Planting Too Close! It is important to plant using the proper spacing when planting vegetable seeds or plants, fruits, nuts, landscape plants and just plants in general. Most of the time this information is located on the seed packet or transplant container, but sometimes it is either not there or hard to read. Another source of this information is seed or nursery catalogs either in printed form or online. If you look online and can’t find your specific variety, look for the same information for a similar plant to what you are planting. In landscapes you need to imagine what the plant will look like 20 years in the future. In vegetable gardens, how big will it be in 2-3 months? Proper spacing is important to ensure that there is proper ventilation for disease prevention, proper light penetration for good growth, and plenty of space for a root system to develop that is not competing for water and nutrients with other plants nearby.