The 'Supertunia Royal Velvet' petunia (Petunia 'Supertunia Royal ... These flowers need fed often -- add a slow-release fertilizer to new plantings to get them off to a strong start, then ...
Daily water and feeding every two to three weeks with a water soluble fertilizer became the ... The 10 varieties of Supertunia Mini Vista petunias have won just north of 200 awards.