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Blue Wave Petunia

Another in the wave series that is probably the single most popular bedding plant in the country and as with others in the series an All-America Selection-this one for 2003. The color is a purplish-blue and the petals have a particularly velvety texture. 

10 pelleted seeds

Blue Wave Petunia 


Petunia hybrida


Germination: 10-21 days

Germination Temperature: Optimum soil temperatures 70-80ºF.

Seed Planting Depth: Sow on surface and press into soil

Starting Indoors: Start indoors 8-10 weeks before the last frost. Provide 70-80ºF soil temperature. Transplant after the last frost, 12-28" apart. Water seedlings regularly until established. 

Sowing Outdoors: We do not recommend starting petunia seeds outdoors

Growth Habit: Mounding, spreading

Height and Width: 8-10" x 36"

Spacing: 12-18" apart

Light Needs:  Full sun

Soil Needs:  Loose, rich, well-drained

Approximate days to flower from seed: 90-100 days

Uses: Flower beds, containers, hanging baskets, or window boxes 

Care: When grown in containers petunias need to be fertilized and watered regularly. This will keep the plants blooming all season long. During the heat of summer, they will need to be watered a few times a week. When growing petunias in the ground amend the soil with compost before planting.  Apply a liquid fertilizer every 1-2 weeks or use a time-release fertilizer at planting time. 


Customer Reviews

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Penny M.
United States United States
I recommend this product

Blue Wave Petunia

Although germination rate was not great (I believe out of 10 seeds about 5 germinated), the flowers on the plants that grew are absolutely stunning!

Pinetree Garden Seeds Blue Wave Petunia Review

Pinetree Garden Seeds

Hello Penny! Your picture is gorgeous, thank you for sharing! We do have a 90 day guarantee on our seeds so if you have issues with germination please reach out to us and we ware happy to send you a replacement packet. Happy Gardening! Matthew

Karen D.
United States United States
I recommend this product

Blue wave petunias

I had about 70% germination rate—but the remaining ones are healthy and hearty, blooming already (5/23).

Melanie H.
United States United States
I recommend this product

Looking Good!

I really like using Pinetree as I have just a homeowner's garden and I don't end up with seeds that don't get used before viability disappears. I seed enough to cope with any germination issues, but the Blue Wave Petunias have done really well. The pelleted seed makes it super easy to use.

Jessica S.
United States United States
I recommend this product


I place an order with Pinetree every year and recommend them to all my friends. As with most of the seeds I order from Pinetree, the Blue Wave petunias all germinated well within the given timeframe and I had 100% germination with this batch. I started them earlier than usual for my zone 5 garden, in an attempt to get larger starts than I normally do. I am really happy with how they look, and I only pinched them back knowing it was for their own good. The blooms they produced before pinching were phenomenal, and the scent of summer in my growing area was so welcome after a very long, even more isolated than normal, winter. I only wish I could share the photos!