- Show: 2019
- Name: Cowen Memorial Challenge Bowl
- Criteria: The winner of greatest number of points for Flowers section 2
- Prize: A silver bowl and PHS certificate
5. One red rose with own foliage
6. One pink rose with own foliage
7. One yellow or orange rose with own foliage
8. One white rose, with own foliage
9. Four roses, one or more varieties
10. One vase of miniature roses, 3 sprays
11. One vase of climbing roses, 3 sprays
12. One spike of flowers, one stem only
13. One vase of pinks
14. Two vases of flowers, any two distinct kinds
15. One vase of herbaceous flowers
16. One vase of liliums, 3 spikes
17. One vase of ornamental grass(es) (Max height 80 cm)
18. One vase of mixed sweet peas, 12 stems
19. One vase of annuals
20. A spray of a shrub (other than roses) bearing fruit, flowers and/or foliage
21. One bowl of pansies, 6 blooms
22. The most uncommon flower, named if possible
23. An indoor orchid, in flower
24. One hanging basket
25. A floral pot plant
26. Two pots of cacti or succulents (pots not to exceed 6 inches in diameter)
27. One zonal or regal pelargonium/ geranium grown in a pot not exceeding 6 inches in diameter
28. One vase of mixed garden flowers
29. The PHS Top Vase sponsored by Petersham Nursery
23 (b). An African Violet