and the benchmark all other spinach varieties are measured against. THE most bolt-prone crop in this category. PRIMARY bolt trigger is DAY LENGTH (>14 hours), NOT heat — backed by peer-reviewed research (Chun et al., HortScience 2000, 2001). Under 16-hour photoperiods, >85% of plants bolted within 3 days regardless of temperature. This makes spinach the first crop to bolt in spring. Fall planting is FAR more reliable. Semi-savoy hybrids (Space, Corvair) offer 1-2 weeks more bolt resistance than Bloomsdale's savoyed type, but Bloomsdale delivers superior flavor and cold hardiness down to 15°F.