Warm season vegetable gardens often are ready for a makeover this month. (Coastal gardens may be the exception, where mild conditions continue into October.) To get ready for cool-season crops, remove spent plants and clean up all debris that may harbor pests or diseases. Then boost the soil with compost and a slow release fertilizer high in phosphorus. If planting in containers, replace at least half of the soil with new potting mix. Toward the end of the month, cool season veggies can be planted, including broccoli, carrots, peas, spinach and lettuce.