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Petunia – Supertunia® Black Cherry

Garden Height
6 - 12
Spacing
12 - 18
Spread
18 - 24
Habit
Mounding Trailing
Container Role
Spiller
Flower Size
Short
Flower Colors
Red
Light Level
Part Sun to Sun
Proven Winners

Attracts: Butterflies, Hummingbirds

Continuous Re-Bloom

Dead-Heading Not Necessary

Drought Tolerant

Heat Tolerant

Long Blooming

Uses Notes

Use in hanging baskets, window boxes, landscaping and combinations planters.

Maintenance Category Easy

Water Category Average

Bloom Time

Flower Form Container, Edging Plant, Groundcover, Landscape, Mass Planting

Soil Fertility Average Soil

pH A - pH 5.5 - 5.8

EC (2:1 Extraction Method) 1 - 2

Fertilization 200 - 300

Light Requirements High

Water Requirements Moderate to Moist

Rooting Out Temperature 65 - 72° Fahrenheit

Growing On Temperature 55 - 65° Fahrenheit

Holding Temperature 40 - 50° Fahrenheit

Planting and Timing Information

Early Spring through Fall Finish. Standard PPP.

Finishing Times [weeks]
4-5" and Quart Pot : 4-6
6" and Gallon Pot : 5-7
7-9" Pot : 7-9
10-12" and Two Gallon Pot : 8-10

Pinching and Growth Regulators

For all sizes of containers, pinch the liner 1–2 weeks after transplant; for containers larger than 6” and for hanging baskets, trim around the edge of the container as needed prior to spacing or hanging of the baskets. 

10-15 ppm Sumagic spray or 1-3 ppm Bonzi drench are effective at controlling growth. Apply as needed. Supertunia Minis may require higher rates of PGRs. Cold temperatures will also effectively control growth. -Supertunia Black Cherry is more susceptible to flower damage from chemical applications late in the crop cycle.

Pest and Disease Management

Good sanitation practices include keeping greenhouses clean at all times, eliminating weeds and debris, disinfecting equipment in greenhouses as often as possible and keeping hose ends off of the greenhouse floor. Good water management practices are critical for good, healthy plant growth.

Grower Tips

-Requires high light in production. -Needs 250+ ppm fertilizer. -Watch pH and EC levels. -Mini Strawberry Pink Veined, all veined varieties and Bordeaux are more sensitive to cold. Keep above 50 F. -Cold temperatures also control growth. -Yellow growth tips often indicate iron deficiency caused by high soil pH. -Do not bring Supertunia petunias in too early as they finish quickly. -Many common problems with Supertunia can be avoided if proper crop timing and the appropriate environment are provided. -Supertunia Black Cherry is more susceptible to flower damage from chemical applications late in the crop cycle. -Cooler growing temperatures, high light levels, proper spacing and drier growing practices can be very helpful in managing plant size.