Companion Plant for Valerian

I have a nice display of Valerian, but it's an early bloomer, and I was looking for something (herb) to plant beside it that is a later bloomer. Can you suggest something? I'm getting ready to place another order, and would appreciate your input.

Valerian (Valeriana officinalis) is a tall herb reaching upwards to 5 feet (1.5 metres) high. It tolerates both partial shade and full sun. Because you don't say what conditions you have the valerian growing in, I will suggest similarly tall herbs that can tolerate both partial sun and full sun.
Here are some herbs that you can grow:
1. Aconite (Aconitum napellus): blue flowers (summer or late summer); 3-4 feet (0.8-1.2 metres) high
2. Echinacea (E. purpurea): purple, reddish or white flowers (summer or late summer); 3-4 feet (0.8-1.2 metres) high
3. False indigo (Baptisia australis): blue flowers (June-July); 3-5 feet (0.8-1.5 metres) high
4. New England aster (Aster novae-angliae): purple daisies (Sept.); 3-6 feet (0.8-2 metres) high
5. Chocolate Boneset (Eupatorium rugosum 'Chocolate'): bronze leaves, white flowers (summer); 3-4 feet (0.8-1.2 metres) high
6. Joe-pye weed (Eupatorium purpureum): rose-purple flowers (Aug. Sept.); 4-7 feet (1-2 metres) high
7. Blue vervain (Verbena hastata): lavender flowers (summer); 4-7 feet (1-2 metres) high