Red hot pokers

[SpyWriter]

Mine seem to be later than most. Thet also hardly get beyond yellow before dying off. Soil, not enough feed, lack of sun or what?

[Robinia]

Red hot pokers like to be in a sunny spot in well drained soil, which should be kept moist all summer.If it's an old overcrowded clump divide them next spring & incorporate some compost into the planting area to help improve the drainage.