Bulbs
Flower Basics
Flower Beds & Specialty Gardens
Flower Garden
Garden Furniture
Garden Gnomes
Garden Seeds
Garden Sheds
Garden Statues
Garden Tools & Supplies
Gardening Basics
Green & Organic
Groundcovers & Vines
Growing Annuals
Growing Basil
Growing Beans
Growing Berries
Growing Blueberries
Growing Cactus
Growing Corn
Growing Cotton
Growing Edibles
Growing Flowers
Growing Garlic
Growing Grapes
Growing Grass
Growing Herbs
Growing Jasmine
Growing Mint
Growing Mushrooms
Orchids
Growing Peanuts
Growing Perennials
Growing Plants
Growing Rosemary
Growing Roses
Growing Strawberries
Growing Sunflowers
Growing Thyme
Growing Tomatoes
Growing Tulips
Growing Vegetables
Herb Basics
Herb Garden
Indoor Growing
Landscaping Basics
Landscaping Patios
Landscaping Plants
Landscaping Shrubs
Landscaping Trees
Landscaping Walks & Pathways
Lawn Basics
Lawn Maintenance
Lawn Mowers
Lawn Ornaments
Lawn Planting
Lawn Tools
Outdoor Growing
Overall Landscape Planning
Pests, Weeds & Problems
Plant Basics
Rock Garden
Rose Garden
Shrubs
Soil
Specialty Gardens
Trees
Vegetable Garden
Yard Maintenance
How Far Apart Do You Plant Petunias?
How Far Apart Do You Plant Petunias?. Petunias are a self-seeding annual. In other words, they propagate seeds on their own, spreading throughout your garden. Eventually, the spread will slow or stop as available soil nutrients are used. To accommodate a healthy, self-seeding petunia plant, you must leave enough space on each side of the plant.
Petunias are a self-seeding annual. In other words, they propagate seeds on their own, spreading throughout your garden. Eventually, the spread will slow or stop as available soil nutrients are used. To accommodate a healthy, self-seeding petunia plant, you must leave enough space on each side of the plant.
Size
Petunias will typically cover a 3-foot diameter after they begin to seed. This means you need to leave about 1 foot, 6 inches on each side of the petunia plant.
Considerations
To ensure healthier petunia growth, you should prune dead flowers. So-called "deadheading" will help ensure that the healthy flowers get enough nutrients, even as your petunias are expanding to fill their ideal 3-foot radius.
Setting
To ensure your petunias grow healthily in your garden, you must keep the soil moist to the touch. Petunias also require full sun; even moderate shade can hinder petunia growth.
