What to Plant in August Extend your harvest and fill garden spaces before the first frost. 塞 Cool-Season Crops Quick-maturing greens and roots thrive in late summer warmth: Leafy varieties for salads Fast-growing root vegetables Early beans if started soon Reliable Perennials Establish before winter for blooms next year: Sun-loving flowers for lasting color Hardy options tolerant to heat and cool nights Annuals with Fast Color Fill gaps with blooms that flourish into autumn: Quick-starting flowers perfect for containers and beds Heat-Resilient Succulents Tough, drought-tolerant picks ready for sunny spots: Compact rosettes and trailing types for texture Late planting can be successful with consistent watering and early sowing for longer harvest windows.