Get ready for an avalanche of 1.5-2 in., snow white, self-cleaning flowers, beginning in mid spring and continuing through early fall. Shock Wave White petunia plants grow 7-10 in. tall and up to 36 in. wide, taking heat and humidity in stride, and bouncing back quickly from heavy rain. Create luminous plantings in hanging baskets, window boxes, and garden beds.
Growing Shock Wave White Petunia Seeds
Plant Trailing Petunia Seeds: Sow seed in cell packs or flats, press into soil but do not cover. Needs light to germinate. Kept at 70-75°F., germination is in 7-21 days. Transplant into the garden 18-36 in. apart.
Grow Trailing Petunia: Full sun or part shade. In hot climates, part shade is preferred.
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.