Life Cycle
Annual
Plant Characteristics
Double
Growth Habit
Compact
Bloom Season
Spring to autumn
Flavour Profile
N/A
Suitable for
Outdoor
Seed Type
Pelleted garden flower seeds
Plant Type
Ornamental
Planting Season
Spring
Fruit Size
N/A
Plant Height
25–35 cm
Light Requirement
Full sun
Water Needs
Moderate
Hardiness Zones
Annual in all zones
Container Garden
Excellent
Plant Spacing
20–30 cm
Planting Depth
Surface sow
Growing Conditions
Well-drained soil
Frequently Asked Questions
What does "pelleted" seed mean for this petunia?
What does "pelleted" seed mean for this petunia?
Pelleted seeds are coated in a thin clay-based layer to make the tiny petunia seed larger and easier to handle and space evenly when sowing, dissolving once watered.
Since this is a named hybrid series, will seeds saved from my plants next year look the same?
Since this is a named hybrid series, will seeds saved from my plants next year look the same?
Double Madness is a bred hybrid series, so seeds saved from your own plants likely won't reproduce the same double burgundy blooms reliably; fresh seed or cuttings are the more consistent route.
Do double-flowered petunias hold up as well in heavy rain as single petunias?
Do double-flowered petunias hold up as well in heavy rain as single petunias?
Double blooms tend to trap more water in their ruffled petals, which can make them look soggier or more prone to flopping after heavy rain compared to simpler single-petal petunias.
Do I need to deadhead this variety more than modern self-cleaning petunias?
Do I need to deadhead this variety more than modern self-cleaning petunias?
Many double petunia types benefit from manual deadheading to keep blooming steadily, unlike some newer self-cleaning single petunia varieties that drop spent flowers on their own.
Do double petunias still have the classic evening petunia fragrance?
Do double petunias still have the classic evening petunia fragrance?
Doubling the petal count can sometimes reduce noticeable fragrance compared to simpler single-flowered petunias, so scent may be milder in this variety.
Does this variety perform better in containers or in garden beds?
Does this variety perform better in containers or in garden beds?
Its compact, dense growth habit makes it especially well-suited to containers and hanging baskets, though it also performs well in garden borders with good drainage.