A double petunia that blooms as heavily and performs as well as a single petunia? Yes, absolutely! This showy star of your hanging baskets or window boxes will turn heads all summer long. Blooms are huge, at least 4 inches across (sometimes larger!), and voluminously ruffled like the skirts of a can-can dancer. Cascade Double Blue grows 10-15 inches tall and 10-12 inches wide, creating a perfect mound of peony-like purple-blue pretties that are weather-resistant and easy to grow. Va va voom!
Growing Double Cascade Blue Petunia Seeds
Plant Petunia Seeds: Sow petunia seed in cell packs or flats, press into soil but do not cover. Needs light to germinate. Kept at 70-75°F., seeds germinate in 7-21 days. Transplant petunia seedlings into the garden 7-18 in. apart.
Grow Petunia: Full sun or part shade. Part shade preferred in hot climates.
U.S. Shipping Rates
Free shipping on U.S. orders over $60.00.
Free priority shipping on U.S. orders over $125.00.
Standard U.S. shipping is $5.99.
Priority U.S. shipping is $9.99.
International Shipping Rates
Shipping to Canada is $13.99.
International shipping to all other countries is $15.99.
We guarantee all the seeds we sell for one full year from the date of purchase. If you are unsatisfied with any seeds purchased from Swallowtail Garden Seeds, we will issue a refund. For customers in the U.S., we can send one-time replacements or issue a refund.