How many spathes does an anthurium plant give per year and what spacing on the bed?

Anthurium is a steady producer rather than a flush crop, a well established plant gives a handful of cuttable spathes spread through the year, not a big single harvest, and the exact number per plant per year is a range that depends on variety, plant age and management, so verify it locally. Plants are set on raised beds or in pots at a spacing that gives each plant room and good air movement, with a well drained coir based medium. Production builds up over the first year or two as plants mature, so early counts are low. The advantage is the long vase life and the round the year trickle of flowers, which suits a grower who can supply florists regularly. For the exact spacing and realistic annual spathe count for your chosen variety, confirm with the planting material supplier and your KVK before sizing your block.