Male and female japonica

Question

Very new gardener here so perhaps this is a daft question, but I have a male Skimmia japonica in the garden planted next to a female aucuba japonica. The male is covered in lovely flowers but the last two years the female has produced only a few red berries. Could this be because they are different japonicas or would that not make a difference? They are planted next to each other, and both seem in very good health, both large etc. Thank you.

Answer 1

Thanks you, downtoearthdigs, That’s very helpful

Answer 2

Truthfully there is not a lot of information on which would make the best 'companions'.
I did find that 'Mister Goldstrike' would be a good male for your female aucuba japonica.
And I found this list:
Skimmia x confusa Kew Green (M)
Skimmia japonica Fragrans (M)
Skimmia japonica Nymans (F)
Skimmia japonica subsp. Reevesiana (S)
Skimmia japonica Rubella (M)
Skimmia japonica Temptation (S)
Skimmia japonica Veitchii (F) Somestimes still sold under its old name Foremanii.