Collective Nouns for Plants & Plant Products

• a bunch of flowers
• a bowl of rice
• a clump of trees
• a grove of trees
• a basket of fruits
• a crate of fruits
• a heap of durians
• a comb of bananas
• a vase of flowers
• a tuft of grass
• a shrubbery of shrubs
• a bunch of grapes/bananas
• a bed of flowers
• a bouquet of flowers
• a pod of peas
• a pack of brownies
• a nursery of plants
• a rarity of orchids
• a clone of aspen
• a tassel of corn
• an agar of arabidopsis
• a reservoir of succulents 
• a horde of hostas 
• a henge of prunus/stoneftruit
• a spike of cacti
• a pack of aloes
• a carpet of sphagnum
• a flurry of cottongrass
• a firework of ferns
• a chamber of boxwoods
• a drift of dandelions
• a droop of peonies
• a vincent of sunflowers
• a trembling of aspens
• a towering of redwoods

• a majesty of oaks
• an advance of birches
• a canvas of maples
• a mess of alders
• a gloom of yews
• a copse of trees
• a spinney of trees
• a stand of trees
• a nosegay of flowers
• a garden of roses/flowers
• an orchard of peaches
• a patch of grass
• a clump of plants
• a pot of plants
• a row of plants