Low
10 records
Little pollen. Fine alongside better pollen sources and inadequate on its own.
Plants by pollen value
The half of forage that plant lists routinely omit. Nectar is carbohydrate and feeds adult flight; pollen is protein and feeds larvae. A garden supplying only the first looks busy and starves the next generation, which is why every plant record rates them apart.
4 groups · 296 records in the catalogue
Moderate
119 records
A useful pollen contribution — enough to count towards brood rearing in that month.
High
140 records
Heavy pollen. These are the plants that matter in early spring, when a colony's protein demand is climbing and there is very little available.
Very high
27 records
The heaviest pollen sources there are. Willow, poppies, gorse and the mallows — several of which give nothing in nectar and are worth planting anyway.