The seedlings should be planted at least ¾ inches/2 centimeters apart. Once they're ready to be planted in the ground, they need to be spaced to allow for their expected mature size. The adult size well may be less than expected. But the plants do better with adequate spacing. This way, their roots won't get intertwined, and the plants will have their own identifiable soil food web and moisture spheres upon which to draw for water, minerals, and dissolved nutrients.
Arborvitae should be planted about 3 to 4 feet apart for optimal privacy.
Hydrangeas should be planted about 3 to 5 feet apart to create a hedge.
Sweet corn should be planted about 12-18 inches apart in rows that are spaced about 30-36 inches apart.
Sunflower seedlings should be planted about 12 to 18 inches apart to allow enough space for them to grow and thrive.
Arborvitae should be planted about 3 to 6 feet apart to ensure proper growth and spacing.
Artichokes should be planted about 3-4 feet apart to ensure optimal growth and yield.
Blueberries should be planted about 4-6 feet apart to ensure optimal growth and yield.
Pine trees should be planted about 10-15 feet apart to achieve optimal privacy.
Raspberries should be planted about 2-3 feet apart to ensure optimal growth and yield.
Roses should be planted about 18-24 inches apart to ensure optimal growth and blooming.
Watermelons should be planted about 3 to 5 feet apart to ensure optimal growth and yield.
Arborvitae should be planted about 3 to 6 feet apart from each other to allow enough space for them to grow properly.