9 Common Gardening Challenges and Solutions 9 Gardening Challenges & Solutions You Might Face in 2021. ... 1) Planting Too Early. ... 2) Proper Plant Spacing. ... 3) Buying Too Many Plants. ... 4) Managing the Weeds Before They Take Over. ... 5) Protecting Your Plants from Pests. ... 6) Identifying and Treating Plant Diseases. More items... 4 Jan 2021