Petunia – Carpet Neptune Mix

mounding plants in a mix of colors

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Product Description

Petunia x hybrida

Compact, mounding plants in a mix of colors: true blue, blue, sky blue, lilac, blue lace, and white.  This is a multiflora variety, so it holds up really well against rain and wind.  They are an excellent choice for bedding, borders, containers, and hanging baskets.  Space these 10-14″ apart if planting in flower beds or 3-4 per hanging basket or container.  Pelleted seeds for easier sowing.


Start seeds 10-12 weeks before your last average frost.  Lightly press into sterilized, soilless seed-starting mix but do not cover as light is required for germination.  Kept at 70-75° F, germination is in 7-21 days.


Space in the garden according to each petunia variety’s specifications.  Petunias prefer full sun but will benefit from some shade very hot climates.  They require regular water, especially if they are in containers.  I water my container petunias almost daily during the hot spring and summer months here in the southeast.  They also require regular, weekly fertilizing.  I use liquid Miracle Gro or Jack’s Petunia FeED water-soluble fertilizer.  While most flowering plants require a fertilizer where the N-P-K ratio has a higher P number to promote more flowers, petunias need a higher N number to prevent a boron deficiency (yellowing of the leaves), especially if your soil is not acidic enough.  I prefer fertilizing my petunias once a week with liquid Miracle Gro.  To encourage more flowers, deadhead spent flowers.  If your petunias start to get leggy and unsightly, with some varieties you can cut the plants down to about 6″ above soil level, and in a few weeks, they will bloom again.

Additional Information

Plant Type



Summer, Fall

Bloom Color

Mixed Colors

Plant Height

Short (less than 12")

Sun Requirements

Full Sun, Full Sun / Partial Shade

Special Characteristics

Attracts Pollinators, Grows Well in Containers

Seed Type

Pelleted Seeds


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